Terminations of LHRH-immunoreactive fibers in the subfornical organ of the opossum: an ultrastructural study.
Electron microscopic immunocytochemical approaches were used to analyze LHRH-containing elements in the subfornical organ of the opossum, a species in which this input to the subfornical organ is prominent. Not only were LHRH synaptic specializations easily demonstrated in the subfornical organ, forming axo-dendritic and axo-axonal contacts, but also LHRH-immunoreactive fibers contacted astrocytic end-feet on fenestrated capillaries and were found in the subependymal layer. LHRH-carrying elements in the subfornical organ may be important for relating reproductive functions to body fluid balance.
Zheng
L M
LM
Rockefeller University, New York, N.Y.
Pfaff
D W
DW
Schwanzel-Fukuda
M
M
D000818:Animals; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000032:analysis*; D008297:Male; D008854:Microscopy, Electron; D009412:Nerve Fibers / Q000032:analysis / Q000648:ultrastructure*; D009490:Neurosecretory Systems / Q000648:ultrastructure*; D009893:Opossums / Q000033:anatomy & histology / Q000378:metabolism*; D013356:Subfornical Organ / Q000032:analysis / Q000648:ultrastructure*
D007987:Gonadotropin-Releasing Hormone