Free cytosolic calcium during spontaneous contractions in smooth muscle of the guinea-pig mesotubarium

Abstract

The free intracellular calcium ion concentration ([Ca2+]i) was measured simultaneously with isometric force in strips of guinea-pig mesotubarium using the Fura-2 technique. During the relaxed period (5–15 min) between spontaneous contractions [Ca2+]i continues to decrease after full mechanical relaxation to reach a minimal level of 86±8 nM (n=9) just before… (More)
DOI: 10.1007/BF00370660

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