半夏泻心汤对脓毒症大鼠肠道机械屏障的保护作用研究Protective Effect of Banxia Xiexin Decoction on Intestinal Mechanical Barrier in Sepsis Rats
刘阳,刘委宏,郝浩,张飞虎,孔立
摘要(Abstract):
目的观察半夏泻心汤对脓毒症大鼠肠道机械屏障的保护作用,并初步探讨其相关机制。方法将30只SD大鼠随机分为对照组、脓毒症组和半夏泻心汤组。采用盲肠结扎穿孔(CLP)法制备脓毒症大鼠模型。对照组只开腹后关腹,其他操作相同。半夏泻心汤组在成模时开始灌胃中药。对照组和脓毒症组在成模时灌胃生理盐水。成模后72 h处死大鼠,留取血清和肠道组织标本进行组织病理学评价,检测血清内毒素、D-乳酸、二胺氧化酶(DAO)、肿瘤坏死因子-α(TNF-α)、白细胞介素-10(IL-10)含量以及组织TNF-α、IL-10的基因表达。结果半夏泻心汤组大鼠肠道组织病理损伤情况较脓毒症组明显减轻。半夏泻心汤组血清内毒素、D-乳酸、DAO、TNF-α含量均较脓毒症组显著减少,而IL-10含量较脓毒症组显著增加(P <0.05)。半夏泻心汤组肠道组织TNF-α的基因表达水平较脓毒症显著降低,而IL-10的基因表达水平较脓毒症显著增加(均P <0.05)。结论半夏泻心汤能减轻炎症反应,对脓毒症大鼠肠道机械屏障具有保护作用,其机制可能是通过上调IL-10表达和抑制TNF-α表达实现的。
关键词(KeyWords): 脓毒症;半夏泻心汤;肠道机械屏障;白介素-10;肿瘤坏死因子-α;大鼠
基金项目(Foundation): 国家自然科学基金资助项目(81503543);; 山东省自然科学基金资助项目(ZR2015HL058;ZR2017MH073)
作者(Author): 刘阳,刘委宏,郝浩,张飞虎,孔立
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