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Search Term: " Naps "
Matter: The Purpose of Sleep? To Forget, Scientists Say   
Date:
February 07, 2017 12:59 PM
Sleep is really good for the body. It allows the body to rest and repair itself. Scientists also think we're supposed to forget certain things and that sleep helps with that as well. That forgetting process is discussed here. It's important and is just another reason we need to get enough sleep. It can be hard to do but is crucial to our health. Key Takeaways:
"In order to learn, we have to grow connections, or syNapses, between the neurons in our brains." Reference:
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=3903) What Is GABA And Why Is It Important For The Brain 
Date:
December 21, 2013 01:22 AM
The human brains need various supplements to make it work better. One such supplement is the gamma aminobutyric acid, abbreviated as GABA. It is the second most important neurotransmitter for the brain. The neurotransmitters allow syNapses that transfer information to gray matter in human. This amino acid gives human an inhibiting experience thus making one calm. This makes it possible for one to have a feeling of well being and tranquility. GABA on Human Body GABA is useful in the human body because it acts as neurotransmitters. This means you are protected from nerve impulses. This neurotransmitter cools the brain. Research has shown that it helps to increase alpha wave production. This is related to the feeling of relaxation we have in brains. With enough GABA, it is known to prevent the feeling of insomnia. This comes when neurons firing decreases to make one have a restful sleep. The calming effect helps an individual’s brain to have elevated moods which is an important part for reducing blood pressure. To enable an individual have more concentrations when working, they need to have increased levels of GABA. References:
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=2933) Why Is Magnesium L-threonate Good For The Brain?
Date:
February 05, 2013 01:09 PM
Magnesium L-threonate Magnesium L-threonate is one of the best ingredients that can be used to improve human brain function. It is able to increase the memory function. Many people use this product because it is good for their brain. Consuming this supplement every day is proven to be very effective to maintain the healthy brain. There are also other benefits of consuming this supplement, for example prevention of several dangerous brain diseases. It can prevent age related memory decline disease. Alzheimer's Disease This supplement is also good to treat people with Alzheimer's disease. The Magnesium L-threonate works by stimulating the changes in the syNapses. SyNapses are junctions located between neurons in human brain. The junctions are very important to transmit nerve signals in the brain. The human memory can be improved through this procedure. Quick nerve signals transmission is needed to improve the function of human brain. That is the reason why people should consume this supplement to improve their memory function.
Magnesium is also needed for supporting the normal cellular function in the human brain. The recommended daily intake for the magnesium is around 400 milligrams a day for men, 310 milligrams a day for women. People need to have enough magnesium intake for maintaining their brain function. There are many supplements available in the market that people can use to boost their magnesium intake. There are many studies showing that high magnesium intake is correlated with the memory enhancements in human brain system.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=2825) Coconut Oil for Memory Enhancement
Date:
December 27, 2012 12:53 PM
Coconut oil has been widely used for centuries for various purposes. Mainly, it is a cooking ingredient, used for frying and for adding flavor to meals. Aside from this, many nations have different ways of using it as treatment for various illnesses. Countries like Jamaica, Panama, and India believe that ingesting the oil helps prevent contracting any disease and helps in the speedy recovery when sick. Topical Uses: People from the Philippines and Thailand use the oil for massaging to provide relief from painful muscles and joints. Other topical uses are for moisturizing of the skin and for the healthy growth of hair. Since 2008, new studies have been conducted to test the effects of coconut oil in enhancing the memory and to cure Alzheimer's disease. MCT (Medium Chain Triglycerides) Benefit: The most astounding find is the presence of MCT or medium chain triglycerides in coconut oil in high concentration. This MCT creates a string of processes that ultimately helps in curing neurodegenerative diseases. MCT against Amyloid-Beta
Amyloid-beta is a protein that forms into plaques in the brains. They decrease the efficient functioning of the nerve cells that then causes the decline in memory. Most drugs prescribed to Alzheimer patients target these plaques, to dissolve them and consequently see an improvement. Studies done on dogs by incorporating MCT in their diets showed that the levels of amyloid-beta has declined, which is a very positive effect. Likewise, energy levels in the brain have gone up among the test subjects. MCT to Promote Ketone One cause of Alzheimer's disease is the inability of the brain to metabolize glucose and transform it to energy. As you all know, glucose is the main energy source of the body that provides it the energy it needs to function. This glucose comes from the carbohydrate that comes from food sources. Without this fuel, the brain cells could degenerate. Fortunately, glucose is not the only source of energy for the brain. It can also come from ketones, which are produced from fats in the liver. However, the liver does not continually produce this. The human body, being smart as it is, only produces ketones when the glucose level drops in order to compensate for the loss of energy source. This is why people who have cognitive disorders often go on a fat and protein diet to trigger the production of ketones, by lowering their intake of carbohydrates. Still, maintaining such a diet for long periods is hard. The good thing is studies have shown that ingesting MCT has increased the level of ketones in the body, regardless of the amount of glucose present in the system. It is believed that MCT is converted to ketone, thus, providing the brain the energy it needs. MCT and Omega-3 Fatty Acids Another study done on dogs showed an increased level of omega-3 fatty acids in their brain. Omega-3 fatty acids have many benefits to the body, including improvement of brain function. They support the effective transmission of energy from one neuron to another through the syNapses. This consequently makes learning easier, promotes faster reactions, and heightens memory. Unfortunately, this fatty acid is not produced in the body and people have to rely on food sources, such as fish and nuts. Studies have shown that MCT from coconut oil induces the production of omega-3 from fats that are already present in the body.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=2781) What does GABA Do in the Brain?
Date:
November 02, 2011 07:41 AM
GABAGABA or Gamma Amino Butyric Acid is a neurotransmitter of the brain. It is considered to be the main inhibitory brain chemical among mammals. In ordinary terms, it significantly regulates the firing of impulses by the neurons. This chemical is naturally produced by the brain and generally acts as a balancer together with other neurotransmitters. This neurotransmitter has a key role in the regulation of nerve excitability all throughout the nervous system. It effectively maintains the equilibrium of the body and the brain in excitation status. Chemically speaking, GABA is classified as an amino acid. However, GABA is not a building block of protein like the other amino acids. This is the reason why in the medical field, GABA is rarely considered as an amino acid. Moreover, GABA is the prime brain chemical responsible for the regulation of muscle tone among humans. In a disorder called Spastic Diplegia, the absorption of GABA into the muscles is weakened because of damage nervous tissues and cells. This would significantly lead to hypertonic muscles in which the muscles will experience spasms and can not anymore recognize and process the neurotransmitter GABA. On the other hand, GABA in insects acts as both inhibitory and excitatory neurotransmitter.
The BrainAs mentioned above, GABA is an inhibitory neurochemical. It functions at the inhibitory syNapses of the brain by attaching to receptor sites in the plasma membrane of both pre – and post – synaptic nerves. Once GABA has bind with the receptor sites, it will cause the ion channels to open and permit either the entry of chloride ion which has a negative charge or exit of potassium ion which has a positive charge. Potassium is the main electrolyte inside the cell. This opening of ion channels will then cause the cell to be either hyperpolarized or re – polarized. During brain development, GABA also plays a significant role. It significantly controls the proliferation of brain progenitor cells and development of syNapses as well as the differentiation and maturation of neurites. Furthermore, GABA is also responsible for the growth and development of embryonic and nerve stem cells. It also activates GABA receptors which lead to the halting of cell cycling in the S – phase. As a result, this will limit the growth of cell thus preventing abnormal growth and even malignancies. If GABA is in inadequate level, muscle tone is disturbed making it always tensed and the mind will keep on working and working because there is no brain chemical to stop it. Therefore, GABA must be importantly maintained within normal limits. GABA is naturally produced by nerve cells. However, GABA supplement is now available so that adequate amount of such brain chemical will be administered to the body as needed. GABA supplements can enhance the sleep onset and quality. It can also provide a relaxing feeling and reduce stress and muscle over – activity. Other theories also state that it can regulate mood and behavior thus promoting the total well – being of the person. Ongoing studies are being conducted to show more evidence on GABA’s effect with Human Growth Hormones.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=2532) Taurine - Essential or Non-Essential Amino Acid - You Decide?
Date:
February 17, 2011 10:56 AM
Amino Acid Taurine Is Essential For More Than You ThinkTaurine is an organic compound with acidic properties, which is synthesized in the pancreas in adults, but an essential amino acid in infants. Many neutraceutical products for infants are fortified with taurine, inasmuch as some newborns do not have the enzymes required to synthesize taurine. Taurine deficiency in adults results from deficiencies in other organic compounds, notably methionine and cysteine, which are its immediate precursors within the body. Helps in Brain Development It has long been postulated that taurine plays an important role in the human brain, especially in infants, protecting the nerve cells from possible neonatal damages. Taurine continues to affect the nervous system as we age, acting on gamma-aminobutyric acid, or GABA, and consequently enhances inhibitory synaptic transmissions. In addition, taurine is alleged to stimulate continuous activation of syNapses characteristic of long-term potentiation, which memory and learning ability stem from. Stabilizes Glucose Levels Taurine is a powerful inhibitor of glycation, a process by which sugar molecules attach themselves to other biomolecules without the aid of enzymes, and thus subsequently impair the functions of these biomolecules. This process may take place inside or outside the body, but the substances that result from this process, which are referred to as advanced glycation end-products or AGEs, contribute to the formation of a number of major disorders in later life such as cardiovascular diseases, Alzheimer’s disease, age-related deafness and blindness, and cancer. Taurine keeps the cells from taking up AGEs from the blood, which is slowly excreted in the urine. Regulates Adipose Tissues It has also been observed that dietary taurine influences the metabolic pathways that give rise to the formation of adipose tissues, the fat reserves of the human body. These fat depot appear anywhere in the body, but are commonly tied to the subcutaneous fats, those that we see on the belly, chest, arms, and thighs. Moreover, body fat percentage has been an indicator of obesity, which is central to the use of taurine in regulating adipose tissues. Influences Lipid Absorption Taurine is a major component of bile, the fluid produced by the liver, stored in the gallbladder, and secreted in the small intestines to aid in the digestion of triglycerides, cholesterol, and other lipids. Also, several studies point to the effect of taurine on the binding of proteins to lipids to form lipoproteins, compounds that have been notoriously labeled as bad cholesterol. Not surprisingly, taurine has been suggested to maintain healthy levels of blood cholesterol and prevent cardiovascular diseases. Fights Oxidative Stress Sodas have become a part of our daily diet today, but little did we know that they are risk factors for oxidative stress, the continued peroxidation of cellular structures. Fructose in sodas and other sweetened beverages is the most dangerous of all sugars, inasmuch as it releases by-products called AGEs, which are highly reactive to oxidation. AGEs do not get excreted right away and are instead absorbed by cells, leading to irreversible damages to neuronal and vascular tissues in later life. Intake of taurine removes this problem. Have you had your Taurine Today?
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=2239) Inositol And Choline
Date:
December 11, 2008 12:19 PM
Inositol is a member of the vitamin B complex family, being referred to as vitamin B8, but is not strictly a vitamin because it is biosynthesized in your body. Vitamins are essential substances that are not manufactured by your natural biochemistry, and must be taken in your diet. However, to all intents and purposes it works like a member of the vitamin B family. The main function of myo-inositol (the commonest isomer of inositol) is in the health of cell membranes, particularly those that comprise the marrow, eyes, intestines and the brain. Without proper regulation of the cell membrane, the cell cannot function effectively. Some of its effects include healthy hair and controlling estrogen levels. It is also believed to help to reduce cholesterol levels in the blood. A deficiency will result in hair loss, eczema, increased blood cholesterol levels and eye abnormalities. You might also suffer constipation, although this is not as serious a condition as those preceding. It is present at highest levels in the heart and brain, which indicates where it is mostly used, although it also helps the liver to break down fats and enables the nerves and muscles to operate as they should. Those that are depressed are frequently found to have low inositol levels in their spinal fluid, so it is believed to play a part in that condition. It is known that the substance takes part in the function of the neurotransmitter serotonin, which is known to play a part in depression, and initial signs are that its use in the treatment of depression could be effective. Neurotransmitters are responsible for passing messages across the gap (syNapses) between nerve cells, their messages being decoded by the neuroreceptors. A healthy nervous system depends on healthy neurotransmitters. For these reasons, inositol has also been tried on other conditions of the nervous system. These include bipolar disorder, bulimia, panic disorder, obsessive compulsive disorder and attention deficit disorder. So far, results have been inconclusive as to its effectiveness, but it is early days yet and field tests are continuing. A test carried out in Beersheva, Israel, in 1997, found that treatment with inositol produced significant improvement in the depression of 28 patients after four weeks on the Hamilton Depression Scale1, and 21 patients tested with panic disorder (with and without agoraphobia) showed significant improvements in their condition, including agoraphobia. Results on 13 patients with obsessive compulsive disorder also showed significant improvement. These were all double-blind tests. However, not all tests have been so conclusive, and a study on 42 people with sever depression who did not respond to conventional antidepressant, also failed to respond when inositol was added to their medication.2 Results are therefore not conclusive. Four hundred people took part in a double-blind test that indicated a possible improvement in the symptoms of polycystic ovary syndrome when treated with inositol 3,4 and another that inositol treatment on patients taking lithium could help reduce the symptoms of psoriasis, a skin condition believed to be caused by a reaction of the immune system and nerves.5 The supplement has also been found to be just as effective as Luvox (fluvoxamine – similar to Prozac) after four weeks treatment. Although these results are good, they are inconclusive, and more data is need before any indisputable conclusions can be drawn. However, treatment with inositol might be worth considering if conventional treatment for these conditions has been unsuccessful. The most common natural form of inositol is myo-inositol, an isomer of cyclohehexanehexol, a carbocyclic polyol that form the structural basis for secondary messengers in the cells of eukaryotes. A secondary messenger system is one whereby a signaling molecule is released in response to a signal from a primary messenger such as a neuroreceptor, which then activates certain intracellular proteins known as effector proteins that exert a response from the cell. An example is cAMP (cyclic adenosine monophosphate) that is a secondary messenger that activates protein kinases and allows them to phosphorylated proteins. Eukaryotes are organisms that contain cells composed of complex components contained within a cellular membrane, and that also contain a nucleus. Examples are fungi, plants and all animals. Examples of non eukaryotes include the bacteria family. It is frequently recommended that inositol is most effective when taken with an equal amount of choline, although this might be due to the fact that when inositol deficiency is detected, choline is also frequently deficient. Both are vitamin B family like, and both are lipotropic, in that they aid the breakdown of fats in the body. It is not clear whether this is true or not, but taking both would certainly not harm you, and might be of great benefit. Inositol is not essential, because it can be obtained from beans, nuts, seeds, whole grains, cantaloupe, brewer’s yeast, liver and vegetables. Bacteria in the gut also act on the phytic acid (inositol hexaphosphate) contained in citrus fruits to form inositol. However, be careful if you drink a lot of coffee. It destroys inositol, and if you are taking the supplement medicinally, steer clear of coffee during your period of treatment because it will lose its effect. Excessive coffee drinking can also result in a general depletion of inositol from your diet, and hence a deficiency. In such a case you are advised to take a supplement, preferably along with choline that might also be deficient. Although there have been no adverse side effects reported, no specific longer term safety studies have been carried out on inositol. Because of the way it works, inositol should be avoided by people with liver or kidney disease, and also by expectant or nursing women. It should be avoided by young children until safety tests have been carried out, and it is believed that it can cause manic effects in those suffering bipolar disorder. Other than for these specific cases, trials with many times the average daily intake of the substance, it currently appears safe to take inositol as a long-term supplement. However, as with all such supplements intended for specific disorders, you should seek the advice of your physician. References: 1. Levine J: Ministry of Health Mental Health Center, Faculty of Health Sciences, Ben Gurion University of the Negev,Beersheva, Israel ur Neuropsychopharmacol, 1997 May, 7:2, 147-55 2. Nemets B, Mishory A, Levine J, et al. Inositol addition does not improve depression in SSRI treatment failures. J Neural Transm. 1999;106:795-798. 3. Gerli S, Mignosa M, Di Renzo GC. Effects of inositol on ovarian function and metabolic factors in women with PCOS: a randomized double blind placebo-controlled trial. Eur Rev Med Pharmacol Sci. 2003;7:151-9. 4. Gerli S, Papaleo E, Ferrari A, et al. Randomized, double-blind, placebo-controlled trial: effects of myo-inositol on ovarian function and metabolic factors in women with PCOS. Eur Rev Med Pharmacol Sci. 2007;11:347-354.
5. Allan SJ, Kavanagh GM, Herd RM, et al. The effect of inositol supplements on the psoriasis of patients taking lithium: arandomized, placebo-controlled trial. Br J Dermatol. 2004;150:966-969.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1948) Horny Goat Weed
Date:
December 06, 2008 10:05 AM
Horny Goat weed, correctly named Epimedium, or Yin Yang Huo in Chinese, is one of over 60 herbaceous plants of the Berberdaceae family. It grows naturally in Southern China, and also in Korea, Southeast Asia and some parts of Europe. Other names given to include Fairy Wings and Bishop's Hat. Horny goat weed has been viewed as a natural alternative to Viagra, and many species of Epimedium are said to possess aphrodisiac properties, and is said to have got its name from a Chinese goat herder who notice that his goats became more 'frisky' with the lady goats after eating the plant. In fact studies have indicated to increase vitality, particularly the libido and male sexual vitality, although it also possesses some other health benefits in its effect on dementia and osteoporosis. The term 'horny' is used in the colloquial sense, and has nothing to do with the shape of the plant, the flowers of which are star-shaped. In fact the Chinese name for it means 'licentious goat weed', making the English translation quite clear. The main ingredient in horney goat weed is icariin, a flavonoid glycoside that acts as a PDE5 inhibitor. Others include the similarly named, but totally different chemical, icaritin, and also many other that will be discussed later. It is icariin on which we shall focus for the time being. Since this is central to its effect on erectile dysfunction, some time will be spent on explaining what PDE5 inhibitors do. cGMP (Cyclic guanosine monophosphate) is a chemical that relaxes smooth muscle tissue, including the vascular smooth muscles in blood vessels. This can lead to the dilation, or increase in size, of blood vessels and increased blood flow. The corpus cavernosum of the penis is a spongy area that runs the full length of the penis, and contains many blood vessels that can be dilated through the action of cGMP and allow the increased blood flow to create an erection. PDE5 (phosphodiesterase type 5) is an enzyme that can degrade cGMP and prevent the relaxation of these blood vessels, and so prevent them from dilating. A PDE5 inhibitor, such as icariin, prevents the PDE5 from degrading cGMP, and so allow a normal erection. Sidenafil, commonly known as Viagra, is a similar PDE5 inhibitor and works in the same way as icariin. Hence, the effect of Viagra is not to create an unnatural erection, but in fact to allow the cGMP to do its natural work by preventing the phosphodiesterase from stopping it doing so. This is just one of the effects of horny goat weed: it is a more natural PDE5 inhibitor than Viagra is. It is also more specific than Sidenfil, and does not interfere with any of the other phosphodiesterases that are essential for other purposes. However, its effects do not stop there, because icariin possesses other properties, and is also only one of the many components of epimedium that can increase vitality. Among these are a number of flavonoids in addition to icariin, sterols and the isoquinoline alkaloid magnaflorine, that possesses antioxidant properties and reduces LDL cholesterol. The exact mechanism by which horny goat weed works to increase sexual desire is unknown, but it is believed that it inhibits the enzyme acetylcholinetsrase (AChE). Cholinergic syNapses are the spaces between brain cells that allow electrical impulses to be transmitted, and are an essential component of neuromuscular system response to stimulation. AChE can stop these from working properly, and prevent neurotransmitters from effectively allowing sexual arousal. Horny goat weed can inhibit the activity of this enzyme and allow the neurotransmitters such as serotonin, dopamine and norepinephrine to do their proper job in allowing sexual arousal to occur. This, again, is a natural and not a chemical solution. It has also been found to reduce cortisol levels that cause stress which also reduces sexual desire. The effect of Epimedium on smooth muscles can also aid those suffering from pulmonary hypertension, in which the small blood vessels in the lungs become too narrow to be effective in allowing the transfer between oxygen and carbon dioxide. PDE5 inhibitors can help these blood vessels to relax and so be more easily dilated in the same way as those in the corpus cavernosum. Once dilated, they are able to carry more blood to and from the lungs and allow the reoxygenation process to continue smoothly. Research has also discovered the possibility of horny goat weed possessing monoamine-oxidase inhibition properties. Monoamine oxidase enzymes can deaminate hormones such as dopamine, and can significantly reduce the production of testosterone. The inhibitor prevents this happening, and leads to elevated levels of dopamine, and also of serotonin and noradrenaline. Dopamine encourages the pituitary gland to release luteinizing hormone that in turn promotes the production of testosterone by the testes. Another property of horny goat weed is that it can protect against the toxin beta-Amyloid, a protein that damages DNA in the brain, causing the death of brain cells and the accumulation of dead cells in your brain. This in turn leads to dementia and potentially Alzheimer's disease. The use of Horny goat weed is being studied closely in relation to this property. The active ingredient here is icaritin (not to be confused with icariin) Epimedium also has implications in the treatment of the cartilage and bone damage that occurs with arthritis and osteoporosis. It is possible that this is connected with the antioxidant and anti-inflammatory properties of magnaflorine, and icariin has been found to have bone-healing properties. It is known that damaged cartilage treated with horney goat weed displayed signs of growth and regeneration when compared to a placebo. However, the most popular use of horny goat weed is in its effect on the libido and erectile dysfunction. The effect on the libido and sexual desire works equally well for men and women, and it is a preferred natural remedy to synthetic equivalents such as Viagra, Levitra and Cialis. The added benefits of the natural product render epimedium the preferred and safest solution for many people.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1945) Huperzine And Memory
Date:
December 04, 2008 01:20 PM
Chinese club moss goes by the name Huperzia serrata, and gives its name to the sesquiterpene alkaloid it contains: huperzine A. This alkaloid has been found to be a superstar in the arena of brain-saving treatments for conditions such as Alzheimer's and age-related senility. Studies in China have found up to 60% improvements in the cognitive functions of such patients, and its potential has been recorded in the Journal of the American Medical Association. This is no mere folk remedy, and is the subject of serious study. Known as Qian Ceng Ta, Chinese club moss has been a part of traditional Chinese medicine for centuries for the treatment of fever and inflammation, which is not surprising considering that most plants contain antioxidants and anti-inflammatories. However, what is unusual is the fact that it has also been found effective in treating some forms of dementia and depression, and also helps to reduce the incidence of panic attacks in those susceptible to them. Not only that, but the plant has been found to possess diuretic properties, and a reduction in the swelling associated with water retention could also help to reduce the pain and other effects of swelling and inflammation. However, for now it is its effect on the brain that we are concerned, and research has indicated the likely mechanism by which huperzine A works. Huperzine is an enzyme inhibitor - specifically inhibiting the enzyme acetylcholinesterase that breaks down acetylcholine, a neurotransmitter involved in the processes of memory, learning and mood. Outside the brain, it is involved in the movement of skeletal muscle tissue as well as in the regulation of cardiac and other smooth muscles such as those of the blood vessels. When acetylcholinesterase (AChE) attacks acetylcholine (ACh), the latter attaches to a chemical site on the enzyme where it is then destroyed. It is a deliberate function of the body, designed to terminate a synaptic transmission. The purpose of a neurotransmitter is to allow the transmission of an electrical impulse form one nerve cell to another over a gap between them known as a syNapse. Once the transmission has been completed, the enzyme can destroy the neurotransmitter, and then another takes its place. In fact one molecule of AChE can destroy around 5,000 molecules of ACh. However, with age and for other reasons, these neurotransmitters can become depleted so that it becomes increasingly more difficult for brain cells to communicate with each other, and their destruction becomes undesirable. There are drugs available to help prevent this happening (e.g. donepezil, galantamine and tacrine), and so help to improve the memory and mental function of people as they grow older or contract conditions such as Alzheimer's disease. Huperzine A has been found to take up the site in the acetylcholinesterase molecule that would normally have been used by the acetylcholine, and so save it from destruction. The more Huperzine A molecules present, the more acetylcholine available to pass messages between brain cells, and the stronger the cognitive function of the subject or patient. The pharmaceutical drugs mentioned in the previous paragraph work in exactly the same way. This is a very specific reaction, one molecule adopting exactly the same space as the other, and has been proved scientifically by comparing the physical shapes of the two molecules. It's just like a jigsaw puzzle, where only one piece can fit into each position. Except here there are two: Huperzine A and acetylcholine both fit into the exact same place in the chemical structure of the acetylcholinesterase molecule. The biochemistry of the reactions involved is very complex, and shall not be discussed here, but the upshot is that Huperzine A can do exactly the same job as modern drugs to avoid this hydroxylation of the ACh needed for the proper functioning of your brain. In fact, clinical trials have indicated Huperzine A not only to be comparable in effect to the drugs current used, but also likely safer with respect to the possible side effects. This has still to be confirmed, but the National Institute on Aging is currently carrying out a trial to evaluate this claim in tandem with its effect on Alzheimer's disease. It has also been examined at Harvard University for its effect on epilepsy on patients with whom alternative pharmaceutical treatments have been unsuccessful. Another suggested benefit of Huperzine A is that it is an NMDA (N-methyl D-aspartate) receptor antagonist that provides protection against damage to the brain by an excess of glutamates, and that it can also help to protect nerve cells from damage. Since NDMA is responsible for the transmission of some types of pain, the antagonist can also act as an analgesic. There are other benefits that Chinese club moss can provide, and myasthenia gravis is one of them. Although relatively rare, this is a serious condition in which acetylcholine receptors are deactivated on muscle cells. This is achieved through the autoimmune system malfunctioning and creating antibodies against the receptors, and the end result is paralysis and respiratory failure. Huperzine A reduces the AChE available and so might possibly enable the acetylcholine to work more effectively and delay or even stop the deterioration of muscle function. When people hear of muscle paralysis they frequently forget that breathing requires muscle function, as indeed does your heartbeat. This is currently surmise, and studies are being carried out to determine whether or not this usage of Huperzine A is viable. Another promising application of Chinese club moss extract is in preventing organophosphate poisoning. These pesticides permanently suppress acetylcholine. This results in seizures due to a lack of interruption of the signals from nerves to muscles. The seizures can result in rapid death from uncontrollable seizures, or from permanent contraction of the diaphragm muscle that allows breathing. Although no human studies have yet been carried out, animals given Huperzine A prior to organophosphate exposure have survived without seizures. There are no doubts that Chinese club moss and the Huperzine A extracted from it are effective in preventing the suppression of acetylcholine, and in permitting the proper activity of this important neurotransmitter. It is finding an increasing number of potential uses beneficial to the human body, not the least of which would be a partial remedy for some of the effects of dementia and Alzheimer's disease.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1944) GABA
Date:
August 26, 2008 04:58 PM
GABA is gama amino butyric acid, and is an inhibitory neurotransmitter that is essential for the proper function of your brain and the central nervous system, and has the effect of reducing excessive brain activity and promoting a state of calm. For many people, the rush of daily life, with its problems, worries and external stimuli, can over-stimulate the brain to the extent that it can all seem too much for them. They feel anxious and overwhelmed, and wish that they could just go into a quiet corner to get away from it all. Most people have felt like that at some time, but the demands of life do not allow them that luxury. They just have to bear it and get on with life. That is where GABA can come in. It can be used to bring your nervous system back to base, and make you feel more relaxed, calmer and more able to meet these challenges that life often throws at you. When you feel that you just can’t relax or concentrate on what you are doing, GABA can help you. If you look around you and everybody else seems OK, without apparently feeling the stress and irritability that you feel, and then perhaps your problem is due to a GABA deficiency. GABA is the principal inhibitory neurotransmitter in your brain, and a deficiency would certainly give you the symptoms that you are feeling. Let me explain why. As your brain becomes excited, it can run out of control and needs some form of modification or inhibition to keep it acting as normal. Without this you would become increasingly more restless and irritable, and ultimately have seizures. GABA is not only the main inhibitor in your brain, but also helps in the production of endorphins that provide you with a sense of well being. That sense of calm you feel when endorphins are produced, for example during exercise or sexual intercourse, is commonly referred to as the ‘endorphin effect’. GABA is at its highest concentration in specific areas of the brain, including the hypothalamus, the hippocampus and the central brain area, and is present in up to 40% of all syNapses, the small gaps between neurons across which brain cells can communicate with each other. It is produced during the Krebs or Citric Acid Cycle that is responsible for cell respiration or the production of energy from carbohydrates. It is synthesized from alpha-keto glutarate, which is produced just before the Succinyl Co-A stage of the Krebs Cycle in the brain. Vitamin B6 in involved in its metabolism, and a Vitamin B6 deficiency can lead to a deficiency in GABA that might result in seizures. Basically GABA works by inhibiting the firing of neurons in your brain, and thus reducing general brain activity. The GABA receptor allows more chloride ion to enter the brain cell, thus helping to maintain the electrical charge within the cells. Bezodiazepines (e.g. diazepam) work by increasing the effectiveness of GABA in opening the chloride ion cells to allow more chloride ion to enter the neurons, and caffeine does the opposite, and inhibits this property of GABA. Thus diazepam works as a minor tranquilizer and caffeine as a stimulant. Alcohol has a similar effect to the benzodiazepines, increasing the release of chloride into the neurons, and is the major way in which alcohol affects the brain. In fact, tolerance to drugs and withdrawal symptoms can be explained by the receptors adapting to the drug. They may increase in number, which means that more of the drug is needed to work on them, and they can become hypoactive in the event of the drug being withdrawn, that enhances the symptoms that the drug was intended to treat. So basically, that is the way that GABA works. In simple terms it increases the flow of chloride electrolyte to the brain, and in so doing affects our mood. This effect is enhanced by prescription drugs such as Valium and Ativan, which are used by those that suffer the effects of a GABA deficiency. However, these drugs have side effects, not the least of which is dependency due to the GABA receptors becoming modified to suit the drug. There is a more natural way to overcome many stress problems and symptoms of mood swings. Knowing what causes these symptoms, it makes sense to eat foods that stimulate the creation of neurotransmitters to replace those that are deficient. Since GABA is produced in the Krebs Cycle and complex carbohydrates produce glutamine that is an important part of that Cycle, and is also the precursor to GABA, then the consumption of such foods should in theory produce more GABA. In this case the theory works, and you should eat foods rich in complex carbohydrates such as whole grains, brown rice and oats as part of your diet. Other foods that are high in glutamine or its precursors, glutamic acid and glutamate, include citrus fruits, beef liver, broccoli, halibut and lentils. A useful supplement to take is L-theanine, an amino acid found in green tea, and available in supplement form. L-theanine can calm your nerves while maintaining clarity of thought. In other words it calms you down, but doesn’t make you drowsy and allows you to enjoy your day with anxiety. Your doctor can determine whether or not you have a neurotransmitter deficiency through a simple urine test, and might also test your saliva for hormone content. A GABA supplement might be indicated, and if so it other beneficial effects on your body other than its effect on your brain cells. It improves your sleep cycles and promotes vivid dreaming, and can also have a positive effect on your blood pressure. It is also an effective pain killer, and can provide relief from such conditions as back pain and arthritis. Its stimulating effect on the anterior pituitary gland to secrete Human Growth Hormone might also be regarded as a benefit by many. Increasing the level of HGH in your blood can lead to fat loss and improved anabolic activity (increase in muscle tissue). This can be of benefit to older people whose level of HGH secretion has dropped off, and who find it more difficult to lose fat. GABA is a substance that has many known benefits and no known side effects other than a slight tingling and increase in heart rate when the supplement is first used. It has a definite benefit for people to whom the world seems too hectic and overwhelming.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1875) Omega-3 Relieves Depression in Some Individuals
Date:
November 02, 2007 03:27 PM
Omega-3 oils contain fatty acids that are known as essential fatty acids because they cannot be manufactured in your body but have to be taken in your diet. They provide many benefits to your body, and are also believed to relieve depression in some individuals. First, however, an overview of the more conventional benefits of omega-3 oils. Obtainable in your diet from oily fish such as mackerel, herring, salmon and the like, omega-3 fatty acids play an important part in your normal growth and development, and are also crucial to normal brain function. They can reduce inflammation and protect you from heart disease and some cancers. Studies have shown the fatty acids to be particularly concentrated in the brain and to be important for cognitive processes and memory. The effects of omega 3 fish oils on the brain are well documented, and they are known to be effective treatments in some cases of bipolar and schizophrenia. It is believed that they could also be used as a treatment in other disorders such as attention deficit disorder and dyslexia, but there is as yet no evidence that this is the case. Omega-3 fatty acids reduce the so-called ‘bad’ low density lipoprotein (LDL) cholesterol levels and increase the high density lipoproteins (HDL) that take the cholesterol back to the liver for destruction. The end result is a reduction in the cholesterol content of the blood that can be deposited on the artery walls and promote atherosclerosis. Diets high in omega-3 fatty acids appear to lower blood pressure in those suffering from hypertension, and so reduce their chances of heart attacks and strokes. Omega 3 oils are also natural inflammatories, and help prevent conditions involving inflammation such as arthritis, asthma and menstrual cramps. They appear to help the immune system to fight these conditions and reduce the inflammation and its causes. They are also important in the formation of prostaglandins that are responsible for the regulation of important functions such as blood pressure, blood clotting and immune response. They are hormone-like substances and also control the synthesis in the body of other hormones. If the balance of fatty acids in the diet is not right, then the subsequent imbalance in prostaglandin and hormone production can lead to disease. It is in its effect on depression and mood, however, that has surprised many in the medical, profession. Ethyl-eicosapentaenoate, known as ethyl EPA, is a constituent of omega-3 fish oil and many studies have demonstrated that this substance helps cases of depression and related disorders. However, are people justified in turning to ethyl EPA to help them be cured of this condition? In one study involving 20 people, six out of ten people given the supplement displayed significantly reduced symptoms of depression after four weeks. The effects were noticed as early as two weeks and many of the depression symptoms, such as worthlessness and insomnia, had improved after three weeks. This conformed with the results of many other studies that have been carried out world wide. In Scotland, a number of patients were studied who had failed to respond to traditional antidepressant drugs. Of the seventy patients involved in the trial, all of the patients who were treated with EPA displayed significant improvements in all the symptoms of their depression after four weeks whereas those with the placebo showed no improvement. Of the two main components of omega-3 fish oil, EPA and docosahexaenoic acid (DHA), only the EPA has this property, and the EPA works best alone when the DHA has been extracted. Studies and tests have indicated that the DHA appears to be important for the brain’s structure, but the EPA for its function, hence the reason for the ineffectiveness of the former in relieving depression which is a function of the brain rather connected to its structure. In fact, depressed people have been found to be deficient in EPA in comparison to those not suffering from the condition. The original idea for this originated with the late Dr. Horribin who was pioneer in researching the effects of lipids on the biochemistry of the brain as far back as the 1970s. Since then the world-wide research has confirmed his theory. However, the reason why this theory works in practice is not yet understood. It has been established that a diet rich in trans fats can unfavorably affect the hormones in the brain that stabilize mood, possibly due to the fats slowing down the system of messaging within the brain. This kind of effect can cause depression. This is likely due to the slowing down of the messages passing between the syNapses. Brain cells communicate by means of chemicals that cross the syNapses, or small gaps between the individual cells. They are not directly connected like normal electrical circuits. It has been theorized that the EPA speeds up the passage of these messages between neurotransmitters and neuroreceptors. Other theories have also been promoted, such as that the EPA has properties of its own that cure depression by another route altogether. A possible clue could be in the findings of one study on a man aged 21 years old whose brain was scanned before and after EPA treatment. The result showed in increase in the mass of brain cells after the treatment. This was contrary to the belief that brain cells could neither be generated nor grown once a person reaches maturity. An individual suffering depression who would like to treat themselves with EPA would have to buy a lot of oily fish since high doses are needed for this level of therapy. However, it is found in high concentrations in a few supplements available on the market, and when choosing you must use the highest grade of EPA you can get, with as low a DHA content as you can find. There is little doubt now; however, that the EPA content of omega-3 relieves depression in some individuals, although more work is needed to prove without doubt that it is effective with all forms of depression.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1613) Benefits of Acetyl-L-Carnitine
Date:
February 12, 2006 01:55 PM
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1216) Phosphatidyl Serine - HEALTHY COGNITION BRAIN FUNCTION
Date:
December 21, 2005 11:04 AM
“To the dull mind, nature is leaden. To the illumined mind, the whole world burns and sparkles with light.” Ralph Waldo Emerson From the moment we rise to the moment we rest, our brain is in a decision-making frenzy. When we’re thirsty, our brain tells us that we need water. When we’re hungry, it reminds us that we have a refrigerator full of food. When we’re tired, it lets us know that we need to sleep, and so on. But despite the thousands of decisions we make everyday, our brain still hasn’t figured out a way to let us know what it needs to func¬tion. Though ironic, this raises a very serious issue. The human brain, like every other organ in the body, demands nutrition - period. Unfortunately, it leaves that up to us to figure out. Thanks to notable advance¬ments in research, we’re finally learning which nutri¬ents are most important for optimal brain function. Phosphatidyl Serine (PS) is a perfect example. This naturally occurring phospholipid has been the subject of numerous studies regarding its ability to boost cognitive function and delay (or potentially reverse) memory deterioration, and suggests that PS may be able to increase the effectiveness of neural transmissions. Interestingly, PS accounts for roughly 15% of the brain’s phospholipid supply. This is enor¬mous because phospholipids play a significant role in the billions of neurotransmissions that take place every second. Yes, billions. Brain cells are constantly communicating with one another, and send astonishing amounts of impulses throughout the nervous system. This is accomplished via neurotransmitters - chemical messengers that send and receive impulses over the syNapses of the brain and throughout the body. Mentally, we’re function¬ing at our best when these cells are well nourished. We can think more clearly, recall memories with ease and operate with greater efficiency. However, a de¬ficiency in neural-nutrients can prevent these mind messengers from functioning as they should. For¬tunately, PS has the ability to cross the blood-brain barrier to deliver critical nutrients and remove mind-slowing waste. Consider this. The brain functions in the same man¬ner that a major airport does around the holidays. There are millions of actions taking place. Impulses departing, nutrients arriving, endless communication, the occasional problem and more reactions than any¬one could possibly count. There’s confusion, delay and emotion, not to mention the endless series of transmissions that take place every second. Imagine PS as that ultra-motivated employee who shows up to work everyday anxious to expedite everything in sight. It helps neural travelers get to and from their respec¬tive gates, ensures that they have everything they need, simplifies processes that could result in breakdown, and clears isles that are cluttered with junk. Simply stated, PS is the brain’s overachieving go-getter. PS can help us think more clearly. It’s 3:06 in the afternoon and you’re scrambling to get to a meeting that you’re already late for. That fluster could be the result of poor neurotransmission caused by a deficiency in essential nutrients like PS. Moreover, these innocent brain-bursts can exhaust our PS reserves, leaving us somewhere hovering be¬tween frantic and sluggish. Every impulse, thought, action, reaction, movement, emotion and desire is the end result of neurotransmitters in action. PS is a major supporter of these actions. Therefore, as we increase the amount of PS in our system, we gain the ability to think and act with greater ease. PS can reduce the adverse impacts of stress on our body and mind. What do we do when we’re down in the dumps? While plopping down on the sofa with a snack might be an easy solution, it comes with a price. Not only does stress interfere with mood, but it can also inspire inactivity, over-eating and sluggishness. This is due largely in part to cortisol - a catabolic hormone released by the adrenal glands in response to emotional stress. Studies done to determine the effectiveness of PS on cortisol suppression have shown that it works by suppressing the hormones that produce cortisol. As a result, supplementing with PS may be able to help reduce the amount of stress related hormones that ultimately leave us singing the blues. PS can expedite post workout recovery time. Endurance athletes who carefully monitor their body’s response levels are increasingly turning to PS. Immediately following strenuous activity, the body responds by releasing adrenocorticotropin (ACTH) – a hormone that discourages testosterone and encourages cortisol. By limiting ACTH pro¬duction, PS reduces the amount of muscle tissue breakdown that occurs during exercise. A common misconception is that muscles grow during exercise - wrong. In fact, muscles are torn down during ex¬ercise and grow in-between workouts – hence the term recovery. During recovery, PS helps prevent the activity of growth-inhibiting hormones. This helps athletes recover faster so their gains are realized more quickly. In short, Phosphatidyl Serine appears to be a completely safe and beneficial dietary supple¬ment that can offer a wide range of physical and mental health benefits. NOW® Phosphatidyl Serine is derived from soy leci¬thin, and includes Choline and Inositol – two metabolites that work synergistically to help in¬crease circulation and cognitive response.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=1057) Progesterone Cream - Supports Hormonal Balance
Date:
June 28, 2005 09:40 AM
Recent medical reports have profoundly shaken popular beliefs about the safety of Hormone Replacement Therapy (HRT) for women in menopause. You may be one of the six million women who are searching for alternatives. Source Naturals PROGESTERONE CREAM and PHYTO-ESTROGEN CREAM can help address normal menopausal discomforts, when used as part of a care for their own health needs. Source Naturals is committed to joining with your health food retailer to help insure that right. Menopause and Hormonal Balance Public confidence in hormone replacement therapy (HRT) suffered a major blow when the National Heart, Lung, and Blood Institute of the National Institutes of Health halted a large clinical trial out of concern for the safety of participants. Women are looking for natural alternatives to risky HRT. Source Naturals Progesterone CREAM and PHYTO-ESTROGEN CREAM address the hormonal fluctuations that bring on the first disturbing hot flashes, night sweats, and mood swings. Used together or separately, these creams address declining levels of progesterone and estrogen. Progesterone Cream from Woman-Friendly Soy Progesterone is a steroid hormone made by the corpus luteum of the ovary at ovulation, and in smaller amounts by the adrenal glands. It is a precursor to most other steroid hormones, including cortisol, androstenedione, estrogen and testosterone. Because it is the precursor to so many hormones, progesterone is crucial for overall hormone balance. Yet progesterone levels can drop to near zero during menopause. Source Naturals PROGESTERONE CREAM supplies natural progesterone from soy. Unlike creams which don’t divulge their progesterone content, Source Naturals PROGESTERONE CREAM is guaranteed to contain 500 mg of progesterone per ounce! This pure white cream softens and smoothes skin. Along with natural progesterone, it contains aloe vera, wild yam extract, natural vitamin E, lecithin phospholipid, jojoba oil, and extracts of ginseng root and grapefruit seed. Natural rosemary oil is added as a fragrance. Available in both tubes and jars for your convenience. Phyto-Estrogen Cream: Plant Compounds Renowned for Menopause Estrogen levels drop 40-60% at menopause. Phytoestrogens—estrogens from plants—have been shown to bind to the same receptor sites as estrogen, helping maintain normal menstrual cycles and menopausal transitions. When there is too little estrogen (the situation during menopause), phytoestrogens substitute for the lack of human estrogen. Conversely, when estrogen levels are high (as in some women who experience PMS), phytoestrogens compete with human estrogen for binding to receptors and decrease overall estrogenic activity. Source Naturals PHYTO-ESTROGEN CREAM is an almond-colored cream that can be massaged into smooth skin areas to add oil-rich, moisture-binding protection. PHYTO-ESTROGEN CREAM offers some of the finest phytoestrogens in the botanical world, including 60 mg of soy isoflavones per ounce. PHYTO-ESTROGEN CREAM also contains pomegranate seed juice (a natural source of estrone), red clover tops extract, black cohosh root extract, and dong quai root extract, along with aloe vera gel, natural vitamin E, cocoa butter, grapefruit seed extract, rosemary oil, and natural cherry almond fragrance. Warning: Phyto-Estrogen Cream is not for use by women of childbearing age. DO NOT USE if you are pregnant or breastfeeding, or if you may become pregnant. Liposome Delivery Source Naturals offers you the first progesterone and phytoestrogen creams to utilize unique liposomal delivery of key ingredients. Liposomes are micro-penetrating lipid spheres made from lecithin, which pass through skin layers more easily than non-liposomal creams—for highest possible penetration of skin cells. Both creams are available in 2 and 4 oz jars. PROGESTERONE CREAM is also available in 2 and 4 oz tubes. Lifestyle Tips for Menopause: A Strategy for Wellness Eat Well: In certain cultures, hot flashes are practically unknown. It is generally true that women in these cultures eat foods rich in phytoestrogens. For example, in Southeast Asia, where soy proteins comprise 20% to 60% of daily protein intake, epidemiological studies suggest an association between a positive, trouble-free menopause and soy consumption. Lignans—phytoestrogens found in flaxseed oil and unprocessed olive oil—may also have a protective effect. You should eat fresh, organic vegetables, fruits, cereals, beans, whole grains and small portions of fish or hormone-free chicken. Increase fluids and eat low-fat dairy foods. Avoid fatty meats, sugar, processed foods, fried foods, and chemicals. Adequate calcium intake— 1,500 mg per day—is crucial. Use Supplements: Source Naturals HOT FLASH is an excellent complement to PROGESTERONE and PHYTO-ESTROGEN CREAMS. A recent comprehensive scientific review of natural menopause products (Annals of Internal Medicine 11/19/02) singled out soy isoflavones and black cohosh for their benefits in addressing hot flashes. Unlike most products, HOT FLASH contains clinical potencies of both soy isoflavones and standardized black cohosh extract. In addition, HOT FLASH contains additional herbs, renowned for use in menopause: vitex, licorice root and dong quai. To be sure you are covering all your nutritional bases, take a good daily multiple like MENOPAUSE MULTIPLE, especially designed for women 40+ years old. Maintain a Healthy Weight: Women who are overweight have an increased risk of heart disease, while those who are thin or underweight are more susceptible to osteoporosis and hot flashes. Rest and Relax: It is important to get adequate sleep, take Naps if you feel tired, and avoid stress. Meditation and yoga can be helpful in reaching a state of calm. Take Care of Your Skin: A 1997 study of 3,875 postmenopausal women documented the relationship between low estrogen levels and skin dryness and loss of elasticity. Research has associated wrinkling with consumption of full-fat dairy products, butter, margarine, fatty meats and sugar. Drink lots of water—at least 1.5 liters daily. Water flushes out wastes, and acts as an internal moisturizer, keeping skin hydrated and supple. Spring water is beneficial since it contains trace minerals vital to healthy skin. For radiant skin, you should also try the Source Naturals SKIN ETERNAL™ family of creams and serums. This advanced cosmetic system recharges and revitalizes all skin types. Keep Cool. Avoid triggers such as spicy foods, caffeine, alcohol, overheated rooms, hot beverages and stress. Wear layered clothing, and choose natural fabrics, such as cotton or wool. Stay Active: Exercise benefits the heart and bones, helps regulate weight and contributes to overall well-being. Weight-bearing exercises are especially important for increasing bone mass. Kegel exercises (tightening and relaxing of the pelvic muscles) can improve bladder control, and may enhance sexual pleasure. Try Complementary and Alternative Medicine (CAM): Alternative therapies— herbal remedies, acupuncture, massage, chiropractic, naturopathic medicine and much more—can help you cope with the physical and emotional changes of menopause.
References
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=512) Anti-Aging Nutrients
Date:
June 18, 2005 09:07 AM
Anti-Aging Nutrients by Edward C. Wallace, DC, ND Energy Times, February 3, 2000 What's the big deal about trying to live longer? As you grow older (and the American population grows older alongside you) you may want to postpone the inevitable. Few wish to hasten "the journey from which no traveler returns." But as we approach that final bon voyage, chances are we desire clear sailing-aging without disability and with a peaceful, easy feeling. How Do We Age? Science has long puzzled about what causes the wrinkles, pains and deterioration of aging. In the search for causes, two basic theories have won over the most proponents: The first holds that cells are programmed with biological clocks that predetermine how many times they can reproduce before becoming non-functional. This theory has been largely formulated by the researcher Leonard Hayflick, MD. The second basic theory, introduced by Denham Harman, MD, PhD, in the mid 1950s, holds that cells eventually break down due to attack by caustic molecules called free radicals that cause oxidative stress. Programmed Cell Theory In the early '60s, Dr. Hayflick observed that human fibroblasts (cells from connective tissue) in the laboratory refused to divide more than about 50 times. Dr. Hayflick also found that even if he froze the fibroblasts after 20 divisions, they would remember that they only had 30 divisions left after thawing. Fifty cell divisions have been called the "Hayflick limit." Based on this research, scientists theorize that cells maintain a genetic clock that winds down as old age ensues. Many researchers believe the hypothalamus gland is the force behind our aging clocks, signaling the pituitary gland to release hormones that cause aging. Free Radical/Oxidative Stress Theory The other popular theory of aging pictures the human body as a cellular battlefield where attackers called free radicals damage our cells and tissues, making them age. In this scenario, a process called oxidation is the chief aging villain. On a microscopic level, oxidation generally entails molecules or atoms losing electrons. (Gaining electrons is called reduction.) The molecules or atoms that take these electrons are oxidizing agents. Free radicals are substances that can exist with missing electrons, making them readily able to donate or accept electrons and damage structures in cells. As such, they are highly reactive, binding with and destroying important cellular compounds. Most of the free radicals in your body are made during metabolic processes. More are added from the food you eat and environmental pollution. Most of these free radicals contain oxygen molecules. As each cell makes energy in little structures called mitochondria, free radicals result. These oxidant by-products can damage DNA, proteins and lipids (fats). Consequently, toxic by-products of lipid peroxidation may cause cancer, inhibit enzyme activity and produce mutations in genetic material that make you age faster. DNA Repair Theory Free radical damage to DNA can cause cells to mutate or die. Your body makes enzymes that can repair this damage and slow aging. But, over time, the amount of damage overwhelms the body's ability to fix things. As cells grow older, their ability to patch up DNA diminishes and the rate of damage proceeds faster than repair. The result: We age and eventually die. What Can We Do? The free radical theory of aging suggests that taking antioxidants (compounds known to prevent free radical damage) in our food or as supplements may slow aging. In the publication Age (18 [51] 1995: 62), it was reported that "aging appears to be caused by free radicals initiated by the mitochondria at an increasing rate with age. Superoxide and hydrogen peroxide radicals formed by the mitochondria during normal metabolism are major risk factors for disease and death after about the age of 28 in developed countries. Antioxidants from the diet lower the production of free radicals without impairing essential reactions to maintain body function." Antioxidant Protection Common dietary antioxidants include: vitamins E and C, carotenes, sulphur containing amino acids, co-enzyme Q10 and flavonoids (a group of plant compounds or pigments responsible for the color in fruits and flowers). In addition, melatonin, DHEA and the amino acid compound glutathione may also prove of benefit. Glutathione along with the enzyme glutathione peroxidase are an essential part of free radical "quenching." (Quenching means changing free radicals into benign substances no longer capable of harm.) Deficiencies may suggest a decreased capacity to maintain detoxification and metabolic reactions in which glutathione plays a role, resulting in increased free radical stress and/or lipid peroxidation. Drinking too many alcoholic beverages can result in glutathione deficiency. In a study in which 39 healthy men and 130 healthy women between the ages of 20 and 94 were evaluated for glutathione levels, the older subjects had significantly decreased levels (especially in the 60 to 79-year-old group). The authors felt that physical health and longevity were closely related to glutathione levels (Jrnl Lab & Clin Sci 120(5), Nov. 1992: 720-725). Poor nutrition and/or deficiencies in essential micronutrients and many prescription medications may contribute significantly to detoxification capacity in an aged individual. All of these circumstances are common in the elderly. Eating a poor diet that contains too many processed foods without many fruits and vegetables can compromise your body's ability to detoxify pollutants, toxins and other harmful compounds. That can set off metabolic processes capable of fomenting large increases in free radical stress that can accelerate aging. Unfortunately, even in a country as prosperous as our own, nutrient deficiencies are frequent, especially in older citizens. Nutrition Deficiencies A study that looked at what elderly people consumed compared their reported intake with the 1989 Recommended Dietary Amount (RDA) and 1980 RDA: One of four people consumed only two-thirds of the RDA for calories and 60% consumed less than two-thirds of the RDA for vitamin D. As for other nutrients, 50% were found to have inadequate zinc levels (less than two-thirds of the RDA), 31% lacked calcium, 27% were short of vitamin B6, 25% didn't get enough magnesium, 7% missed out on folate and 6% ate less than two-thirds of the requirement for vitamin C (Nutrition Reviews (II), September 1995: S9-S15). When researchers examine what everyone in the U.S. eats, they find that only 9% of Americans consume the recommended five servings of fruits and/or vegetables per day (Proceedings of the National Academy of Sciences, Sept 1993). A diet high in fruits and vegetables is naturally high in antioxidant compounds and is believed to help you live longer. Unfortunately, if you buy your produce in the supermarket, those fruits and vegetables may also be rich in pesticide and herbicide residues (Consumer Reports, March 1999). Obviously, organic produce lacks these residues. But, in any case, research continues to indicate that a diet low in meats and animal fat and high in vegetables protects against antioxidant damage. Longevity Diets A six-year study of 182 people over age 70 in rural Greek villages found that those following their traditional diet of olive oil, whole grain breads, fresh fruits and vegetables and wine were less likely to die during the study than those who consumed more red meat and saturated fat. The most important foods in lowering the risk of early death included fruits, vegetables, legumes (peas and beans), nuts, dairy products and cereals (BMJ 311, 1995: 1457-1460). Another article in Epidemiology highlights the evidence that eating a vegetarian diet increases your chances of living longer. Included in this survey is a recent country-wide study of diet and health in China, showing that the traditional near vegetarian diet of 10% to 15% of calories coming from dietary fat reduced the chances of heart disease, diabetes and many types of cancers (Epidemiology 3[5], 1992: 389-391). Staying Alive Staying skinny and limiting what you eat may also increase longevity. Scientific studies have previously shown that being overweight can theoretically curtail your life, increasing the risk of heart disease, diabetes and other life-shortening conditions. Animal studies have also shown that restricting food can slow diseases associated with aging. Researchers believe that cutting calories helps your immune system stay younger by reducing the formation of substances that are called proinflammatory cytokines. Specifically reducing your intake of fatty foods may decrease your chance of coming down with autoimmune diseases. Researchers think omega-6 fatty acid vegetable oils (like corn oil) may increase free radical formation and decrease levels of antioxidant enzyme messenger RNA in addition to other effects (Nutrition Reviews 53[4], 1995: S72-S79). Another study found that cutting calories lowers the levels of oxidative stress and damage, retards age-associated changes and extends maximum life span in mammals (Science 273, July 5, 1996: 59-63). In yet another study, it was shown that caloric restriction early in the life of lab animals increased their life span by a whopping 40% (Australian Family Physician 23[7], July 1994: 1297-1305). Today's modern higher-fat, low-fiber diet with substantial sugar consumption represents everything the longevity researchers say you shouldn't eat. Longevity and Exercise Exercise may slow aging. When researchers looked at the exercise habits of 17,000 men, average age of 46, they found that those who took part in vigorous activity lived longer. Exercise can improve both cardiac and metabolic functions within the body, while also decreasing heart disease risk. Even modest exercise has been shown to improve cholesterol and blood sugar levels (JAMA 273[15], April 19, 1995: 1179-1184). In a study of how exercise affects your chances of living longer, 9,773 men underwent preventive medicine examinations on two different occasions. When the researchers looked at who lived longest, they found the highest death rate was in men who were unfit during both physical exams. The Treadmill of Life The lowest death rate was in the men who worked out and were in good shape. The researchers concluded that for each minute increase in how long a man could keep treading on a treadmill (between the first and second exam) there was a corresponding 7.9% decrease in the risk of dying (JAMA 273 [14], April 12, 1995: 1093-1098). Since exercise can increase oxygen consumption up to 10 times, boosting the rate of production of free radicals, researchers believe that older individuals need more antioxidant nutrients to protect them. In a paper published in Aging Clinical and Experimental Research (1997), researchers stated that if you regularly exercise in your golden years, you should take more antioxidant vitamins to compensate for this risk. Longevity Supplementation Melatonin is not often thought of as an antioxidant, but, instead, as a sleep aid. Melatonin, however, is an effective and efficient free radical scavenger and may help stave off the effects of aging. Melatonin protects against what are called hydroxyl free radicals. Research shows that older people's lack of melatonin may make them more susceptible to oxidative stress. In one study, researchers felt that new therapies aimed at stimulating melatonin synthesis may eventually lead to therapies for the prevention of diseases related to premature aging (Aging and Clinical Experimental Research 7[5], 1995: 338-339). Melatonin was shown to provide antioxidant protection in several ways. Toning Down Enzymes Melatonin can ease the effects of enzymes that generate free radicals, enhance the production of glutathione peroxidase (an antioxidant) and defuse the caustic action of free radicals that contain hydroxyls. In several studies, DHEA supplementation has been shown to potentially revive immune function in older adults (Exp. Opin. Invest. Drugs 4[2], 1995: 147-154). In a study of 138 persons older than 85 years compared to 64 persons 20 to 40 years of age, scientists found that the younger people had four times as much DHEA in their bodies. The researchers believe that our bodies make less and less DHEA as we get older. The authors of this study raise the possibility that declining DHEA may be partly to blame for our biological clocks running down (New York Academy of Sciences 1994: 543-552). Vitamins E & C A growing body of research also supports the benefits of taking vitamins E and C to hold off the effects of getting old. Researchers writing in Free Radicals and Aging (1992: 411-418) point out that as you get older your body is home to more and more free radical reactions that may lead to degenerative diseases like heart disease and arthritis. Research has found that in older people with exercise-induced oxidative stress, taking vitamin E every day may significantly fight off free radicals. (To investigate this effect, scientists measured waste products in urine that result from free radical reactions.) Their conclusion: Dietary antioxidants such as vitamin E may be beneficial. Chronological Age Vs.Biological Age Vitamin C also looks to scientists like a good anti-aging bet. Research in the Journal of Advancement in Medicine, (7[1], Spring 1994: 31-41) showed that folks consuming larger amounts of vitamin C were less likely to experience clinical problems at all ages. Those taking in less than 100 mg of vitamin C per day also suffered the most problems. In this research, individuals over 50 years of age who daily consumed the largest amount of vitamin C were as healthy or healthier than the 40 year olds who were taking the least amount of vitamin C. Similar Relationship A similar relationship appears to exist for vitamin E and serum cholesterol levels. In a study of 360 physicians and their spouses, researchers found that people in their 50s who consumed more vitamin E had lower cholesterol than those in their 30s who were taking less. And the longevity beat goes on: In a study evaluating environmental tobacco smoke and oxidative stress, researchers divided 103 people into three groups. Researchers blew smoke at 37 of these folks without protection while 30 of them got to breathe tobacco smoke but took antioxidant supplementation. Another 36 of them merely had to read magazines from doctors' offices. The results: After 60 days of supplementation the antioxidant folks had a 62% reduction in evidence of oxidative damage to their DNA. Cholesterol levels dropped and so did antioxidant enzyme activities. The researchers concluded that taking antioxidants provided a modicum of protection against environmental poisons. The range of antioxidant nutrients used in this study included: beta-carotene, vitamin C, vitamin E, zinc and selenium as well as copper (Cancer Epidemiol Biomarkers Prev 7, November 1998: 981-988). Carotenoids When you mention carotene or carotenoids, most people think of the beta carotene that makes carrots orange. But more than 600 carotenoids are present in colorful vegetables and many of these misunderstood substances are more potent antioxidants than beta-carotene. Carotenoids have been shown to destroy oxygen free radicals in lipids (fats), help protect our cells from the sun's ultra violet radiation and enhance our natural immune response (J. Nutr 119[1], Jan. 1989: 112-115). Some evidence seems to show that how much carotenoids you (and other mammals) have in your cells may be the predominant factor in determining life span (Proc Natl Acad Sci 82 [4], 1985: 798-802). Therefore, a diet rich in carotenoids (leafy green vegetables, carrots, yams, sweet potatoes, squash, citrus fruits and tomatoes) along with supplementation seems to be just what the fountain of youth ordered. Flavonoids Flavonoids, a group of antioxidant plant pigments, seem to be able to protect specific organs. For instance, the flavonoids in milk thistle (Silybum marianum) have been used for ages for liver problems. Bilberry has been found protective for the eye and hawthorn for the heart and circulatory system. Numerous studies have shown the many beneficial effects of flavonoids with perhaps the best known being the ability of anthocyanidins in wine and grape seed extract to help protect your blood vessels and capillaries from oxidative damage (Phytotherapy 42, 1986: 11-14; Am J Clin Nutr 61, 1995: 549-54). Flavonoids are found in vegetables and such fruits as blackberries, blueberries, cherries and grapes. A diet rich in these foods helps ensure an adequate intake of these important nutrient compounds. Amino Acid Health Methionine and cysteine are sulphur containing amino acids (protein building blocks), both of which are essential in maintaining levels of glutathione, a substance that plays a major role in quelling free radicals. Studies have found that as we age, the level of these important amino acids in our bodies decreases. (NEJM 312 [1], 1985: 159-68). As it has been shown that adding cysteine to the diet of test animals can increase their life expectancy considerably, researchers believe these amino acids can help us live longer too. Attitude & Behavior Get more sleep! A recent study showed that men who habitually napped were less likely to have a heart attack. The men in this research who regularly napped for at least 30 minutes per day had about a 30% reduction in heart problems while those who napped for a full hour had a 50% reduction compared to non nappers. Naps of longer duration did not seem to increase the benefit. In the same research, investigators also found that spending time with a pet or merely contemplating nature could also improve cardiac health. Sensuality, optimism and altruism also appeared to have health benefits (Family Practice News, December 15, 1998: 14-15). In another study, this one in American Psychologist, researchers from the University of California found that people who are self-indulgent, pampered and achieve by running roughshod over the competition are less likely to outlive their healthy peers. Being egocentric, impulsive, undependable and tough-minded were predictors of poor physical health and a shorter life. So loosen up and be nice to your fellow humans! (U.C. Davis Magazine, Fall 1995: 14). Longevity at Last While no one has suggested that taking supplements, eating vegetables or exercising can, as of yet, extend the human life span past the generally recognized limit of about 120 years, researchers believe they can improve your odds of longer life. And by staying healthier, your old age will be more enjoyable, too.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=377) Fats: The Good, the Bad, the Ugly
Date:
June 14, 2005 11:18 AM
Fats: The Good, the Bad, the Ugly by Thomas Sherman Energy Times, October 15, 2004 We need fat to absorb vitamins, to keep our brains sharp, to survive. But not all fats are our friends. Find out which ones are the heroes and the villains in your diet. In a lot of cases health fads don't live up to their hype. But the case for consuming more good fats-the omega-3 fatty acids found primarily in fish, flax and hemp oils-is strong and growing stronger. As a nation we eat too little of these good fats, and our health would improve greatly if we relied a little less on the bad saturated fat in burgers, skipped the ugly trans fats in fries and indulged in more salmon and other seafoods. Fish and the Heart Need proof? A wealth of research supports fish oil's desirable effects, especially on heart health. While many people believe that heart disease is primarily a problem for men, women who have passed through menopause are just as susceptible to heart problems. " [Our] findings suggest that all women, and most likely men, would benefit from regular fish intake," says Alice H. Lichtenstein, DSc, director of the Cardiovascular Nutrition Laboratory at Tufts University in Boston. "A tuna fish sandwich counts, as does almost any other type of fish that is baked, broiled, grilled, or poached." But she points out that fried fish, which is often cooked in hydrogenated oils, is not helpful. In research on more than 200 women, performed at the Jean Mayer US Department of Agriculture Human Nutrition Research Center on Aging at Tufts, scientists found that the arterial blockages among women who dined on fish were less (and impeded blood flow less) than in women who hardly ever ate seafood. Fish was especially helpful for women who had diabetes, a disease that makes you more prone to heart and circulation problems (American Journal of Clinical Nutrition 9/04). These effects are important: Heart disease is the number one cause of death for women, and older women who suffer from diabetes are particularly susceptible. The number of people with diabetes has been increasing of late, mainly due to the fact that Americans are overweight. Right now about 18 million people have diabetes and another 20 million are expected to suffer this condition in the next four decades. " This study shows that following the current guidelines of eating at least two servings of any type of fish per week slows down the progression of heart disease in women with coronary artery disease (CAD), especially those who were also diabetic," says Dr. Lichtenstein, coauthor of the study. "We further found that eating one or more servings per week of fish that is rich in omega-3 fatty acids, such as tuna or other dark-fleshed fish, is equally effective." Dangerous disruptions in heartbeat, known as arrhythmias, may also be affected by fish oil. "[E]xperiments show that fatty acids from omega-3 fish oils are stored in the cell membranes of heart cells and can prevent sudden cardiac death or fatal arrhythmias," notes Alexander Leaf, MD, medical researcher and professor at Harvard University. Fat for Your Brain The right kind of fat is also crucial for the function of your nerves and brain tissue, which is 60% to 70% fat. Incorporating omega-3 fatty acids into those cells can help keep your brain firing on all syNapses. It may lower your risk of Alzheimer's disease, an irreversible form of mental deterioration that kills 100,000 Americans a year. About a thousand people a day in the US are found to have Alzheimer's, and experts believe that over the next 40 years 14 million of us will be doomed to being enveloped by the mental fog this condition produces. Research indicates that our brains probably need omega-3 fats for protection against the kind of damage that causes our mental capacities to slip. Once Alzheimer's starts, deterioration accelerates because brain cells start losing these fats. In experiments performed at the David Geffen School of Medicine at UCLA (Neuron 9/2/04), scientists looked at how a lack of docosahexaenoic acid (DHA, one of the omega-3 fats found in fish), affected the cellular processes that lead to Alzheimer's. They found that the part of brain cells that receive signals from other brain cells, the receptors, are vulnerable to damage from chemical reactions that take place inside the cells. However, DHA offers antioxidant protection against this destruction. When brain cells were denied DHA, the cells' receptors suffered extra harm. But when fish oil was present, brain cells were protected. In addition, animals that received extra omega-3s were better able to learn and find their way through mazes. Greg Cole, PhD, senior researcher on this study and a professor of neurology at Geffen, says, "We saw that a diet rich in DHA, or docosahexaenoic acid, dramatically reduces the impact of the Alzheimer's gene [which made the animals more susceptible to Alzheimer's]. Consuming more DHA is something the average person can easily control. Anyone can buy DHA in its purified form, fish-oil capsules, high-fat fish or DHA-supplemented eggs." Fishes rich in omega-3s include salmon, halibut, mackerel, sardines and herring. Protecting Kids from Asthma A surprising benefit of omega-3s has been found in pregnant women and their newborns: Pregnant women with asthma who eat fish rich in omega-3s during their pregnancy lower their children's risk of asthma. Not just any fish will do. The study (American Thoracic Society International Conference 5/25/04) discovered that mothers who ate fish sticks during pregnancy doubled the asthma risk in their kids. " Fish sticks are deep-fried, and they contain omega-6 fatty acids, which encourage inflammation of the airways," says study co-author Frank Gilliland, MD, PhD, professor at the Keck School of Medicine at the University of Southern California. "Oily fish [like salmon and trout] contain omega-3 fatty acids, which appear to be anti-inflammatory, and lead to the reduced potential for developing asthma and allergies." The USC investigation showed that when women with asthma ate oil-bearing fish during pregnancy, the risk of asthma for their children dropped more than 70%. The more fish that mom consumed, the less likely her baby was to develop asthma. Unfortunately, the study did not find the same benefit in women without asthma. " A family history of asthma is a very strong risk factor for a child developing asthma," Dr. Gilliland says. "It appears that oily fish interacts with the genes involved in the predisposition to develop asthma, and somehow reduces the risk." Although most of us try to avoid accumulating unsightly fat around our hips, the right kind of fat plays an integral part in the functioning of our bodies and may even keep us alive. Fats don't get much better than that.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=344) Nutrients for Longevity
Date:
June 10, 2005 09:59 PM
Nutrients for Longevity by Edward C. Wallace, ND, DC Energy Times, September 1, 1999 What's the big deal about trying to live longer? As you grow older (and the American population grows older alongside you) you may want to postpone the inevitable. Few wish to hasten "the journey from which no traveler returns." But as we approach that final bon voyage, chances are we desire clear sailing-aging without disability and with a peaceful easy feeling. How Do We Age Science has long puzzled about what causes the wrinkles, pains and deterioration of aging. In the search for causes, two basic theories have won over the most proponents: The first holds that cells are programmed with biological clocks that predetermine how many times they can reproduce before becoming non-functional. This theory has been largely formulated by the researcher Leonard Hayflick, MD. The second basic theory, introduced by Denham Harman, MD, PhD, in the mid 1950s, holds that cells eventually break down due to attack by caustic molecules called free radicals that cause oxidative stress. Programmed Cell Theory In the early '60s, Dr. Hayflick observed that human fibroblasts (cells from connective tissue) in the laboratory refused to divide more than about 50 times. Dr. Hayflick also found that even if he froze the fibroblasts after 20 divisions, they would remember that they only had 30 divisions left after thawing. Fifty cell divisions have been called the "Hayflick limit." Based on this research, scientists theorize that cells maintain a genetic clock that winds down as old age ensues. Many researchers believe the hypothalamus gland is the force behind our aging clocks, signaling the pituitary gland to release hormones that cause aging. Free Radical/Oxidative Stress Theory The other popular theory of aging pictures the human body as a cellular battlefield where attackers called free radicals damage our cells and tissues, making them age. In this scenario, a process called oxidation is the chief aging villain. On a microscopic level, oxidation generally entails molecules or atoms losing electrons. (Gaining electrons is called reduction.) The molecules or atoms that take these electrons are oxidizing agents. Free radicals are substances that can exist with missing electrons, making them readily able to donate or accept electrons and damage structures in cells. As such, they are highly reactive, binding with and destroying important cellular compounds. Most of the free radicals in your body are made during metabolic processes. More are added from the food you eat and environmental pollution. Most of these free radicals contain oxygen molecules. As each cell makes energy in little structures called mitochondria, free radicals result. These oxidant by-products can damage DNA, proteins and lipids (fats). Consequently, toxic by-products of lipid peroxidation may cause cancer, inhibit enzyme activity and produce mutations in genetic material that make you age faster. DNA Repair Theory Free radical damage to DNA can cause cells to mutate or die. Your body makes enzymes that can repair this damage and slow aging. But, over time, the amount of damage overwhelms the body's ability to fix things. As cells grow older, their ability to patch up DNA diminishes and the rate of damage proceeds faster than repair. The result: We age and eventually die. What Can We Do The free radical theory of aging suggests that taking antioxidants (compounds known to prevent free radical damage) in our food or as supplements may slow aging. In the publication Age (18 [51] 1995: 62), it was reported that "aging appears to be caused by free radicals initiated by the mitochondria at an increasing rate with age. Superoxide and hydrogen peroxide radicals formed by the mitochondria during normal metabolism are major risk factors for disease and death after about the age of 28 in developed countries. Antioxidants from the diet lower the production of free radicals without impairing essential reactions to maintain body function." Antioxidant Protection Common dietary antioxidants include: vitamins E and C, carotenes, sulphur containing amino acids, co-enzyme Q10 and flavonoids (a group of plant compounds or pigments responsible for the color in fruits and flowers). In addition, melatonin, DHEA and the amino acid compound glutathione may also prove of benefit. Glutathione along with the enzyme glutathione peroxidase are an essential part of free radical "quenching." (Quenching means changing free radicals into benign substances no longer capable of harm.) Deficiencies may suggest a decreased capacity to maintain detoxification and metabolic reactions in which glutathione plays a role, resulting in increased free radical stress and/or lipid peroxidation. Drinking too many alcoholic beverages can result in glutathione deficiency. In a study in which 39 healthy men and 130 healthy women between the ages of 20 and 94 were evaluated for glutathione levels, the older subjects had significantly decreased levels (especially in the 60 to 79-year-old group). The authors felt that physical health and longevity were closely related to glutathione levels (Jrnl Lab & Clin Sci 120(5), Nov. 1992: 720-725). Poor nutrition and/or deficiencies in essential micronutrients and many prescription medications may contribute significantly to detoxification capacity in an aged individual. All of these circumstances are common in the elderly. Eating a poor diet that contains too many processed foods without many fruits and vegetables can compromise your body's ability to detoxify pollutants, toxins and other harmful compounds. That can set off metabolic processes capable of fomenting large increases in free radical stress that can accelerate aging. Unfortunately, even in a country as prosperous as our own, nutrient deficiencies are frequent, especially in older citizens. Nutrition Deficiencies A study that looked at what elderly people consumed compared their reported intake with the 1989 Recommended Dietary Amount (RDA) and 1980 RDA: One of four people consumed only two-thirds of the RDA for calories and 60% consumed less than two-thirds of the RDA for vitamin D. As for other nutrients, 50% were found to have inadequate zinc levels (less than two-thirds of the RDA), 31% lacked calcium, 27% were short of vitamin B6, 25% didn't get enough magnesium, 7% missed out on folate and 6% ate less than two-thirds of the requirement for vitamin C (Nutrition Reviews (II), September 1995: S9-S15). When researchers examine what everyone in the U.S. eats, they find that only 9% of Americans consume the recommended five servings of fruits and/or vegetables per day (Proceedings of the National Academy of Sciences, Sept 1993). A diet high in fruits and vegetables is naturally high in antioxidant compounds and is believed to help you live longer. Unfortunately, if you buy your produce in the supermarket, those fruits and vegetables may also be rich in pesticide and herbicide residues (Consumer Reports, March 1999). Obviously, organic produce lacks these residues. But, in any case, research continues to indicate that a diet low in meats and animal fat and high in vegetables protects against antioxidant damage. Longevity Diets A six-year study of 182 people over age 70 in rural Greek villages found that those following their traditional diet of olive oil, whole grain breads, fresh fruits and vegetables and wine were less likely to die during the study than those who consumed more red meat and saturated fat. The most important foods in lowering the risk of early death included fruits, vegetables, legumes (peas and beans), nuts, dairy products and cereals (BMJ 311, 1995: 1457-1460) Another article in Epidemiology highlights the evidence that eating a vegetarian diet increases your chances of living longer. Included in this survey is a recent country-wide study of diet and health in China, showing that the traditional near vegetarian diet of 10% to 15% of calories coming from dietary fat reduced the chances of heart disease, diabetes and many types of cancers. (Epidemiology 3[5], 1992: 389-391). Staying Alive Staying skinny and limiting what you eat may also increase longevity. Scientific studies have previously shown that being overweight can theoretically curtail your life, increasing the risk of heart disease, diabetes and other life-shortening conditions. Animal studies have also shown that restricting food can slow diseases associated with aging. Researchers believe that cutting calories helps your immune system stay younger by reducing the formation of substances that are called proinflammatory cytokines. Specifically reducing your intake of fatty foods may decrease your chance of coming down with autoimmune diseases. Researchers think omega-6 fatty acid vegetable oils (like corn oil) may increase free radical formation and decrease levels of antioxidant enzyme messenger RNA in addition to other effects. (Nutrition Reviews 53[4], 1995: S72-S79). Another study found that cutting calories lowers the levels of oxidative stress and damage, retards age-associated changes and extends maximum life span in mammals (Science 273, July 5, 1996: 59-63). In yet another study, it was shown that caloric restriction early in the life of lab animals increased their life span by a whopping 40% (Australian Family Physician 23[7], July 1994: 1297-1305). Today's modern higher-fat, low-fiber diet with substantial sugar consumption represents everything the longevity researchers say you shouldn't eat. Longevity and Exercise: Exercise may slow aging. When researchers looked at the exercise habits of 17,000 men, average age of 46, they found that those who took part in vigorous activity lived longer. Exercise can improve both cardiac and metabolic functions within the body, while also decreasing heart disease risk. Even modest exercise has been shown to improve cholesterol and blood sugar levels (JAMA 273[15], April 19, 1995: 1179-1184). In a study of how exercise affects your chances of living longer, 9,773 men underwent preventive medicine examinations on two different occasions. When the researchers looked at who lived longest, they found the highest death rate was in men who were unfit during both physical exams. The Treadmill of Life The lowest death rate was in the men who worked out and were in good shape. The researchers concluded that for each minute increase in how long a man could keep treading on a treadmill (between the first and second exam) there was a corresponding 7.9% decrease in the risk of dying. (JAMA 273 [14], April 12, 1995: 1093-1098). Since exercise can increase oxygen consumption up to 10 times, boosting the rate of production of free radicals, researchers believe that older individuals need more antioxidant nutrients to protect them. In a paper published in Aging Clinical and Experimental Research (1997), researchers stated that if you regularly exercise in your golden years, you should take more antioxidant vitamins to compensate for this risk. Longevity Supplementation Melatonin is not often thought of as an antioxidant, but, instead, as a sleep aid. Melatonin, however, is an effective and efficient free radical scavenger and may help stave off the effects of aging. Melatonin protects against what are called hydroxyl free radicals. Research shows that older people's lack of melatonin may make them more susceptible to oxidative stress. In one study, researchers felt that new therapies aimed at stimulating melatonin synthesis may eventually lead to therapies for the prevention of diseases related to premature aging (Aging and Clinical Experimental Research 7[5], 1995: 338-339). Melatonin was shown to provide antioxidant protection in several ways. Toning Down Enzymes Melatonin can ease the effects of enzymes that generate free radicals, enhance the production of glutathione peroxidase (an antioxidant) and defuse the caustic action of free radicals that contain hydroxyls. In several studies, DHEA supplementation has been shown to potentially revive immune function in older adults (Exp. Opin. Invest. Drugs 4[2], 1995: 147-154). In a study of 138 persons older than 85 years compared to 64 persons 20 to 40 years of age, scientists found that the younger people had four times as much DHEA in their bodies. The researchers believe that our bodies make less and less DHEA as we get older. The authors of this study raise the possibility that declining DHEA may be partly to blame for our biological clocks running down (New York Academy of Sciences 1994: 543-552). Vitamins E & C A growing body of research also supports the benefits of taking vitamins E and C to hold off the effects of getting old. Researchers writing in Free Radicals and Aging (1992: 411-418) point out that as you get older your body is home to more and more free radical reactions that may lead to degenerative diseases like heart disease and arthritis. Research has found that in older people with exercise-induced oxidative stress, taking vitamin E every day may significantly fight off free radicals. (To investigate this effect, scientists measured waste products in urine that result from free radical reactions.) Their conclusion: Dietary antioxidants such as vitamin E may be beneficial. Chronological Age Vs. Biological Age Vitamin C also looks to scientists like a good anti-aging bet. Research in the Journal of Advancement in Medicine, (7[1], Spring 1994: 31-41) showed that folks consuming larger amounts of vitamin C were less likely to experience clinical problems at all ages. Those taking in less than 100 mg of vitamin C per day also suffered the most problems. In this research, individuals over 50 years of age who daily consumed the largest amount of vitamin C were as healthy or healthier than the 40 year olds who were taking the least amount of vitamin C. Similar Relationship A similar relationship appears to exist for vitamin E and serum cholesterol levels. In a study of 360 physicians and their spouses, researchers found that people in their 50s who consumed more vitamin E had lower cholesterol than those in their 30s who were taking less. And the longevity beat goes on: In a study evaluating environmental tobacco smoke and oxidative stress, researchers divided 103 people into three groups. Researchers blew smoke at 37 of these folks without protection while 30 of them got to breathe tobacco smoke but took antioxidant supplementation. Another 36 of them merely had to read magazines from doctors' offices. The results: After 60 days of supplementation the antioxidant folks had a 62% reduction in evidence of oxidative damage to their DNA. Cholesterol levels dropped and so did antioxidant enzyme activities. The researchers concluded that taking antioxidants provided a modicum of protection against environmental poisons. The range of antioxidant nutrients used in this study included: beta-carotene, vitamin C, vitamin E, zinc and selenium as well as copper (Cancer Epidemiol Biomarkers Prev 7, November 1998: 981-988). Carotenoids When you mention carotene or carotenoids, most people think of the beta carotene that makes carrots orange. But more than 600 carotenoids are present in colorful vegetables and many of these misunderstood substances are more potent antioxidants than beta-carotene. Carotenoids have been shown to destroy oxygen free radicals in lipids (fats), help protect our cells from the sun's ultra violet radiation and enhance our natural immune response (J. Nutr 119(1), Jan. 1989: 112-115). Some evidence seems to show that how much carotenoids you (and other mammals) have in your cells may be the predominant factor in determining life span (Proc Natl Acad Sci 82 [4], 1985: 798-802). Therefore, a diet rich in carotenoids (leafy green vegetables, carrots, yams, sweet potatoes, squash, citrus fruits and tomatoes) along with supplementation seems to be just what the fountain of youth ordered. Flavonoids Flavonoids, a group of antioxidant plant pigments, seem to be able to protect specific organs. For instance, the flavonoids in milk thistle (Silybum marianum) have been used for ages for liver problems. Bilberry has been found protective for the eye and hawthorn for the heart and circulatory system. Numerous studies have shown the many beneficial effects of flavonoids with perhaps the best known being the ability of anthocyanidins in wine and grape seed extract to help protect your blood vessels and capillaries from oxidative damage (Phytotherapy 42, 1986: 11-14; Am J Clin Nutr 61, 1995: 549-54). Flavonoids are found in vegetables and such fruits as blackberries, blueberries, cherries and grapes. A diet rich in these foods helps ensure an adequate intake of these important nutrient compounds. Amino Acid Health Methionine and cysteine are sulphur containing amino acids (protein building blocks), both of which are essential in maintaining levels of glutathione, a substance that plays a major role in quelling free radicals. Studies have found that as we age, the level of these important amino acids in our bodies decreases. (NEJM 312 [1], 1985: 159-68). As it has been shown that adding cysteine to the diet of test animals can increase their life expectancy considerably, researchers believe these amino acids can help us live longer too. Attitude & Behavior Get more sleep! A recent study showed that men who habitually napped were less likely to have a heart attack. The men in this research who regularly napped for at least 30 minutes per day had about a 30% reduction in heart problems while those who napped for a full hour had a 50% reduction compared to non nappers. Naps of longer duration did not seem to increase the benefit. In the same research, investigators also found that spending time with a pet or merely contemplating nature could also improve cardiac health. Sensuality, optimism and altruism also appeared to have health benefits (Family Practice News, December 15, 1998: 14-15). In another study, this one in American Psychologist, researchers from the University of California found that people who are self-indulgent, pampered and achieve by running roughshod over the competition are less likely to outlive their healthy peers. Being egocentric, impulsive, undependable and tough-minded were predictors of poor physical health and a shorter life. So loosen up and be nice to your fellow humans! (U.C. Davis Magazine, Fall 1995: 14). Longevity at Last While no one has suggested that taking supplements, eating vegetables or exercising can, as of yet, extend the human life span past the generally recognized limit of about 120 years, researchers believe they can improve your odds of living longer. An added benefit: By staying healthier, your old age won't only be longer, it will be more enjoyable, too. And, who knows, if you hang around long enough, taking your nutrients and getting a comfortable amount of consistent exercise, while meditating and refusing to succumb to stress, that magic bullet that will keep you alive for centuries may be discovered. Some day a new antioxidant or other substance may finally prove to provide the elusive fountain of youth. Stay tuned.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=283) Breast Cancer
Date:
June 10, 2005 09:44 PM
Breast Cancer by Joseph L. Mayo,MD Mary Ann Mayo, MA Energy Times, May 2, 1999 What do you fear most? Bankruptcy? Floods? Heart disease? If you're like many women, breast cancer stands near the top of that dreaded list. But that fear doesn't permeate other cultures the way it does ours. A woman like Mariko Mori, for instance, 52 years old, Japanese, worries about intense pressures beginning to burden her toddler grandson. But worry about breast cancer? Hardly. In Indiana, Mary Lou Marks, 50, has similar family frets, mulling over her 28-year-old daughter's career choice. But on top of that, when Mary Lou tabulates her other worries, she recoils at the thought of breast cancer. She's heard about her lifetime risk: 1 in 8. Meanwhile, Mariko's is merely 1 in 40, according to Bob Arnot's Breast Cancer Prevention Diet (Little, Brown).
American Problem New studies have found the effect of carrying the gene linked to breast cancer, which is responsible for only 5 to 10% of breast cancer incidence, is not as great as first suspected. Earlier estimates that the gene reflects an 80% chance of incurring breast cancer by age 70 has been recalculated to be only 37% (The Lancet, 1998;352:1337-1339). Complex Causesbr> Researchers agree: No one factor is solely responsible for breast cancer. Risk depends on many factors, including diet, weight, smoking, alcohol consumption, activity level and, of course, those genes. Regardless of their actual chance of getting breast cancer, women worry. Mary Lou faces no factors that would place her in particular jeopardy. But her anxieties about radical therapies and medical expenses paralyze her: She forgets to visit her health care provider and skips her annual mammogram appointments. Mary Lou's daughter, perhaps in reaction to her mother's gripping fears, campaigns ardently for cancer prevention, educating herself and mobilizing against the cumulative effects of known cancer risks. Smart young woman: A malignancy, after all, can take years to develop. A tumor must swell to one billion cells before it is detectable by a mammogram.
Dietary Benefits The soy-rich regimen of Japanese women like Mariko Mori, for example, helps to explain the low breast cancer rates in Asian countries (see box at center of the page). Tomatoes, because of their high quotient of the carotenoid lycopene, have been found to protect cells from the corrosive clutches of oxidants that have been linked with cancer in 57 out of 72 studies (The Santa Rosa Press Democrat, February 17, 1999, page A6, reporting on a Harvard Medical School study). For more on tomatoes see page 16. But there's no one magic anti-cancer food or diet. Eating to prevent breast cancer requires a balanced menu with fiber, healthy fats, phytoestrogens and antioxidants, all fresh and free of chemical additives. Modifying the balance and type of estrogen, the female sex hormone produced by the ovaries, offers an important breast cancer safeguard. Fat cells, adrenal glands and, before menopause, the ovaries, produce three "flavors" of estrogen, the strongest of which, estradiol, is believed to be carcinogenic when too plentiful or persistent in the body. Estrogen does its work by attaching to estrogen receptors. Receptors are particularly numerous in the epithelial cells that line milk sacs and ducts in the breasts. A receptor site is like a designated parking spot: Once estrogen is parked there it triggers one of its 400 functions in the body, from preparation of the uterus for pregnancy to intensifying nerve syNapses in the brain. The food we eat can be a source of estrogen; plant estrogens, called phytoestrogens, are much weaker than the body's estrogens, but they fit the same receptors. Phytoestrogens exert a milder estrogenic effect than bodily estrogen and are capable of blocking the more potent, damaging versions.
Finding Phytoestrogens Soy also contains genistein, an "isoflavone" very similar in molecular form to estrogen but only 1/100,000 as potent. Because of its structure, genistein can attach to cells just as estrogen does; it also helps build carriers needed for binding estrogen and removing it from the body (Journal of Nutrition 125, no.3 [1995]:757S-770S). It acts as an antioxidant to counteract free radicals.
Tumor Inhibition Soy is most protective for younger women. Postmenopausal women benefit from soy's ability to diminish hot flashes and for cardiovascular protection, especially in combination with vitamin E, fiber and carotene (Contemporary OB/GYN, September 1998, p57-58). Experts don't know that much about the cumulative effect of combining hormone replacement with soy, herbs and a diet high in phytoestrogens. Menopausal women who boost their estrogen this way should work with their health care providers and monitor their hormonal levels every six to 12 months with salivary testing.
The Vegetable Cart Fiber from fruits, vegetables and whole grains reduces insulin levels and suppresses the appetite by making make us feel full, thus helping with weight control, so important to resisting cancer. Fiber also helps build estrogen carriers that keep unbound estrogen from being recirculated and reattached to the breast receptors. Cellulose, the fruit and vegetable fiber most binding with estrogen, also rounds up free radicals that damage DNA within cells.,p> Feeding the Immune System Despite heightened public awareness and efforts to stick to wholesome, healthful diets, experts increasingly link poor nutrition to depressed immune systems. Many Americans are at least marginally deficient in trace elements and vitamins despite their best attempts to eat well; that's why a good multivitamin/mineral is wise, even mandatory. Vitamins given to people undergoing cancer treatment stimulate greater response, fewer side effects, and increased survival (International Journal of Integrative Medicine, vol. 1, no. 1, January/February 1999). Nutrients tend to work synergistically on the immune system. They should be taken in balanced proportions, and in consultation with your health care provider.
Immune Boosters n Riboflavin (B2), pyridoxine (B6), pantothenic acid (B5), zinc and folate strengthen immunity. Selenium, in lab culture and animal studies, has helped kill tumors and protect normal tissues. n Beta-carotene and vitamins A, E and C are antioxidants. Vitamin C enhances vitamin E's effects, boosting immunity and protecting against cell damage. The antioxidant isoflavones in green tea, with soy, convey the anticancer effects of the Asian diet. Research shows actions that discourage tumors and gene mutations. The food you eat influences hormones. Excess sugar raises insulin, which acts as a growth factor for cancer and interferes with vitamin C's stimulation of white blood cells. It may contribute to obesity. Alcohol is converted to acetaldehyde, which causes cancer in laboratory animals. It affects gene regulation by decreasing the body's ability to use folic acid. It increases estrogen and the amount of free estradiol in the blood. The liver damage that accompanies high alcohol consumption frequently reduces its capacity to filter carcinogenic products, regulate hormones and break down estrogen. Studies of alcohol consumption have caused experts to estimate that drinking more than two alcoholic beverages a day increases breast cancer risk by 63% (OB-GYN News, November 1, 1998, p. 12).
Fat Can be Phat Fat cells produce estrogen. Excess fat stores carcinogens and limits carriers that can move estrogen out of your system. Once estrogen has attached itself to a receptor, the health result depends on the type of fat in the breast. Saturated fat, transfatty acids and omega-6 fat from polyunsaturated vegetable oils such as safflower oil, peanut, soybean oil, corn oil and in margarine can increase the estrogen effect and trigger a powerful signal to the breast cell to replicate.
Restraining Prostaglandins Breast tissue is protected by omega-3 fat chiefly from fish and flaxseed and by omega-9 from olive oil. Salmon once a week or water packed tuna three times a week are particularly beneficial. Fish oil supplements processed to reduce contaminates are available. Cod liver oil isn't recommended: its vitamin A and D levels are too high. Flaxseed is the richest known plant source of omega-3. Use a coffee grinder to benefit from the seed and oil for the full estrogen effect; sprinkle ground flaxseed over cereal or fold into baked goods. Drizzle flaxseed oil, found in the refrigerator section of your health food store, over salads or cereal. (Store the oil in the refrigerator.) Olive oil, especially in the context of the so-called Mediterranean diet of vegetables, omega-3-rich fish and fresh fruit (Menopause Management, January-February 1999, p. 16-19), lowers the risk of breast cancer (The Lancet, May 18, 1996;347:1351-1356).
Selecting Organic Food Buy or grow fresh, organic foods whenever you can. When grilling meat, fish or poultry, reduce the area where carcinogens may accumulate by trimming fat. Charred, well-done meat is known to be carcinogenic. When grilling, marinate meat first and reduce the cooking time on the grill by slightly precooking. Cancer prevention is an interlocking puzzle requiring the limitation of fat consumption, weight control, exercise, stress reduction and care for psychological and spiritual balance. Possessing more cancer fighting pieces makes you more likely to be able to complete the prevention picture. Joseph L. Mayo, MD, FACOG and Mary Ann Mayo, MA, are the authors of The Menopause manager: A Safe Path for a Natural Change, an individualized program for managing menopause. The book's advice, in easy-to-understand portions, isolates in-depth explanations with unbiased reviews of conventional and alternative choices. A unique perspective for mid-life women who want to know all their options. Also from the Mayos - The HOW Health Opportunities For Women quarterly newsletter to help women learn HOW to make informed health choices. Learn HOW to: - Choose nutritional supplements
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=281) Improove Memory ...
Date:
June 09, 2005 05:49 PM
Mesmerizing Memory by Cal Orey Energy Times, January 1, 1999 In the 60s, the same rock 'n' rollers who belted out "One pill makes you larger and one pill makes you small," often espoused the belief that certain pills could expand the mind. While counter-culture pill purveyors were pilloried for their pill-popping claims, 90s nutritional research has uncovered a stash of supplements that may amplify mental improvement. Like a blues singer bending a high note, researchers are now humming with dramatic assertions that certain nutritional supplements can sustain and enhance concentration and memory function. For instance, studies reveal possible benefits for cognitive powers from vitamin C, magnesium and Ginkgo biloba. A recent report in the Journal of the American Medical Association (JAMA 278:1327-1332) said that an extract of Ginkgo biloba "can stabilize and, in some cases, improve the cognitive function and social behavior of demented patients." A researcher in the Proceedings of the National Academy of Sciences noted that a daily dose of vitamin E may "help protect the brain and its memories from the ravages of time." And the beat goes on: other evidence indicates that zinc, iron and boron may pump up short-term memory attention span and cut the time it takes to perform mental tasks.
Neuronutrients Lester Packer, PhD, professor of molecular and cell biology at UC Berkeley, told a joint 1996 United Nations-World Health Organization conference on Aging that "there is a growing body of evidence indicating that the free radical theory of aging and aging-related disease is valid," and that dietary and supplemental antioxidants can help fight illness and mental deterioration. Vitamin E and other memory aids are believed to protect brain chemicals called neurotransmitters, "the ferrymen of the brain's communication system," that influence concentration and memory. Experts say that sustaining the level of these nerve chemicals in the brain can potentially improve all mental processes.
Brain Well-Being Too much alcohol, for example, commonly causes progressive mental decline, according to Secrets of the Superyoung (Villard) by David Weeks and Jamie James. The authors also point out that "the memory tends to worsen noticeably after 15 years of alcohol drinking, and much sooner in people who go on massive binges." "The effects of cigarette smoke are subtler because the poisonous effects of carbon monoxide in each puff are temporarily offset by the alerting effects of the nicotine," they add. Can't remember the name of that singer cavorting in a music video? Tests have shown that smokers are worse at connecting peoples' names to their faces than nonsmokers.
Cognition Ignition n Learn something new: A second language, musical instrument, or unique puzzles and games keep neurons working like new. n Turn off the TV: Read. Studies show that passively watching TV requires less concentration than eating cereal. Mental rejuvenation also requires physical activity. Exercise increases oxygen flow to the brain, which supports memory, concentration and cognition. One study has shown that exercise significantly brightened the moods of middle-aged and older women, regardless of whether they were pre- or post-menopausal, with or without hormone replacement therapy.
Supplemental Brain Help Antioxidants, including the previously mentioned vitamin E (You haven't forgotten vitamin E already, have you?), provide crucial help for vigorous cerebral function. The free radicals created by tobacco smoke, air pollution, ultraviolet light and certain carcinogenic chemicals deconstruct cell membranes and may foster microscopic brain cell havoc. Antioxidant enzymes convert free radicals to more neutral, benign substances and nutritional antioxidants can neutralize free radicals by linking up with them. Vitamin C, a brainy antioxidant all star, performs so well that, according to Dr. Khalsa, its levels in the brain are almost 15 times higher than in other parts of the body. This nutrient, he asserts, aids mental and physical longevity. In a UCLA study, people who ingested at least 300 mg of vitamin C daily lived more than six years longer than those who ingested less.
Mental Fat Added to this mix, magnesium also scavenges free-radicals, according to Dr. Khalsa. Plus, experts recommend grape seed extract (phytochemicals that protect a wide range of cellular structures) to safeguard nerve cells and mental capacity.
B Vitamins for the Mind
Iron Mind Boron plays a crucial part in mental function. Scientists at the USDA's Human Nutrition Research Center have linked boron deficiencies to chronic lethargy and fatigue. In brain studies, they found that the electrical activity of the gray matter in the boron deficient indicated increased drowsiness and mental sluggishness.
Huperzine Boost HupA basically protects the brain from free radical damage (due to low levels of antioxidant defenses) and maintains or enhances crucial neurotransmitter action. More specifically, HupA helps reduce the breakdown of acetylcholine, the vital neurotransmitter, and makes this substance more bioavailable. In addition, HupA helps make choline accessible to the brain for the synthesis of acetylcholine, according to a study in Neuropharmacology (30, 1991: 763-768). Normally, the brain manufactures sufficient levels of the chemical phosphatidylserine, a lecithin-derivative that helps boost neurotransmitter release, but deficiencies of vitamin B12 and folic acid, or of essential fatty acids, may retard that production. Low levels of phosphatidylserine in the brain are related to impaired mental function and depression in the elderly. Scientists reporting in Aging (5, 1993; 123-33) describe "good results" using phosphatidylserine in the treatment of age-related cognitive ills.
Ginkgo Brain Power Another ingredient in what seems like an alphabet-soup of brain nourishment is DHA (docosahexaenoic acid), an omega-3 fat essential for normal brain function. Researchers met recently at The New York Hospital-Cornell Medical Center's Nutrition Information Center to discuss "Keeping Your Brain in Shape: New Insights into DHA." Their findings revealed links between low levels of DHA and Alzheimer's, depression, memory loss, attention-deficit/hyperactivity disorder (ADHD) and certain behavioral traits including aggression and hostility.
Mostly Fat Researchers from the National Institutes of Health point out, however, that fish is an excellent dietary source of DHA. In their studies, they discovered that depression rates in Japan and Taiwan, where fish ranks a top spot on the menu, are significantly lower than in North America and Europe. DHA also is crucial to the neurological development of children, according to findings published in Pediatrics (vol. 101, no. 1, January 1998). Researchers suggest that DHA-rich breast milk should be the model for infant formulas that enhance babies' neurological development. Scientists also have correlated some behavioral problems in children-ADHD, for example-to DHA deficiencies. If you are a vegetarian, or have other cause for concern about a potential lack of DHA in your diet, you can rely on dietary supplementation of DHA. Bruce J. Holub, PhD, of the University of Guelph in Canada provided vegetarians in his research project with DHA supplements over a 42-day period and substantially increased their DHA blood levels. The bottom line to enhanced mental performance is to take a balanced approach, says Robert Snider, MD, who specializes in preventive medicine in Massena, New York. "Maintaining brain power includes exercise, stress reduction and good nutrition." The message to keep in mind: Don't lose your nutritional balance or you could lose a piece of your peace of mind. Recommended Reading: & Brain Builders (Reward Books, 1995), by Richard Leviton. Brain Longevity (Warner Books, 1997), by Dharma Singh Khalsa, MD. Omega 3 Oils to Improve Mental Health, Fight Degenerative Diseases and Extend Life (Avery, 1996), by Donald Rudin, MD, and Clara Felix. Successful Aging (Pantheon, 1998), by John W. Rowe, MD, and Robert L. Kahn, PhD.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=261) AMINO ACIDS AND PROTEIN
Date:
June 09, 2005 09:48 AM
AMINO ACIDS AND PROTEIN
Next to water, protein is the most abundant substance in the human body. Complex mega-molecules of protein are the structural building blocks of tissue. The thousands of different proteins in our bodies are composed of 20 molecules called amino acids. In the last 20 years, research has shown the benefits of amino acid supplementation to such diverse areas of human biochemistry as metabolism, enzyme and neurotransmitter production and antioxidant protection. Source Naturals utilizes the latest-breaking research to bring you a highly comprehensive line of amino acid supplements.
Amino Acids DNA provides the instruction manual for life, RNA reads the manual and the genetic information is expressed by proteins. Proteins are the most abundant macromolecules in living cells constituting 50% or more of their dry weight. They create the structure of our cells and tissues, and play an essential role in virtually all of the biochemical events that animate those tissues. The term "protein" refers to a set of macromolecules that encompasses an extensive variety of structure and function&endash;from helical rods with the tensile strength of steel to elastic sheets to huge molecular machines with hinged jaws that snap closed to hold other molecules in place. Amazingly, all proteins, in their remarkable variety, are built out of a set of 20 simple molecules called amino acids. Amino acids are one of the four types of small molecules out of which all life is constructed. The other three are: palmitic acid (see "Essential Fatty Acids," page #), adenine and glucose. All amino acids share a common chemical "backbone" which consists of an a -carbon atom to which four substituent groups are bonded: a nitrogen-containing amino group (H2N), a carboxyl group (COOH), a hydrogen atom and an "R" group. The "R" group or side chain (figure #) varies in electric charge, size, structure and solubility in water, giving each amino acid its distinct chemical properties. Since all amino acids (except glycine) contain at least one asymmetrical carbon atom, each one exists in at least two forms: the l form and its mirror image or stereoisomer, the d form. While both forms are found in biological systems, only the l form is present in proteins. Amino acids are linked together like beads on a string to form proteins, sometimes called peptides because of the peptide bonds that link the amino acids together. They range in size from simple two-amino-acid dipeptides to polypeptides which contain more than 1800 connected amino acids. The chemical backbone of the amino acids and their sequence constitutes the primary structure of a protein. Polypeptide chains then fold into specific 2 and 3-dimensional configurations that are unique for each type of protein. The pattern of folds, along with the chemical nature of the amino acid side chains contained in it, give a protein its characteristic biological activity. For example, the connective tissue proteins collagen and elastin give structure to cellular organelles and tissues, while proteins called enzymes catalyze and facilitate metabolic chemical reactions. Nine of the 20 amino acids involved in protein synthesis are considered "essential";they cannot be synthesized by the body and must be obtained from food sources. The term "non-essential" is sometimes used to classify the other eleven amino acids. However, this word is perhaps a misnomer; a better term might be synthesizable. These amino acids are just as vital to human metabolism as the "essential" amino acids; so vital that the body can synthesize them. They are, however, more available, more versatile, and more interchangeable. When the presence or absence of a particular amino acid will determine whether a protein can be created or not, that amino acid is called a rate-limiting factor for that protein. For example, the tripeptide glutathione, a compound that forms an important part of the body's protective mechanisms, is made of the amino acids glutamic acid, glycine and cysteine. Glutamic acid and glycine tend to be plentiful in the diet, and can be easily interconverted. Cysteine is the rate-limiting factor for glutathione; the amount of cysteine in the diet will determine the amount of glutathione that can be manufactured by the body. Amino acids have a special role to play in brain nutrition, because all neurotransmitters are derived from amino acids or related compounds such as choline. Brain neurotransmitters, specifically, are biochemical keys to the workings of the mind. They are substances that perform chemical transmission of nerve impulses between neurons or between neurons and other cell types such as muscle. They work in the following way: an electric current (or action potential) travels down the length of a neuron, or nerve cell, until it reaches the syNapse - a narrow gap between two cells. The incoming nerve impulse triggers the release of neurotransmitter (NT) molecules, which diffuse across the synaptic gap. The neurotransmitter molecules bind with receptor proteins embedded in the membrane of the post synaptic neuron and activate a physiological response. Excitatory neurotransmitters propagate a new action potential while inhibitory NT's inhibit the development of new action potentials. The amino acid precursors of neurotransmitters are able to cross the blood-brain barrier, a structural feature of brain anatomy that prevents many substances from contacting brain tissue. Thus, it is possible to influence brain metabolism (and therefore emotional states) through the mechanism of neurotransmitter synthesis. The enhancement of neurotransmitter production is one of the most exciting advancements to occur in the field of nutrition in modern times. A major portion of the amino acid requirement in humans is derived from the proteins in food. Successive proteolytic enzymes attack the peptide bonds, cleaving one amino acid at a time from the polypeptide chain. Ultimately, free amino acids as well as small peptides (especially dipeptides) are absorbed through the mucosal cells of the small intestine. The small peptides are then further hydrolyzed so that only free amino acids enter the liver and portal vein. This sounds like a fairly straightforward process. However, the presence of a particular amino acid profile in a certain food does not guarantee the assimilation of those amino acids when the food is ingested. There are three types of amino acids: acidic, basic and neutral; each of these classes has a different transport mediator. Therefore, there is competition for the carrier between any two amino acids in a certain class, both in the digestive tract and at the blood-brain barrier. Thus, the isolation of "free-form" amino acids is an important aid to nutritional engineering. In many cases, the consumption of high potencies of a particular amino acid allows that nutrient to overwhelm the competition for absorption. The resulting increase in blood and tissue levels will yield the benefits conferred by that nutrient. The isolation of free-form amino acids is an important advancement in the field of nutrition science. Amino acid supplements offer a broad range of choices to complement your nutritional program.
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=253) PREGNENOLONE - The Balancing Hormone
Date:
June 04, 2005 01:40 PM
Hormones are potent regulators of the most intricate biochemical functions involved in our metabolism, growth, development, emotion and behavior. For our bodies to function properly, our hormones must be in balance with one another. But aging, stress and environmental factors can contribute to hormonal imbalances, with serious impact on our well-being. Today, science has rediscovered a beneficial hormone with the capacity to reduce stress, fatigue and support mental alertness. This hormone is broad – spectrum in its influences - with the ability to balance the levels of other hormones in our bodies. Unfortunately, our production of this hormone declines as we grow older - suggesting the desirability of supplementation. Introducing: Source Naturals PREGNENOLONE. A Wide Range of Beneficial Properties Pregnenolone - a hormone produced from cholesterol in our adrenal glands, liver, skin, testicles, ovaries, and brain - was the subject of intense interest in the 1940’s. Some of the earliest studies, performed by well-known researcher Hans Selye, found it to be helpful in reducing stress and fatigue. Additional studies were conducted throughout the decade, with positive results. Pregnenolone supplementation was found to benefit people who were under excessive stress. It also was reported to support joint and tissue function and to contribute to skin elasticity. Pregnenolone is believed to affect stress levels through its influence on the adrenal glands, which produce more steroid hormones when people are under stress. Pregnenolone may also affect brain chemistry in beneficial ways. It has been found to inhibit the GABA receptors in brain cells - which may result in increased mental alertness. It may also stimulate the NMDA (N-methyl-D-aspartate) receptors, which play an important role in regulating syNapses, thus influencing learning and memory. Pregnenolone: The Unique Hormone Much of the current interest in pregnenolone is related to its role as “the grandmother of all steroid hormones.” Pregnenolone is the starting point from which all steroid hormones are manufactured in our bodies. As a “hormone balancer,” it has the capacity to increase the levels of steroid hormones that are deficient in our bodies and to reduce the levels of excess circulating hormones. Some scientists believe pregnenolone is converted into other hormones only as they are needed by our bodies. The conversion of pregnenolone follows different pathways, depending upon cellular requirements. Pregnenolone may be converted into DHEA (dehydroepiandrosterone), which in turn can be changed into androgens (including testosterone), estrogens and other steroids; or, it may be converted into any or all of a chain of hormones including progesterone, corticosterone, and aldosterone. These characteristics make pregnenolone unique. Because cells may only convert pregnenolone into other hormones on an “as needed” basis, pregnenolone may correct imbalances in the levels of some hormones, without affecting others. This is a great advantage over steroid hormones like DHEA, which may create excess estrogen and testosterone. Pregnenolone is also distinctive because of the innumerable bodily activities it can influence. As a steroid hormone precursor, it is believed to be involved in every biochemical action exhibited by any steroid hormone. This means it may impact memory, mental alertness, stress responses, female reproductive cycles, the body’s natural defenses, and joint and tissue function. With such a wide spectrum of involvement, the potential uses of pregnenolone could be boundless. Source Naturals PREGNENOLONE is available in 10 mg sublinguals and tablets, as well as in 25 mg tablets. All potencies are sold in 60 and 120 tablet bottles.
References
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=185) PHOSPHATIDYL SERINE (PS) - Maintain healthy cells ...
Date:
June 04, 2005 11:08 AM
All we have ever known or will ever feel, begins and ends with the hundreds of billions of nerve cells that form our brain. Without them, there can be no experience; for us, nothing would exist. Our mind and personality, the sense of who we are, emanate from this immensely intricate system of nerves. The brain’s remarkable ability to perceive and perform, remember and learn, is severely challenged by today’s social and physical environment. These environmental factors accelerate the decline in nerve cell activity that normally occurs with age. Recent clinical research is revealing how previously unrecognized nutrients can strengthen the body’s natural defenses against age-related cognitive decline. Source Naturals is proud to present the latest breakthrough in nutritional support for the brain: PHOSPHATIDYL SERINE. Phosphatidyl Serine (PS) is a phospholipid which forms an essential part of every human cell, but it’s particularly concentrated in the membranes of nerve cells. Since the electronic messages that communicate and regulate every aspect of our lives travel along nerve cell membranes, the structural integrity of these membranes is imperative to our health. The nerve cell membrane is the site where molecules of sodium and potassium exchange electrons, causing the electrical impulse to be generated. This bio-electric current then travels along the membrane to trigger the release of neurotransmitters. These are the chemical messengers that cross syNapses (gaps between nerve cells) to relay information to neighboring nerve cells. This sets other electrical currents in motion– along thousands of other nerve cells. This happens billions of times each second, and is how the brain and nerves coordinate and communicate with the rest of the body. PS has a very important function in the nerve cell membrane. As a key bio-structural molecule, PS provides vital support for the membrane proteins that enable nerve cells to communicate and grow. Regulating the Flow Unlike other cells in the body, nerve cells do not reproduce. Instead, they repair and rebuild themselves, using proteins called Nerve Growth Factor (NGF). Experiments verify that PS enhances the synthesis and reception of NGF, which tend to drop off radically with age.1 PS supplements enhance the cerebral cortex’s output of acetylcholine, the neurotransmitter associated with our ability to think, reason, and concentrate. PS also stimulates the synthesis and release of dopamine, related to heightened states of attention.2 The brain’s response to stress also appears to be related to PS. When healthy young men were subjected to exercise-induced stress, those taking PS had a lowered stress response. This was measured by blood levels of ACTH, the pituitary hormone that triggers the adrenals to secrete the stress hormone cortisol.3 Well-Tested Subjects taking PS showed increased levels of brain energy metabolism and scored higher on cognitive tests.4 Behavioral factors were also measured in elderly subjects; PS positively affected their mood states.5 Over 23 clinical trials have investigated the effect of PS supplements on more than 1200 human subjects, ages 40-93. Consistent and statistically significant results suggest that PS supports brain functions that tend to diminish with age. Wellness Redefined Nutritional research continually reveals new potentials for wellness. Source Naturals is committed to helping people achieve a fulfilling life, and a fully functioning nervous system is central to this aim. Source Naturals PHOSPHATIDYL SERINE can help support your body’s natural regenerative processes, keeping your brain healthy and vital for a long, long time. Experience the difference with Source Naturals PHOSPHATIDYL SERINE.
References:
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=183) Mental Edge - Support proper Brain Function... 
Date:
June 03, 2005 06:07 PM
Aging and nutritional imbalances can disrupt the multiple body systems that affect healthy brain function. The result: cognitive symptoms* such as forgetfulness, inability to focus, and mental fatigue. MENTAL EDGE® is a Bio-Aligned Formula™ that supports the interdependent body systems involved with healthy brain function. These include neurotransmitter production, myelin sheath generation, stress response, energy metabolism, and antioxidant defense. Mental Edge®: A Bio-Aligned Formula™ Many scientists believe that only a small portion of the brain is fully utilized. MENTAL EDGE is a literal multivitamin for your brain. This comprehensive herbal-nutrient formula optimizes brain function by addressing the multiple body systems involved with cognitive health. Neurotransmitter Production Neurons (nerve cells) communicate with each other when neurotransmitters (brain chemicals) cross a small gap called a syNapse to convey a message from one neuron to the next. Second messengers help transmit the message from the membrane of a receiving neuron to its inner environment. MENTAL EDGE supports neurotransmitter production with L-glutamine, L-phenylalanine, L-pyroglutamic acid, taurine, L-tyrosine, manganese, vitamins B-1 and B-6, and inositol. Acetylcholine Production Acetylcholine is one of the most important neurotransmitters. It is vital for memory and muscle movement. The ingredients DMAE, phosphatidylcholine, L-pyroglutamic acid, vitamin B-5 and choline are precursors to acetylcholine. DMAE is particularly important because it crosses the protective blood-brain barrier more easily than the others. DMAE also enhances mental concentration. Stress Response Adaptogenic herbs help provide the brain with the support and energy it needs to deal with the physical and mental stresses of an ever-changing environment. MENTAL EDGE supports stress response with the botanicals gotu kola, schizandra, and Siberian ginseng, and with the nutrients taurine, calcium, magnesium, potassium, vitamins B-5 and C, and inositol. Energy Metabolism Just as every cell needs the proper nutrients to survive, so do neurons. The brain accounts for 2% of our body weight, yet uses 15% of our total energy supply. Adequate levels of energy-generating nutrients are vital to the high-powered functioning of this organ. MENTAL EDGE supports energy generation with ginkgo biloba, L-glutamine, calcium, magnesium, manganese, potassium, zinc, B-vitamins, biotin and folic acid. Myelin Sheath Generation Myelin, composed of fat and protein, makes up the myelin sheath that forms a protective insulating covering around certain nerve fibers. Properly formed myelin increases nerve impulse conduction. MENTAL EDGE contains vitamins B-5 and B-12, which are needed for myelin sheath generation. Lifestyle Tips for Cognitive Health: A Strategy for WellnessSM Eat Well: Recent research suggests that diets rich in beta-carotene and vitamins C and E help reduce memory problems, probably by lessening oxidative stress. And new animal research at the University of Toronto found that a highfat diet slowed the ability of rats to learn new tasks. Use Your Brain: Learn a foreign language or new hobby, do crossword puzzles, read books, and cut back on TV. Scientists at Case Western found that people who were less mentally active in middle age were three times more likely to experience memory decline as they got older. Stay Active: Vigorous walking can improve mental processes in aging individuals, according to research. Aerobic exercise increases oxygenation and blood flow to the brain, resulting in improved memory, organization, and the ability to juggle intellectual tasks. Manage Stress: Long-term anxiety or depression can make a person more forgetful. Try to regulate stress, increase social contacts, and, if necessary, seek professional help. Get Organized: Make the most of your cognitive abilities through the use of memory aids such as “to-do” lists, notes, or calendars. Neurotransmitter Production: L-Glutamine, L-Phenylalanine, L-Pyroglutamic Acid, Taurine, L-Tyrosine, Manganese, Vitamins B-1 & B-6, Inositol Acetylcholine Production: DMAE, Phosphatidylcholine, L-Pyroglutamic Acid, Vitamin B-5, Choline Antioxidant Defense: DMAE, Ginkgo Biloba, Zinc, Vitamin C Stress Response Gotu Kola, Schizandra, Siberian Ginseng, Taurine, Calcium, Magnesium, Potassium, Vitamins B-5 & C, Inositol Energy Metabolism: Ginkgo Biloba, L-Glutamine, Calcium, Magnesium, Manganese, Potassium, Zinc, Vitamins B-1, B-2, B-3, B-5, B-6, & B-12, Biotin, Folic Acid Myelin Sheath Generation: Vitamins B-5 and B-12
(https://vitanetonline.com:443/forums/Index.cfm?CFApp=1&Message_ID=174) | ||||||||||||||
What is GABA
