Intracellular calcium and Na+-Ca2+ exchange current in isolated toad pacemaker cells

Journal of Physiology

Volumn 508, Issue 1, 1998, Pages 153-166

  Ju, Yue Kun ^a   Allen, David G ^a  

^a UNIVERSITY OF SYDNEY   (Australia)

Author keywords

[No Author keywords available]

Indexed keywords

CAFFEINE; CALCIUM ION; DICHLOROBENZAMIL; ETHYLENE GLYCOL 1,2 BIS(2 AMINOPHENYL) ETHER N,N,N',N' TETRAACETIC ACID; INDO 1; NICKEL; RYANODINE; SODIUM ION; QUIN 2 AM;

ACTION POTENTIAL; ANIMAL CELL; ARTICLE; CALCIUM CELL LEVEL; CALCIUM TRANSPORT; CONTROLLED STUDY; DIASTOLE; HEART MUSCLE CONDUCTION SYSTEM; NONHUMAN; PRIORITY JOURNAL; SARCOPLASMIC RETICULUM; SINUS VENOSUS; SODIUM CALCIUM EXCHANGE; SYSTOLE; TOAD; ANURA; BUFO MARINUS; CELL ISOLATION; EXTRACELLULAR CALCIUM; FIRING RATE; ION CURRENT; PACEMAKER NERVE CELL; SODIUM CALCIUM EXCHANGE CURRENT;

EID: 0032056007     PISSN: 00223751     EISSN: None     Source Type: Journal    
DOI: 10.1111/j.1469-7793.1998.153br.x     Document Type: Article

References (41)

1. ALLEN, D. G., EISNER, D. A., LAB, M. J. & ORCHARD, C. H. (1983). The effects of low sodium solutions on intracellular calcium concentration and tension in ferret ventricular muscle. Journal of Physiology 345, 391-407.
2. 2+ release channel complex. Journal of Biological Chemistry 264, 1329-1335.
3. 2+ levels in myotubes grown from the skeletal muscle of dystrophic (mdx) and normal mice. Journal of Physiology 460, 1-13.
4. BARRY, P. H. & LYNCH, J. W. (1991). Liquid junction potentials and small cell effects in patch-clamp analysis. Journal of Membrane Biology 121, 101-117.
5. 2+] in intact rabbit cardiac myocytes. Biophysical Journal 68, 1453-1460.
6. BASSANI, R. A., BASSANI, J. W., LIPSIUS, S. L. & BERS, D. M. (1997). Diastolic SR Ca efflux in atrial pacemaker cells and Ca-overloaded myocytes. American Journal of Physiology 273, H886-892
7. BOIS, P. & LENFANT, J. (1991). Evidence for two types of calcium currents in frog cardiac sinus venosus cells. Pflügers Archiv 417, 591-596.
8. BROWN, H. F., KIMURA, J., NOBLE, D., NOBLE, S. J. & TAUPIGNON, A. (1984). The ionic currents underlying pacemaker activity in rabbit sino-atrial node: experimental results and computer simulations. Proceedings of the Royal Society B 222, 329-347.
9. 2+ exchanger in cardiac myocytes. American Journal of Physiology 257, C147-152.
10. CAMPBELL, D. L., RASMUSSON, R. L. & STRAUSS, H. C. (1992). Ionic-current mechanisms generating vertebrate primary cardiac pacemaker activity at the single cell level: an integrative view. Annual Review of Physiology 54, 279-302.
11. CHAPMAN, R. A. (1979). Excitation-contraction coupling in cardiac muscle. Progress in Biophysics and Molecular Biology 35, 1-52.
12. 2+ buffering in rabbit ventricular myocytes. American Journal of Physiology 270, C192-199.
13. DIFRANCESCO, D. (1993). Pacemaker mechanisms in cardiac tissue. Annual Review of Physiology 55, 455-472.
14. DIFRANCESCO, D. & NOBLE, D. (1985). A model of cardiac electrical activity incorporating ionic pumps and concentration changes. Philosophical Transactions of the Royal Society B 307, 3-98.
15. 2+] during inotropic interventions in isolated rat myocytes. Journal of Physiology 437, 351-375.
16. 2+ indicators with greatly improved fluorescence properties. Journal of Biological Chemistry 260, 3440-3450.
17. GUO, J., ONO, K. & NOMA, A. (1995). A sustained inward current activated at the diastolic potential range in rabbit sino-atrial node cells. Journal of Physiology 483, 1-13.
18. HAGIWARA, N., IRISAWA, H. & KAMEYAMA, M. (1988). Contribution of two type of calcium currents to the pacemaker potentials of rabbit sinoatrial node cells. Journal of Physiology 395, 233-253.
19. HAGIWARA, N., IRISAWA, H., KASANOKI, H. & HOSODA, S. (1992). Background current in sino-atrial node cells of the rabbit heart. Journal of Physiology 448, 53-72.
20. 2+ of the hyperpolarization-activated inward current in rabbit single sino-atrial node cells. Journal of Physiology 409, 121-141.
21. HANCOX, J. C., LEVI, A. J. & BROOKSBY, P. (1994). Intracellular calcium transients recorded with Fura-2 in spontaneously active myocytes isolated from the atrioventricular node of the rabbit heart. Proceedings of the Royal Society B 255, 99-105.
22. IRISAWA, H., BROWN, H. F. & GILES, W. (1993). Cardiac pacemaking in the sinoatrial node. Physiological Reviews 73, 197-227.
23. JANVIER, N. C. & BOYETT, M. R. (1996). The role of Na-Ca exchange current in the cardiac action potential. Cardiovascular Research 32, 69-84.
24. JU, Y. K., SAINT, D. A., HIRST, G. D. & GAGE, P. W. (1995). Sodium currents in toad cardiac pacemaker cells. Journal of Membrane Biology 145, 119-128.
25. JU, Y. K., SAINT, D. A. & GAGE, P. W. (1996). Tetrodotoxin-sensitive inactivation-resistant sodium channels in pacemaker cells influence heart rate. Pflügers Archiv 431, 868-875.
26. KLEYMAN, T. R. & CRAGOE, E. J. (1988). Amiloride and its analogs as tools in the study of ion transport. Journal of Membrane Biology 105, 1-21.
27. LI, J., QU, J. & NATHAN, R. D. (1997). Ionic basis of ryanodine's negative chronotropic effect on pacemaker cells isolated from the sinoatrial node. American Journal of Physiology 273, H2481-2489
28. 2+ concentration in living single rat cardiac myocytes. American Journal of Physiology 261, H1123-1134.
29. MOORE, L. E., CLARK, R,. B., SHIBATA, E. F. & GILES, W. R. (1986). Comparison of steady-state electrophysiological properties of isolated cells from bullfrog atrium and sinus venosus. Journal of Membrane Biology 89, 131-138.
30. + current in isolated membrane patches of guinea pig ventricular myocytes. Circulation Research 74, 96-104.
31. O'NEILL, S. C., VALDEOLMILLOS, M. & EISNER, D. A. (1988). The effects of nickel on contraction and membrane current in isolated rat myocytes. Quarterly Journal of Experimental Physiology 73, 1017-1020.
32. RASMUSSON, R. L., CLARK, J. W., GILES, W. R., SHIBATA, E. F. & CAMPBELL, D. L. (1990). A mathematical model of a bullfrog cardiac-pacemaker cell. American Journal of Physiology 259, H352-369
33. RIGO, L. & TERRAR, D. A. (1996). Possible role of calcium release from the sarcoplasmic reticulum in pacemaking in guinea-pig sino-atrial node. Experimental Physiology 81, 877-880.
34. RUBENSTEIN, D. S. & LIPSIUS, S. L. (1989). Mechanisms of automaticity in subsidiary pacemakers from cat right atrium. Circulation Research 64, 648-657.
35. 2+ exchanger in mammalian cardiac myocytes. Journal of Physiology 488, 623-631.
36. TRAFFORD, A. W., DIAZ, M. E., O'NEILL, S. C. & EISNER, D. A. (1995). Comparison of subsarcolemmal and bulk calcium concentration during spontaneous calcium in rat ventricular myocytes. Journal of Physiology 488, 577-586.
37. TSENG, G. N. & BOYDEN, P. A. (1991). Different effects of intracellular Ca and protein kinase C on cardiac T and L Ca currents. American Journal of Physiology 261, H364-379.
38. VARRO, A., NEGRETTI, N., HESTER, S. B. & EISNER, D. A. (1993). An estimate of the calcium content of the sarcoplasmic reticulum in rat ventricular myocytes. Pflügers Archiv 423, 158-160.
39. i in intact single fibres from mouse muscle. Journal of Physiology 466, 611-628.
40. WESTERBLAD, H. & ALLEN, D. G. (1996). Intracellular calibration of the calcium indicator indo-1 in isolated fibers of Xenopus muscle. Biophysical Journal 71, 908-917.
41. 2+exchange current in latent pacemaker cells isolated from cat right atrium. Journal of Physiology 466, 263-285.