1.Ethanol extract of Phellinus merrillii protects against diethylnitrosamine- and 2-acetylaminofluorene-induced hepatocarcinogenesis in rats.
Chun-Hung YANG ; Heng-Yuan CHANG ; Yi-Chuan CHEN ; Chia-Chen LU ; Shyh-Shyun HUANG ; Guan-Jhong HUANG ; Hsin-Chih LAI
Chinese journal of integrative medicine 2017;23(2):117-124
OBJECTIVETo study whether the ethanol extract of Phellinus merrillii (EPM) has chemopreventive potential against liver carcinogenesis.
METHODSThirty male Spraque-Dawley rats were randomly divided into control group, EPM control group, hepatocarcinoma control group, low-dose EPM group and high-dose EPM group, 6 in each group. Using the Solt and Farber protocol in a rat model of hepatocarcinogenesis, the chemopreventive effect of EPM on diethylnitrosamine (DEN)-initiated, 2-acetylaminofluorene (2-AAF) and partial hepatectomy (PH)-promoted liver carcinogenesis in rats was evaluated. Basic pathophysiological and histological examinations, together with the serum levels of glutamic oxaloacetic transaminase (sGOT), glutamic pyruvic transaminase (sGPT) and gamma-glutamyl transpeptidase (γ-GT) were measured.
RESULTSTreatment of EPM at the concentration of 2 g/kg body weight in the diet for 8 weeks clearly prevented the development of carcinogenesis and reduced the levels of sGOT, sGPT, and serum γ-GT of rats as compared with the hepatocarcinoma control group (P<0.05 or P<0.01). These phenotypes were accompanied by a significant increase in natural killer cell activity.
CONCLUSIONEPM showed a strong liver preventive effect against DEN+2-AAF+PH-induced hepatocarcinogenesis in a rat model.
2-Acetylaminofluorene ; Animals ; Basidiomycota ; chemistry ; Carcinogenesis ; chemically induced ; Cytoprotection ; drug effects ; Diethylnitrosamine ; Ethanol ; chemistry ; Liver Neoplasms, Experimental ; chemically induced ; prevention & control ; Male ; Plant Extracts ; chemistry ; pharmacology ; Protective Agents ; pharmacology ; Rats ; Rats, Sprague-Dawley