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    题名 作者 年代 出处 被引量
1肝硬化患者的自主神经功能异常研究进展显示文摘自主神经功能异常(autonomicdysflmction,AD)在肝硬化患者很常见,晚期肝硬化患者AD的发生率可达80%以上,主要表现为副交感神经功能低下,交感神经功能亢进。63%有AD的患者肝移植后自主神经功能有改善。王莉 邹志强 2011中华肝脏病杂志2011,19,10:6
2Effect of propranolol on the splanchnic and peripheral renin angiotensin system in cirrhotic patients显示文摘AIM:To evaluate the effect of β-blockade on angiotensins in the splanchnic and peripheral circulation of cirrhotic patients and also to compare hemodynamic parameters during liver transplantation according to propranolol pre-treatment or not. METHODS:Patients were allocated into two groups:outpatients with advanced liver disease(LD) and during liver transplantation(LT). Both groups were subdivided according to treatment with propranolol or not. Plasma was collected through peripheral venipuncture to determine plasma renin activity(PRA),Angiotensin(Ang) Ⅰ,Ang Ⅱ,and Ang-(1-7) levels by radioimmunoassay in LD group. During liver transplantation,hemodynamic parameters were determined and blood samples were obtained from the portal vein to measure renin angiotensin system(RAS) components.RESULTS:PRA,Ang Ⅰ,Ang Ⅱ and Ang-(1-7) were signifi cantly lower in the portal vein and periphery in all subgroups treated with propranolol as compared to non-treated. The relationships between Ang-(1-7) and Ang Ⅰ levels and between Ang Ⅱ and Ang Ⅰ were significantly increased in LD group receiving propranolol. The ratio between Ang-(1-7) and Ang Ⅱ remained unchanged in splanchnic and peripheral circulation in patients under β-blockade,whereas the relationship between Ang Ⅱ and Ang Ⅰ was significantly increased in splanchnic circulation of LT patients treated with propranolol. During liver transplantation,cardiac output and index as well systemic vascular resistance and index were reduced in propranolol-treated subgroup. CONCLUSION:In LD group,propranolol treatment reduced RAS mediators,but did not change the ratio between Ang-(1-7) and Ang Ⅱ in splanchnic and peripheral circulation. Furthermore,the modification of hemodynamic parameters in propranolol treated patients was not associated with changes in the angiotensin ratio.Walkíria Wingester Vilas-Boas Antnio Ribeiro-Oliveira Jr Renata da Cunha Ribeiro Renata Lúcia Pereira Vieira Jerusa Almeida Ana Paula Nadu Ana Cristina Sim■es e Silva Robson Augusto Souza Santos 2008World Journal of Gastroenterology2008,14,44:2
3门静脉高压模型犬门静脉和下腔静脉阻断与开放过程中血液动力学及NO、ET、PGI_2和TXA_2的变化显示文摘目的观察门静脉和下腔静脉阻断与开放后门静脉高压模型犬体循环的变化及与NO/ET、PGI2/TXA2的关系。方法正常家犬12只,随机均分为对照组和门静脉高压模型组(采用部分结扎门静脉的方法建立门静脉高压症犬的模型并饲养12周),进行门静脉和肝后下腔静脉阻断与开放实验,监测围术期心率(HR)、平均动脉压(MABP)、中心静脉压(CVP)、肺动脉楔压(PAWP)、心指数(CI)、体循环阻力指数(SVRI)。分别于麻醉后术前、无肝期30min、新肝期30min3个时点抽取中心静脉血,用放免法测定血浆一氧化氮(NO)/内皮素(ET)、前列环素(PGI2)/血栓素A2(TXA2)水平。结果在门静脉和下腔静脉阻断后两组犬出现了明显的体循环的变化,表现为门静脉和下腔静脉阻断后均处于低有效循环,但模型组相对稳定;门静脉高压模型组围术期体循环血浆NO水平在门静脉和下腔静脉阻断后持续显著降低。结论在围术期两组犬出现了明显的体循环的变化,门静脉高压组阻断期体循环相对稳定,血浆NO、ET、PGI2、TXA2的意义需进一步探讨。池信锦 魏涧琦 黑子清 葛缅 刘德昭 2009南方医科大学学报2009,29,7:0
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