Immunocytochemical demonstration of neuropeptide Y and luteinizing hormone-releasing hormone-immunoreactive structures in the organum vasculosum laminae terminalis of juvenile gilts.
Immunocytochemical investigations on the immature gilt organum vasculosum laminae terminalis showed extensive neuropeptide Y- and luteinizing hormone-releasing hormone-immunoreactive innervation of the organ. The luteinizing hormone-releasing hormone-containing varicose fibers ran along the organum vasculosum laminae terminalis in close association with blood vessels. The nerve processes originating from well-stained luteinizing hormone-releasing hormone-immunoreactive perikarya were distributed around the organum vasculosum laminae terminalis. The matrix of the organum vasculosum laminae terminalis was abundantly supplied by neuropeptide Y-immunoreactive varicose fibers. Numerous neuropeptide Y-immunoreactive terminals seemed to penetrate the ependymal lining of the organ. From these observations, it is concluded that there are favorable morphological conditions for secretion of neuropeptide Y into the cerebrospinal fluid of the third ventricle and release of luteinizing hormone-releasing hormone into fenestrated capillaries of the organ.
Całka
J
J
Department of Animal Anatomy, Agricultural and Technical University, Olsztyn, Poland.
Majewski
M
M
Kaleczyc
J
J
Lakomy
M
M
D000818:Animals; D000918:Antibody Specificity; D001369:Axons / Q000378:metabolism; D002552:Cerebral Ventricles / Q000378:metabolism*; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000134:cerebrospinal fluid / Q000276:immunology / Q000378:metabolism*; D007150:Immunohistochemistry; D009478:Neuropeptide Y / Q000134:cerebrospinal fluid / Q000276:immunology / Q000378:metabolism*; D013552:Swine
D009478:Neuropeptide Y; D007987:Gonadotropin-Releasing Hormone