Regulation of the frequency‐dependent facilitation of L‐type Ca2+ currents in rat ventricular myocytes.

F Tiaho, C Piot, J Nargeot… - The Journal of …, 1994 - Wiley Online Library
1. An increase in the rate of stimulation induces an augmentation of L‐type Ca2+ currents
(ICa) and concomitant slowing of current decay in rat ventricular cells. This facilitation is …

Control of L‐type calcium current during the action potential of guinea‐pig ventricular myocytes

KW Linz, R Meyer - The Journal of physiology, 1998 - Wiley Online Library
1 During an action potential the L‐type Ca2+ current (ICa, L) activates rapidly, then partially
declines leading to a sustained inward current during the plateau phase. The reason for the …

Modulation by stimulation rate of basal and cAMP-elevated Ca2+ channel current in guinea pig ventricular cardiomyocytes.

SP Kaspar, DJ Pelzer - The Journal of general physiology, 1995 - rupress.org
The modulation of L-type Ca2+ current (ICa) by changes in stimulation frequency was
investigated in single ventricular cardiomyocytes isolated from guinea pig hearts. Electrical …

Ca (2+)‐dependent block and potentiation of L‐type calcium current in guinea‐pig ventricular myocytes.

SE Bates, AM Gurney - The Journal of Physiology, 1993 - Wiley Online Library
1. The caged calcium compound nitr‐5 has been used to investigate the response of the L‐
type calcium current (ICa) of guinea‐pig ventricular cells to a rapid increase in the free …

Regulation of Ca2+ current in frog ventricular myocytes by the holding potential, c-AMP and frequency

VJA Schouten, M Morad - Pflügers Archiv, 1989 - Springer
The whole-cell patch-clamp technique was used to study the effects of holding potential and
frequency on the Ca 2+ current in frog ventricular myocytes. I Na was blocked by TTX, and i …

Ultra-slow voltage-dependent inactivation of the calcium current in guinea-pig and ferret ventricular myocytes

MR Boyett, H Honjo, SM Harrison, WJ Zang, MS Kirby - Pflügers Archiv, 1994 - Springer
Abstract L-type Ca 2+ current, i Ca, has been recorded in guinea-pig ventricular myocytes at
36° C using the whole cell patch clamp technique. Intracellular Ca 2+ was buffered with …

Stimulation‐dependent facilitation of the high threshold calcium current in guinea‐pig ventricular myocytes.

AC Zygmunt, J Maylie - The Journal of physiology, 1990 - Wiley Online Library
1. Stimulation‐dependent modulation of Ca currents was examined in guinea‐pig
ventricular myocytes at room temperature. Whole‐cell recordings of Ca currents were made …

Voltage‐dependent inactivation of l‐type ca2+ Currents in Guinea‐Pig Ventricular Myocytes

I Findlay - The Journal of Physiology, 2002 - Wiley Online Library
The objective of this study was to describe the kinetics of voltage‐dependent inactivation of
native cardiac L‐type Ca2+ currents. Whole‐cell currents were recorded from guinea‐pig …

Ca2+ release‐induced inactivation of Ca2+ current in rat ventricular myocytes: evidence for local Ca2+ signalling.

JS Sham - The Journal of Physiology, 1997 - Wiley Online Library
1. Inactivation of Ca2+ current (ICa) induced by Ca2+ release from sarcoplasmic reticulum
(SR) was studied in single rat ventricular myocytes using whole‐cell patch‐clamp and indo …

Interconversion between distinct gating pathways of the high threshold calcium channel in rat ventricular myocytes.

S Richard, P Charnet… - The Journal of …, 1993 - Wiley Online Library
1. High‐voltage‐activated Ca2+ current (ICa) waveforms in adult rat ventricular myocytes
comprise two components, referred to here as ICa (fc) and ICa (sc) to denote the fast and …