JEB -- Wang et al. 205 (19): 2957 Figure IG1

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Fig. 1. Low temperature increases intracellular free [Ca²⁺] markedly in resting cardiac myocytes from the rat, but not in those from the ground squirrel. The Ca²⁺ concentration was measured using the indo-1 fluorescence ratio as described in Wang and Zhou (1999b). Values are means ± S.E.M. (N=12 for rat, N=9 for ground squirrel; P<0.01 at 10°C).