Article (Scientific journals)
Effects of Alpha-Methyl-Para-Tyrosine on Monoamine Levels in the Japanese Quail: Sex Differences and Testosterone Effects
Balthazart, Jacques; Foidart, Agnès; Sante, P. et al.
1992In Brain Research Bulletin, 28 (2), p. 275-88
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Abstract :
[en] Experiments were performed to obtain more information on the regulation by steroids of catecholaminergic systems in the brain of Japanese quail. Dose-response and time-response experiments were first performed to determine optimal conditions for measuring turnover in the quail brain. The norepinephrine and dopamine turnover were then estimated in microdissected brain nuclei of birds that were either sexually mature or gonadectomized or gonadectomized and treated with testosterone. Two major facts that bear direct relationship with the control of masculine reproductive behavior were demonstrated. On one hand, the dopamine turnover in the medial preoptic nucleus, a sexually dimorphic brain structure which is critically implicated in the control of copulatory behavior was much higher in male than in female quail irrespective of the hormonal condition of the birds. On the other hand, norepinephrine concentrations appeared to be higher in several nuclei of the female brain by comparison with males. These sex differences might represent part of the causal factors that underlie the sex dimorphism in reproductive behavior in quail.
Disciplines :
Pharmacy, pharmacology & toxicology
Zoology
Neurosciences & behavior
Author, co-author :
Balthazart, Jacques  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Foidart, Agnès ;  Université de Liège - ULiège > Services généraux (Faculté de médecine) > Service administratif de la Faculté (Médecine)
Sante, P.
Hendrick, J. C.
Language :
English
Title :
Effects of Alpha-Methyl-Para-Tyrosine on Monoamine Levels in the Japanese Quail: Sex Differences and Testosterone Effects
Publication date :
February 1992
Journal title :
Brain Research Bulletin
ISSN :
0361-9230
eISSN :
1873-2747
Publisher :
Elsevier, Netherlands
Volume :
28
Issue :
2
Pages :
275-88
Peer reviewed :
Peer Reviewed verified by ORBi
Available on ORBi :
since 18 November 2009

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