Effects of [Na+](o), [Ca2+](o), and cyclopiazonic acid on decline of post-extrasystolic potentiation and twitch kinetics in guinea-pig and human myocardial preparations

Acta Physiologica Scandinavica

Volumn 166, Issue 3, 1999, Pages 195-201

  Asgrimsson H J ^a   Wohlfart, B ^b   Brandt, J ^b   Jóhannsson, Magnús ^a  

^a UNIVERSITY OF ICELAND   (Iceland)

^b LUND UNIVERSITY HOSPITAL   (Sweden)

Author keywords

Calcium; Cyclopiazonic acid; Guinea pig; Myocardium; Post extrasystolic potentiation; Recirculation; Relaxation; Sodium

Indexed keywords

CALCIUM ION; CYCLOPIAZONIC ACID; SODIUM ION;

ARTICLE; CALCIUM CELL LEVEL; CALCIUM TRANSPORT; CONTROLLED STUDY; EXTRASYSTOLE; GUINEA PIG; HEART ATRIUM MUSCLE; HEART MUSCLE; HEART MUSCLE CONTRACTILE FORCE; HEART MUSCLE RELAXATION; HEART VENTRICLE WALL; HUMAN; HUMAN TISSUE; MUSCLE TWITCH; NONHUMAN; PRIORITY JOURNAL; SODIUM TRANSPORT;

ACTION POTENTIALS; ANIMALS; ANTI-ARRHYTHMIA AGENTS; CALCIUM; GUINEA PIGS; HEART; HUMANS; INDOLES; MYOCARDIAL CONTRACTION; SODIUM;

EID: 0032767401     PISSN: 00016772     EISSN: None     Source Type: Journal    
DOI: 10.1046/j.1365-201x.1999.00563.x     Document Type: Article

References (20)

1. Arlock, P., Wohlfaart, B., Morner, S.E. & Brandt, J. 1992. Force production in voltage-clamped human arterial muscle. Acta Physiol Scand 146, 31-39.
2. Asgrimsson, H., Johannsson, M. & Arnardottir, S.A. 1995. Excitation and contraction in arterial and ventricular myocardium of the guinea-pig. Acta Physiol Scand 153, 133-141.
3. 2+ exchanger by phenylephrine, angiotensin II and endothelin 1. J Mol Cell Cardiol 28, 11-17.
4. Barry, W.H. & Bridge, J.H. 1993. Intracellular calcium homeostasis in cardiac myocytes. Circulation 87, 1806-1815.
5. Bers, D.M. 1991. Excitation-Contraction Coupling and Cardiac Contractile Force. Kluwer Academic Publishers, Boston.
6. Bossen, E.H., Sommer, J.R. & Waugh, R.A. 1981. Comparative stereology of mouse atria. Tissue Cell 13, 71-77.
7. Coudray, N., Beregi, J.P., Lecarpentier, Y. & Chemla, D. 1993. Effects of isoproterenol on myocardial relaxation rate: influence of the level of load. Am J Physiol 265, H1645-H1653.
8. Hove-Madsen, L. & Bers, D.M. 1993. Passive Ca buffering and SR Ca uptake in permeabilized rabbit ventricular myocytes. Am J Physiol 264, C677-C686.
9. 2+ decay in potentiated contractions following multiple extrasystolic beats. Cell Calcium 18, 155-164.
10. Langer, G.A. 1992. Calcium and the heart: exchange at the tissue, cell, and organelle levels. Faseb J 6, 893-902.
11. Morner, S.E. & Wohlfart, B. 1990. Intropic mechanisms of amrinone in papillary muscles from guinea-pig hearts. Acta Physiol Scand 139, 575-581.
12. Noble, M.I., Arlock, P., Gath, J., Grainger, N., Ravens, U. & Wohlfart, B. 1993. Mechanisms of excitation-contraction coupling studied using the principle of transient perturbation. Cardiovasc Res 27, 1758-1765.
13. Pery-Man, N., Chemla, D., Coirault, C., Suard, I., Riou, B. & Lecarpentier, Y. 1993. A comparison of cyclopiazonic acid and ryanodine effects on cardiac muscle relaxation. Am J Physiol 265, H1364-H1372.
14. Ragnarsdottir, K., Wohlfart, B. & Johannson, M. 1982. Mechanical restitution of the rat papillary muscle. Acta Physiol Scand 115, 183-191.
15. Takahashi, S., Kato, Y., Adachi, M., Agata, N., Tanaka, H. & Shigenobu, K. 1995. Effects of cyclopiazonic acid on rat myocardium: inhibition of calcium uptake into sarcoplasmic reticulam. J Pharmacol Exp Ther 272, 1095-1100.
16. i in aequorin loaded ferret cardiac muscle. Cardiovasc Res 28, 40-46.
17. Van Winkle, W.B. 1986. The structure of striated muscle sarcoplasmic reticulum. In: Entman, M.L. and van Winkle, W.B. (eds) Sarcoplasmic Reticulum in Muscle Physiology, pp. 17-45. CRC Press, Boca Raton, FL.
18. 2+] in mammalian ventricle: dynamic control by cellular processes. Annu Rev Physiol 52, 467-485.
19. Wohlfart, B. 1979. Relationships between peak force, action potential duration and stimulus interval in rabbit myocardium. Acta Physiol Scand 106, 395-409.
20. Yard, N.J., Chiesi, M. & Ball, H.A. 1994. Effect of cyclopiazonic acid, an inhibitor of sarcoplasmic reticulum Ca (2+)-ATPase, on the frequency-dependence of the contraction-relaxation cycle of the guinea-pig isolated atrium. Br J Pharmacol 113, 1001-1007.