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St.Thomas No.2液添加左卡尼汀减轻老年大鼠离体心脏再灌注损伤 被引量:3

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摘要 目的研究St.Thomas No.2液中添加左卡尼汀(LCN)对老年大鼠离体心脏再灌注损伤的影响。方法使用Langendorff灌注装置建立老年大鼠离体心脏再灌注损伤模型,将SD老年大鼠24只随机分成3组,对照组采用St.Thomas No.2液作为心脏停搏液,LCN1组、LCN2组采用含6、12 g/L左卡尼汀的St.Thomas No.2液为心脏停搏液。离体心脏保存30min再恢复灌注,观察心功能恢复情况,比较冠脉流出液心肌酶浓度以及心肌组织匀浆三磷酸腺苷(ATP)和丙二醛(MDA)含量。结果离体心脏灌注30 min时各组心功能恢复率差别无统计学意义,灌注60 min时LCN1组左心室收缩峰压(LVSPP)恢复率较对照组高(P<0.05),其他指标差异无统计学意义(P>0.05),LCN2组心功能恢复率较LCN1组和对照组高(P<0.05)。冠脉流出液心肌酶浓度和心肌丙二醛含量以对照组最高,LCN2最低(P<0.05);LCN1组、LCN2组心肌组织ATP含量较对照组明显增高(P<0.05)。结论 St.Thomas No.2液中添加左卡尼汀可以减轻老年大鼠离体心脏的缺血再灌注损伤,该保护效果与使用剂量与再灌注时间有关。
出处 《中国老年学杂志》 CAS CSCD 北大核心 2014年第8期2163-2165,共3页 Chinese Journal of Gerontology
基金 贵州省科技攻关项目(黔科合SY〔2010〕3119号)
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