EFFECTS OF SOME ANTI-ARRHYTHMIC AGENTS ON DOG HEART MITOCHONDRIAL OXIDATIVE-PHOSPHORYLATION

被引:8
作者
ALTO, LE [1 ]
DHALLA, NS [1 ]
机构
[1] UNIV MANITOBA,DEPT PHYSIOL,DIV EXPTL CARDIOL,WINNIPEG R3E 0W3,MANITOBA,CANADA
关键词
Antiarrhythmic drugs; Canine myocardium; Mitochondrial oxidative phosphorylation;
D O I
10.1016/0014-2999(79)90297-8
中图分类号
R9 [药学];
学科分类号
1007 ;
摘要
Significant decreases in state 3 oxygen consumption, respiratory control index (RCI), ADP: O ratio and phosphorylation rate were observed in the presence of 0.1-1.0 mM quinidine; 0.5 mM or greater concentratiions elevated state 4 oxygen consumption. Lidocaine (1-2.5 mM) also depressed RCI and increased state 4 oxygen consumption but procaine amide (1-2.5 mM) was without effect. It is suggested that cardiodepressin by quinidine may be associated with its ability to impair mitochondrial metabolism. © 1979.
引用
收藏
页码:311 / 314
页数:4
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