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Sokolova NA, Krasil'nikova VG, Ashmarin IP. Atropinopodobnoe ne snimaemoe naloksonom deĭstvie opioida dermorfina na inotropnye éffekty atsetilkholina. [The atropine-like action, not removed by naloxone, of the opioid dermorphin on the inotropic effects of acetylcholine]. Nauchnye Doki Vyss Shkoly Biol Nauki. 1990;(10):80-5
Sokolova, N. A., Krasil'nikova, V. G., & Ashmarin, I. P. (1990). Atropinopodobnoe ne snimaemoe naloksonom deĭstvie opioida dermorfina na inotropnye éffekty atsetilkholina. [The atropine-like action, not removed by naloxone, of the opioid dermorphin on the inotropic effects of acetylcholine]. Nauchnye doklady vysshei shkoly. Biologicheskie nauki, (10), 80-5.
Sokolova, N A, et al. "Atropinopodobnoe ne snimaemoe naloksonom deĭstvie opioida dermorfina na inotropnye éffekty atsetilkholina." [The atropine-like action, not removed by naloxone, of the opioid dermorphin on the inotropic effects of acetylcholine]. Nauchnye doklady vysshei shkoly. Biologicheskie nauki vol. ,10 (1990): 80-5.
Sokolova NA, Krasil'nikova VG, Ashmarin IP. Atropinopodobnoe ne snimaemoe naloksonom deĭstvie opioida dermorfina na inotropnye éffekty atsetilkholina. [The atropine-like action, not removed by naloxone, of the opioid dermorphin on the inotropic effects of acetylcholine]. Nauchnye Doki Vyss Shkoly Biol Nauki. 1990;(10):80-5. Russian. PMID: 2275946.
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Nauchnye Doki Vyss Shkoly Biol Nauki. 1990;(10):80-5.

[The atropine-like action, not removed by naloxone, of the opioid dermorphin on the inotropic effects of acetylcholine].

Nauchnye doklady vysshei shkoly. Biologicheskie nauki

[Article in Russian]
N A Sokolova, V G Krasil'nikova, I P Ashmarin

PMID: 2275946

Abstract

Opioid dermorphin induced a negative inotropic effect on the isolated perfused by Straube frog's heart, this effect was blocked by naloxone. On the background of dermorphin negative inotropic effect acetylcholine inhibited the ventricular contractile activity to the same degree as in the control experiments before dermorphin injection. But after the combined infusion of naloxone and dermorphin removed the opioid inotropic effect, the negative inotropic effect of acetylcholine became significantly weaker than in the control. It has been concluded that there are opiate receptors in the frog's ventricular myocardium, their activation leads to the negative inotropic effect. Dermorphin may act like atropine on the inotropic effects of acetylcholine, this action doesn't depend on the opiate receptors activation.

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