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急性心肌缺血大鼠心脏孤啡肽表达的变化 被引量:3

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摘要 目的观察急性心肌缺血大鼠心肌组织内孤啡肽(orphanin FQ,OFQ)的表达变化,探讨孤啡肽在急性心肌缺血中的作用。方法 54只260~280g健康成年雄性SD大鼠,按随机数字表法分为3组:①动物对照组(C组);②手术对照组(Sham组);③结扎冠状动脉组(CAO组)。采用免疫组织化学染色(SABC法),观察冠脉结扎大鼠不同时点心肌组织内OFQ的表达变化,以平均光密度为指标进行半定量分析。同时记录相应时点心电图波形,并对不同时点P波、T波振幅和ST段偏移量进行统计学分析。结果免疫组化切片CAO后各时点心肌缺血区OFQ的水平较对照组显著升高(P<0.05),在CAO3h达高峰(0.663±0.021)(P<0.01)。与对照组心电图相比,CAO组不同时点P波、T波振幅和ST段偏移量差别有统计学意义(P<0.05)。结论急性心肌缺血时OFQ表达显著增多,可能起到心肌保护作用。
作者 姚太平 郭政
出处 《第三军医大学学报》 CAS CSCD 北大核心 2010年第17期1898-1900,共3页 Journal of Third Military Medical University
基金 国家自然科学基金(30471656)
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参考文献11

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