[Effect of light negative hydroaeroions on electromagnetic coupling of frog Rana ridibunda auricle].
It is shown that negative hydroaeroions cause a decrease of the systole strength of freshly prepared auricle and activation of the tired auricle; a decrease of the amplitude and length of the heart trabecula action potentials due to depression of slow input Ca2+ current; shift of the threshold of activation of fast input Na+ current to low potentials; partly elimination of the rise of the auricle systole strength under novodrine. The latter effects were not observed under atropine and indomethacin.
Andreeva
L A
LA
Bakaneva
V F
VF
Grigorenko
E V
EV
Kondrashova
M N
MN
D000200:Action Potentials / Q000187:drug effects; D000818:Animals; D001285:Atropine / Q000494:pharmacology; D002118:Calcium / Q000502:physiology; D006878:Hydroxides / Q000378:metabolism / Q000494:pharmacology*; D007213:Indomethacin / Q000494:pharmacology; D009200:Myocardial Contraction / Q000187:drug effects; D011895:Rana ridibunda; D012964:Sodium / Q000502:physiology; D013268:Stimulation, Chemical
D006878:Hydroxides; D001285:Atropine; D012964:Sodium; D002118:Calcium; D007213:Indomethacin
Deĭstvie legkikh otritsatel'nykh gidroaéroionov na élektromekhanicheskoe sopriazhenie predserdiia liagushki Rana ridibunda.