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RECOMBINANT HUMAN BRAIN NATRIURETIC PEPTIDE ON THE CARDIAC HEMODYNAMICS AND RENAL FUNCTION IN DOGS WITH HEART FAILURE

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Author:
No author available
Journal Title:
ACTA PHARMACEUTICA SINICA
Issue:
10
DOI:
10.3321/j.issn:0513-4870.2002.10.002
Key Word:
重组人脑钠肽(rhBNP);心衰犬;血流动力学;肾功能

Abstract: 目的研究国产重组人脑钠肽(rhBNP)对慢性心衰犬血流动力学及肾功能的影响.方法用右心室快速起搏(RVP)或狭窄下腔静脉(TIVCC)形成犬的心衰模型.结果 RVP心衰犬iv rhBNP后,平均动脉压(MAP)、左室内压(LVSP)、LVdp/dt、肺动脉压(PAP)、左室舒张末期压(LVEDP)、总外周阻力(TPR)及肾血管阻力(RVR)呈剂量依赖性下降,LVdp/dt/P、左室做功(LVW)、心输出量(CO)和心率(HR)无明显改变;TIVCC心衰犬在iv同剂量rhBNP后,MAP,LVEDP和CO下降,其他心功能指标无明显改变.两种心衰犬给药后尿量和尿钠排出量均增加.结论 rhBNP有舒张血管和利尿作用,能明显降低心衰犬的心脏前后负荷,不影响心脏收缩功能.

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