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

100%

Grajpel B., Grodzicki P., Janiszewski L.

Acta Neurobiologiae Experimentalis

1996

vol. 56

issue 1

103-106

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 amd ouabain decreased the RP by about 28.5 mV ( ouabian 10(-5) mol/l) or 31.3 mV ( ouabain 5 x 10(-5) mol/l).

Neurotoxin induced modification of a cockroach central nervous system bioelectrical activity

76%

Stankiewicz M., Panek I., Grajpel B., Tegowska E., Kadziela W., Pelhate M.

Postępy Higieny i Medycyny Doświadczalnej

2000

vol. 54

issue 3

371-379

Natural neurotoxins are promising molecules in the actual search for the development of alternative pest management since chemical insecticides pose unacceptable risks to the environment and to health. The aim of the article is to describe the application of two electrophysiological methods (double-oil-gap technique used on cockroach isolated giant axon and microelectrode technique used on cockroach neurosecretory DUM cells in situ) to study neurotoxin effects on insect nervous system function.

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1 Acta Neurobiologiae Experimentalis

1 Postępy Higieny i Medycyny Doświadczalnej

1 2000

1 1996

2 Grajpel B.

1 Grodzicki P.

1 Janiszewski L.

1 Kadziela W.

1 Panek I.

1 Pelhate M.

1 Stankiewicz M.

1 Tegowska E.

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

Neurotoxin induced modification of a cockroach central nervous system bioelectrical activity