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. 2001 Jun;39(6):557-61.
doi: 10.1016/s0278-6915(00)00175-7.

Hepatocarcinogenesis inhibition by caffeine in ACI rats treated with 2-acetylaminofluorene

S Hosaka  1 , S Kawa, Y Aoki, E Tanaka, K Yoshizawa, Y Karasawa, N Hosaka, K Kiyosawa
Affiliations

Hepatocarcinogenesis inhibition by caffeine in ACI rats treated with 2-acetylaminofluorene

S Hosaka et al. Food Chem Toxicol. 2001 Jun.

Abstract

The inhibitory effects of caffeine have been demonstrated on the development of various organs in animals. The purpose of the present study was to examine the inhibitory effect of caffeine on hepatocarcinogenesis and to determine the responsive dose of caffeine on hepatocarcinogenesis in young male ACI rats. Animals given a diet containing 2-acetylaminofluorene (2-AAF) for 12 weeks and then a basal diet and tap water containing caffeine for 18 weeks showed statistically significant decreases in the incidence, multiplicity (the number of hepatic tumors per rat) and histological grade compared with rats fed a diet containing carcinogen for 12 weeks followed by tap water alone. Dose-dependent inhibition of hepatocarcinogenesis by caffeine was also seen. The inhibitory effect of caffeine on hepatocarcinogenesis in rats was found when caffeine was administered during the initiation phase.

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