Differences in the bimodal effects of morphine in the vas deferens of two strains of rats

D. Bustamante, H. F. Miranda

Resultado de la investigación: Contribución a una revistaArtículorevisión exhaustiva

1 Cita (Scopus)

Resumen

1. The effect of morphine on the smooth muscle of the isolated vas deferens of Sprague-Dawley and Wistar rats was studied. 2. Morphine produces pre- and post-synaptic effects on the contractile activity of the vasa deferentia. 3. The pre-synaptic action is an increase in the basal tension of the vas deferens. 4. The post-synaptic effect is a bimodal change in the height of the muscular twitch induced by neurogenic transmural stimulation. 5. Sprague-Dawley rats are more sensitivite than Wistar rats to the actions of morphine. 6. The morphine induced responses were antagonized by naloxone better in Wistar than Sprague-Dawley rats. 7. The findings obtained suggest a genetic difference in the synthesis of opioid subtype receptors.

Idioma originalInglés
Páginas (desde-hasta)349-352
Número de páginas4
PublicaciónComparative Biochemistry and Physiology. Part C, Comparative
Volumen100
N.º3
DOI
EstadoPublicada - 1991

Áreas temáticas de ASJC Scopus

  • Inmunología
  • Farmacología

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