Guest guest Posted March 24, 2004 Report Share Posted March 24, 2004 Good morning ! I have a friend in the nutrition field who has recomended apricot pits . They have been found to be somewhat effective . Ellagic Acid from Meeker Raspberries has been found to be more effective .. Thanks john Houser The Nu herb shop ellagic acid (EA) and quercetin against N-nitrosodiethylamine-induced lung tumorigenesis in mice. Ellagic acid was able to significantly reduce tumour incidence to 20% from the control value of 72.2%. Similarly, tumour burden was also decreased, although not significantly, from 3.15 to 2.5. Quercetin (QR) caused the tumour incidence to decrease from 76.4% to 44.4% when fed until the third dose of carcinogen. Both of the polyphenols suppressed the tumour incidence mainly by acting at the initiation phase of the carcinogenesis, since continuing the feeding of polyphenols until the termination of the experiment did not cause any apparent change in tumour incidence or tumour burden. Besides this, ellagic acid was found to be a better chemopreventor than quercetin. In order to search for their mechanism of action, the effect of feeding of these compounds on reduced glutathione (GSH), an important endogenous antioxidant, and on lipid peroxidation was investigated. Both ellagic acid and QR caused a significant increase in GSH and decrease in NADPH- and ascorbate-dependent lipid peroxidation. Ellagic acid was found to be more effective in decreasing the lipid peroxidation and increasing the GSH. This may be one of the reasons for its observed better anticarcinogenic property as compared to quercetin. MESH TERMS: Animal Anticarcinogenic Agents/*Therapeutic Use Chemoprevention Diethylnitrosamine/*Antagonists and Inhib Ellagic Acid/*Therapeutic Use Glutathione/Metabolism Lipid Peroxidation/Drug Effects Lung Neoplasms/*Prevention and Control Male Mice Microsomes/Drug Effects/Metabolism Oxidation-Reduction Quercetin/*Therapeutic Use LANGUAGE: ENG PUBLICATION TYPE: JOURNAL ARTICLE TITLE ABBREVIATION: Food Chem Toxicol YEAR: 1999 Quote Link to comment Share on other sites More sharing options...
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