Cs+ inhibits spontaneous Ca2+ release from sarcoplasmic reticulum of skinned cardiac myocytes

American Journal of Physiology - Heart and Circulatory Physiology

Volumn 275, Issue 2 44-2, 1998, Pages

  Kawai, Makoto ^a   Hussain, Munir ^a   Orchard, Clive H ^a  

^a UNIVERSITY OF LEEDS   (United Kingdom)

Author keywords

Cardiac sarcoplasmic reticulum potassium channel; Cesium; Counterion; Cyclopiazonic acid; Voltage clamp

Indexed keywords

POTASSIUM CHANNEL;

ANIMAL CELL; ARTICLE; CALCIUM TRANSPORT; CONTROLLED STUDY; FEMALE; HEART DEPOLARIZATION; HEART MUSCLE CELL; NONHUMAN; POTASSIUM TRANSPORT; PRIORITY JOURNAL; RAT; SARCOPLASMIC RETICULUM; VOLTAGE CLAMP;

EID: 0031875849     PISSN: 03636135     EISSN: None     Source Type: Journal    
DOI: 10.1152/ajpheart.1998.275.2.h422     Document Type: Article

References (12)

1. Abramcheck, C. W., and P. M. Best. Physiological role and selectivity of the in situ potassium channel of the sarcoplasmic reticulum in skinned frog skeletal muscle fibers. J. Gen. Physiol. 93: 1-21, 1989.
2. Bezanilla, F., and C. M. Armstrong. Negative conductance caused by entry of sodium and cesium ions into the potassium channels of squid axons. J. Gen. Physiol. 60: 588-608, 1972.
3. 2+- and species-dependent systolic and diastolic contractile properties of intact muscle. J. Gen. Physiol. 88: 589-613, 1986.
4. Capogrossi, M. C., and E. G. Lakatta. Frequency modulation and synchronization of spontaneous oscillations in cardiac cells. Am. J. Physiol. 248 (Heart Circ. Physiol. 17): H412-H418, 1985.
5. Corondo, R., and C. Miller. Voltage-dependent caesium blockade of a cation channel from fragmented sarcoplasmic reticulum. Nature 280: 807-810, 1979.
6. 2+ release. J. Physiol. (Lond.) 501: 3-16, 1997.
7. Díaz, M. E., A. W. Trafford, S. C. O'Neill, and D. A. Eisner. A measurable reduction of s.r. Ca content follows spontaneous Ca release in rat ventricular myocytes. Pflügers Arch. 434: 852-854, 1997.
8. Duggan, P. F. Calcium uptake and associated adenosine triphosphatase activity in fragmented sarcoplasmic reticulum. J. Biol. Chem. 252: 1620-1627, 1977.
9. Fabiato, A. Two kinds of calcium-induced release of calcium from the sarcoplasmic reticulum of skinned cardiac cells. In: Excitation-Contraction Coupling in Skeletal, Cardiac and Smooth Muscle, edited by G. B. Frank, C. P. Bianchi, and H. E. D. J. ter Keurs. New York: Plenum, 1992, p. 245-262.
10. Fabiato, A., and F. Fabiato. Contractions induced by a calcium-triggered release of calcium from the sarcoplasmic reticulum of single skinned cardiac cells. J. Physiol. (Lond.) 249: 469-495, 1975.
11. 2+] during inotropic interventions in isolated rat myocytes. J. Physiol. (Lond.) 437: 351-375, 1991.
12. 2+ release. J. Physiol. (Lond.) 480: 411-421, 1994.