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Plant triterpenes, such as oleanolic acid and betulin were described as hepatoprotectants active against cytotoxicity of acetaminophen or cadmium. The aim of this paper is to compare the cytoprotective activity of betulin, betulinic acid and oleanolic acid against ethanol-induced cytotoxicity in HepG2 cells. The influence of three triterpenes on ethanol-induced production of superoxide anion and hydrogen peroxide was also examined. Among the examined triterpenes, betulin was the most activepmid:16227641 fatcat:2bhb42mamrbqdbtqokhrfzsa3y