摘要 目标:经过腹腔注射阿霉素诱导制备扩张型心肌病dilated cardiomyopathy,DCM大鼠模型,探讨其心功效的改变。方法:选择体质量为240~290 g的8周龄、SPF级近交系雄性SD大鼠85只,分为2组:DCM组n=65、正常对照组n=20。DCM组采取腹腔注射阿霉素的方法构建DCM模型;正常对照组则注射等容积的生理盐水。给药第10周对两组大鼠行心脏超声检验,观察左室舒张末期内径、左室收缩末期内径、左室射血分数、左室短轴缩短率。结果:心脏超声检验显示DCM组大鼠心腔扩大,室壁活动度弥漫性减弱,左室舒张末期内径、左室收缩末期内径显著大于正常对照组,见表2。给药第10周,DCM组大鼠心腔扩大,室壁活动度弥漫性减弱,LVEDD、LVESD显著大于正常对照组P 参考文件 1 Cleland J G,Daubert J C,Erdmann E,et effect of cardiac resynchronization on morbidity and mortality in heart Engl J Med,2021,35215:1539-1549. 2 Lipshultz S E, Scully R E, Lipsitz S R,et of dexrazoxane as a cardioprotectant in doxorubicin-treated children with high-risk acute lymphoblastic leukaemia:long-term follow-up of a prospective,randomised,multicentre Oncol,2021,1110:950-961. 3 Zhou Y,Zhao L R,Yang S dilated cardiomyopathy model of J Lab Diagn,2021,143:331-334. 4 Berk F,Isgoren S,Demir H,et of left ventricular function and volume in patients with dilated cardiomyopathy;gated myocardial single-photon emission tomography SPECT versus Saudi Med,2021,253:198-204. 5 Hershberger R E,Morales A,Siegfried J and genetic issues in dilated cardiomyopathy:A review for genetics Med,2021,1211:55-67. 6 Pfeffer M A,McMurray J V,Velazquez E ,Captopril, or Both in Myocardial Infarction Complicated by Heart F