Guest guest Posted February 28, 2007 Report Share Posted February 28, 2007 drmikethompson(Dr. T's Health Tips) A chemical in vegetables such as broccoli, cauliflower and cabbage, as well as another one found in soy, can increase DNA repair in cells. This could prevent them from becoming cancerous. Links have already been established between eating certain vegetables and a reduction in cancer risk. These findings suggest a mechanism for why that might be the case. Vegetables such as broccoli contain a compound called I3C, and one called genistein is present in soy beans. These two chemicals increase the amount of BRCA proteins present in cells. These proteins prevent damaged genetic material from being passed from one generation of cells to the next. Cancer cells typically contain low amounts of BRCA proteins, and faulty BRCA signaling heightens one's risk of some cancers, including prostate, breast and ovarian. British Journal of Cancer February 13, 2006; 94(3): 407-426 http://clicks.aweber.com/z/ct/?D0VmFyXLYZ283yJq10fu8A BBC News February 7, 2006 http://clicks.aweber.com/z/ct/?18SHWChp2IN5onErQmpBaQ In recent years, medical researchers have been battling a top killer of women -- breast cancer. One study may have found answer in a component of broccoli. Indole-3-carbino, which is found in broccoli, interferes with the breast cancer cell's life cycle in a way that hints at a totally new signaling pathway in the cell. The chemical seems to be working by a very unusual mechanism. It turns off a gene for an enzyme important in the cell's growth cycle. The chemical Indole-3-carbino (I3C) is a component of broccoli and other members of the Brassica family, such as brussels sprouts, bok choy, kale, chard and turnips. I3C has low toxicity but seems to be very effective in fighting breast cancer cells. According to the study, it is an effective agent at blocking tumorigenesis in rats. When fed to them, I3C can block 95 percent of all breast cancers in rats. The compound also works independently of the hormone estrogen, unlike breast cancer treatment drugs like Tamoxifen. I3C would be a good candidate for use in combination therapy with drugs that do interfere with estrogen. In fact, research shows that I3C does not act on estrogen at all. Instead the chemical actually stops the cell cycle. When I3C reacts with stomach acid, the byproducts are the ones responsible for the anti-estrogen and certain toxic effects of the broccoli compounds. I3C initiates a sudden drop in the generation of the enzyme CDK6, or cyclin-dependent kinase 6. Nutrition and Cancer 2004;48(1):84-94 Bad news for those who can't stomach broccoli: New research suggests that broccoli is especially good for the stomach. A compound found in broccoli and broccoli sprouts appears to be more effective than modern antibiotics against the bacteria that cause peptic ulcers. Moreover, tests in mice suggest the compound offers formidable protection against stomach cancer -- the second most common form of cancer worldwide. If upcoming human tests confirm the findings, a daily snack of tangy broccoli sprouts could become a medically indicated staple -- especially in Asia, where the ulcer bacteria and stomach cancer occur in epidemic proportions. The new work, led by scientists at Johns Hopkins University, is the latest in a 10-year series of studies on the cancer-fighting potential of broccoli. It started in 1992, when Hopkins pharmacology professor Paul Talalay and his colleagues showed that sulforaphane -- a substance produced in the body from a compound in broccoli -- could trigger the production of phase II enzymes. The enzymes can detoxify cancer-causing chemicals and are among the most potent anti-cancer compounds known. Scientists had known for years that cancer is less common in people who eat more vegetables, but the broccoli studies were among the first to point to a particular chemical that might account for much of that protection. Subsequent studies found that sulforaphane could prevent the development of breast and colon cancer, as well as other tumors, in mice. Then Talalay's team found that the key protective compound in broccoli (a chemical called glucoraphanin, which the body turns into sulforaphane) is at least 20 times more concentrated in three-day-old broccoli sprouts than it is in broccoli. A single ounce of sprouts has as much glucoraphanin as a pound and a quarter of cooked broccoli, offering a simpler -- and less flatulent -- means of consuming potentially healthful quantities of the protective agent. Talalay and co-worker Jed W. Fahey founded a company to make the sprouts for grocery stores. So it was as economic stakeholders (limited under Johns Hopkins's conflict-of-interest rules) that they and their collaborators began testing the effects of sulforaphane on the bacterium Helicobacter pylori. The microbe, found globally but especially in Asia, causes ulcers and increases a person's risk of getting gastric cancer threefold to sixfold. Fahey said the study arose after he learned that two employees at a broccoli sprout facility with longstanding ulcers had apparently been cured after they took up snacking on the sprouts. Working with researchers from the National Scientific Research Center in Nancy, France, the team found that sulforaphane easily kills H. pylori, a microbe that is notoriously difficult to eradicate even with combinations of two or three antibiotics. In test tube studies, it even killed H. pylori that had burrowed inside human stomach lining cells, as the microbe often does to escape attack. In separate studies involving mice that were dosed with a chemical known to cause stomach cancer, mice pre-treated with sulforaphane had 39 percent fewer tumors. The findings, published in today's online edition of Proceedings of the National Academy of Sciences, doesn't mean broccoli can cure ulcers or prevent stomach cancer in people. " One question is, would you have to eat a ton of broccoli a day to get enough of this to be effective? " said Frank Gonzalez, a scientist at the National Cancer Institute. But Fahey said he is optimistic. " The levels that are effective [in test tubes] are levels that could be achieved by eating a serving or so of broccoli sprouts, based on the chemistry we know, " Fahey said. " This isn't one of those rat studies in which you need 400 times the maximum amount a human could handle. " Talalay said the group is preparing to start a clinical trial in Japan to test the sprouts' effectiveness in people infected with H. pylori. About 80 percent of Japanese adults harbor the microbe in their stomachs -- one reason that gastric cancer is the No. 1 cancer killer in Japanese women and No. 2 after lung cancer in Japanese men. The microbe is similarly common and deadly in many parts of the world where antibiotics are unavailable or unaffordable, Talalay said. " Gratifyingly, this is a dietary approach, " he said, " which is the only approach feasible or practical if you want to knock down the incidence of this very serious disease in the parts of the world where it is most prevalent. " Proceedings of the National Academy of Sciences May 2002:28;99(11):7610-7615 Washington Post May 28, 2002; Page A04 ***************************************** Broccoli sprouts sure seem like an inexpensive alternative to eating the whole vegetable. Broccoli sprouts are now being grown commercially. That has not always been the case. I suggest that you consider growing them. Although you can purchase the seeds in a store, growing them yourself is easy and less expensive. You can purchase organic brocolli seeds from Johnny's (207) 861-3901. Reference item #148, four ounces are $9.00, or a pound for $26.15. For sprouting instructions call Jaffe Brothers at (619) 749-1133. Your local library or health food store may also have some instructions on sprouting seeds. The other major benefit is that the sprouts don't smell as you don't have to cook them. They are eaten raw, usually as an addition to salad. Surely there are similar benefits for many of the other vegetables when eaten as sprouts. I sure hope that you will include broccoli in your list of foods to eat regularly. I would say raw or lightly steamed would be the best way to go about it. Until next time... In Service, Dr. Mike www.BioTruth.com The Doctor of the Future will give NO Medicine, but will interest his patients in diet and nutrition, exercise and the care of the human frame. He will teach them about the cause of ALL disease. -Thomas Edison ************************************** Health Solutions, P.O. Box 121271 Arlington, TX. 76012, USA Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You are posting as a guest. If you have an account, sign in now to post with your account.
Note: Your post will require moderator approval before it will be visible.