Effects on anti-lipid peroxidation of Cudrania cochinchinensis var. gerontogea.
From the root bark of Cudrania cochinchinensis (Lour.) Kudo et Masamune var. gerontogea (Sieb. et Zucc.) Kudo et Masamune, 3 xanthones, cudraxanthone I, 1,3,7-trihydroxy-2-(3-methylbut-2- enyl)-xanthone, and lancerin, were further isolated and characterized. It was found that pretreatment with 600 mg/kg oral dose of the EtOH root extract of Cudrania cochinchinensis var. gerontogea in mice inhibited the lipid peroxidation stimulated by FeCl2-ascorbic acid-adenosine 5'-diphosphate (ADP) mixture. For searching bioactive constituents, the isolated xanthones from this folk medicine were investigated in anti-lipid peroxidative activities in the rat liver homogenate. The results showed that most of the tested xanthones effectively exhibited anti-lipid peroxidation stimulated by (a) FeCl2-ascorbic acid mixture or (b) CCl4-nicotinamide adenine dinucleotide phosphate (NADPH) mixture. As shown by the result, gerontoxanthone C and I were more active than vitamin E.
Chia-Nan Junior College of Pharmacy, Taiwan, ROC.
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Chang
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Lin
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Hattori
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Namba
D000818:Animals; D001205:Ascorbic Acid / Q000494:pharmacology; D066298:In Vitro Techniques; D015227:Lipid Peroxidation / Q000187:drug effects*; D008297:Male; D008516:Medicine, Chinese Traditional; D009249:NADP / Q000494:pharmacology; D010936:Plant Extracts / Q000494:pharmacology*; D010946:Plants, Medicinal; D051381:Rats; D017207:Rats, Sprague-Dawley
D010936:Plant Extracts; D009249:NADP; D001205:Ascorbic Acid