Effects of Ouabain, DBcAMP, Caffeine, and High (Ca2+)o on Twitch Tension, Intracellular Na+ Activity, and Action Potential of Guinea Pig Papillary Muscles.
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چکیده
منابع مشابه
Effects of resveratrol on delayed afterdepolarization and triggered activity induced by ouabain in guinea pig papillary muscles.
The purpose of this study was to investigate the effects of resveratrol on delayed afterdepolarization (DAD) and triggered activity (TA) induced by ouabain in guinea pig papillary muscles and the underlying mechanism. Action potentials were recorded using intracellular microelectrode technique. The results obtained are as follows: (1) DAD and TA induced by ouabain (1 micromol/L) were inhibited ...
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The purpose of this study was to investigate the electrophysiological effects of resveratrol on guinea pig papillary muscles and the underlying mechanism. Action potentials were recorded by using intracellular microelectrode technique. The results obtained are as follows: (1) In normal papillary muscles, resveratrol (30, 60, and 120 micromol/L) shortened the duration of action potential (APD) i...
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Effects of taurine on slow action potentials in papillary muscles of guinea pig.
AIM To examine the effects of taurine on the slow action potentials induced by KCl 24 mmol.L(-1) or tetrodotoxin 40 mumol.L(-1) in guinea pig papillary muscles. METHODS The transmembrane AP was recorded by a conventional glass microelectrode filled with KCl 3 mmol.L(-1). The muscles were exposed to high K(+)-Tyrode's solution or perfused with Tyrode's solution containing tetrodotoxin. Ouabain...
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ژورنال
عنوان ژورنال: The Japanese Journal of Physiology
سال: 1992
ISSN: 0021-521X
DOI: 10.2170/jjphysiol.42.473