Vol. 56 No. 1 (1996), Articles
Vol. 56 No. 1 (1996)

The effect of hypoxia and ouabain on the muscle resting potential of Periplaneta americana L.

Articles
Published 1996-03-31
Barbara Grajpel
Department of Animal Physiology, Institute of Biology and Environment Protection, N. Copernicus University, 9 Gagarin St., 87-100 Toruń, Poland
Przemysław Grodzicki
Department of Animal Physiology, Institute of Biology and Environment Protection, N. Copernicus University, 9 Gagarin St., 87-100 Toruń, Poland
Leszek Janiszewski
Department of Animal Physiology, Institute of Biology and Environment Protection, N. Copernicus University, 9 Gagarin St., 87-100 Toruń, Poland
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Abstract

We have studied the effect of hypoxia and ouabain on the muscle resting potential (RP) of the cockroach Periplaneta americana L. The experiments were done in insects reared either in normoxic or hypoxic conditions and treated, or not treated, with ouabain. Hypoxic conditions decreased the RP by about. 11.6 mV. Ouabain decreased the RP by about 8.3 mV (ouabain 10(-5) mol/l) or 12.3 mV (ouabain 5 x 10(-5) mol/l). Hypoxia and ouabain decreased the RP by about 28.5 mV (ouabain 10(-5) mol/l) or 31.3 mV (ouabain 5 x 10(-5) mol/l).
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Copyright (c) 1996 Acta Neurobiologiae Experimentalis

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