.... Fig. 4. Changes in [Ca2+]i (A), pHi (B) and proton secretion rate (C) of trout hepatocytes upon exposure of cells to Ca2+-free medium containing 0.5 mmol l–1 EGTA followed by addition of 25 μmol l–1 of the intracellular Ca2+ chelating agent BAPTA-AM. The effect of exposure to 25 μmol l–1BAPTA-AM...

.... Fig. 4. Oscillation of intracellular Ca2+ concentration ([Ca2+]i) in a region of the atrial myocardium. The [Ca2+]i was determined by measuring the brightness of all pixels (N=1200) in the region, and the mean brightness ± s.e.m. was obtained. Error bars were all smaller than the size of the symbol...