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백서자궁(白鼠子宮)의 Adrenotropic Receptor에 관(關)한 추보(追補)
홍기환(Hong, Ki-Whan),김규태(Kim, Kyu-Tae),이종사(Lee, Chong-Sa) 대한약리학회 1967 대한약리학잡지 Vol.3 No.1
Supplemental studies were made on the adrenotropic receptors of the rat uterus, using adrenergic activators such as phenylephrine, norepinephrine, epinephrine, and isoproterenol and adrenergic blocking agents such as phenoxybenzamine and inderal. The studies have revealed the following results : 1. Phenylephrine, norepinephrine, epinephrine, and isoproterenol inhibited the spontaneous motility of the isolated rat uterus in the following order : Isoproterenol>epinephrine>norepinephrine>phenylephrine. 2. The inhibitory responses of the isolated rat uterus to phenylephrine and epinephrine were abolished by the pretreatment with phenoxybenzamine. 3. The inhibitory responses of the isolated rat uterus to isoproterenol and epinephrine were not affected by phenoxybenzamine. 4. The motility of the isolated rat uterus pretreated with inderal was stimulated by phenylephrine, norepinephrine and epinephrine. 5. The inhibitory responses of the isolated rat uterus to isoproterenol were abolished by the pretreatment with inderal. 6. The motility of the isolated rat uterus pretreated with inderal and phenoxybenzamine was not affected by phenylephrine, norepinephrine and epinephrine. 7. It is, therefore, concluded that the rat uterus has both alpha excitatory and beta inhibitory receptors, with beta inhibitory receptors predominating.