Search Term: " sulforaphane "
Can sulforaphane help children with autism?
May 10, 2019 10:46 AM
Cruciferous vegetables such as broccoli have enormous amounts of sulforaphane. Research has even shown that when this compound is taken in large quantities, it can help alleviate the problem of autism in children. Autism is a very important consideration because it affects about one in ten children right now; this is according to experts. New cases are also increasing worldwide. The author states that the recent increases in autism reporting is due to the fact that vaccination schedules in children are increasing and vaccines deliver toxins to the child which can damage the nervous system. Sulforaphane though has been shown to be a chemical that can help in alleviating autism in children even after they have been vaccinated. The research was carried out by scientists at the John Hopkins University who found out that eating foods that have enormous amounts of sulforaphane can help autistic children by enhancing their social skills, verbal communication ability, and their general behavior. The compound, sulforaphane, acts through activating the genes that shield the cells from inflammation, damage to the genetic material, oxidative stress, and other factors that are linked to autism. The study was published in the journal Proceedings of the National Academy of Science.
"The results of their experiment showed that the sulforaphane group demonstrated considerable improvements in social behavior by the time of the fourth week of treatment."
Read more: https://www.naturalnews.com/2019-04-20-can-sulforaphane-help-children-with-autism.html
Powerful natural medicine in broccoli sprouts found to preventcancer and protect the brain from stroke damage
February 13, 2019 09:49 AM
Sulforaphane is found in broccoli and contains an enzyme that actually helps protect the brain. This is particularly valuable as it appears to assist in coping with strokes. It is possible that taking this enzyme in pill form could decrease stroke chances or lesson any damage caused by one. It is actually just one of the many reasons why broccoli is such an amazing vegetable. Not only might it help with strokes, but it has been shown to aid in brain health, decrease the chances of some cancers, and can even assist with losing weight.
"The isolation of this compound could potentially mean that thousands of at-risk individuals could take a simple pill to reduce their risk of a stroke, or for those who have already had one, minimize damage."
Read more: https://www.naturalnews.com/2019-02-08-broccoli-sprouts-prevent-cancer-stroke-damage.html
Broccoli sprouts discovered to be a "secret weapon" against diabetes
July 01, 2017 09:14 AM
A new study has shown that broccoli may be able to slow and even reverse type-2 diabetes, which accounts for 90 to 95 percent of those diagnosed with diabetes. The pharmaceutical approach, a drug called metformin cannot be used on some people because of the risks of kidney damage. The side effects of this drug are not pleasant, and include abdominal discomfort, muscle pain, and cramping. Researchers have determined that sulforaphane, which occurs naturally in broccoli is able to lower over-expressed high glucose genes that cause diabetes. With this discovery, researchers are hoping to stop the problem early and treat prediabetic patients using broccoli, thus avoiding type-2 diabetes altogether.
"It’s impressive how the cures for debilitating health problems — say, a vegetable inside your fridge — can be easy to find."
Read more: http://www.naturalnews.com/2017-06-26-broccoli-sprouts-discovered-to-be-a-secret-weapon-against-diabetes.html
Does Broccoli Really Fight Cancer?
May 27, 2014 05:23 PM
What is a broccoli?
Cruciferous vegetables such as broccoli is known to have numerous health benefits within the body. In addition, many studies have proved that broccoli has another element known as sulforaphane that has cancer-fighting properties.
Benefits of broccoli
A recent study by the Oregon State University, suggested that sulforaphane is a powerful antioxidant in broccoli and many other cruciferous vegetables do have the power and the ability to kill cancer cells, thus leaving the prostate cells unaffected.
sulforaphane is also another potent antioxidant that has the ability to inhibit HDAC enzymes known as histone deacetylase and play a vital role in suppressing tumor-like genes thus making a perfect solution to cancer treatment. HDAC in Cruciferous vegetables such as broccoli is known to have numerous health benefits within the body. In addition, many studies have proved that broccoli has another element known as sulforaphane that has cancer-fighting properties.
A recent study by the Oregon State University, suggested that sulforaphane is a powerful antioxidant in broccoli and many other cruciferous vegetables do have the power and the ability to kill cancer cells, thus leaving the prostate cells unaffected.
sulforaphane is also another potent antioxidant that has the ability to inhibit HDAC enzymes known as histone deacetylase and play a vital role in suppressing tumor-like genes thus making a perfect solution to cancer treatment. HDAC inhibition is another very promising cancer treatment and many researchers have found that it is associated with broccoli. Cancer is often characterized by the inappropriate cell growth, however, HDAC inhibitors has the ability of restoring cells to normalcy in terms of function and thus the most effective cure of cancer.
Other studies have also demonstrated the cancer-fighting ability of the cruciferous vegetables. In the year 2009, Victoria Kirsh., of Toronto Cancer Care Ontario and her team discovered that eating vegetables and fruits in general was associated with the decreased prostate cancer risk, making it one of the best ways of enhancing health. This remarkable compound in broccoli is among the strongest anti-cancer elements in the body.
It is important to recall that you cook your broccoli in the best way possible since this will preserve the elements that helps in fighting cancer. In addition, Broccoli has myrosinase that helps in the formation of sulforaphane. You need to remember that Myrosinase is an element that can be destroyed through overcooking the broccoli. You should only steam it for 2 to 4 minutes. In conclusion, the above information should convince on the incredible ability to cure the cancer cells that are found within the body.
You Should Say: Please Pass the Broccoli, Not I’ll Pass
January 22, 2008 04:38 PM
'Please pass the broccoli': not something that many mothers hear from their children. In fact, not many children appear to like any green vegetables let alone broccoli. This is not important at such a young age, but there comes a time when the health benefits that broccoli brings become almost essential to your good health and well being. Parents are right, but your children won’t believe you.
Some say that the nutritional punch of broccoli is stronger than that of any other vegetable. Is this claim justified? Let’s have a look at the evidence and the facts and you can judge for yourself. First the ‘ordinary’ nutrients of broccoli: vitamin C (more than oranges) and A, folic acid and calcium and also lots and lots of fiber. However, this wonderful vegetable contains not only high levels of calcium, but is also the one of the richest vegetable sources of magnesium. Calcium needs magnesium in order to be properly incorporated into your bone structure, and so broccoli is a very important calcium/magnesium source for vegans that do not drink milk or eat any other dairy products.
It is also rich in protein, containing 3% by weight and is also rich in iron. It is therefore an important part of the diet of women during menstruation when iron is important to enable the blood to maintain its proper erythrocyte levels. A deficiency of iron in the diet of women can lead to anemia and render them more susceptible to infection. However, it is more than just iron that renders this vegetable an important part of the female diet. Broccoli has been established to be of major importance in preventing cancer.
It is likely the most potent anti-cancer vegetable in your diet, and it has been established over 20 years of study that broccoli can help to prevent cancers of the breast and the cervix. The indoles that it contains prevent estrogens from promoting tumor growth, and it also contains beta-carotene, a strong antioxidant that destroys the free radicals that can also cause cancer. However, there is more to broccoli than just that.
Broccoli contains the highest concentration of sulforaphane of all the cruciferous vegetables that include Brussels sprouts, cabbage, cauliflower, rocket and turnip, amongst many others. When you chew broccoli, the glucosinolate glucoraphan is converted to sulforaphane, not by the enzymes in your saliva, but by the actual physical damage done to the plant by the act of chewing. It could likely also be generated by hitting it with a hammer! It is glucosinolates that provide the slightly bitter taste many people experience when they eat vegetables such as brussels sprouts and broccoli, and that likely renders them somewhat unattractive to children!
sulforaphane is an isothiocyanate containing the NCS functional group, and is actually bound loosely to the sugar as sulforaphane glucosinolate. It is the loose binding that allows it be released on chewing. Broccoli sprouts are its richest source, and it is a strong antioxidant which is why it is so effective in reducing the possibility of certain cancers.
When fighting cancers, your body produces phase-II enzymes, and since sulforaphane induces these enzymes, it stops the carcinogens before they can damage your DNA. This is achieved through the enhancement of the transcription of the proteins that suppress the tumors. In layman’s terms, it is the generation of tumor suppressant proteins from DNA that kills off the tumors before they can destroy the DNA.
There is even more however. Indoles have already been mentioned, and those in question are predominantly indole-3-carbinol (I3C) and 3,3-diindolylmethane (DIM). The latter is generated from the digestion of the former and possesses very potent anti-cancer properties. However, this indole can affect your health in ways other than just as an anti-cancer agent. It can modulate the immune system in a way that renders it suitable for the treatment of a number of viral infections, and is also believed to be a possible answer to the problem of bacteria that have become resistant to antibiotics. It appears to operate synergistically with Interferon-Gamma, a cytokine that helps to prevent viruses from replicating within the cells of the body, to strengthen the MHC-I Complex, a part of the human genome that supports the immune response to viral attacks.
To put it plainly, broccoli can aid your resistance not only to certain cancers, but also to attack by viruses and some bacteria. It is not only cancers of the cervix and breast that broccoli can help to prevent, but also of the lung, prostate, larynx and bladder. I3C also helps to support the function of your liver in detoxifying your blood as well as supporting the cellular reproduction without which your body could not maintain itself after damage.
Broccoli is therefore an important vegetable to men as well as to women, not only for its anti-cancer properties, but also as a general antioxidant and consequent free radical scavenging properties. Its high fiber content is equally split between soluble and insoluble vegetable fiber, and so meets your dietary needs of both types.
Cruciferous vegetables such as broccoli have been singled out by health organizations the world over as essential to your diet, and you should eat them regularly. Once daily would be good, but more is recommended if possible. As stated at the start, strong tasting vegetables containing glucosinolates might not be attractive to children and younger people, but their phytochemical content (the foresaid indoles and isothiocyanates) render them very potent antioxidants and anti-cancer foods.
Taken in relation to other foods, an ounce of broccoli contains as much calcium as a glass of milk, more vitamin C than a similar weight of orange, and a medium floret has more fiber than one slice of bran bread. It is rich in vitamin A and of course there are the other antioxidants and anti-cancer phytochemicals already detailed.
There are many ways of cooking broccoli to maintain its nutritional content, but if you do not like broccoli, then there are supplements available. You can purchase pure broccoli extract or an extract from a mixture of cruciferous vegetables. The choice is yours, but of one thing there can be no doubt. Broccoli is the king of green vegetables, and the nutrients it contains are not available in any other vegetable in such a concentrated and easy to assimilate form.
Your mom was right: it's not just 'eat your veg', but 'eat your broccoli'. No nutritional advice could be better than that. “Pass the broccoli please mom!”
Supplements to Fight Prostate Cancer
July 29, 2007 11:41 AM
Prostate Cancer and Nutritional Supplements
Years of research have discovered that the foods a man chooses to eat (or doesn’t eat) can have a profound impact on the health of his prostate gland. Because of this close nutritional link, prostate cancer may be the most preventable type of cancer (after smoking-related lung cancers).
Recently, there has been an incredible amount of research and investigation of prostate cancer. Many of these studies have explored the use of certain nutrients to prevent and actually treat prostate cancer. These nutrients, calcium D-glucarate selenium, broccoli, green tea, maitake, and lycopene are powerful prostate cancer fighters. All are available as nutritional supplements that men can take every day as an important part of a healthy diet.
In this issue of Ask the Doctor, we will discuss prostate cancer and how men can actually prevent it with the use of these six nutrients. Plus, if men already have prostate cancer, these nutrients can be an important part of their treatment regimen in fighting their disease.
Q. What does the prostate gland do?
A. The prostate is a gland in a man’s reproductive system. It makes and stores seminal fluid, the milky fluid that nourishes sperm. This fluid is released to form part of the semen. The prostate is about the size of a walnut and it is located below the bladder and in front of the rectum. The prostate actually wraps around the upper part of the urethra, the tube that empties urine from the bladder through the penis.
Q. What are the symptoms of prostate cancer?
A. Early prostate cancer often does not cause any symptoms. However, many symptoms of prostate cancer are also symptoms of other problems with the prostate, such as an infection or benign prostatic hyperplasia, a prostate enlargement associated with age-related changes.
A man who has any of these symptoms should see his health care practitioner for evaluation:
-A need to urinate frequently, especially at night
-Difficulty starting urination or holding back urine
-Inability to urinate
-Painful or burning urination
-Difficulty in having an erection
-Blood in urine or semen
-Frequent pain or stiffness in the lower back, hips, or upper thighs.
Q. Are certain men more prone to get prostate cancer?
A. Age is the biggest risk factor: most prostate cancers occur in men over 65 years of age. A man’s risk for developing prostate cancer is higher if his father or brother has had the disease. African-Americans are at higher risk for the disease. Mechanics, farmers, sheet metal workers, and workers exposed to cadmium have also had high rates of prostate cancer.
Q. How is prostate cancer diagnosed?
A. A man who has any of these risk factors may want to ask his health care professional whether to begin screening for prostate cancer (even though he does not have any symptoms), what tests to have, and how often to have them.
The usual prostate tests include: Digital rectal exam: the doctor inserts a lubricated, gloved finger into the rectum and feels the prostate through the rectal wall to check for hard or lumpy areas.
Blood test for prostate-specific antigen (PSA): a lab measures the levels of PSA in a blood sample. The level of PSA may rise in men who have prostate cancer, benign prostatic hyperplasia (a non-cancerous enlargement of the prostate gland), or an infection in the prostate.
These tests will only determine if there is a problem with a man’s prostate gland. They cannot determine if the problem is cancer. Only a biopsy of a sample of prostate tissue can reveal the presence of actual prostate cancer.
Q. What nutrients help prevent or treat prostate cancer?
A. The prostate health nutrients, calcium D-glucarate, selenium, broccoli, green tea, maitake, and lycopene, each work in unique ways. Some help men’s bodies’ work more effectively some keep cancer cells from growing, while others actually kill prostate cancer cells. Let’s discuss each nutrient and how it works.
It is a troubling fact of modern life that we are continuously exposed to cancer-causing chemicals and toxins. These toxins come in part from contaminants in the food we eat and pollutants in the air we breathe. There are also “natural” toxins that are produced in our bodies. Excess hormones, such as estrogen and testosterone, can cause cancer when they are no longer needed. Cancer causing chemicals not only initiate cancer, but exposure to them can also cause existing cancers to grow bigger, stronger, and more deadly.
Our bodies do a fairly good job of eliminating some of these toxins before they can cause us harm. In the liver, the toxin is bound or attached to a chemical called glucuronic acid. The bound toxin is then excreted in bile and eventually eliminated as a waste product in the stool. However, yet another chemical, an enzyme called glucoronidase, can break this bond between the toxin and glucuronic acid. When this happens, the hormone or toxin is released back into our bodies, capable of causing us harm once more. The longer the toxins and excess hormones are in our bodies, the greater the chances they can make us seriously sick. Scientists have discovered that increased glucuronidase activity in the body is strongly associated with prostate cancer.
Fortunately, scientists have also discovered that a natural substance found in foods, calcium D-glucarate, can greatly reduce the activity of glucuronidase. Calcium D-glucarate helps our bodies keep the harmful toxins and chemicals bound to glucuronic acid. While CDG is found in fruits and vegetables, the amounts may not be sufficient to maintain effective levels to stop beta-glucuronidase. CDG has been shown in many experimental studies to significantly stop prostate cancer growth. Studies have shown that by taking calcium D-glucarate, our bodies and get rid of the toxic chemicals and excess hormones that might stimulate cancer formation.
Selenium is an essential trace mineral fund in the soil. Both plant foods like oatmeal and meats that we eat, such as chicken and beef, contain selenium. How much selenium, however, is difficult to determine. This is because the amount of selenium in soil, which varies by region, determines the amount of selenium in the plant foods that are grown in that soil. Animals, too, will have varying levels of selenium in their muscle, depending on the amount of selenium in their feed. The actual selenium level in the grasses and grains that make up animal feed reflect the amount of the selenium in the soil where they grew.
A major antioxidant, selenium slows down aging, keeps our skin supple, and helps prevent dandruff. Selenium also keeps our blood vessels healthy and protects us from heart disease. However, some of selenium’s most powerful effects are on the prostate gland.
In a recent study, researchers recruited 974 men to take part in a large clinical trial to determine if selenium could prevent cancer. Half of the men were given selenium supplements and half were given a placebo. Researchers, who did know which group got the placebo, watched and recorded the men’s progress. The researchers were amazed to learn that selenium cut the rate of prostate cancer by 63%!
The results of this study were so impressive that it has led to many other studies of selenium and prostate cancer. In fact, researchers at the
Scientists have observed over for a long period of time, that men who eat lots of broccoli have a lower risk of getting prostate cancer. It seems that sulforaphane, a compound abundant in broccoli, is the secret ingredient responsible for this connection. sulforaphane increases certain enzymes in the body, called phase 2 enzymes, which deactivate cancer-causing chemicals. In lab experiments, prostate cancer cells that were exposed to sulforaphane, the compound inhibited the growth of the cancer cells up to 80 percent.
There is a potent plant substance in green tea that is a very effective killer of prostate cancer cells. A recent study tested four common components of green tea and determined that one of these compounds, epigallocatechin gallate or EGCG, has a special affinity for prostate cancer cells. Scientists discovered that EGCG can stop the growth of prostate cancer dead in its tracks. The chemical structure of EGCG is very similar to substances in red wine and cruciferous vegetables, known cancer killers.
For many years, maitake mushrooms have been linked to good health in those who eat them. Called “dancing mushrooms” (possibly due to their wavy, rippling appearance or possibly due to the little dance of joy mushroom hunters perform when they find them in the woods), maitakes contain an important compound called D-fraction.
A recent study at
Some of the most exciting nutritional news in relation to prostate health involves lycopene. This carotenoid is found primarily in tomatoes, and men who eat lots of cooked tomatoes have very low rates of prostate cancer. Because promising preliminary reports demonstrate that lycopene can actually kill prostate cancer cells, there has been an explosion of lycopene and prostate cancer studies.
In one of these studies, 32 prostate cancer patients ate a pasta meal covered with three-fourths cup of tomato sauce every day for three weeks. Results showed their PSA levels dropped two points. Even signs of DNA damage dropped sharply. The ability of lycopene to drop these levels in just three weeks has impressed researchers and scientists worldwide.
Q. Do I have to take each nutrient separately?
A. While you can purchase each one of these nutrients and take them separately, all of these nutrients are available in prostate health formulas. Make sure the formula you buy contains calcium d-glucarate, lycopene, and selenium, broccoli standardized to contain a minimum of 125 mcg sulforaphane, green tea, and maitake mushroom extract. Standardized ingredients provide consistently effective nutrients.
Q. What else can men do to prevent prostate cancer?
A. Adopting a healthy diet, including eating 5 to 9 servings of fruits and vegetables every day, eating several servings of whole grain cereals and bread, and reducing red meat consumption to 2 or 3 servings per week has been shown to reduce the risk of all kinds of cancer. In addition, the recent lycopene studies suggest that a diet that regularly includes tomato-based foods may help protect men from prostate cancer.
Men 50 years and older should have a digital rectal exam (DRE) and PSA test each year. African-Americans and those at higher risk should begin at age 40. Talk with your health care professional to determine how frequently the test should be done.
This year doctors expect to find 180,000 new cases of prostate cancer is the
More cancers are caught early and new treatments might help make it possible for men to live long and healthy lives following their diagnosis. By taking a few simple steps, men diagnosed with prostate cancer can take charge of their lives and overcome much of the fear and anxiety that accompany a cancer diagnosis.
Breast Cancer and Natural Supplements
May 11, 2007 10:47 AM
Breast Cancer and Nutritional Supplements
There is probably nothing more frightening for a woman than the discovery of a lump in her breast. Cancer and all its consequences quickly come to mind. This quick association may materialize, in part, because no woman is immune. Most have a friend, a sister, a mother, or a coworker who has been diagnosed with the disease. And they know how difficult dealing with this disease can be. Fortunately, 80% of all breast lumps are not cancerous. Most are cysts or a benign clump of tissue.
Over her lifetime, a woman’s breasts undergo many, many changes. From before puberty and on, breast tissue is continually evolving. Breasts often feel different before menstrual cycle, returning to normal a few days after. Pregnancy certainly causes changes in a woman’s breasts, as does breastfeeding. And as women age, breast tissue becomes less dense.
Because of these continual changes, breast tissue especially requires adequate nutrition. While everyone benefits from a healthy diet, there are additional nutrients from which women can specifically benefit.
In this issue of Ask the Doctor, we will discuss breast cancer and the vast amount of research that has explored the role nutrition plays in this serious and still deadly disease. Specifically, we will discuss how two B vitamins, calcium D-glucarate, broccoli extract, green tea, maitake mushrooms, and iodine can all help prevent breast cancer.
Q. How can these nutrients prevent breast cancer?
A. Scientists learn a lot about disease from simply observing what is happening around them. One observation that has been recognized for many years is that certain cultures have very low incidence of breast cancer. Women n
Moms (and dads) have also learned a lot about diseases simply by observing what is happening in their families. They have notices that certain vegetables play a large role in the prevention of all types of diseases, including cancer. And, accordingly, they have been urging their offspring to eat their vegetables for several generations.
Building on these observations, scientists have designed and carried out many studies to determine what it is about these nutrients that can prevent breast cancer. What they have discovered, so far, follows. Let’s start with the B vitamins.
Deficiencies of this vitamin can result in a serious type of anemia. Nerve damage can also occur if B12 levels are too low. Researchers are now investigating whether breast cancer may, in part, be caused by a B12 deficiency as well.
Another study, this one taking place in a laboratory setting, discovered that vitamin B12, applied directly against experimental breast cancer cells, actually stopped the cancer cells from growing. The researchers conducting the experiment believe that giving vitamin B12 to women with breast cancer as part of a chemotherapy regime, might help keep the cancer in check.
Low folic acid intake is linked to the development of all cancers. This is because folic acid is crucial to the making and continual repair of DNA, the molecule that carries our genetic code. A recent study discovered that high intakes of folic acid might actually reduce the risk of breast cancer. The researchers looked at the diets of over 2600 women. During interviews with the researchers, the women reported what they usually ate. Once the data was collected, the results showed that women, who ate lots of foods that contained folic acid, had much lower rates of breast cancer.
There is no clear-cut, single cause of breast cancer. Many factors are required for the disease to appear. One such factor is estrogen. A recent study showed that women who developed breast cancer tended to have higher levels of estrogen circulating in their bodies than women without breast cancer. This means that women who got their periods before age eleven or entered menopause after age fifty-five have a higher risk of breast cancer. This also supports the theory that the number of menstrual cycles a woman has affects her risk for breast cancer.
Another factor is drinking alcohol. Because alcohol raises estrogen levels, if a woman consumes even moderate amounts of alcohol her risk of breast cancer also is increased. The link between alcohol and breast cancer may even be stronger than other dietary links. However, an important study has discovered that folic acid may uncouple this link.
A very large study of over 34,000 women recently studied the effect of folic acid on the risk of breast cancer. This project was part of the Nurses’ Health Study, an ongoing, long-term study that looks at nutrition’s role in the development of disease. The women in the folic acid and breast cancer study were followed for 12 years. The participants completed detailed food questionnaires that provided the researchers with important data.
The women were divided into four groups:
1. Women with low folic acid levels and drink alcohol
2. Women with high folic acid levels and rink alcohol
3. Women with low folic acid levels and don’t drink alcohol
4. Women with high folic acid levels and don’t drink alcohol
Within these four groups the women were further divided into subgroups according to the amount of alcohol they consumed each day and their specific folic acid intake.
The researchers found that women who consumed the lowest amounts of folic acid and drank at least one alcoholic beverage a day had the highest rate of breast cancer. In contrast, women who had high intakes of folic acid and also drank at least one alcoholic beverage a day, had the same rate of breast cancer as the women with high folic acid intakes who did not drink. In other words, women who had high levels of folic acid in their diet erased their alcohol-related increase in breast cancer risk.
It seems estrogen can be both friend and foe. While women need the hormone to soften skin, thicken hair, and fill out hips and breasts, estrogen can also nourish breast tumors, helping them grow bigger, stronger, and more deadly. Thanks, in part, to good nutrition, American women get their periods early and go through menopause alter in life. Women today also have fewer pregnancies; families with one or two children are quite common.
All of these factors increase the time women’s bodies are exposed to estrogen. As we discussed before, longer exposure means increased opportunities for estrogen to cause trouble. It is also a troubling fact of modern life that we are continuously exposed to cancer-causing chemicals and toxins. These toxins come in part from contaminants in the food we eat and pollutants in the air we breathe.
The body does have a system that eliminates some of the excess estrogen and toxic chemicals before they can cause harm. In the liver, they are bound or attached to a chemical called glucuronic acid. The bound toxin or estrogen is then excreted in bile and eventually eliminated as a waste product in the stool.
However, an enzyme called beta-glucuronidase can break this bond between estrogen and glucuronic acid. When this happens, the hormone or toxin is released from its bone, capable of causing harm once more. Increased beta-glucuronidase activity is associated with an increased risk for various cancers, particularly hormone-dependant cancers like breast cancer.
Fortunately, scientists have discovered that a natural substance found in foods calcium D-glucarate (CDG) can stop the activity of beta-glucuonidase. CDG keeps the harmful estrogen bound to glucuronidase. While CDG is found in fruits and vegetables, the amounts may not be sufficient to maintain effective levels to stop beta-glucuronidase.
CDG has been shown in experimental studies to significantly stop beast cancer growth. And several human trials are currently underway with CDG to determine its capability to decrease the breast cancer risk in women at high risk for the disease.
There are some very interesting connections between breast tissue and thyroid tissue. Iodine is an essential trace element present in a hormone of the thyroid gland and is involved in several metabolic functions. One iodine function is the protection of breast tissue from cancerous cells.
In a laboratory study, researchers exposed breast cancer cells and breast tissue without any cancer to a type of seaweed that contains high levels of iodine. The seaweed killed all of the cancerous cells, yet did not harm the normal breast cells. Japanese women frequently eat this type of seaweed and have very low rates of breast cancer. The study’s researchers believe one reason for this low incidence of breast cancer may be the iodine in the seaweed.
And, for some as yet unknown reasons, women who have thyroid cancer are at higher risk of developing breast cancer. While they are unsure why this happens, researchers are continuing to study this link, and support of healthy thyroid function remains an important consideration.
For quite some time, scientists have observed that cruciferous vegetables, such as broccoli, cabbage, and cauliflower, significantly reduce the risk of disease, including cancer. It seems a phytochemical in broccoli sulforaphane, is one of the chemicals responsible for this beneficial activity. sulforaphane increases certain enzymes in the body called phase 2 enzymes that deactivate cancer-causing chemicals.
Breast cancer cells exposed to sulforaphane in several lab experiments showed that the compound inhibited the growth of the cancer cells up to 80 percent. Researchers are in the process of setting up clinical trials to study sulforaphane’s effect in women who have breast cancer.
There is a tall amount of research, including finding from the Nurses’ Health Study, that suggest green tea beverage consumption is associated with a lower incidence of breast cancer. In fact, researchers have long noted the low rates of breast cancer in
The active compound in green tea responsible for breast cancer inhibition is epigallocatechin-3 gallate or EGCG. When breast cancer cells are exposed to EGCG in lab experiments, the cells stop growing, lose their ability to replicate, and die.
In a recent study, researchers discovered that drinking green tea prevented the recurrence of breast cancer in women who have previously been diagnosed and treated for the disease. This study involved over 1100 Japanese women. The women who drank green tea every day had very low rates of their breast cancer returning.
For thousands of years, maitake mushrooms have been linked to good health in those who eat them. Called “dancing mushrooms” (possibly due to their wavy, rippling appearance or possibly due to the little dance of joy mushroom hunters perform when they find them in the woods), maitakes contain an important compound called D-fraction.
Not only does the D-fraction in maitake mushrooms stop the growth of cancerous tumors, it also alerts and stimulates immune cells (including macrophages and natural killer cells) to fight the disease. Maitake also inhibits some of the mechanism that promotes metastasis, or spread, of cancer cells in the lymph and bloodstream.
Because of this success, maitake is now being used in clinical trials of women with breast cancer. One study reported significant improvement of symptoms, including reduction of the tumor. The maitake was given to breast cancer patients in addition to standard chemotherapy.
Q. Should these nutrients be used in place of traditional treatment for breast cancer?
A. Absolutely not. None of these nutrients can cure breast cancer. However, they can be a part of a validated plan of treatment. If you have breast cancer, talk to your health care practitioner about these nutrients. Remember, nutritional supplements are just that: supplements to food, medication, and treatment. They are intended to enhance and prevent, not replace.
Despite apprehension in performing self-breast exams, women are very proactive in their health. Yearly mammograms and pap tests have been an important part of their lives for many years, and newer and more accurate diagnoses are emerging. The prevention of health problems in themselves and their families has always been a high priority for women. And for women, nutrition has played an important part of health problem prevention.
Nutritionally speaking, what benefits your breasts benefit your whole body. However, as we have learned, there are specific links between nutrition and developing breast cancer that seem to be fairly strong.
Making a few changes may reduce the risk of developing the disease. The nutrients listed here, vitamin B12, folic acid, calcium d-glucarate, iodine, broccoli, green tea, and maitake mushrooms can be an important part of a woman’s preventative health regimen.
Wasabi Rhizome Cleanse - Supports Phase II Liver Detoxification - Wasabi Health Benefits
August 01, 2006 10:41 AM
Most people know of it as a pale-green lump on the side of their plates in Japanese restaurants—a hot, spicy accompaniment to sushi or sashimi. The fiery yet sweet taste perfectly compliments the saltiness of soy sauce and the cool delicacy of raw fish. But wasabi is much more than a burst of culinary flavor, it has been used by traditional herbalists of Japan since the 10th century and is now being rediscovered by modern health practitioners for its stunning health benefits.
Wasabi has powerful detoxification properties, in particular, it supports the immune system and cleanses the liver. Wasabi contains precursors to phytochemicals called isothiocyanates that help remove toxic substances that are stored in the liver’s fatty tissues.
The rare wasabi plant is a natural, potent support to a healthy, cleansed liver that in turn affects the detoxification and cleansing of the entire body. Source Naturals is pleased to bring you this convenient, effective addition to your wellness program.
Wasabia Japonica - Rooted In Health
The wasabi plant (Wasabia japonica) grows naturally in the mountains of Japan in the gravel and sandbars of coldwater streams and rivers. Rare and difficult to grow, it takes three years for a wasabi root or rhizome to reach maturity. Because of its popularity, wasabi is now cultivated hydroponically and in cold, wet environments outside of Japan, such as in New Zealand and Oregon. Traditionally, the rhizome was freshly grated at the table with a sharkskin grater, popular with dishes such as seafood or udon noodles. Now wasabi is usually dried into powder form and made into the pale green paste familiar to most westerners. Often, however, restaurants do not serve real wasabi; since it is so rare and expensive, a dyed horseradish paste is served in most American restaurants.
What makes wasabi so special? It comes from a good family; the brassica vegetables in the cruciferae family include such health giants as broccoli, horseradish, Brussels sprouts, cabbage, cauliflower and kale. All of these are well-known detoxifying plants, and wasabi appears to be the most amazing of them all, with detox capacities far beyond the others in the family because it is loaded with isothiocyanate precursors. This chemical not only gives wasabi its famous “fire,” it is likewise a fireball of detoxification properties.
Phase II Detox
The liver detoxifies the by-products of digestion and other harmful substances through a complex series of chemical reactions often referred to as Phase I and Phase II Detoxification. Phase I enzymes begin the process by taking the toxic molecule and changing it into a bioactive form. This process breaks down toxins. A second set of enzymes, Phase II, then neutralizes the toxin and makes it water soluble for elimination. Wasabi, with its long-chain isothiocyanate precursors, induces the Phase II enzymes. Simply stated, it is the sparkplug that starts Phase II enzymes on their work. This process, all done in the liver, supports the body’s ability to clean itself of impurities.
Part of a Complete Wellness Program
In the modern world, with so many pollutants, it is critical to your health and longevity that you cleanse these toxic compounds from your body. Wasabi, along with a whole food, high-fiber diet and reduction of alcohol consumption, supports the liver— the largest of the vital organs and the key to the digestion and elimination systems and most particularly, the body’s ability to cleanse itself. Source Naturals is pleased to bring you this exceptional product as part of your wellness program.
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Munday, R (2002) Selective induction of phase II enzymes in the urinary bladder of rats by allyl isothiocyanate, a compound derived from Brassica vegetables.
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Rose, P (2000) 7-methylsulfinylheptyl and 8- methylsulfinyloctyl isothiocyanates from watercress are potent inducers of phase II enzymes. Carcinogenesis: 21(11):1983-1988.
Cancer fighter found in broccoli
July 27, 2005 10:05 AM
Remember when your mother told you to eat your broccoli? Research shows that mother just might know best. In a recently published paper, Dr. Paul Talalay of Johns Hopkins University School of Medicine indicates that studies in his lab show broccoli is rich in sulforaphane, a chemical that works as a powerful anti-cancer compound in laboratory mice.
Other studies have shown that a diet rich in cruciferous vegetables—which include broccoli, Brussels sprouts, cabbage, cauliflower, and others— can significantly reduce the risk of cancer of the bowel, stomach and breast. Until now, the exact reasons why these vegetables had this effect we re not very clear. Until now, that is. According to Dr. Talalay, it appears that at least one anticancer ingredient in the vegetables is sulforaphane, which essentially causes cells to expel cancer-causing toxins. In addition, Dr. Talahay said that this study was the first to show that a high-potency compound isolated from vegetables could accelerate the detoxification process in cells.
The published report outlines how the research team isolated sulforaphane from broccoli, then fed it to a group of mice. When cells in the mice we re examined after five days, the scientists found that the chemical had triggered enzymes known to neutralize carcinogens within cells. Be yond this study, Dr. Talalay indicates that research will shift to the long-term effects of the chemical. “Our prediction is that sulforaphane will block tumor formation in animals and presumably in man.” In earlier studies, Dr. Talalay and others have shown that certain proteins in cells, called phase I enzymes, can take innocent chemicals and turn them into cancer-causing agents.
Other proteins, called phase 2 enzymes, tend to block formation of carcinogens. According to the study, sulforaphane is a potent activator of phase 2 enzymes. The Hopkins researchers will conduct tests to determine how much broccoli must be consumed to establish an effective anti-cancer level of sulforaphane in cells.
Over a decade of research has been done on cruciferous vegetables and there are large databases that confirm that cruciferous vegetables substantially reduce the risk of disease, specifically cancer. Studies show substances in these vegetables that have anti-cancer properties which cause the body to speed up production of enzymes, therefore being capable of neutralizing cancer agents. The studies also show these pre vent damage to our DNA and slow the aging process. In women, metabolic processes are regulated which eliminate the bad (and maintain the good) estrogen, therefore substantially reduce the risk of breast cancer. Shortly after the NCI study was released, John Hopkins School of Medicine revealed similar studies.
Cancer fighter is found in broccoli
June 14, 2005 06:09 PM
Cancer fighter is found in broccoli
WASHINGTON (AP) - Remember when your mother told you to eat broccoli? Scientists say they've proved mother knows best.
Dr. Paul Talalay of Johns Hopkins University School of Medicine said in a paper published today that studies in his lab show broccoli is rich in sulforaphane, a chemical that works as a powerful anti-cancer compound in laboratory mice. Studies have shown that a diet rich in cruciferous vegetables such as broccoli, Brussels sprouts, cabbage and cauliflower, can lower the risk of cancer of the bowel, stomach and breast. How those vegetables caused the effect wasn't clear.
Now, Dr. Talalay said, it appears that at least one anti-cancer ingredient in the vegetables is sulforaphane. It works by causing cells to expel cancer-causing toxins. He said this is the first time a high-potency compound has been isolated from vegetables and has been shown to accelerate the detoxification process in cells. Dr. Talalay said his team isolated sulforaphane from broccoli, then fed it to a group of mice. When cells in the mice were examined after five days, the scientists found that the chemical had triggered enzymes known to neutralize carcinogens within cells. Research, Dr. Talalay said, will shift to the long-term cancer-fighting effects of the chemical. "Our prediction is that sulforaphane will block tumor formation in animals and presumably in man," he said. Nutrition and medical scientists are trying to find ways to prevent cancer through a diet rich in foods that have anti-tumor properties.
In earlier studies, Dr.Talalay said, he and others have shown that certain proteins in cells, called Phase I enzymes, can take innocent chemicals and turn them into carcinogens, or compounds that can give rise to cancer by disrupting the genetic pattern in cells. Other proteins, called Phase 2 enzymes, he said, tend to block formation of carcinogens. sulforaphane, he said, is a potent activator of Phase 2 enzymes. "There is mounting evidence that if you are able to raise the Phase 2 enzymes, this will divert the carcinogenic compounds from damaging the [genes]," Dr. Talalay said. "By tilting this balance toward Phase 2 enzymes, we can achieve protection from cancer." The Hopkins researchers will conduct tests to determine how much broccoli must be consumed to establish an effective anti-cancer level of sulforaphane in cells. Over a decade of research has been done on cruciferous vegetables and there are large databases that confirm that cruciferous vegetables substantially reduce the risk of disease, specifically cancer. Studies show substances in these vegetables that have anti-cancer properties which cause the body to speed up production of enzymes, therefore being capable of neutralizing cancer agents. The studies also show these prevent damage to our DNA and slow the aging process. In women, metabolic processes are regulated which eliminate the bad (and maintain the good) estrogen, therefore substantially reduce the risk of breast cancer. Shortly after the NCI study was released, John Hopkins School of Medicine revealed similar studies.
Due to these study results, the National Cancer Institute, the American Cancer Society, the National Academy of Sciences, the U.S. Department of Agriculture, John Hopkins School of Medicine and the FDA have all reached out to inform the public of the anti-cancer compounds found in cruciferous vegetables, and are advocating the daily consumption of these vegetables. The average American has been eating only 4 and one half pounds of these vegetables per year!
The A Team
June 14, 2005 06:04 PM
The A Team
by Gregory Meade Energy Times, October 11, 2004
Want the A Team playing to improve your health? When you accumulate enough antioxidants to help you attack the molecular marauders out to mar your well-being, you improve your chances of avoiding illness.
Nowadays you hear plenty of talk about the benefits of antioxidant nutrients. Antioxidants are the ammunition the body uses to fight off internal damage. They offer the body the means to fight against disease but, at the same time, your body must be in the position to use them optimally. That means getting enough sleep, consistently exercising and avoiding overly processed foods. Those lifestyle habits allow your body to garner its resources and effectively implement antioxidants in its quest for well-being.
Your body has a love-hate relationship with oxidation: Can't live without it, often has trouble living with it. For instance, the production of energy in your cells requires oxidation. But the byproducts of that process, problematic molecules called free radicals, have to be chemically changed or eliminated to avoid the damage that results when they interact with other parts of the cell. Left unchecked, these molecular troublemakers can wreak havoc, oxidizing and punching holes in cell membranes and damaging other structures they contact. Antioxidant nutrients are used to defend against oxidation, quell these harmful destroyers and limit the potential harm they can cause.
For a quick glimpse of one of your basic antioxidant defenses, look in the mirror. The color in your eyes represents antioxidant protection against oxidative injury from the ultraviolet rays in sunlight. Sunlight's energy sets loose free radicals every time it enters the lenses in your eyes. Pigments absorb this radiation and, in most cases, render it harmless.
As part of your vision's defenses, two of the antioxidant pigments in your food, lutein and zeaxanthin, are deposited by your body in certain areas of your eyes-in a section called the macula as well as the lens (BJ Opthalmol 1998; 82:907-10).
Lutein and zeaxanthin are classified as carotenoids, chemical relatives of beta carotene, the antioxidant pigment that makes carrots orange, and lycopene, the anticancer red coloring found in tomatoes. These fat-soluble nutrients are also present in algae. In both your eyes and plants, these nutrients absorb the destructive ultraviolet rays that give birth to free radicals.
Studies show that consuming large amounts of these pigments lowers your risk of a common form of blindness called age-related macular degeneration (ARMD) and drops your chances of age-related cataracts. (More than 30 million people worldwide suffer from ARMD, and cataracts is the leading cause of blindness across the globe.)
When the sun's rays enter the eye, lutein and zeaxanthin absorb and filter out dangerous radiation before it can injure the macula. The macula is the central part of the retina that allows us to see very fine detail. Otherwise, over time, as the macula deteriorates, our vision worsens. In addition, some researchers believe these nutrients help lower your chances of cancer.
Lutein and zeaxanthin are found in spinach, Brussels sprouts, corn, collard greens, green beans, egg yolks, broccoli, cabbage, kale, lettuce, kiwi and honeydew melons. The petals of yellow flowers like marigolds and nettles are also rich in these antioxidant nutrients.
You can also increase your chances of better sight as you age by consuming sulphoraphane, an antioxidant found in broccoli. Researchers at Johns Hopkins University have found that sulphoraphane takes part in the body's efforts to shield eye cells from free radicals generated by ultraviolet light (Proc Natl Acad Sci 2004; 101(28):10446-51).
The researchers who performed this study believe that unlike the antioxidant nutrients vitamin C and natural vitamin E, sulphoraphane acts as an "indirect" antioxidant. That means that while those two vitamins are used by the body to directly defuse the harmful oxidative force of free radicals (and then must be replaced or regenerated in the cells), sulphoraphane acts indirectly, boosting the body's immunity defenses. Because of that indirect action, researchers point out, sulphoraphane lasts longer in the body and may produce a more profound, long-term antioxidant effect.
In other laboratory tests, researchers have discovered that sulphoraphane can kill Helicobacter pylori, a bacterium recognized 20 years ago as the cause of debilitating stomach ulcers and often-fatal stomach cancers (Proc Natl Acad of Sci 5/28/02). This research shows that sulphoraphane is even effective against antibiotic-resistant Helicobacter. Adding to its benefits, sulphoraphane can help kill bacteria both inside and outside stomach cells; when this bacteria hides inside of cells it is particularly difficult to fight.
" We've known for some time that sulforaphane had modest antibiotic activity," says Jed Fahey, a plant physiologist at Hopkins. "However, its potency against Helicobacter, even those strains resistant to conventional antibiotics, was a pleasant surprise."
Looking for Mr. Good Diet
For the biggest bang for your antioxidant buck, combine antioxidants with good lifestyle habits. A laboratory study of the heart-healthy effects of taking supplements of the antioxidant vitamins C and natural E along with L-arginine (an amino acid) found that exercise magnifies benefits (Proceedings of the National Academy of Sciences 5/24/04, online). The scientists who performed this study recommend exercise along with antioxidants to boost your nutritional advantage.
The box score shows that when playing with the A Team you've got the best chance of hitting an antioxidant home run.
America's Most Wanted
June 14, 2005 05:23 PM
America's Most Wanted
by Brian Amherst Energy Times, January 6, 2000
The United States eats well, a little too well, according to experts. Amply supplied with a large supply of high-calorie food, our diets might seem to be chock full of every conceivable nutrient. Well, to the question "Getting all the right vitamins, minerals and other nutrients?" the most appropriate answer seems to be "Not exactly." Eating a lot doesn't equal eating a lot of the most important vitamins and minerals. So, which vitamins and minerals are likely to show up in short supply in the typical American diet? Calcium certainly sits at the top of list. According to the most recent Continuing Survey of Food Intake by Individuals, which is conducted by the United States Department of Agriculture (USDA), women and girls age 12 and up are not consuming adequate calcium from their diet. Research reveals that about 1200 mg. day suffices for those over age 50 and 1000 mg a day should be adequate if you're between the ages of 19 and 50. Since strong bones are formed during "the first three decades of life," says Laura Bachrach, MD, of Since strong bones are formed during "the first three decades of life," says Laura Bachrach, MD, of Stanford University, ". . .osteoporosis is a pediatric disease." For long-range protection against that bone-weakening disease, kids should eat calcium-rich, low-fat dairy products and plenty of leafy greens (broccoli, cabbage, kale) as well as salmon (with bones), seafood and soy. But the calcium campaign does not end in early adulthood. Bone mass begins to deteriorate at about age 30. Menopausal hormonal changes can exacerbate bone brittleness. Medical conditions, including cancer, liver disease and intestinal disorders; prescription drugs; tobacco and alcohol indulgence; or a decline in activity, especially the weight-bearing kind, also jeopardize bone strength. According to the National Osteoporosis Foundation, about one in every two American women will break a bone after age 50 due to osteoporosis. That translates into about half a million fractured vertebrae and more than 300,000 shattered hips. Frequently, those breaks are life-threatening.
The critical role of calcium in many body functions is perhaps the most extensively clinically documented among nutrients. Researchers in the Department of Medicine, Oregon Health Sciences University in Portland, reviewed epidemiological and clinical studies conducted over the past two years on the relationship between dietary calcium and blood pressure (J Am Coll Nutr October 1999: 398S-405S). "Nearly 20 years of investigation in this area has culminated in remarkable and compelling agreement in the data," the researchers report, "confirming the need for and benefit of regular consumption of the recommended daily levels of dietary calcium." Investigators at the State University of New York, Buffalo School of Dental Medicine, presented results of their studies of calcium and vitamin C and gum disease at the June 26, 1998 meeting of the International Association for Dental Research. Two separate inquiries revealed that people who consumed too little calcium as young adults, and those with low levels of vitamin C in their diets, appear to have nearly twice the risk of developing periodontal disease later in life than folks with higher dietary levels of either nutrient.
Calcium: Much Documented Researchers offer extensive evidence of calcium's benefits on many fronts: n Osteoporosis poses a threat to older men as well as women, according to Randi L. Wolf, PhD, research associate at the University of Pittsburgh Graduate School of Public Health. Dr. Wolf presented her award-winning study to an October 3, 1999 meeting of the American Society for Bone and Mineral Research. Dr. Wolf suggests that men increase their consumption of calcium, particularly after age 80, to avoid age-related declines in the amount of calcium absorbed. According to Dr. Wolf, "It appears that the hormonal form of vitamin D, which is the main regulator of intestinal calcium absorption, may have an important role. We are conducting more research to better understand the reasons for why calcium absorption declines with age in men." n Scientists at Tufts University in Boston did some earlier work on the calcium-vitamin D connection and reported it in the September 4, 1997 New England Journal of Medicine. Using the National Academy of Sciences (NAS) increased recommended daily intake of 1200 milligrams of calcium and 400 to 600 international units of vitamin D for people over 50, the Tufts researchers found that with supplementation of the nutrients, men and women 65 and older lost significantly less body bone and, in some cases, gained bone mineral density. n Two studies published in American Heart Association journals show that atherosclerosis and osteoporosis may be linked by a common problem in the way the body uses calcium. The September 1997 Stroke revealed that, in a group of 30 postmenopausal women 67 to 85 years old, bone mineral density declined as atherosclerotic plaque increased. Researchers reporting in Circulation (September 15, 1997) advanced the theory that the osteoporosis-atherosclerosis connection may be related to a problem in handling calcium. n For people who had colon polyps removed, taking calcium supplements decreased the number of new polyps by 24% and cut the risk of recurrence by 19%, according to researchers at the University of North Carolina, Chapel Hill, School of Medicine. The study, published in the January 14, 1999 New England Journal of Medicine, was a first in crediting calcium with anti-cancer properties.
The D Factor
Without adequate vitamin D, your absorption of calcium slips and bone loss can accelerate, increasing the risk for fractures. Fifty percent of women with osteoporosis hospitalized for hip fractures at Brigham and Women's Hospital in Boston had a previously undetected vitamin D deficiency (Journal of the American Medical Association, April 28, 1999). University of Pittsburgh Cancer Institute researchers told participants at the April 14, 1997 meeting of the American Association for Cancer Research that vitamin D "significantly inhibits highly metastatic, or widespread, prostate cancer in animals," suggesting its potential for treating men with similar conditions. Few foods that Americans eat, except dairy, contain much vitamin D, but we can usually synthesize sufficient amounts from as few as five minutes' exposure to the sun. But as skin ages, its ability to act as a vitamin D factory decreases. According to Michael F. Holick, the director of the Vitamin D, Skin and Bone Research Laboratory at Boston University Medical Center, upwards of 40% of the adult population over age 50 that he sees in his clinic are deficient in vitamin D. Recently, the National Academy of Sciences (the official body that decrees the required amounts of necessary nutrients) increased the daily recommendations of vitamin D to 600 IU for people over 71, 400 IU for those aged 51 to 70 and 200 IU for people under 50. The best dietary sources, apart from dependable supplements, are dairy and fatty fish like salmon. Four ounces of salmon provide about 300 IU.
The Facts About Fats
The American lust for low-fat, high-carbohydrate diets filled with sugary foods has exploded into nothing short of "obsession," according to experts at the General Research Center at Stanford University Medical Center (Am J Clin Nutr 70, 1999: 512S-5S). That mania oftens robs us of the crucial balance of omega-3 and omega-6 fatty acids typical of the Mediterranean diet that protect us from heart disease by controlling cholesterol and making blood less likely to form clots. These fatty acids cannot be made by the body but are critical for health: n Omega-3 fatty acid (linolenic acid) comes from fresh, deepwater fish (salmon, mackerel, sardines) and vegetable oils such as canola, flaxseed and walnut. n Omega-6 fatty acid (linoleic acid) found primarily in raw nuts, seeds and legumes and in saturated vegetable oils such as borage, grape seed, primrose, sesame and soybean. The American Heart Association recommends limiting total fat consumption to 30% of daily calories. Saturated fats like those in dairy and meat products as well as vegetable oil should comprise 10% of total calories; total unsaturated fat (fish oils, soybean, safflower nuts and nut oils) should be restricted to 20 to 22% of daily calories.
Be Sure About B12
Vitamin B12 presents a particular problem for the elderly because older digestive systems often don't secrete enough stomach acid to liberate this nutrient from food. (The elderly have no problem absorbing B12 from supplements, because it's not bound to food.) Vitamins generally moderate the aging process but, ironically, that process and the diseases that frequently accompany it affect vitamin metabolism (Schweiz Rundsch Med Prax 83, 1994: 262-6). And because of those changes, we need more of certain vitamins. This is the case for vitamins D, B6, riboflavin and B12. Crucial for health, B12 is necessary to prevent anemia, and, according to recent studies, needed (along with folate and B6) to help stave off heart disease. B12, with thiamine and niacin, boosts cognition (Adv Nutr Res 7, 1985: 71-100). Screening for vitamin B12 deficiency and thyroid disease is cheap and easy and can prevent conditions such as dementia, depression or irreversible tissue damage (Lakartidningen 94, 1997: 4329-32). In the January 5-12, 1999 issue of Circulation: Journal of the American Heart Association, the AHA urged doctors to screen levels of homocysteine (the amino acid byproduct of protein digestion that damages arteries, causes heart disease and, possibly, strokes) in patients at high risk for heart disease. They also recommended all Americans to up their daily levels of vitamins B6 and B12, as well as folic acid. Since fruits, vegetables or grains lack B12, vegetarians need B12 supplements. And they're a good idea for the rest of us, too.
Folic Acid Benefits
Folic acid made headlines in the early 1990s when the U.S. Public Health Service declared that "to reduce the frequency of neural tube defects [spina bifida, or open spine, and anencephaly, a lethal defect of the brain and skull] and their resulting disability, all women of childbearing age in the United States who are capable of becoming pregnant should consume .4 milligrams (400 micrograms) of folic acid per day." This recommendation followed voluminous research that showed taking folic acid was associated with a significantly reduced risk of birth defects. (The advisory is based on the fact that nearly half of all pregnancies are unplanned. If you think you are pregnant, consult your health practitioner for supplementary advice.)
A Team Player
Folic acid's efficacy intensifies when it works with other nutrients. Among many studies on the preventive powers of folic acid on birth defects, one published in The New England Journal of Medicine (327, Dec. 24, 1992: 1,832-1,835), disclosed an even greater decrease in neural tube defects when supplements of folic acid contained copper, manganese, zinc and vitamin C. As a warrior against homocysteine, folic acid joins the battalion of B12 and B6 in detoxifying this harmful protein. At the University of Washington's Northwest Prevention Effectiveness Center, researchers recently analyzed 38 published studies of the relationship between folic acid, homocysteine and cardiovascular disease and, according to associate professor Shirley A. Beresford, MD, folic acid and vitamin B12 and B6 deficiencies can lead to a buildup of homocysteine.
Canadian researchers reported in the Journal of the American Medical Association (275, 1996: 1893-1896) that men and women with low folic acid have a 69% increase in the risk of fatal coronary heart disease. This 15-year study of more than 5,000 people stressed the need for dietary supplementation of folic acid. Folic acid also has been credited with the potential to protect against cancers of the lungs, colon and cervix. It appears to help reverse cervical dysplasia, the precursor cells to cervical cancer, especially for women taking oral contraceptives, which may cause a localized deficiency of folic acid in the cells of the cervix. According to Shari Lieberman, PhD, and Nancy Bruning, authors of The Real Vitamin & Mineral Book (Avery), folic acid derivatives work with neurotransmitters, the chemicals that permit signals to be sent from nerve fiber to nerve fiber. A lack of folic acid can cause some nervous-system disorders, such as depression, schizophrenia and dementia; it also may be related to some forms of mental retardation. Other supporting roles of folic acid, according to researchers: the formation of normal red blood cells, important for preventing the type of anemia characterized by oversized red blood cells; strengthening and improving white blood cell action against disease; limiting production of uric acid, the cause of gout.
The Best Sources
Many foods are rich in folic acid: beef, lamb, pork and chicken liver, spinach, kale and beet greens, asparagus, broccoli, whole wheat and brewer's yeast. But experts believe that only 25 to 50% of the folic acid in food is bioavailable. Processing also reduces an estimated 50 to 90% of its content. Folic acid supplementation overcomes these obstacles with little risk, as it has no known toxicity. Women taking folic acid who are current or former users of oral contraceptives may require additional zinc. And be sure to augment your folic acid supplement with its synergistic counterpart, vitamin B12.
Focus on Fiber
The American Heart Association came out squarely behind fiber in a June 16, 1997 issue of its journal Circulation: Double your daily intake to lower cholesterol and the risk of heart disease. The American diet is consistently low in fiber, notes Linda Van Horn, PhD, RD, author of the article. Twenty-five to 30 grams a day from foods (or supplements) are not only heart healthy but seem to aid weight control.
Getting enough iron? An estimated 25% of adolescent girls in the United States are iron deficient, according to an October 12, 1996 issue of the British medical journal The Lancet, which reported that girls who took iron supplements performed significantly better on verbal tests than those who took a placebo. "Teenage girls should be regularly tested for iron deficiency because rapid growth and the onset of menstruation during puberty increase the body's need for iron," says Ann Bruner, MD, of the Johns Hopkins Children's Center and a lead author of the study.USDA data reveal that women up to age 50 also tend to get much less than recommended levels of iron, a lack of which leads to anemia, a deficiency of red blood cells, hemoglobin or volume of blood. For kids, deficiency is more common from six months to four years and during the rapid growth spurts of adolescence when the body is growing so quickly that the body's iron stores may sink to dangerous levels. Vegetarian women run the greatest risk for deficiency, as meat is iron-rich; foods like beans, grains and vegetables also contain some iron. Supplements, of course, supply easily absorbable iron. And to absorb iron from vegetarian sources, take vitamin C with your meals. That boosts the amount of this mineral you will take in. Bear in mind, however, that certain folks-older men and post-menopausal women-generally have adequate dietary supplies of iron. Of greater concern, in fact, is excessive iron, and for these folks iron-free multivitamin and mineral supplements are available.
Ante Up the Antioxidants
Antioxidant nutrients help protect the body from oxygen-scavenging molecules called free radicals. The products of pollution, the body's own metabolic processes and other sources, free radicals are linked to heart disease, cancer and other chronic health problems. The most important antioxidants, which include vitamin C, E, beta carotene, and selenium, are often lacking in the American diet. Plus, optimal amounts of vitamin E cannot be consumed from food. You need supplements. The bottom line: even though we live in a land of plenty, you can still miss vital nutrients. So make sure to consume these vital substances.
Source of Missing Nutrients In the search for the nutrients missing from America's diet, one big help is the sprout. The sprout is truly one of nature's heavyweights: fresh, tiny and moist, its power punch of vitamins, minerals, protein, chlorophyll and disease-busting phytochemicals land it in a weight class far beyond that of its full-grown competitors. Size does NOT matter to this nutritional giant. A championship belt currently wraps around the miniscule broccoli sprout, catapulted into the ring by Paul Talalay, MD, professor of pharmacology and molecular sciences at Johns Hopkins University. Dr. Talalay discovered that the seedlings contain substantially more of the cancer-fighting substance sulforaphane than mature plants (Proc. Natnl. Acad. Sci. USA, 94, 10367-10372). Sprouts, the quintessential health food of the Sixties, provide a wonderfully varied and versatile way to get your daily greens. Raw or cooked, strong or mild, vegetable and grass sprouts and their algae cousins add low-calorie texture to recipes and a rich, diverse complement of nutrients and fiber.
Ancient Asia to the Modern Lab
Asians stir-fried sprouts as one of the earliest fast foods as long as 5,000 years ago. The ancient Chinese relied on sprouts for year-round vegetables in colder regions of their vast country. Today, researchers studying sprouts and adult plants have identified their important chemoprotective and other health-bolstering substances. In Paul Talalay's research project at Johns Hopkins, scientists found that three-day-old broccoli sprouts contain up to 50 times more sulforaphane than mature plants, which prompts the body to produce an enzyme that prevents cancer tumors from forming. Uniform levels of the compound saturate the shoots, unlike the chemically uneven adult plants. The Brassica family of broccoli and cabbage is richly endowed with phytochemicals that also help reduce estrogen levels associated with breast cancer. Other phytochemical compounds in the Brassica family are associated with the prevention of stomach and lung cancers. Most of the initial landmark work on phytochemicals' cancer-fighting powers has taken place since 1989 under the aegis of the National Cancer Institute's "Designer Food Program," which isolated, for example, the isoflavones in beans that seem to neutralize cancer-gene enzymes.
Strong Suit: Soy and Spirulina
The isoflavones and phytosterols in soy produce an estrogenic effect that appears to relieve menopausal symptoms and help prevent breast cancer. Soy foods expert Mark Messina, PhD, has done extensive work on the subject, some of which has been published in the Journal of the National Cancer Institute 83, 1991: 541-6. Researchers also have synthesized a bone-strengthening form of soy isoflavones called ipriflavone, following impressive clinical trials in the treatment of osteoporosis (American Journal of Medicine, 95 [Suppl. 5A] (1993): 69S-74S). Spirulina and other micro-algae are fascinating organisms that inhabit a niche between the plant and animals kingdoms. Named for its tiny spirals, spirulina, a blue-green algae, grows in saline lakes but is cultured for maximum nutritional content. In her book Whole Foods Companion (Chelsea Green), Dianne Onstad notes that spirulina contains "the highest sources of protein, beta carotene and nucleic acids of any animal or plant food." Its nucleic acids, she says, benefit cellular regeneration; its fatty acids, especially GLA and omega-3 acids, make it one of the most complete foods. Sprouts, like any other produce, should be rinsed thoroughly before serving. People at high risk for bacterial illness-young children, the very elderly or folks with weakened immune systems-should limit their consumption of raw sprouts. But no matter how you eat them, you may find more spring in your step from these tiny, sprouting nutritional wonders.
Cancer at the Millenium - the war on cancer entering its third decade...
June 13, 2005 10:23 AM
Cancer at the Millenium by Harriet Brown Energy Times, May 1, 1999
With the war on cancer entering its third decade, the necessity grows clearer for medical science to engage the enemy on several fronts. Until recently, high-tech medical weapons like vaccines and gene therapy, inspired by a flood of insights into the molecular basis of cancer, garnered most of the hope, hype, headlines and research money. The science was sexy and the prospect of a "cure" dramatic. But, today, advocates of prevention receive equal, if not greater, attention.
Improving our diets and prudently supplementing with vitamins and minerals, can deliver a major preventive impact. Contentious experts concede that at least a third (and probably more) of all cancers can be blamed on a combination of eating too much of the wrong foods and not enough of the right ones.
The Dietary Difference
Though cancer can progress rapidly once it leaps past its inception, it develops over many years and in several stages. Beneficial compounds in food and supplements may intervene along a line that runs from initial exposure to carcinogens to the final step into outright malignancy. Nutrients may: - counteract environmental poisons and the toxic byproducts of liver metabolism
The Big Picture The dietary guidelines advocated by the American Cancer Society and the National Cancer Institute (which generally coincide with those of most health organizations) may sound familiar: Eat plenty of fruits and vegetables. Get lots of fiber. Limit fat, especially animal fat. Go easy on meat and avoid the cured variety (they contain nitrites). If you drink alcohol, do it in moderation. Watch your total calories, and your weight. Pretty straightforward stuff.
Carotenoids, as their name suggests, are orange and red pigments in fruits and vegetables, most notably carrots and tomatoes, although they're also in everything from sweet potatoes to spinach and brussels sprouts (in the latter their distinctive color is masked by green chlorophyll).
Lycopene, a carotenoid found primarily in tomatoes, displays double the free radical-fighting activity of beta carotene, the most widely studied carotenoid. Of 72 studies looking at consumption of tomatoes or tomato-based products reviewed in the February 1999 Journal of the National Cancer Institute, almost half showed a significant reduction in one or more of a variety of cancers.
Research shows that lycopene may be best at lowering a man's risk of prostate cancer. A 1995 Harvard Medical School study (Journal of the National Cancer Institute 1995; 87: 1767-76) queried nearly 48,000 male health-care professionals about their consumption of fruits and vegetables. The only foods that reduced their risk of prostate cancer were, apparently, tomato sauce, tomatoes, pizza (tomato paste). For those who ate ten servings a week, risk dropped 45 percent; with four to seven servings, 20 percent. In animal studies lycopene decreased the number and size of mammary tumors (Eleventh International Symposium on Carotenoids, 1996).
Tomatoes are one of the richest sources of lycopene. Cooking tomatoes helps by releasing the lycopene from the plant cell walls. Also, the oil in tomato sauce enhances absorption in the stomach. Lycopene is also available in supplements.
Wine drinkers rejoiced when resveratrol, a constituent of the skin of red grapes, was found to protect their hearts (by blocking oxidation of LDL cholesterol and discouraging blood clotting). Now they have another reason to toast this potent antioxidant. When researcher John Pezzuto at the University of Illinois at Chicago screened about 1,000 plants for anticancer activity, he came up with one whose active ingredient turned out to be resveratrol. In lab tests it squelched both free radicals and inflammation, two well-known cancer inducers (Science, 6/10/97). In a study with mice, resveratrol reduced the number of skin tumors by up to 98 percent compared to control animals. Because the effective doses were high (Pezzuto estimates a person would have to quaff about five gallons of wine a day to get the equivalent) and because more than a drink or two a day may raise the risk of breast cancer, researchers don't recommend nondrinkers take up wine. But supplements of synthesized resveratrol (as well as grape juice) may help.
Saturated fat is an authentic dietary villain. Aside from clogging arteries, it's a suspected contributor to several cancers, though the evidence is greater for some cancers (prostate) than for others (breast cancer)
Of the two other main categories of fats, monounsaturated and polyunsaturated, mono seems benign, if not positively protective. For example, in a study of the influence of diet on breast cancer, Greek researchers discovered that women who consumed higher amounts of olive oil (which is mostly mono) were less likely to be afflicted with breast cancer (Journal of the National Cancer Institute 1995: 87; 110-116).
When it comes to polyunsaturated fats, however, things get complicated. The fat that predominates in corn, sunflower and other vegetable oils, called omega-6, has long been associated with cancer risk in animal experiments. Likewise the type found in margarines, trans fats, which are partially saturated vegetable oils. On the other hand, the omega-3 fats called EPA and DHA, which are found primarily in deep- and cold-water fish like cod, mackerel, and halibut, protect against both heart disease and cancer. In an epidemiological study covering 24 European countries, British researchers established that mortality rates for colon and breast cancers declined as fish and fish oil consumption rose (British Journal of Cancer 1996: 74; 159-64). And Finnish scientists discovered that the breast tissue of women who had breast cancer contained significantly less DHA and EPA than the breasts of healthy women (Nutrition and Cancer 1995: 24; 151-160).
Experts believe the omega-3s' anticancer effect derives from its ability to tamp down the prostaglandins that stimulate inflammation. Chronic inflammation unleashes a steady stream of free radicals, which can damage DNA and thereby trigger cancer. Omega-3s also help the liver detoxify potentially harmful substances.
Fortunately for the fish-phobic, nonmarine sources of omega-3 fats include flaxseed and hemp oils.
Minerals to Lower Cancer Risk
n Calcium: possibly protective against colon cancer. In a recent trial (New England Journal of Medicine, 1/14/99) researchers gave people with a history of precancerous colon polyps either two 600 mg calcium tablets a day or a placebo for nine months and found fewer polyps. n Selenium: powerful antioxidant and supporter of immunity. Researchers find that cancer rates in various regions is lowered when soil and vegetables contain more selenium
In a selenium-depleted area in China afflicted with one of the highest incidences of stomach and esophageal cancer mortality in the world, scientists asked different groups to take various combinations of nutrients. After five years they found a significant reduction in the cancer rate among those who had gotten supplements of selenium, vitamin E and beta carotene (Biological Trace Element Research 1985; 7: 21-29). In the U.S. researchers studying the potential effectiveness of selenium supplementation for preventing nonmelanoma skin cancers came up with a surprise. The 200 mcg a day the subjects received for an average of 4.5 years had no impact on skin cancer but did significantly cut the rates of lung, colorectal and prostate cancers (Journal of the American Medical Association, 12/25/96).
More recently Harvard researchers determined that men with prostate cancer had much lower levels of selenium in their toenails (a measure of consumption) than healthy men (Journal of the National Cancer Institute, 8/119/98).
Cruciferous vegetables like broccoli, brussels sprouts, cauliflower and kale, have long been singled out for their association with protection against cancer. In a 1996 survey of 94 population studies and clinical trials focusing on consumption of cruciferous vegetables, 67 percent showed a reduced risk, the strongest link being with lung, stomach, colon and rectal cancers (Cancer Epidemiological Biomarkers 1996; 5: 733-748).
Scientists at Johns Hopkins showed that sulforaphane, from these plants, stimulates enzymes that help detoxify carcinogens generated in the liver. When they injected rats with a cancer-causing chemical, only 26 percent of the rodents pretreated with sulforaphane developed mammary cancer, compared to 68 percent of controls. Even animals who did come down with cancer had tumors that appeared later and smaller.
Other researchers have focused on a cruciferous-vegetable compound called indole-3-carbinol, which has proved especially effective against breast cancer cells. Recently, scientists at the University of California at Berkeley found that indole-3-carbinol, rather than acting as an anti-estrogen, (as had been thought), actually stops breast cancer cells by turning off a protein critical to their replication (Jrnal of Bio Chem, 2/13/98). Consequently, when treating certain forms of cancer, some doctors have paired indole-3-carbinol with the chemotherapy drug tamoxifen - which counteracts estrogen - and found that the combination has proven more potent than either separately.
Several decades ago British physician Denis Burkitt proposed that the low incidence of colon cancer among native peoples in South Africa was attributable to the fact that their diet was rich in fiber. The fiber, it was hypothesized, bulked up the stool, speeding its passage through the bowel and reducing the time carcinogens contact its lining; it also helped neutralize cancer-promoting bile acids.
This concept has been backed up by numerous studies. Recently, Harvard researchers sprinkled cold water on this idea, finding that an examination of the eating habits of more than 80,000 female nurses, could find no protective effect against colon cancer or precancerous polyps from consuming fiber (NEJM, January 21, 1999). Most experts' take on this apparent refutation: Maybe the "high fiber" intake in this case wasn't high enough, and this is just one study among many.
Fighting Breast Cancer
Fiber has also been linked to reduced rates of breast cancer. At first it was thought that if fat was a breast-cancer culprit, fiber might just be a marker for a low-fat diet. But a look at Finland undermined that idea: Finnish women eat both a lot of fat and a lot of fiber, and their breast cancer rate ranks much below that in the U.S., (where we eat gobs of fat and little roughage).
Fiber helps take estrogen out of circulation as it passes through the liver, while the isoflavones in many high-fiber plants and vegetables are themselves weak estrogens, which compete for slots on breast tissue's estrogen receptors. The special fiber in flaxseed oil called lignans act against estrogen in two ways: by binding its receptors and by inhibiting the enzyme that converts other hormones into estrogen.
Fiber comes in two basic forms, insoluble (e.g., wheat bran, celery, the skins of fruits and vegetables) and soluble (e.g., oat bran, citrus fruits, beans). Until a few years ago, scientists believed that cancer protection came mainly from insoluble fiber, but that thinking has turned around.
A soluble fiber called citrus pectin has been shown to halt the tendency of prostate, lung, breast and skin cancers to metastasize, or spread (e.g., Journal of the National Cancer Institute 1995; 87: 3448-353). Typically cancer turns deadly only when it gets into the bloodstream and invades new territory. Modified citrus pectin appears to stop this aggression by preventing cancer cells from attaching to healthy tissue.
While the name inositol hexaphosphate (IP6) sounds like a mouthful, many of us consume mouthfuls of this natural substance every day - in foods like corn, rice, whole-grain cereals, oats and wheat.
But now scientists have isolated IP-6 and found that this powerful antioxidant can slow the destructive cellular processes that lead to tumors. In a study published in Anti-Cancer Research (Nov/Dec 1998), scientists at the University of Maryland School of Medicine demonstrated that IP-6 could shrink liver tumors in laboratory animals.
The researchers believe that IP-6 can help prevent cancer and also be useful in lowering the risk of health problems like kidney stones and heart disease. Research like this continues to expand our knowledge of how to lower the risk of cancer. In the next millennium, with more and more information making its way into the media and onto websites, our power and the responsibility to reduce our risk of cancer will continue to grow and offer new possibilities.
Immunity - The Big Picture
June 10, 2005 09:51 PM
Immunity: The Big Picture by Brian Amherst Energy Times, August 3, 1999
Your body wants to be well. Outfitted with a battalion of defenses for strategic deployment, your immune system explodes with resistant force at the first sign of infective invasion.
Think of the time a tiny splinter embedded itself in your thumb. By bedtime, the spot rose and reddened; by morning, white blood cells had launched their campaign, building a hot, throbbing fortification. By day's end, the bit of wood was propelled to the surface and ejected by the immune system warriors. Once again, a foreign assailant was summarily ousted.
The Protective Force
"Supporting the immune system is critical to good health. Conversely, good health is critical to supporting the immune system." So write naturopathic doctors Michael T. Murray and Joseph E. Pizzorno in their Encyclopedia of Natural Medicine (Prima).
Maintaining the immune system requires a comprehensive program of wholesome diet, resilient attitude, fitness enhancing activity and nutrients keyed to the clear and specific needs of this energetic machine.
The all-star lineup for immune sustenance: a high-potency multiple vitamin/mineral formula, vitamins C and A, bioflavonoids, isoflavones, zinc and selenium, antioxidants like ActiVin (grape seed extract) and pycnogenol (French maritime pine bark), as well as the botanicals echinacea and astragalus.
But optimal partnering with your immune system also benefits from understanding its workings.
Lymph, a milky fluid consisting of water protein and immune cells, is the essence of the immune system. Powered by muscle movement (an important reason why exercise boosts immunity), the lymphatic system collects and transports lymph to the lymph nodes. These nodes contain certain immune cells and filter out invading antigens, as well as produce antibodies, before siphoning the lymph out into the bloodstream.
If you've ever had "swollen glands," that means your lymph nodes have been in overdrive.
Macrophages are the immune cells that filter lymph, consuming bacteria and cellular debris while protecting the lymph system from invasion and damage.
The White Blood Cell Album
In Monocytes collect cellular trash after infections and can trigger immune responses; eosinophils can eliminate foreign particles and, with basophils, are involved in immune response.
In Lymphocytes include varieties of T cells, which work with other white blood cells or attack and destroy foreign tissue, cancer cells or virus-infected cells; B cells that produce antibodies that bind to bacteria, viruses or tumors; and natural killer cells (NKCs) that destroy cancerous or virally-infected cells.
(Based on information in the Encyclopedia of Natural Medicine; The Road to Immunity: How to Survive and Thrive in a Toxic World (Pocket Books) by Kenneth Bock, MD, and Nellie Sabin; and the Johns Hopkins Family Health Book (Harper Resource).
Keep the System Sound
"But you must always be sure to maintain the mind-body-spirit link," he told Energy Times. "For the mind, it could be exercise, yoga or meditation. Evidence shows improved immune system responses from these therapies. And in any case, you never read in the headlines that somebody has been admitted to the emergency room overdosing on meditation.
"Intentionality also is an important part of the mind link: believing you are going to fare well. For your spirit, you must ask yourself such questions as, Do I feel connected to others?
"For the body, a daily multivitamin and mineral supplement. Much depends on your community: I live on Long Island, where there is a high incidence of breast cancer, so I would recommend green tea and isoflavones from soy products for women."
Dr. Benjamin stresses moderation in the use of immune-intensifying supplements, among which he cites mixed carotenoids, zinc and vitamin E.
The Soy Solution
In a study conducted by the University of Southern California at Norris and published in the March 4, 1998 Journal of the National Cancer Institute, researchers reported that genistein, an active component of soy products, short-circuits the ability of tumor cells to elude destruction by the immune system due to an excess of defensive stress proteins.
Genistein seems to make cancer cells vulnerable to the immune response. Researchers at Wake Forest University told participants at the January 1999 meeting of the American Association for the Advancement of Science that dietary or supplemental soy fed to monkeys counteracted cell proliferation that is a cancer precursor.
That Championship C
Immune cells are known to accumulate and retain high levels of vitamin C. Researchers at Memorial Sloan-Kettering Cancer Center in New York now understand how that happens: Proteins called growth factors (which control growth and production of immune cells) also increase those cells' ability to take up vitamin C.
These researchers, reporting in the April 1998 issue of the journal Blood, explain that the additional glucose that the growth factors pump into immune cells (for enhanced energy), plus extra vitamin C, intensify immune response.
And folks with higher levels of vitamin C in their blood serum experience less cell damage from free radicals that leads to cancer, heart and pulmonary disease and other chronic conditions.
Scientists at the University of Buffalo (addressing the June 13, 1997 meeting of the Society for Epidemiologic Research) deduced from studying population groups that high levels of vitamin C are associated with low oxidative stress and lower risk of cell damage.
From A to Zinc
In Colostrum, the pre-milk liquid produced by mammals during the first 24 to 48 hours after birth, took the spotlight recently as a supplement imbued with multiple immune factors and natural antibiotics that augment body's immune response. A 1992 study showed that bovine colostrum might be able to reduce and prevente infections in immune deficient folks, especially those with AIDS.
In University of Pittsburgh Cancer Institute researchers found for the first time (on laboratory animals) that vitamin D appreciably inhibits widespread prostate cancer by binding to cancer cells and triggering cell death or their transformation to benign cells.
In Vitamin E exerts formidable immune-enhancing influence on both antibody and cell-mediated immunity. One fundamental study in the Journal of the American Medical Association (245, 1981: 53-58) established conclusively that vitamin E deficiency results in significant impairment of immune function. Later studies demonstrated that it reduces prostate cancer by up to one-third.
In Coenzyme A, described as a metabolic enzyme, takes part in starting numerous body processes that provide energy for the immune system. If you ever run short of this enzyme, fat processing within your body would grind to a halt.
in Researchers looking at a substance with the tongue twisting name 3-acetyl-7-oxo-Dehydroepiandro-sterone, believe it aids immunity by quelling stress hormones.
in Mushrooms contain natural substances called polysaccharides, believed to enhance immunity. In particular, maitake mushroom, which conveys the immune booster beta-D-glucans, is reputed to help fight infections and drop blood pressure.
in Men and women taking selenium supplements for 10 years had 41% less total cancer than those taking a dummy, according to a January 1997 study by Cornell University and the University of Arizona. Other studies have shown it to reduce the risk for colon cancer by about 60%. n Zinc may provide immediate protection against the all too common cold. Scientists at the University of Florida were the first to apply genetic fingerprinting methods like those used in criminal and paternity investigations to understand how nutrients directly affect human immune cells.
The study, in the April 1998 Journal of Nutrition, demonstrates that zinc signals cells to make the protein metallothionein, which protects against infections, toxins and other stressors.
Phytochemicals a la Carte
n Isoflavones from soy, fight angiogenesis, the process by which new blood vessels form to supply nutrients to cancerous growths. n sulforaphane in broccoli, kale and cabbage activates anticancer enzymes.
n Omega-3 fatty acids in cold water fish block the synthesis of prostaglandins, natural compounds in the body that promote tumor growth.
n Ginger contains antioxidant compounds, each more potent than vitamin E. Recent studies on mice show ginger can prevent skin tumors. n Rosemary contains carnosol which deactivates carcinogens and helps limit the effects of prostaglandins.
Sometimes the world can look like a dangerous place, especially when you're sick and tired much of the time. But in the search for immunity, menus of health help like this ensure that no matter what your immunity needs, a boost can be yours with the proper nutrient selection.
May 13, 2005 08:38 AM
sulforaphane Stimulates the Body's Cancer-Fighting EnzymesSecret Weapon Against Cancer Found in Broccoli Sprouts
by Richard Conant, L.Ac, C.N.
The health benefits of vegetables were known historically, long before researchers began seeing a connection between vegetable consumption and cancer prevention. Over the last twenty years, evidence concerning this connection has steadily accumulated. The latest and most promising findings reveal that specific vegetable constituents—"phytochemicals" to use current scientific parlance— enhance the body's defenses against cancer.
This article will focus on one phytochemical in particular, a sulfur-containing compound called "sulforaphane." Found in Cruciferous vegetables such as broccoli, sulforaphane may prove to be one of our most powerful cancer prevention allies. Recent studies have shown that sulforaphane stimulates, or "induces," "Phase two enzymes." These enzymes are an integral part of the body's elaborate detoxification system that renders carcinogens inactive. This detoxification system turns carcinogens and other toxic substances into harmless molecules that are excreted from the body.
We need not fear carcinogens—the body is equipped to deal with them.
These findings, coupled with an appreciation of the body's ability to defend itself against carcinogens, have the potential to dramatically change the way we look at cancer and substances in the environment that "cause" cancer. We need to minimize unnecessary exposure to carcinogens, and the staggering quantity of hazardous chemicals in the environment remains an urgent health concern, for cancer and many other health problems. But, knowing the body is equipped with the means to defend itself against toxins, we do not need to fear carcinogens as perhaps we have in the past.
The natural world is full of carcinogens.
What's more, even if you eat 100 percent organic food and live in a environment free of toxic man-made chemicals, you are still being exposed to carcinogens every day of your life. Food is the primary route of this exposure. Plants, for their own defense, produce over 99% of all the pesticides in agricultural products.1 Almost all foods—in their natural state—contain tiny amounts of naturally-occurring, potentially carcinogenic chemicals.
The point is not to trivialize the concern over environmental toxins. The point is that the natural world is full of toxins that are not man-made. These substances have been around since before we appeared, which is why we have evolved with a highly efficient system for neutralizing them before they can damage our cells and initiate the complex process that produces cancer.
Broccoli sprouts are a concentrated source of cancer-fighting sulforaphane.
We cannot avoid carcinogens. What we can do is support our internal detoxification system. sulforaphane is a powerful tool in this effort. We can start by following the often-repeated advice to eat a variety of vegetables every day, and include broccoli in our menu.
There is an even richer source of sulforaphane than broccoli itself. In September 1997, a group of scientists at the Johns Hopkins University School of Medicine made a breakthrough discovery— broccoli sprouts contain ten to one hundred times more sulforaphane than mature broccoli.2 Vegetable sprouts are generally regarded as exceptionally healthy foods. Broccoli sprouts now look like a shining star, especially when it comes to cancer prevention.
For those lacking the time or inclination to keep a fresh supply of broccoli sprouts on hand, broccoli spouts have been processed into an extract that is even more concentrated in sulforaphane. More on this later.
What have researchers learned about broccoli consumption and cancer rates?
More than 200 epidemiological studies—studies which track groups of people over time to uncover realtionships between variables such as diet and the incidence of disease—have invesitgated the connections between vegetable consumption and various forms of cancer.1 It should be understood that findings from epidemiological research are generally not regarded as conclusive; these studies are not controlled, and often use data gleaned from questionnaires, which are an imprecise method of gathering information. (In the case of diet questionnaires, for example, the study subjects may or may not record their food intakes with 100 percent accuracy.)
Epidemiological studies look for trends. To be credible, these trends need to show up consistently, in different population groups. Findings from the vegetable intake/cancer studies easily meet these criteria; the number of studies is large and the trend is consistent—vegetable consumption is strongly associated with a lower risk of developing cancer.
What about broccoli in particular? A paper published in the September 1996 issue of Cancer Epidemiology, Biomarkers & Prevention analyzes epidemiological data gathered from 94 studies concerning the cancer preventive effect of brassica vegetables.3 (The Brassica genus, part of the Cruciferae family, includes broccoli, cabbage, kale, cauliflower and brussels sprouts.) The data suggest that broccoli consumption reduces the risk of some of the most feared forms of cancer, including stomach and lung cancer.
Now, to put these data into a balanced perspective, the researchers point out that in most of the studies reviewed, brassica vegetable consumption was reported as part of the total vegetable intake. "In hardly any epidemiological studies was the effect of brassica vegetables separated from the effect of total vegetables or other vegetables by adjusting for consumption of these variables. Therefore, it is difficult to sort out whether the observed observation was attributable to brassica vegetables, to vegetables as a whole, or to other vegetables," they noted.
This uncertainty is a good example of why epidemiological studies alone do not give us open and shut conclusions. But the paper also adds that the apparent anti-cancer effect of brassica vegetables agrees with "the results of experimental studies in which brassica vegetables reduced mammary tumor incidence, hepatic tumor size, numbers of tumors per liver, tumor frequency, and the number of pulmonary metastases when given to rodents before or after a carcinogen insult."3
When you put together a plausible trend from epidemiological research with results of experimental studies that agree with the trend, and then add additional research that reveals the underlying mechanism for these observations, a clear picture begins to take shape. And, indeed, we now have a fairly good idea as to just how brassica vegetables, especially broccoli, help prevent cancer.
How sulforaphane helps prevent cancer from developing.
To see how sulforaphane works, let's look at a brief overview of the body's detoxification system.
The detoxification of carcinogens and other toxic substances takes place in the liver, and involves two distinct enzyme-driven processes or "phases". Phase one enzymes neutralize toxins by various routes. Some of these convert toxins into substances that are immediately eliminated. However, other Phase one steps convert toxins into intermediate products which are carcinogenic themselves, and require further treatment before they can be excreted. Phase two enzymes do this vital job. Phase two enzymes deactivate these carcinogenic metabolites of Phase one, and the final breakdown product is then eliminated once and for all. (For an excellent review of this subject, see Encyclopedia of Natural Medicine, by Drs. Michael Murray and Joseph Pizzorno.4)
Phase two is critical. If Phase one is in good working order, but Phase two is not, the potential threat from carcinogens increases. It is vitally important to keep Phase two operating well. This is where sulforaphane plays its cancer preventive role. sulforaphane is a powerful inducer of Phase two enzymes.5,6
Broccoli sprouts-the ideal source of sulforaphane
sulforaphane is one among a group of phytochemicals called "isothiocyanates." (These occur in brassica vegetables largely as "glucosinolates," which are precursors for isothiocyanates2,12 When the plant is crushed, glucosinolates are converted to isothiocyanates.) sulforaphane induces Phase two enzymes exclusively, leaving Phase one enzymes alone. This means it helps reduce the load of carcinogenic Phase one intermediates without adding to the load by stimulating Phase one.8,9
As reported by the Johns Hopkins University research group, broccoli sprouts are an "exceptionally" rich source of sulforaphane (in the form of "glucoraphanin, sulforaphane's glucosinolate precursor). And broccoli sprouts have another advantage over mature broccoli. They contain almost no indole glucosinolates, phytochemicals present in mature broccoli that "can enhance tumorogenesis."2
Broccoli sprouts as an extract, now available as a dietary supplement, takes the concentration of sulforaphane to the next level. This recently developed nutraceutical product contains a potent 20 to 1 extract of three-day old fresh broccoli sprouts.
One 125 mg capsule supplies the same amount of sulforaphane as 125 grams, or about 5 ounces, of mature broccoli. Taking just one capsule a day is like eating two pounds of broccoli per week, which equals the intake of cruciferous vegetables believed necessary to obtain their health benefits.
1. Steinmetz, K.A. Potter, J.D. Vegetables, fruit, and cancer prevention: A review. J Am Diet Assoc. 1996;96:1027-1039.
2. Fahey, J.W., Zhang, Y., Talalay, P. Broccoli sprouts: An exceptionally rich source of inducers of enzymes that protect against chemical carcinogens. Proc. Natl. Acad. Sci. 1997; 94:10367-10372.
3. Verhoeven, D.T.H., et. al. Epidemiological studies on brassica vegetables and cancer risk. Cancer Epidemiology, Biomarkers & Prevention 1996;5:733-48.
4. Murray, M. Pizzorno, J. Encyclopedia of Natural Medicine. Rocklin, CA: Prima Publishing;1998:110-120.
5. Zhang, Y. Talalay, P, Cho, C., Posner, G.H. A major inducer of anticarcinogenic protective enzymes from broccoli: Isolation and elucidation of structure. Proc. Natl. Acad. Sci. 1992;89:2399-2403.
6. Gerhäuser, C. et. al. Cancer chemopreventive potential of sulforamate, a novel analogue of sulforaphane that induces phase 2 drug-metabolizing enzymes. Cancer Research 1997;57:272-78.
7. McDanell, R., McLean, A.E.M., Hanley, A.B., Heaney, R.K., Fenwick, G.R. Chemical and biological properties of indole glucosinolates (glucobrassicins): A review. Fd. Chem. Toxic. 1988;26(1):59-70.
8. Talalay, P. Mechanisms of induction of enzymes that protect against chemical carcinogenesis. in Advances in Enzyme Regulation, Vol. 28, Weber, G., Ed., 1989: Pergamon Press.
9. Prochaska, H.J. Santamaria, A.B., Talalay, P. Rapid detection of enzymes that protect against carcinogens. Proc. Natl. Acad. Sci. 1992;89:2394-98.
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