鞣花酸对小鼠酒精性肝损伤的保护作用

doi:10.13481/j.1671-587x.20150514

吉林大学学报(医学版) ›› 2015, Vol. 41 ›› Issue (05): 956-960.doi: 10.13481/j.1671-587x.20150514

鞣花酸对小鼠酒精性肝损伤的保护作用

杨丽娜, 乔楠, 胡敏予, 陈继华, 林茜, 周光宇, 魏薇, 朱柳凤

中南大学公共卫生学院营养与食品卫生学教研室, 湖南长沙 410078

收稿日期:2015-01-15 出版日期:2015-09-28 发布日期:2015-09-29
通讯作者: 杨丽娜,副教授,硕士研究生导师(Tel:0731-84805464,E-mail:ylnly1997@csu.edu.cn) E-mail:ylnly1997@csu.edu.cn
作者简介:杨丽娜(1978-),女,河北省邢台市人,副教授,医学博士,主要从事植物化学物与慢性疾病防治方面的研究。
基金资助:
湖南省科技厅自然科学基金资助课题(11JJ6091);中南大学自由探索计划项目资助课题(2011QNZT132)

Protective effect of ellagic acid on alcoholic liver injury in mice

YANG Lina, QIAO Nan, HU Minyu, CHEN Jihua, LIN Qian, ZHOU Guangyu, WEI Wei, ZHU Liufeng

Department of Nutrition and Food Higiene, School of Public Health, Central South University, Changsha 410078, China

Received:2015-01-15 Online:2015-09-28 Published:2015-09-29

摘要/Abstract

摘要：

目的:观察鞣花酸对小鼠酒精性肝损伤的保护作用,并探讨其作用机制。方法: 50只昆明小鼠随机分为空白对照组,肝损伤模型组和低、中、高剂量鞣花酸组,每组10只。空白对照组和肝损伤模型组小鼠给予羧甲基纤维素钠溶剂灌胃,不同剂量鞣花酸组小鼠分别以160、320和480 mg·kg^-1鞣花酸灌胃,连续15 d。末次灌胃后,空白对照组小鼠灌胃等量蒸馏水,其余组小鼠均灌胃50%乙醇12 mL·kg^-1,禁食不禁水,16 h后各组小鼠眼球取血,处死,取小鼠肝脏组织和血清。计算各组小鼠肝脏系数;测定小鼠血清丙氨酸氨基转移酶(ALT)、天门冬氨酸氨基转移酶(AST)活性和甘油三酯(TG)水平;测定小鼠肝组织中超氧化物歧化酶(SOD)、谷胱甘肽(GSH)活性和丙二醛(MDA)水平。结果:与空白对照组比较,肝损伤模型组小鼠肝脏系数、血清ALT和AST活性及TG水平明显升高(P<0.05或P<0.01),肝组织中SOD和GSH活性及MDA水平明显降低(P<0.05或P<0.01);与肝损伤模型组比较,低、中和高剂量鞣花酸组小鼠肝脏系数、血清ALT和AST活性明显降低(P<0.05或P<0.01),肝组织中SOD活性明显升高(P<0.05或P<0.01),MDA水平明显降低(P<0.01);中和高剂量鞣花酸组小鼠肝组织GSH活性明显升高(P<0.01);高剂量鞣花酸组小鼠血清TG水平明显降低(P<0.05)。结论:鞣花酸对小鼠酒精性肝损伤具有保护作用,以480 mg·kg^-1剂量时作用最为明显;鞣花酸可能通过抗氧化作用实现其对肝细胞损伤的保护作用。

关键词: 鞣花酸, 酒精, 肝损伤, 抗氧化, 自由基

Abstract:

Objective To investigate the protecive effects of ellagic acid on alcoholic liver injury in the mice,and to explore its mechanisms. Methods 50 KM mice were randomly divided into control group,model group,low,medium and high doses of ellagic acid groups (n=10). The mice in control group and model group were intragastricly administed with sodium carboxymethyl cellulose solvent;the mice in ellagic acid groups were administed with 160,320 and 480 mg·kg^-1 ellagic acid daily,respectively.After administrated for 15 d,the liver injury model was induced with 12 mL·kg^-1 50% ethanol.16 h later,all the mice were taken blood from the eyes and killed,and the activities of serum aspartate aminotransferase (AST),alanine aminotransferase (ALT), and triglycerides (TG) levels in serum and activities of liver superoxide dismutase (SOD), glutathione peroxidase(GSH) were determined as well as liver malondialdehyde (MDA) levels in liver tissue. Results Compared with control group,the liver index,the activities of ALT,AST,and the level of TG in serum and the level of MDA in liver tissue of the mice were significantly increased(P<0.05 or P<0.01),and the activities of SOD and GSH in liver tissue were significantly decreased in model group(P<0.05 or P<0.01). Compared with model group,the liver index,the activities of ALT,AST in serum and the level of MDA in liver tissue of the mice were significantly decreased,the activities of SOD in liver tissue were significantly increased in low,medium and high doses of ellagic acid groups(P<0.05 or P<0.01), and the activities of GSH in liver tissue were significantly increased in medium and high dose of ellagic acid groups(P<0.01),and the level of TG in serum were significantly decreased in high dose of ellagic acid group(P<0.05). Conclusion Ellagic acid has the protective effect on alcoholic liver injury in the mice and the most effective dose is 480 mg·kg^-1.

Key words: ellagic acid, alcoholic, liver injury, antioxidant, free radicals

中图分类号:

R931.71

杨丽娜, 乔楠, 胡敏予, 陈继华, 林茜, 周光宇, 魏薇, 朱柳凤. 鞣花酸对小鼠酒精性肝损伤的保护作用[J]. 吉林大学学报(医学版), 2015, 41(05): 956-960.

YANG Lina, QIAO Nan, HU Minyu, CHEN Jihua, LIN Qian, ZHOU Guangyu, WEI Wei, ZHU Liufeng. Protective effect of ellagic acid on alcoholic liver injury in mice[J]. Journal of Jilin University Medicine Edition, 2015, 41(05): 956-960.

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鞣花酸对小鼠酒精性肝损伤的保护作用

Protective effect of ellagic acid on alcoholic liver injury in mice

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