This product is isolated and purified from the herbs of Catharanthus roseus
Effect of squalene on tissue defense system in isoproterenol-induced myocardial infarction in rats.[Pubmed: 15225664 ]Chemopreventive effect of squalene on colon cancer.[Pubmed: 9498278]Carcinogenesis. 1998 Feb;19(2):287-90. Epidemiologic and laboratory studies suggest a cancer protective effect and/or lack of a tumor promoting effect by dietary olive oil as compared with other types of non-marine oils. Squalene, a constituent of olive oil, and a key intermediate in cholesterol synthesis may be regarded as partially responsible for the beneficial effects of olive oil, which include decreased mortality rates among populations with high olive oil consumption. METHODS AND RESULTS:Thus, in this study we have assessed the chemopreventive efficacy of Squalene on azoxymethane (AOM)-induced colonic aberrant crypt foci (ACF). In addition, we measured the effect of Squalene on serum cholesterol levels in the rats. Male F34 rats (5 weeks old) were fed the control diet (modified AIN-76A) or experimental diets containing 1% Squalene or 320 p.p.m. sulindac. Two weeks later, all animals except those in vehicle (normal saline)-treated groups were s.c. injected with AOM (15 mg/kg body wt, once weekly for 2 weeks). At 16 weeks of age, all rats were killed, colons were evaluated for ACF and serum was assayed for the cholesterol levels. As expected, dietary administration of sulindac suppressed ACF development and reduced crypt multiplicity, i.e. number of aberrant crypts/focus. Administration of dietary Squalene inhibited total ACF induction and crypt multiplicity by approximately >46% (P < 0.001). Further, Squalene at a level of 1% did not show any significant effect on serum cholesterol levels. CONCLUSIONS:Our finding that Squalene significantly suppresses colonic ACF formation and crypt multiplicity strengthens the hypothesis that Squalene possesses chemopreventive activity against colon carcinogenesis.Pharmacol Res. 2004 Sep;50(3):231-6. This study was designed to examine the effects of Squalene on tissue antioxidant status in isoproterenol-induced myocardial infarction in male albino rats. METHODS AND RESULTS:Levels of diagnostic marker enzymes [alanine aminotransferase (ALT), aspartate aminotransferase (AST), lactate dehydrogenase (LDH), and creatine phosphokinase (CPK)] in plasma, lipid peroxides, reduced glutathione, and the activities of glutathione-dependent antioxidant enzymes [glutathione peroxidase (GPx) and glutathione-S-transferase (GST)] and antiperoxidative enzymes [catalase (CAT) and superoxide dismutase (SOD)] in the heart tissue of experimental groups of rats were determined. The prior administration of Squalene at 2% level along with feed for 45 days significantly prevented the isoproterenol-induced elevation in the levels of diagnostic marker enzymes in plasma of experimental rats. Squalene also exerted an antioxidant effect against isoproterenol-induced myocardial infarction by blocking the induction of lipid peroxidation. A tendency to prevent the isoproterenol-induced alterations in the level of reduced glutathione and in the activities of glutathione-dependent antioxidant enzymes and antiperoxidative enzymes was also observed.CONCLUSIONS: The cardioprotective effect of Squalene might be ascribable to its antioxidant property and membrane stabilizing action.
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