刮痧联合放血对热射病大鼠下丘脑HSP-70mRNA及蛋白的影响Effect of Combination Treatment with Guasha and Blood-letting on the Expression of HSP-70 in the Hypothalamus of Rats during Heat Stroke
夏婉,屠文展,程瑞动,何蓉,蒋松鹤
摘要(Abstract):
目的观察背部刮痧结合放血对热射病模型大鼠的影响,检测下丘脑热休克蛋白-70(HSP-70)mRNA及蛋白表达的变化。方法雄性SD大鼠80只,随机分为常温对照组,热应激组,刮痧组,放血组和刮痧结合放血组,每组16只。监测治疗前后动物心率、直肠温度、平均动脉压的动态变化及生存时间。致热休克后20 min后蛋白印迹法和实时荧光定量PCR法观察大鼠下丘脑HSP-70 mRNA及蛋白的表达变化。结果热应激组大鼠存活时间为(23±2)min,刮痧组、放血组及刮痧结合放血组均延长了热应激大鼠的存活时间(P<0.01),以刮痧结合放血组更显著(P<0.01)。与常温对照组比较,热应激后下丘脑HSP-70 mRNA及蛋白表达升高(P<0.01);刮痧组、放血组、刮痧结合放血组后HSP-70 mRNA及蛋白表达均上调,与热应激组比较差异有统计学意义(P<0.01);以刮痧结合放血组HSP-70 mRNA及蛋白的表达上调更显著(P<0.01)。结论对热射病模型进行背区刮痧结合放血治疗可延长生存时间,可能通过上调HSP-70水平,减轻病理损伤而起到治疗作用。
关键词(KeyWords): 热射病;热休克;刮痧;放血;热休克蛋白
基金项目(Foundation): 浙江省中医药科技计划项目(2009YB023)
作者(Author): 夏婉,屠文展,程瑞动,何蓉,蒋松鹤
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