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首页> 中文期刊> 《世界肝病学杂志：英文版（电子版）》 >Anti-inflammatory and anti-oxidant effects of aloe vera in rats with non-alcoholic steatohepatitis

Anti-inflammatory and anti-oxidant effects of aloe vera in rats with non-alcoholic steatohepatitis

         
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BACKGROUND Aloe vera exerts several biological activities,such as,anti-inflammatory,antioxidant,and antimicrobial effects.It was recently shown to reduce insulin resistance and triglyceride level.We hypothesized that aloe vera would have beneficial effects in alleviating non-alcoholic steatohepatitis(NASH)in rats.AIM To examine the therapeutic effects of aloe vera in NASH rats.METHODS All rats were randomly divided into 3 groups(n=6 in each group).Rats in the control group were fed ad libitum with a standard diet for 8 wk.Rats in the NASH group were fed ad libitum with a high-fat high-fructose diet(HFHFD)for 8 wk.Rats in the aloe vera group were fed ad libitum with a HFHFD and aloe vera in dimethylsulfoxide(50 mg/kg)by gavage daily for 8 wk.Liver samples were collected at the end of the treatment period.RESULTS Hepatic malondialdehyde(MDA)levels increased significantly in the NASH group as compared with the control group(377±77 nmol/mg vs 129±51 nmol/mg protein,respectively,P<0.001).Glutathione(GSH)levels were significantly lower in the NASH group than the control group(9±2 nmol/mg vs 24±8 nmol/mg protein,respectively,P=0.001).The expression of interleukin-18 (IL-18), nuclear factor-kappa β, and caspase-3 increased, while peroxisomeproliferator-activated receptor gamma decreased in the NASH group comparedwith the controls. Following aloe vera administration, MDA levels decreased (199± 35 nmol/mg protein) and GSH increased (18 ± 4 nmol/mg protein) markedly.Steatosis, hepatocyte ballooning, lobular inflammation and increased hepatocyteapoptosis were observed in the NASH group. Aloe vera treatment attenuatedthese changes in liver histology.CONCLUSIONAloe vera attenuated oxidative stress, hepatic inflammation and hepatocyteapoptosis, thus improving liver pathology in rats with NASH.

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