实用肝脏病杂志 ›› 2009, Vol. 12 ›› Issue (6): 411-413.

• 论 著 • 上一篇    下一篇

非酒精性脂肪性肝炎大鼠肝组织Bcl-2和Bax的表达及其意义

解燕茹, 赵和平   

  1. 030001 太原市 山西医科大学2007级硕士研究生(解燕茹); 第一临床医院综合科(赵和平)
  • 收稿日期:2009-05-21 出版日期:2009-12-10 发布日期:2016-05-11
  • 通讯作者: 赵和平,E-mail:zhpyx168@126.com
  • 作者简介:解燕茹 女,25岁,硕士研究生,主要从事肝脏疾病的研究。E-mail:liweijie2800@sina.com

Expressions of Bcl-2 and Bax in liver tissures of rats with nonalcoholic steatohepatitis

XIE Yanru, ZHAO Heping   

  1. Department of Synthetical Section,Affiliated Hospital,Shanxi Medical University,Taiyuan,Shanxi 030001,China
  • Received:2009-05-21 Online:2009-12-10 Published:2016-05-11

摘要: 目的探讨凋亡调控蛋白Bcl-2和Bax表达在大鼠非酒精性脂肪性肝炎发病中的作用。方法将20只Wistar大鼠随机分为普通饲料喂养组(正常组)和高脂饲料喂养组(模型组),连续喂养12周后,测定血清甘油三酯(TG)、总胆固醇(TC)、丙氨酸氨基转移酶(ALT)、天冬氨酸氨基转移酶(AST),观察肝组织病理学变化和炎症活动度计分,采用Western blot法检测肝组织Bcl-2和Bax的表达。结果模型组大鼠肝小叶内肝细胞呈弥漫性脂肪变,伴大量炎性细胞浸润及散在性点状坏死;模型组动物肝组织Bax蛋白表达较正常组显著性升高(1.02±0.33对0.51±0.03,P<0.01),而Bcl-2蛋白较正常组则明显下降(0.15±0.31对0.52±0.01,P<0.01),Bcl-2/Bax比值降低(0.14±0.01对1.03±0.06,P<0.01)。结论凋亡调控蛋白Bcl-2和Bax的表达变化可能参与了NASH的发生和发展过程。

关键词: 非酒精性脂肪性肝炎, 细胞凋亡, Bcl-2, Bax

Abstract: Objective To explore the effect of apoptosis-regulated proteins Bcl-2 and Bax on the 1iver of rats with nonalcoholic steatohepatitis. Methords 20 male Wistar rats were randomly divided into standard diet-fed group and high fat diet-fed group. After 12 weeks,the levels of serum triglyceride,total cholesterol,ALT and AST were measured. The levels of Bcl-2 and Bax Proteins were determined by Western blot. Results The NASH rats exhibited severe steatohepatitis with scattered punctual necrosis;The relative level of Bax in liver tissue of rats with NASH was significantly higher than that in controls(1.02±0.33 vs.0.51±0.03,P<0.01),while the expression of Bcl-2 was decreased(0.15±0.31 vs 0.52±0.01,P<0.01). The Bcl-2/Bax ratio also decreased in the NASH group(0.14±0.01 vs 1.03±0.06,P<0.01). Conclusion Bcl-2 and Bax proteins could play a role in rats with nonalcoholic steatohepatitis.

Key words: Nonalcoholic steatohepatitis, Apoptosis, Bcl-2, Bax