瞄准:调查天赋的禁止的效果公牛(NTau ) 在在有试验性地导致的肝肝硬化(LC ) 的老鼠的门高血压(PHT ) 上。方法:试验性地导致的 LC Wistar 老鼠(20 老鼠 / 组) 与也被对待为 6 个连续星期的口头的盐或口头的 NTau。评估参数包括了门静脉的压力(PVP ) ,门静脉的抵抗(PVR ) ,门静脉的流动(PVF ) ,内脏的脉管的抵抗(SVR ) 和吝啬的动脉的压力(地图) 。包括氮的氧化物的 Vasoactive 物质层次(没有) ,氮的氧化物 synthase (NOS ) 和单音的磷酸盐(cGMP ) 也是的周期的海鸟粪正弦测量了。类型的组织学的调查 ? 我 ? 并且 III 骨胶原(关口 ? 我 ? 并且 III ) 并且转变生长 factor-beta1 (TGF-beta1 ) 也被执行。结果:有 NTau (1 ) 的处理显著地减少了 PVP, PVR 和 PVF,和增加的地图和 SVP;(2 ) 显著地增加了脉管的依从并且减少门静脉零压力;(3 ) 显著地减少了数量没有并且 NOS 的 cGMP 和活动;并且(4 ) 改进了肝织物的病理学的地位并且减少了关口的表示 ? 我,关口 III 和 TGF-beta1。结论:NTau 由改进亢奋的动态循环禁止了导致 LC 的 PHT,肝和简历的形态学在试验性地导致的 LC 老鼠的门静脉的机械性质。
AIM: To investigate the inhibitory effect of natural taurine (NTau) on portal hypertension (PHT) in rats with experimentally-induced liver cirrhosis (LC). METHODS: Experimentally-induced LC Wistar rats (20 rats/group) were treated with either oral saline or oral NTau for 6 consecutive weeks. Evaluation parameters included portal venous pressure (PVP), portal venous resistance (PVR), portal venous flow (PVF), splanchnic vascular resistance (SVR) and mean arterial pressure (NAP). Vasoactive substance levels including nitric oxide (NO), nitric oxide synthase (NOS) and cyclic guanosine monophosphate (cGMP) were also measured. Histological investigation of type Ⅰ and Ⅲ collagen (COL Ⅰ and Ⅲ) and transforming growth factor-β1 (TGF-β1) was also performed. RESULTS: Treatment with NTau (1) significantly decreased PVP, PVR and PVF, and increased MAP and SVP; (2) markedly increased the vascular compliance and reduced the zero-stress of the portal vein; (3) markedly decreased the amount of NO and cGMP and activity of NOS; and (4) improved the pathological status of the liver tissue and reduced the expression of COL Ⅰ, COL Ⅲ and TGF-β1. CONCLUSION: NTau inhibited the LC-induced PHT by improving hyperdynamic circulation, morphology of liver and biomechanical properties of the portal vein in experimentally-induced LC rats.