Article (Scientific journals)
Rapid changes in brain aromatase activity in the female quail brain following expression of sexual behaviour
de Bournonville, Catherine; Ball, G. F.; Balthazart, Jacques et al.
2017In Journal of Neuroendocrinology, 29 (11)
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Keywords :
Article; Coturnix japonica
Abstract :
[en] In male quail, oestrogens produced in the brain (neuro-oestrogens) exert a dual action on male sexual behaviour: they increase sexual motivation within minutes via mechanisms activated at the membrane but facilitate sexual performance by slower, presumably nuclear-initiated, mechanisms. Recent work indicates that neuro-oestrogens are also implicated in the control of female sexual motivation despite the presence of high circulating concentrations of oestrogens of ovarian origin. Interestingly, aromatase activity (AA) in the male brain is regulated in time domains corresponding to the slow “genomic” and faster “nongenomic” modes of action of oestrogens. Furthermore, rapid changes in brain AA are observed in males after sexual interactions with a female. In the present study, we investigated whether similar rapid changes in brain AA are observed in females allowed to interact sexually with males. A significant decrease in AA was observed in the medial preoptic nucleus after interactions that lasted 2, 5 or 10 minutes, although this decrease was no longer significant after 15 minutes of interaction. In the bed nucleus of the stria terminalis, a progressive decline of average AA was observed between 2 and 15 minutes, although it never reached statistical significance. AA in this nucleus was, however, negatively correlated with the sexual receptivity of the female. These data indicate that sexual interactions affect brain AA in females as in males in an anatomically specific manner and suggest that rapid changes in brain oestrogens production could also modulate female sexual behaviour. © 2017 British Society for Neuroendocrinology
Disciplines :
Neurosciences & behavior
Author, co-author :
de Bournonville, Catherine ;  GIGA Neurosciences, Research Group in Behavioral Neuroendocrinology, University of Liège, Liège, Belgium, Department of Psychological and Brain Sciences, University of Massachusetts, Amherst, MA, United States
Ball, G. F.;  Department of Psychology, University of Maryland, College ParkMD, United States
Balthazart, Jacques  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Département des sciences biomédicales et précliniques
Cornil, Charlotte  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Language :
English
Title :
Rapid changes in brain aromatase activity in the female quail brain following expression of sexual behaviour
Publication date :
2017
Journal title :
Journal of Neuroendocrinology
ISSN :
0953-8194
eISSN :
1365-2826
Publisher :
Blackwell Publishing Ltd
Volume :
29
Issue :
11
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NIMH - National Institute of Mental Health [US-MD]
ULiège - Université de Liège [BE]
Available on ORBi :
since 02 February 2018

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