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机构地区:[1]武汉大学人民医院心内科,武汉430060 [2]武汉大学中南医院心功能室
出 处:《中华实验外科杂志》2013年第3期554-556,共3页Chinese Journal of Experimental Surgery
摘 要:目的观察粒细胞集落刺激因子(G—CSF)对兔心肌梗死后心脏功能及结构重塑的影响。方法38只新西兰大白兔随机分为两组,于左心耳与心尖连线1/2处结扎左前降支,制备心肌梗死模型。术后24h,实验组G.CSF10μg(kg·),对照组生理盐水0.5ml/(kg·d),共5d均皮下注射。在术前、术后60d二维超声测量心功能,酶联免疫吸附试验(ELISA)检测血浆脑钠肽(BNP)水平。结果梗后60d,实验组与对照组超声结果分别为左室射血分数(LVEF)[(73.6±3.7)%、(60.1±12.0)%]、短轴缩短率(FS)[(43.5±3.7)%、(33.1±9.3)%]、左室收缩末期内径(LVESD)[(7.9±0.3)mm、(10.1±1.6)mm]、左室舒张末期内径(LVEDD)[(14.1±0.8)mm、(15.1±1.0)mm]、左房内径(LAD)[(7.14±0.24)Illnl、(15.1±1.0)mm]、左室后壁厚度(LVPWT)[(2.98±0.25)mm、(3.37±0.44)mm、室间隔厚度(IVST)[(2.91±0.19)mm、(3.28±0.42)mm],两组各参数之间差异有统计学意义(P〈0.05)。BNP梗后第10天,实验组(113.38-4-39.40)ng/L,对照组(325.35±96.14)ng/L(P〈0.05);梗后60d,实验组:(34.90±13.90)ng/L,对照组:(150.14±37.15)ng/L(P〈0.05)。结论G—CSF可改善急性心肌梗死后心功能,并维持至慢性期,同时能改善心肌结构重塑。Objective To observe the effect of granulocyte colony stimulating factor (G-CSF) on cardiac structure and function post myocardial infarction. Methods Left ventricular ejection fraction (LVEF), fractional shortening (FS), left ventrieular end systolic diameter (LVESD), left ventricular end dias- tolic diameter (LVEDD), left atrial diameter (LAD), left ventricular posterior wall thickness (LVPWT), inter- ventricular septal thickness (IVST) were measured by echocardiography before and post myocardial infarction (MI). Brain natriuretic peptide (BNP) was measured by enzyme linked immunosorbent assay (ELISA) double-antibodyaphy sandwich methods. Results All the parameters have no difference between two group before MI, At the 60 days post MI, the parameters in treatment group and control group are as follows: (73.6±3.7)% via (60. 1±12.0)% for LVEF, (43.5±3.7)% via (33.1±9.3)% for FS, (7.9±0.3)ram via (10.1±1.6) mm for LVESD, (14.1±0.8) mm via (15.1±1.0) mm for LVEDD, (7. 14±0.24) mm via (8.90±0.91) mm for LAD, (2.98±0.25) mm via (3.37±0.44) mm for LVPWT, (2. 91±0. 19) mm via ( 3.28±0. 42) mm for IVST (P 〈0. 05). The results of BNP in treat- ment group and control group are as follows : Both increased to the top at two hours post MI ( P 〉 O. 05 ) , (113.38±39.40) ng/L via (325.35±96.14) ng/L at the 10days post MI (P〈0.05); (34.90±13.90) ng/L via (150.14+37.15) ng/L at the 60 dayspost MI (P〈0.05). Conclusion G-CSF can improve cardiac function and reduce heart structure remodeling post MI.
分 类 号:R542[医药卫生—心血管疾病]
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