ISSN:
1432-0878
Keywords:
Corticotropin-releasing factor
;
Immunocytochemistry
;
Gilthead sea bream
;
Sparus aurata (Teleostei)
Source:
Springer Online Journal Archives 1860-2000
Topics:
Biology
,
Medicine
Notes:
Abstract The distribution of perikarya and fibers containing corticotropin-releasing factor (CRF) was studied in the brain of the teleost Sparus aurata by immunocytochemistry using the peroxidase-antiperoxidase method. Antisera against rat CRF, arginine vasotocin, and human adrenocorticotropin (ACTH) were used. Most CRF-immunoreactive neurons were located in the nucleus lateralis tuberis, but they were absent from the nucleus preopticus, which only contained arginine vasotocin neurons. Few CRF perikarya were identified in the nucleus preopticus periventricularis and in the mesencephalic tegmentum. A conspicuous bundle of immunoreactive fibers ran along the diencephalic floor and pituitary stalk to end near the cells of the hypophysial pars intermedia. No CRF was seen near the adenohypophysial rostral pars distalis. Our results suggest that, in Sparus aurata, CRF is a releasing factor for melanotropic cells. Its role as a releasing factor for ACTH is discussed.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00417875
