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[Two types of electromechanical coupling in myocardial myocytes]
1Zakładu Fizjologii Klinicznej Centrum Medycznego Kształcenia Podyplomowego w Warszawie.
Wiadomosci Lekarskie (Warsaw, Poland : 1960)
|May 1, 1990
Abstract:
Sarcoplasmic reticulum (SR) of isolated myocytes of guineapigs deprived of Ca2+ by means of short exposure of the cell to caffeine does not re-uptake Ca in the quiescent cell. In rat Ca2+ SR content is promptly recovered under the same experimental conditions. The results of this study confirm the two types of excitation-contraction coupling in isolated myocyes of gineapig and rat hearts: without Ca uptake and with Ca uptake between excitations, respectively.