五味子乙素对肝肾综合征大鼠的保护作用及其机制研究
投稿时间:2017-11-08  修订日期:2017-11-28  点此下载全文
引用本文:易国栋,谭静.五味子乙素对肝肾综合征大鼠的保护作用及其机制研究[J].医学研究杂志,2018,47(9):172-175
DOI: 10.11969/j.issn.1673-548X.2018.09.041
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作者单位E-mail
易国栋 445000 恩施土家族苗族自治州中心医院消化内科  
谭静 445000 恩施土家族苗族自治州中心医院肾病风湿科 ygdtj@sina.com 
中文摘要:目的 研究五味子乙素对肝肾综合征大鼠的保护作用,并对其作用机制进行初步探讨。方法 采用胆总管结扎诱导肝肾综合征大鼠模型,将大鼠随机分为5组:对照组,模型组,低、中、高剂量组(15、30、60mg/kg);测定大鼠血中ALT、TBL、CRE、UREA、尿量、肌酐清除率、内毒素、NO、ET及AT Ⅱ水平,并采用RT-PCR法对肝肾组织中GRP78/94及TLR4 mRNA表达水平进行分析。结果 五味子乙素可改善肝肾综合征模型大鼠的肝肾功能,血中ALT、TBL、CRE、UREA降低,尿量及肌酐清除率增加;还发现血清内毒素及NO含量也显著降低;五味子乙素还可以诱导肝肾组织中GRP78/94的表达,抑制TLR4的表达。结论 五味子乙素能够改善肝肾综合征大鼠的肝肾功能,其作用机制可能与肝肾组织中GRP78/94及TLR4基因表达水平相关。
中文关键词:五味子乙素  肝肾综合征  葡萄糖调节蛋白  Toll样受体4
 
Protective Effects of Schisandrin B on Rat Model of Hepatorenal Syndrome and Its Possible Mechanism
Abstract:Objective To investigate the protective effects of schisandrin B on rat model of hepatorenal syndrome and study its possible mechanism. Methods Rat model of hepatorenal syndrome was generated using common bile duct ligation, and rats were divided into five groups, including control group, model group, low-, middle-, and high-dose schisandrin B groups. The levels of ALT, TBL, CRE, UREA, quantity if urine, creatinine clearance rate, endotoxin, NO, ET and AT Ⅱ were measured. The expression levels of GRP78/94 and TLR4 mRNA in liver and kidney tissue were determined by RT-PCR. Results Schisandrin B can improve the hepatic and renal functions via inducing the levels of ALT, TBL, CRE and UREA, and suppressing quantity if urine and creatinine clearance rate in rat model of hepatorenal syndrome. Moreover, schisandrin B can stimulate the levels of GRP78 and 94 genes, and inhibit the expression of TLR4 in hepatic and renal tissue. Conclusion Schisandrin B has protected effect on rat model of hepatorenal syndrome,and the mechanism may be relevant to the expression levels of GRP78/94 and TLR4 genes.
keywords:Schisandrin B  Hepatorenal syndrome  Glucose regulatory proteins  Toll-like receptor 4
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