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应激性高血糖对大鼠心肌缺血再灌注损伤的观察 被引量:4

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摘要 目的观察应激性高血糖(SHG)对大鼠心肌缺血/再灌注损伤(MIRI)时缺血期和再灌注期的不同影响,分析不同时期的SHG与心肌损伤之间的关系。方法成年SD大鼠50只随机分为5组:假手术组(SHAM)、高糖组(HG)、生理盐水对照组(CON)、缺血期高糖组(HGI)和再灌注期高糖组(HGR),每组各10只;制备大鼠MIRI模型(缺血30min,再灌注3h),静脉输注高浓度的葡萄糖液,造成应激性高血糖动物模型;术中监测血糖水平,再灌注结束后检测血清乳酸脱氢酶(LDH)水平,伊文斯兰染色测心肌梗死面积(Infarct size,IS),分析不同时期高血糖对心肌损伤的影响。结果与SHAM组相比,静脉输注高糖LDH表达并未明显改变;与CON组相比,机体发生MIMI时,LDH水平升高,HGI组LDH水平明显升高,IS显著扩大,差异有统计学意义(P<0.01);而HGR组心肌酶谱水平和IS与CON组比较差异无统计学意义。结论缺血期应激性高血糖加重大鼠心肌缺血/再灌注损伤。
出处 《中西医结合心脑血管病杂志》 2014年第8期994-996,共3页 Chinese Journal of Integrative Medicine on Cardio-Cerebrovascular Disease
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参考文献12

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