心房颤动心房交感神经过度支配机制的实验研究

被引:15
作者
公永太
李为民
李悦
张晓伟
盛力
薛竞宜
杨宝峰
机构
[1] 哈尔滨医科大学第一临床医学院心内科
关键词
房颤; 神经生长因子; 自主神经系统;
D O I
暂无
中图分类号
R541.75 [];
学科分类号
摘要
目的研究心房颤动(房颤)心房交感神经过度支配的机制。方法14只犬被随机分为假手术组和起搏组,起搏组犬右心房400次/分起搏6周建立房颤犬模型。起搏6周后,免疫组织化学法检测两组犬左右心房前壁神经萌出和交感神经分布;分别应用实时定量RT-PCR法和蛋白印迹法检测左右心房前壁β-神经生长因子(β-NGF)基因和蛋白表达。结果心房快速起搏引起心房显著神经萌出和交感神经不均一性过度支配,右心房前壁神经萌出和交感神经密度大于左心房前壁。起搏组犬左右心房前壁心房肌β-NGF基因和蛋白表达显著增加,且右心房前壁心房肌β-NGF含量高于左心房前壁。两组犬心房肌β-NGF蛋白含量与局部交感神经密度显著正相关。结论心房肌β-NGF过度表达可能是房颤心房不均一性交感神经过度支配的主要机制。
引用
收藏
页码:21 / 24
页数:4
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