[Effect of various biologically active substances on the tonus of smooth muscle cells of the arteries of the diencephalon].
The direct action of biologically active substances on the smooth muscle cells tone was studied in isolated segments of the cow diencephalic arteries. The serotonin, histamine, vasopressin, potassium ions were found to induce a dose-dependent increase of the smooth muscles tone. Weak responses to oxytocin and noradrenaline were revealed.
D000818:Animals; D002417:Cattle; D002536:Cerebral Arteries / Q000187:drug effects*; D004027:Diencephalon / Q000098:blood supply*; D006632:Histamine / Q000494:pharmacology; D066298:In Vitro Techniques; D009129:Muscle Tonus / Q000187:drug effects; D009131:Muscle, Smooth, Vascular / Q000187:drug effects*; D009638:Norepinephrine / Q000494:pharmacology; D010121:Oxytocin / Q000494:pharmacology; D010909:Pituitary Hormones, Posterior / Q000494:pharmacology; D011188:Potassium / Q000494:pharmacology; D012701:Serotonin / Q000494:pharmacology
D010909:Pituitary Hormones, Posterior; D012701:Serotonin; D010121:Oxytocin; D006632:Histamine; D011188:Potassium; D009638:Norepinephrine
Vliianie nekotorykh biologicheski aktivnykh veshchestv na tonus gladkomyshechnykh kletok arteriĭ promezhutochnogo mozga.