Inotropic effect of a new probiotic product on myocardial contractility. Comparison with diazoxide

被引：1

作者：

Sobol C.V. ^{[1
]}

Korotkov S.M. ^{[1
]}

Nesterov V.P. ^{[1
]}

机构：

[1] Sechenov Institute of Evolutionary Physiology and Biochemistry, Russian Academy of Sciences, St. Petersburg

来源：

Biophysics | 2014年 / 59卷 / 5期

关键词：

Ca[!sup]2+[!/sup; contraction; diazoxide; inotropic effect; mitochondria; myocardium; probiotics; swelling;

D O I：

10.1134/S000635091405025X

中图分类号：

学科分类号：

摘要：

The inotropic effect of a new probiotic product on myocardial contractility of the frog Rana ridibunda and the effect of probiotic product on the rat cardiac mitochondria swelling were studied. In both cases, the comparison with known cardioprotector diazoxide was done. Probiotic product and diazoxide were shown to cause a dual effect on the maximum force induced by the muscle sample during spontaneous atrial contraction. Addition of agents caused a negative impact, while washing off exerted a positive inotropic effect. At the same time probiotic product has virtually no effect on the amplitude of contraction induced by electrical stimulation of the ventricle fragments. Probiotic product decreases both proton passive permeability in the inner mitochondrial membrane, and potassium active transport in mitochondria caused by activation of K+-uniporter of cardiomyocytes. A possible mechanism of action of probiotic product is discussed. © 2014, Pleiades Publishing, Inc.

引用

页码：780 / 785

页数：5