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Biological and Pharmaceutical Bulletin
Vol. 17 (1994) No. 2 P 251-256



A number of hydroxychalcones were synthesized to evaluate their protective effects against oxidative cell damage and the production of superoxide anion. The hydroxychalcones which have a 3, 4-dihydroxycinnamoyl structure were potent inhibitors of lipid peroxidation in rat liver microsomes. In particular, we found that 2', 4', 3, 4-tetrahydroxychalcone (3) exhibited a potent inhibitory effect on H2O2-induced hemolysis due to an antioxidant effect. In addition, this compound strongly inhibited CCl4-induced cytotoxicity in primary cultured hepatocytes and substantially decreased the production of superoxide anion by rat peritoneal exudate macrophages.

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