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| VITAMIN E STUDIES |
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VITAMIN E IMPROVES IMMUNITY IN THE ELDERLY Vitamin E taken at 800 IU per day improves the immune functioning of elderly people who are neither deficient nor sick. Vitamin E reduces the levels of prostaglandin E2 (a hormone-like substance that impairs immunity) and increases interleukin 2 (one of the immune system's major weapons against invasion) (American Journal of Clinical Nutrition 1990; 52:557
MORE GOOD NEWS ABOUT VITAMIN E Several cell-culture experiments have shown that vitamin E succinate halts the growth of cancerous cells, including breast cancer cells. This form of vitamin E seems to halt cancer cell proliferation by protecting "transforming growth factor-b" that regulates cell growth. (Charpentier, A, Simmons-Menchaca, M. et al. "RRR-a-tocopheryl succinate enhances TGF-bl, -b2, and b3 TFG-bR-II expression by human MDA-MB-435 breast cancer cells." Nutrition & Cancer, 26:237-50,1996).
But vitamin E succinate works in other ways as well. In a recent paper, researchers from NCI reported that vitamin E succinate prompts apoptosis (programed cell death) in breast cancer cells. "An advantage for using Vitamin E and/or Vitamin E derivatives in human cancer therapy is its low level of toxicity . . ." Of course, cell-culture studies are a long way from human trials. But Gerald Shklar, D.D.S, of the Harvard University Dental School, has taken the next step. He used a toxic chemical to induce oral cancer in hamsters, then fed them Vitamin E succinate. The Vitamin E prevented cancer growth, and its mechanism was particularly surprising. It inhibited angiogensis (the growth of tumor-feeding blood vessels), thus suggesting yet another way vitamin E may help treat breast cancer. (Shklar, G., & Schwartz, J.L. "Vitamin E inhibits experimental carcinogenesis and tumour angiogenesis."Oral Oncology, European Journal of Cancer, 32B:114-19, 1996.) Jack Chalem, Nutrition Science News, August 1997, page 391 Vol.2, Issue 8 |
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