3 rezultatima
In this work, the potential vasorelaxant activity of (+)-nantenine, an alkaloid isolated from Platycapnos spicata, was studied for the first time in rat aorta. (+)-Nantenine (3 - 30 microM) totally relaxed, in a concentration-dependent manner and with almost equal effectiveness, the contractions
In this work, the potential activity of (+)-nantenine (a natural aporphin alkaloid) in several rat isolated tissues was studied. In rat isolated intact aorta, (+)-nantenine (0.05 - 0.5 microM) competitively antagonized with almost equal effectiveness the contractions produced by phenylephrine (PE)
This is the first study of the in vivo potential activity of (+)-nantenine (a natural aporphinoid alkaloid) on the rat cardiovascular system. In anaesthetized normotensive rats, acute intravenous ( i. v.) administration of (+)-nantenine (3 - 6 mg/kg) produced a dose-dependent fall in mean arterial