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• 基础研究 • 上一篇    下一篇

谷氨酰胺对阻塞性黄疸大鼠肝细胞凋亡和相关基因Bcl-2及Bax表达的影响

程 雷1,谭 广1,王 举2,石爱平2,谭毓铨2,王忠裕1   

  1. 1. 大连医科大学第一附属医院普通外科,辽宁 大连116011;2. 吉林大学第一医院普通外科,吉林 长春130021
  • 收稿日期:2004-06-24 修回日期:1900-01-01 出版日期:2005-09-28 发布日期:2005-09-28

Effects of glutamine on hepatocytes apoptosis,expressionsof Bcl-2 and Bax in rats with obstructive jaundice

CHENG Lei1,TAN Guang1,WANG Ju2,SHI Ai-ping2,TAN Yu-quan2,WANG Zhong-yu1   

  1. 1. Department of General Surgery,First Affiliated Hospital of Dalian Medical University,Daliang 116011,China; 2. Departmnet of General Surgery,First Hospital,Jilin University,Changchun 130021,China
  • Received:2004-06-24 Revised:1900-01-01 Online:2005-09-28 Published:2005-09-28

摘要: 目的:探讨谷氨酰胺对阻塞性黄疸大鼠肝细胞凋亡的影响。方法:健康雄性Wistar大鼠50只,随机分成空白对照组(SL,n=10)、阻塞性黄疸组(OJ,n=20)和谷氨酰胺治疗组(TG,n=20)。用原位末端标记法(TUNEL)和免疫组织化学方法检测50只大鼠肝脏组织细胞凋亡和凋亡相关基因Bcl-2及Bax蛋白的表达。结果:TG治疗2周时大鼠肝细胞Bcl-2蛋白的表达增加,强阳性表达(+++);Bax的表达下降,中阳性表达(++);凋亡指数为15.75±3.68,与SL和OJ 2周组比较,差异具有显著性(P<0.05)。结论:谷氨酰胺能够降低阻塞性黄疸肝细胞凋亡,增加Bcl-2蛋白表达,降低Bax蛋白表达。

关键词: 药物治疗, 谷氨酰胺, 肝细胞, 细胞凋亡

Abstract: Objective To explore the effects of glutamine on hepatocytes apoptosis in rats with obstructive jaundice. Methods 50 male Wistar rats were randomly divided into three groups:control(SL,n=10),obstructive jaundice group (OJ,n=20) and glutamine treatment group (TG,n=20).The hepatocytes apoptosis and the expressions of Bcl-2 and Bax were detected by using TUNEL and immunohistochemistry method. Results The expression of Bcl-2 in rat hepatocytes was increased 2 weeks after treatment in TG group. It expressed positively (+++). The expression of Bax was also decreased compared with the SL and OJ groups in two weeks. It expressed positively (++). Apoptotic index was 15.75±3.68. The difference was significant (P<0.05). Conclusion The glutamine can decrease hepatocytes apoptosis,the expression of Bax, and increase the expression of Bcl-2.

Key words: drug therapy, glutamine, hepatocytes, apoptosis

中图分类号: 

  • R575.7