Alpha-thioglycerol sensitive excitatory oxytocin receptors in fowl rectum.
The selective antagonism of the excitatory responses of oxytocin by alpha-thioglycerol and its potentiation by Mg++ indicate the presence of specific oxytocin receptors in fowl rectum. In addition, the sensitivity of the rectum to very small doses of oxytocin suggests a possible facilitatory role of neurohypophyseal hormones in oviposition.
D000818:Animals; D002645:Chickens / Q000502:physiology*; D004305:Dose-Response Relationship, Drug; D004386:Duodenum; D005260:Female; D005990:Glycerol / Q000031:analogs & derivatives* / Q000494:pharmacology; D008274:Magnesium / Q000494:pharmacology; D008297:Male; D009119:Muscle Contraction / Q000187:drug effects*; D009130:Muscle, Smooth / Q000187:drug effects*; D010121:Oxytocin / Q000037:antagonists & inhibitors*; D011956:Receptors, Cell Surface / Q000187:drug effects*; D018045:Receptors, Oxytocin; D012007:Rectum; D013438:Sulfhydryl Compounds / Q000494:pharmacology
D011956:Receptors, Cell Surface; D018045:Receptors, Oxytocin; D013438:Sulfhydryl Compounds; D010121:Oxytocin; C009465:thioglycerol; D008274:Magnesium; D005990:Glycerol