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机构地区:[1]湖南中医药大学研究生院,湖南长沙410208 [2]湖南中医药大学第一附属医院,湖南长沙410007
出 处:《心脏杂志》2013年第6期637-638,653,共3页Chinese Heart Journal
基 金:国家自然科学基金项目资助(81173213/H2708);湖南省科技厅科技计划项目资助(2011FJ3042);湖南省研究生科研创新项目资助(CX2011B341);湖南省研究生科研创新项目资助(CX2010B350)
摘 要:目的:探讨阿霉素(ADR)对兔心脏结构及血清氨基末端脑钠尿肽前体(NT-proBNP)的影响,为慢性心衰模型的建立提供理论依据。方法:新西兰兔30只,随机分成正常对照组、模型4周组和模型8周组,每组10只(n=10)。模型4、8周组:耳缘静脉注射ADR(1.0 mg/kg,用生理盐水配制成1.0 mg/ml溶液),每周2次,共4、8周,正常对照组:注射相同体积的生理盐水。各组于末次注射7 d后,测量其左室舒张末期内径(LVEDD)、左室收缩末期内径(LVESD)、室间隔厚度(IVS)和左室后壁厚度(LVPW),并检测血清NT-proBNP水平的变化。结果:与正常对照组相比,模型4、8周两组LVDd、LVDs、IVS及LVPW均有不同程度增大(P<0.05或P<0.01),血清NT-proBNP的水平明显升高(P<0.01)。结论:ADR常规剂量长期静脉注射4、8周,可致兔心脏结构及血清NT-proBNP水平明显变化,可用于慢性心衰模型的制作。AIM:To study the effects of adriamycin (ADR) on cardiac structure and serum Nterminal brain natriuretic peptide precursor (NTproBNP) in rabbits and provide a model for chronic heart failure. METHODS: Thirty rabbits were randomly divided into three groups: 4week model group (n=10) and 8week model group (n=10, each) in which ADR was intravenously injected at the doses of 1 mg/kg twice weekly for 4 or 8 weeks, and control group (n=10) in which an equivalent volume of 09% sodium chloride was given. Seven days after the final injection in each group, the left ventricular enddiastolic dimension (LVEDD), left ventricular endsystolic dimension (LVESD), interventricular septum (IVS), left ventricular posterior wall (LVPW) and serum NTproBNP were evaluated, respectively. RESULTS: Compared with those in control group, LVDd, LVDs, IVS, LVPW and serum NTproBNP increased obviously in both model groups. CONCLUSION: Chronic administration of intravenous ADR to rabbits for 4 or 8 weeks harms the cardiac structure and raises serum NTproBNP. A model of chronic heart failure can be induced by ADR.
关 键 词:阿霉素 心脏结构 氨基末端脑钠尿肽前体 兔
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