抗柯萨奇B病毒性心肌炎胶囊复方提取物对心肌保护作用的实验研究

目的 观察抗柯萨奇B病毒性心肌炎胶囊复方醇提物(K-CoxBJN-C)对阿霉素(ADR)诱导小鼠心肌损伤的保护作用,并探讨其作用机制.方法 选取肢体Ⅱ导联心电图正常的120只昆明小鼠随机分为6组,即正常对照组(灌胃生理盐水)、模型组(灌胃生理盐水)、水提物组(灌胃K-CoxBJN-S,5 g·kg-1)、复方65%醇提物高、中、低剂量治疗组(分别灌胃K-CoxBJN-C 1.2,2.4,4.8 g·kg-1),给药1次/d,连续14 d;同时除正常对照组(隔日腹腔注射NS 3 mg·kg-1)外,各组小鼠隔日腹腔注射阿霉素3 mg·kg-1,共7次,建立ADR心肌损伤模型.动态观察小鼠症状及体征、体质量变化、死亡率;末次注射ADR 24 h后取血,比色法测定血清中CK、LDH的活性;取心脏、脾、胸腺计算重量指数;取心脏观察心肌病理改变.结果 K-CoxBJN-C能显著降低小鼠血清中CK、LDH的活性(P<0.05),增加心脏、脾、胸腺重量指数,改善小鼠心功能,减少死亡率,其中醇提物高、中剂量组效果好于水煎组.结论 K-CoxBJN-C可明显减轻ADR所致小鼠的心肌损伤,其作用机制可能与减轻免疫炎性反应有关.

Protective Effects of Ethacol Extract of Antitoxin Cachet for Coxsackie B Myocarditis on Myocardial Injury Induced by Adriamycin in Mice

Objective To observe the protective effects of antitoxin cachet for Coxsackie B myocarditis on myocardium injury induced by adriamycin in mice and its mechanism. Methods 120 healthy kunming mice were randomly divided into six groups:blank group,model group,water-decoction group,HXTMLmax and HXTMLmin group,20 rats in each group.Saline was injected into mice of blank group,10 ml/kg,the rest mice were injected with adriamycin,3 mg/kg,once every 2 days,and the myocardial injury model was established after 7 tim...