Tuesday, June 22, 2010
Wednesday, February 18, 2009
The continued research of Resveratrol
60 Minutes had done a story on this year ago with Barbara Walters.
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Resveratrol: Cutting-Edge Technology Available Today |
Cancers Inhibited by Resveratrol According to Published Research† |
| Colon; Neuroblastoma; Esophageal; Breast (all types); Prostate (all types); Leukemia (various types); Metastasis to bone; Skin; Pancreas; Ovarian; Melanoma; Liver; Lung; Stomach; Oral; Cervical; Lymphoma (various types); Thyroid In rodents and/or cell culture |
Resveratrol’s ability to activate the gene has to do with its chemical structure, not its antioxidant potential. It works by increasing the rate of a reaction known as “deacetylation.” Acetylation reactions affect whether a gene is “off” or “on.” This is extremely important. In cancer cells, for example, genes are activated that aren’t supposed to be, and vice versa. By controlling deacetylation, and augmenting the longevity gene, resveratrol is able to confer some serious life extension benefits—at least in lower critters. And, yes, acetylation modulators are being pursued for the treatment of cancer to restore the normal activation/deactivation of genes in cancer cells.*
One of the known causes of aging and death is that older cells lose their ability to perfectly replicate DNA in every new cell. DNA “mistakes” accumulate and allow little pieces of DNA to become active and print themselves out, so to speak, creating a type of “DNA debris” that eventually stops a cell from functioning. It is similar to printing out a report and having a couple of pages at the end not contain any relevant information—so you throw them away. The cell can’t throw away the extra “printed out” DNA; it accumulates and clogs up the cell. This build up of “debris” is connected to aging, and the death of individual cells. Resveratrol reduces the frequency of “DNA debris” by 60% through the longevity gene that it stimulates.*
How Much Resveratrol Is In Wine
In order to understand how much resveratrol is in wine, one must realize that resveratrol is a natural substance made by grapes and other plants in response to fungal infection. How much resveratrol is in a glass of wine depends, first, on whether the grapes were grown organically, and, second, how the wine was made. Grapes sprayed with pesticides that prevent fungal infection contain little, if any, resveratrol. Wines grown in dry climates have less resveratrol than those grown in humid areas. Red wines contain more than white because of how red wine is made. The end result of all of this is that organic red wines from certain areas of
The only sure way to obtain a certain amount of resveratrol daily is to take a standardized extract. Standardization ensures a consistent amount of resveratrol with consistent high quality. The finest resveratrol available comes from
The Hidden Dangers of Alcohol
Although red wine has been shown to confer some benefits, it must be noted that excessive consumption of alcohol can be dangerous to one’s health.
Alcohol is the most socially acceptable addictive drug that has life-threatening health hazards. Alcohol consumption is so ubiquitous that people often don’t realize how dangerous it can be.
Alcohol is a proven carcinogen, and those who drink have significantly higher rates of brain, esophageal, liver, breast, and other cancers.[32] About one-third of heavy drinkers develop peripheral neuropathy.[33]*
Most people associate drinking alcohol with liver cirrhosis. Mortality statistics, however, show that increased cancer risk may be the real concern.*
Smokers generally know that smoking is hazardous to their health. Yet most people are not aware of how dangerous alcohol is from a statistical standpoint. Epidemiological studies show lower heart attack rates amongst those who regularly consume moderate amounts of alcohol. Yet those same benefits—and more—may be obtained with polyphenols such as resveratrol, EGCG (epigallocatechin gallate) from green tea and aspirin.*
Summary
The research on resveratrol is so voluminous that it’s not possible to cover it in one article. In addition to the benefits mentioned previously, resveratrol has been tested for its ability to stop pain,[34] stop the growth of the bacteria that causes stomach ulcers that can lead to cancer (Helicobacter pylori),[35] protect immune cells,[36] protect DNA,[37] protect against skin cancer,[38] and many other conditions. As pointed out earlier, recently resveratrol became the first-ever supplement known to activate a longevity gene.
While it is important to point out that a lot of the research on this wine extract has been done only in test tubes or rodents, the sheer volume suggests that resveratrol is one of the most versatile and effective plant compounds discovered so far. Resveratrol represents a novel solution to many common problems encountered by aging humans.
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Effects of resveratrol on secondary damages after acute spinal cord injury in rats. Acta. Pharmacol. Sin. 2003; 24:703-10. 13. Sinha, K. et al. Protective effect of resveratrol against oxidative stress in middle cerebral artery occlusion model of stroke in rats. Life Sci. 2002;71:655-65. 14. Cal, C. et al. Resveratrol and cancer: chemoprevention, apoptosis, and chemoimmunosensitizing activities. Curr. Med. Chem-Anti-Cancer Agents 2003;3:77-93. 15. Pervaiz, S. Resveratrol–from the bottle to the bedside? Leuk. Lymphoma 2001;40:491-8. 16. Ding, X.Z. et al. Resveratrol inhibits proliferation and induces apoptosis in human pancreatic cancer cells. Pancreas 2002;25:e71-e76. 17. Gusman, J. et al. A reappraisal of the potential chemopreventive and chemotherapeutic properties of resveratrol. Carcinogenesis 2001;22:1111-17. 18. Lu, R. et al. Resveratrol, a natural product derived from grape, exhibits antiestrogenic activity and inhibits the growth of human breast cancer cells. J. Cell. Physiol. 1999;179:297-304. 19. Serrero, G. et al. Effect of resveratrol on the expression of autocrine growth modulators in human breast cancer cells. Antioxid. Redox. Signal 2001;3:969-79. 20. Mitchell, S.H. et al. Resveratrol inhibits the expression and function of the androgen receptor in LNCaP prostate cancer cells. Cancer Res. 1999;59:5892-5. 21. Narayanan, B.A. et al. Interactive gene expression pattern in prostate cancer cells exposed to phenolic antioxidants. Life Sci. 2002;70:1821-39. 22. Pozo-Guisado, E. et al. The antiproliferative activity of resveratrol results in apoptosis in MCF-7 but not in MDA-MB-231 human breast cancer cells: cell-specific alteration of the cell cycle. Biochem. Pharmacol. 2002;64:1375-86. 23. Wietzke, J.A. et al. Phytoestrogen regulation of a vitamin D3 receptor promoter and 1.25-dihydroxyvitamin D3 actions in human breast cancer cells. J. Steroid Biochem. Mol. Biol. 2003; 84:149-57. 24. Ulsperger, E. et al. Resveratrol pretreatment desensitizes AHTO-7 human osteoblasts to growth stimulation in response to carcinoma cell supernatants. Int. J. Oncol. 1999;15:955-59. 25. Lipkin, M. et al. Dietary factors in human colorectal cancer. Annu. Rev. Nutr. 1999;19:545-86. 26. Nakagawa, H. et al. Resveratrol inhibits human breast cancer cell growth and may mitigate the effect of linoleic acid, a potent breast cancer cell stimulator. J. Cancer Res. Clin. Oncol. 2001;127:258-64. 27. Zhuang, H. et al. Potential mechanism by which resveratrol, a red wine constituent, protects neurons. 28. Floreani, M. et al. Oral administration of trans-resveratrol to guinea pigs increases cardiac DT-diaphorase and catalase activities, and protects isolated atria from menadione toxicity. Life Sci. 2003;72:2741-50. 29. 30. 31. Hsieh, T.C. et al. Cell cycle effects and control of gene expression by resveratrol in human breast carcinoma cell lines with different metastatic potentials. Int. J. Oncol. 1999;15:245-52. 32. Bagnardi V. et al. A meta-analysis of alcohol drinking and cancer risk. BR. J. Cancer. 2001;85:1700-1705. 33. Agelink, M.W. et al. Alcoholism, Peripheral neuropathy (PNP) and cardiovascular autonomic neuropathy (CAN). J. neurol. Sci. 1998 Dec 11;161(2):135-42. 34. Torres-Lopez, J.E. et al. Comparison of the antinociceptive effect of celecoxib, diclofenac and resveratrol in the formalin test. Life Sci. 2002;70:1669-76. 35. Mahady, G.B. et al. Resveratrol and red wine extracts inhibit the growth of CagA+ strains of Helicobacter pylori in vitro. Am. J. Gastroenterol. 2003;98:1440-1. 36. Yen, G.C. et al. Effects of resveratrol and 4-hexylresorcinol on hydrogen peroxide-induced oxidative DNA damage in human lymphocytes. Free Radic. Res. 2003;37:509-14. 37. Revel, A. et al. Resveratrol, a natural aryl hydrocarbon receptor antagonist, protects lung from DNA damage and apoptosis caused by benzo[a]pyrene. J. Appl. Toxicol. 2003;23:255-61. 38. Adhami, V.M. et al. Suppression of ultraviolet B exposure-mediated activation of NF-kappaB in normal human keratinocytes by resveratrol. Neoplasia 2003;5:74-82 |
