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作 者:蒋艳明[1] 陆璐[2] 钱建成[2] 昂健[3] 田静[4] 荀运浩[4] 施军平[1]
机构地区:[1]杭州师范大学附属医院,浙江杭州310015 [2]浙江中医药大学,浙江杭州310053 [3]浙江大学医学院附属第二医院,浙江杭州310009 [4]浙江中医药大学附属杭州第六医院,浙江杭州310014
出 处:《中华中医药学刊》2012年第9期2066-2068,I0004,共4页Chinese Archives of Traditional Chinese Medicine
基 金:浙江省中医药计划科技项目(2008JA009);杭州市科技计划项目(2006533Q13)
摘 要:目的:研究氧化应激对高脂高糖饮食诱导的NASH大鼠肝脏损伤的作用,观察复方楂金颗粒剂对NASH的治疗作用,探讨其作用机制。方法:以高脂高糖饮食喂养10周建立NASH大鼠模型,分别以4.032mg.kg-1.d-1、2.016mg.kg-1.d-1、1.008mg.kg-1.d-1的CPZD和69.2mg.kg-1.d-1的易善复进行治疗10周后,观察肝组织病理变化,血清和肝组织MDA含量以及SOD、GSH-PX活性。结果:与正常组相比,模型组大鼠肝脂肪变性、NAFLD活动度积分(NAS)均明显升高(P<0.05),肝组织SOD、GSH-PX活性明显降低而MDA含量明显增加(P<0.05),但血清SOD、GSH-PX活性差异无统计学意义(P>0.05)。改变饮食并应用CPZD治疗后,明显降低NASH大鼠NAS和肝组织MDA含量(P<0.05),升高肝组织SOD、GSH-PX活性(P<0.05),而肝细胞脂肪变性差异无统计学意义(P>0.05)。结论:氧化应激和脂质过氧化是高脂高糖饮食诱导的大鼠发生NASH主要机制,在改变饮食基础上,CPZD不能有效改善肝脂肪变性程度,但明显减轻NASH大鼠的氧化应激,抑制脂质过氧化反应。Objective :To study oxidative stress influence on liver injury of the NASH rat induced by high fat and glu- cose diet,and observe the therapeutics effect of CPZD and explore its mechnism. Methods: The model rats of NASH were induced by 12 weeks'high fat and glucose diet, and treated with CPZD and Essentiale respectively. The pathological chan- ges of rats liver were observed, the amounts of liver MDA, and the activities of SOD and GSH - PX were detected. Results : Comparing with the normal control group, the degree of hepatocyte steatosis, NAFLD activity scores(NAS) and the content of MDA of liver significantly increased ( P 〈 0.05 ), the activity of SOD and GSH - PX of liver significantly decreased ( P 〈 0.05 ), but the activities of SOD and GSH - PX of serum were not significantly decreased. After changing diet and treated by CPZD, comparing with the model group, the NAS and the content of MDA of liver remarkly decreased( P 〈 0.05 ) , the activities of SOD and GSH - PX of liver were significantly higher( P 〈 0.05 ) ,but the degree of hepatocyte steatosis was not decreased (P 〉 O. 05 ). Conclusion:Oxidation stress and lipid peroxidation exsisted in rats with NASH induced by high fat and glucose diet, and played an important role in the information and procedure of NASI-I. At the base of changing di- et, CPZD could significantly decrease oxidation stresssuppress,lipid peroxidation of the NASH rats and enhance the ability of anti - oxidation, which is the important mechanism of treatment for NASH.
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