重庆医学2017，Vol.46Issue(17)：2383-2385,3.DOI:10.3969/j.issn.1671-8348.2017.17.025
高脂联合地塞米松诱导小鼠急性脂肪肝模型的实验研究
Experimental study of high fat diet plus dexamethasone for inducing acute fatty liver model in mice
摘要
Abstract
Objective To study the drug dosage and time dependency characteristics of high-fructose-high-fat-feeding plus dexamethason for inducing the mouse acute fatty liver model and to optimize the condition of drug induced fatty liver model.Methods Male KM mice were divided into the normal control group and high-fructose-high-fat-feeding plus peritoneal injection of dexamethason group.The mice were killed at 3 different time points.The mouse body mass and liver mass were detected.The liver index was calculated.The serum and liver tissue homogenate TG and serum glucose(GLU) levels were detected.The liver tissue pathological change was observed by HE staining.Total RNA reverse expression related gene was extracted from the liver tissue.The total protein was extracted from the liver tissue and the related protein expression was detected by Western Blot.Results Compared with the control group,blood and liver homogenate TG after 7 d in the dexamethason model group was increased,the liver index was increased,the pathological section displayed that the fatty liver was formed.RT-PCR showed that lipid metabolism related gene expression had obvious change.Western Blot showed that SIRT1 was significantly decreased.But with the dexamethason dosage decrease and time extending,the fatty liver related indexes were decreased,lipid metabolic gene PPAR,FOXO3 and FXR were gradually increased,while LXR was gradually decreased and protein SIRT1 was gradually increased.Conclusion High-fructose-high-fatfeeding plus peritoneal injection of dexamethason could establish the mouse acute fatty liver model,moreover the model maintenance has dependency on dexamethason dosage and medication time,which has a guidance significance for the drug interventional experiment.关键词
地塞米松/高糖高脂饲料/脂肪肝模型Key words
dexamethason/high-fructose-high-fat-feeding/fatty liver分类
医药卫生引用本文复制引用
吴利春,尹梦,候梦莹,段丽,涂浩,刘朝奇..高脂联合地塞米松诱导小鼠急性脂肪肝模型的实验研究[J].重庆医学,2017,46(17):2383-2385,3.基金项目
国家自然科学基金资助项目(81473461). （81473461）
