Ryanodine prolongs Ca-currents while suppressing contraction in rat ventricular muscle cells
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منابع مشابه
LVA and HVA Ca(2+) currents in ventricular muscle cells of the Lymnaea heart.
The single-electrode voltage-clamp technique was used to characterize voltage-gated Ca(2+) currents in dissociated Lymnaea heart ventricular cells. In the presence of 30 mM tetraethylammonium (TEA), two distinct Ca(2+) currents could be identified. The first current activated between -70 and -60 mV. It was fully available for activation at potentials more negative than -80 mV. The current was f...
متن کاملLVA and HVA Ca Currents in Ventricular Muscle Cells of the Lymnaea Heart
Yeoman, M. S., B. L. Brezden, and P. R. Benjamin. LVA and HVA Ca currents in ventricular muscle cells of the Lymnaea heart. J. Neurophysiol. 82: 2428–2440, 1999. The single-electrode voltageclamp technique was used to characterize voltage-gated Ca currents in dissociated Lymnaea heart ventricular cells. In the presence of 30 mM tetraethylammonium (TEA), two distinct Ca currents could be identif...
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Cao, W., Q. Chen, U. D. Sohn, N. Kim, M. T. Kirber, K. M. Harnett, J. Behar, and P. Biancani. Ca-induced contraction of cat esophageal circular smooth muscle cells. Am J Physiol Cell Physiol 280: C980–C992, 2001.— ACh-induced contraction of esophageal circular muscle (ESO) depends on Ca influx and activation of protein kinase Ce (PKCe). PKCe, however, is known to be Ca independent. To determine...
متن کاملMyogenic contraction in rat skeletal muscle arterioles: smooth muscle membrane potential and Ca signaling
Kotecha, Neela, and Michael A. Hill. Myogenic contraction in rat skeletal muscle arterioles: smooth muscle membrane potential and Ca signaling. Am J Physiol Heart Circ Physiol 289: H1326–H1334, 2005. First published April 29, 2005; doi:10.1152/ajpheart.00323.2005.—The present studies examined relationships between intraluminal pressure, membrane potential (Em), and myogenic tone in skeletal mus...
متن کاملMyogenic contraction in rat skeletal muscle arterioles: smooth muscle membrane potential and Ca(2+) signaling.
The present studies examined relationships between intraluminal pressure, membrane potential (E(m)), and myogenic tone in skeletal muscle arterioles. Using pharmacological interventions targeting Ca(2+) entry/release mechanisms, these studies also determined the role of Ca(2+) pathways and E(m) in determining steady-state myogenic constriction. Studies were conducted in isolated and cannulated ...
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ژورنال
عنوان ژورنال: British Journal of Pharmacology
سال: 1984
ISSN: 0007-1188
DOI: 10.1111/j.1476-5381.1984.tb10735.x