Article (Scientific journals)
Changes in testosterone metabolism by the brain and cloacal gland during sexual maturation in the Japanese quail (Coturnix coturnix japonica).
Balthazart, Jacques; Schumacher, M.
1984In Journal of Endocrinology, 100 (1), p. 13-8
Peer Reviewed verified by ORBi
 

Files


Full Text
70_ JB&MS JEndo1984.pdf
Publisher postprint (918.33 kB)
Request a copy

All documents in ORBi are protected by a user license.

Send to



Details



Keywords :
17-Hydroxysteroid Dehydrogenases/metabolism; Androstane-3,17-diol/metabolism; Androstenedione/metabolism; Animals; Brain/metabolism; Cloaca/metabolism; Coturnix/metabolism; Dihydrotestosterone/metabolism; Female; Hypothalamus/metabolism; Luteinizing Hormone/blood; Male; Oxidoreductases/metabolism; Pituitary Gland, Anterior/metabolism; Preoptic Area/metabolism; Quail/metabolism; Sexual Maturation; Testosterone/metabolism
Abstract :
[en] Testosterone metabolism in the brain and pituitary and cloacal glands of male and female Japanese quail was studied in vitro during sexual maturation (from 1 day to 5 weeks after hatching). The production of 5 alpha-dihydrotestosterone in the hyperstriatum and cloacal gland and that of androstenedione in the cloacal gland of males was highest at 1 day after hatching, which could be related to the peak of plasma androgens previously demonstrated in neonatal quail. 5 beta-Reductase activity was very high in the brain, but not the pituitary or cloacal glands of young chicks and decreased markedly, especially in the hypothalamus, during sexual maturation. As 5 beta-reduced metabolites of testosterone are inactive androgens, it is suggested that the decrease of 5 beta-reductase activity with age corresponds to a potentiation of the effects of testosterone at the level of the brain.
Disciplines :
Zoology
Endocrinology, metabolism & nutrition
Author, co-author :
Balthazart, Jacques  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Schumacher, M.
Language :
English
Title :
Changes in testosterone metabolism by the brain and cloacal gland during sexual maturation in the Japanese quail (Coturnix coturnix japonica).
Publication date :
1984
Journal title :
Journal of Endocrinology
ISSN :
0022-0795
eISSN :
1479-6805
Publisher :
Society for Endocrinology, United Kingdom
Volume :
100
Issue :
1
Pages :
13-8
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 05 February 2014

Statistics


Number of views
44 (1 by ULiège)
Number of downloads
1 (1 by ULiège)

Scopus citations®
 
27
Scopus citations®
without self-citations
11
OpenCitations
 
26

Bibliography


Similar publications



Contact ORBi