Identification of separate vasopressin-neurophysin II and oxytocin-neurophysin I containing nerve fibres in the external region of the bovine median eminence.
Immuno-enzyme histochemical investigations showed the presence, in the external region of the bovine median eminence, of accumulations of vasopressin-neurophysin II- and oxytocin-neurophysin I-complexes. These two hormone-neurophysin complexes are located in separate fine varicose nerve fibres. The results strongly plead against an important role of tanycytes in the transport of vasopressin, oxytocin and neurophysins from the cerebrospinal fluid to the hypophysial portal blood-vessels.
D000818:Animals; D002417:Cattle; D005260:Female; D006651:Histocytochemistry; D007030:Hypothalamo-Hypophyseal System / Q000378:metabolism*; D008473:Median Eminence / Q000378:metabolism*; D009474:Neurons / Q000378:metabolism*; D009481:Neurophysins / Q000378:metabolism*; D010121:Oxytocin / Q000378:metabolism*; D010544:Peroxidases; D014667:Vasopressins / Q000378:metabolism*
D009481:Neurophysins; D014667:Vasopressins; D010121:Oxytocin; D010544:Peroxidases