阿魏酸钠经RhoA/Rho-kinase信号通路对肝硬化大鼠门脉压力的作用及其机制
发布时间:2021-10-12 11:15
【背景及目的】门脉高压是使肝硬化病人死亡风险增高的重要因素之一。实验性肝硬化大鼠肝脏中RhoA及Rho-kinase表达水平明显高于正常大鼠,RhoA/Rho-kinase信号通道的激活导致血管平滑肌收缩并抑制其舒张,从而促进了门脉高压的发生。相关研究报道,阿魏酸能够降低胆固醇合成,后者合成过程的中间产物GGPP是RhoA活化的关键物质。本实验旨在研究阿魏酸对肝硬化大鼠门脉压力的作用,并探讨相关分子机制。【方法】用胆管结扎方法制作肝硬化大鼠模型。实验动物分为SHAM+NS、BDL+NS及BDL+SF三组,比较分析各组大鼠大体特征及血清肝功能指标。阿魏酸治疗对肝脏纤维化程度的影响通过显微镜下观察肝脏HE染色切片、透射电镜观察肝脏超微结构改变,以及免疫组化检测肝脏a-SMA表达等综合评定。免疫组化方法检测各组大鼠肝脏中RhoA、Rho-kinase及eNOS的表达。分离、培养原代大鼠HSC,另购入人肝星状细胞系LX-2,分别给予阿魏酸/阿魏酸+GGPP处理,流式细胞术检测各处理因素作用下细胞凋亡率。原位肝灌注方法测定大鼠原位肝灌注压力/肝内血管阻力,以及由低到高浓度梯度的甲氧明对各组大鼠肝...
【文章来源】:华中科技大学湖北省 211工程院校 985工程院校 教育部直属院校
【文章页数】:57 页
【学位级别】:硕士
【部分图文】:
阿魏酸纳经RhoA/ROCK通路对肝硬化门脉压力的作用及机制分析
光镜下观察各组大鼠肝脏HE染色切片
电镜下观察各组大鼠肝脏超微结构
【参考文献】:
期刊论文
[1]Clinical significance of connective tissue growth factor in hepatitis B virus-induced hepatic fibrosis[J]. David R Brigstock. World Journal of Gastroenterology. 2012(18)
[2]Treatment of portal hypertension[J]. Khurram Bari,Guadalupe Garcia-Tsao. World Journal of Gastroenterology. 2012(11)
[3]川芎素对肝硬化患者门静脉高压血流动力学的影响[J]. 黄忠,魏尉,钟强. 中国中西医结合杂志. 2008(07)
[4]Expression of cyclooxygenase in hyperdynamic portal hypertensive rats[J]. Hui Cao, Jia Xu, Rong Hua, Fang-Bin Meng, Jiang-Feng Qiu and Zhi-Yong Wu Department of Surgery, Renji Hospital, Shanghai Second Medical University, Shanghai 200127, China. Hepatobiliary & Pancreatic Diseases International. 2006(02)
[5]Role of PGI2 in the formation and maintenance of hyperdynamic circulatory state of portal hypertensive rats[J]. Zhi-Yong Wu, Xue-Song Chen, Jiang-Feng Qiu, Hui Cao, Department of Genneral Surgery, Renji Hospital, Shanghai Second Medical University, Shanghai 200127, China. World Journal of Gastroenterology. 2005(05)
[6]Effects of endothelin-1 on hepatic stellate cell proliferation,collagen synthesis and secretion,intracellular free calcium concentration[J]. Chuan-Yong Guo Jian-Ye Wu Yun-Bin Wu Min-Zhang Zhong Department of Gastroenterology,Shanghai Tenth People Hospital of Tongji University,Shanghai 200072,ChinaHan-Ming Lu Department of Gastroenterology,Xinhua Hospital of Shanghai Second Medical University,Shanghai 200092,China. World Journal of Gastroenterology. 2004(18)
[7]四氯化碳诱导犬早期肝损害所致门静脉高压的形态学观察[J]. 张日平,张伟辉,薛东波,魏云巍. 中华医学杂志. 2004(13)
[8]Effect of endotoxin on portal hemodynamic in rats[J]. Xiang-Jun Bi Min-Hu Chen Jing-Hui Wang Jie Chen,Department of Gastroenterology,First Affiliated Hospital,Sun Yat-sen University,Guangzhou 510089,GuangDong Province,China. World Journal of Gastroenterology. 2002(03)
本文编号:3432471
【文章来源】:华中科技大学湖北省 211工程院校 985工程院校 教育部直属院校
【文章页数】:57 页
【学位级别】:硕士
【部分图文】:
阿魏酸纳经RhoA/ROCK通路对肝硬化门脉压力的作用及机制分析
光镜下观察各组大鼠肝脏HE染色切片
电镜下观察各组大鼠肝脏超微结构
【参考文献】:
期刊论文
[1]Clinical significance of connective tissue growth factor in hepatitis B virus-induced hepatic fibrosis[J]. David R Brigstock. World Journal of Gastroenterology. 2012(18)
[2]Treatment of portal hypertension[J]. Khurram Bari,Guadalupe Garcia-Tsao. World Journal of Gastroenterology. 2012(11)
[3]川芎素对肝硬化患者门静脉高压血流动力学的影响[J]. 黄忠,魏尉,钟强. 中国中西医结合杂志. 2008(07)
[4]Expression of cyclooxygenase in hyperdynamic portal hypertensive rats[J]. Hui Cao, Jia Xu, Rong Hua, Fang-Bin Meng, Jiang-Feng Qiu and Zhi-Yong Wu Department of Surgery, Renji Hospital, Shanghai Second Medical University, Shanghai 200127, China. Hepatobiliary & Pancreatic Diseases International. 2006(02)
[5]Role of PGI2 in the formation and maintenance of hyperdynamic circulatory state of portal hypertensive rats[J]. Zhi-Yong Wu, Xue-Song Chen, Jiang-Feng Qiu, Hui Cao, Department of Genneral Surgery, Renji Hospital, Shanghai Second Medical University, Shanghai 200127, China. World Journal of Gastroenterology. 2005(05)
[6]Effects of endothelin-1 on hepatic stellate cell proliferation,collagen synthesis and secretion,intracellular free calcium concentration[J]. Chuan-Yong Guo Jian-Ye Wu Yun-Bin Wu Min-Zhang Zhong Department of Gastroenterology,Shanghai Tenth People Hospital of Tongji University,Shanghai 200072,ChinaHan-Ming Lu Department of Gastroenterology,Xinhua Hospital of Shanghai Second Medical University,Shanghai 200092,China. World Journal of Gastroenterology. 2004(18)
[7]四氯化碳诱导犬早期肝损害所致门静脉高压的形态学观察[J]. 张日平,张伟辉,薛东波,魏云巍. 中华医学杂志. 2004(13)
[8]Effect of endotoxin on portal hemodynamic in rats[J]. Xiang-Jun Bi Min-Hu Chen Jing-Hui Wang Jie Chen,Department of Gastroenterology,First Affiliated Hospital,Sun Yat-sen University,Guangzhou 510089,GuangDong Province,China. World Journal of Gastroenterology. 2002(03)
本文编号:3432471
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