La Tour du Valat

Institut de recherche pour la conservation des zones humides méditerranéennes

Titre :	Steroids in the avian brain: heterogeneity across space and time (2015)
Titre original:	Steroids in the avian brain
Auteurs :	Barney A. Schlinger, Auteur
Type de document :	Article
Dans :	Journal of Ornithology (156(1) 2015/03/14)
Article en page(s) :	419-424
Langues:	Anglais
Résumé :	Sex steroids influence a diversity of neural and behavioral endpoints in birds, including some that have little to do with reproduction per se. Recent advances in neurochemistry and molecular biology further indicate that the avian brain comprises a network of unique sex steroid microenvironments. Factors involved in steroid synthesis and metabolism are present in the avian brain with expression levels that vary from region to region and with activities that are, in some cases, subject to regulation over relatively slow or rapid time intervals. Advances in our ability to (1) isolate steroids from brain tissue and (2) precisely measure their concentrations reveal how steroid levels vary spatially and temporally. A full appreciation of sex steroid effects on the avian brain require not only measures of hormones in the blood but also an understanding of the numerous and varied mechanisms whereby the brain creates such a heterogeneous steroidal environment.
En ligne :	http://link.springer.com/article/10.1007/s10336-015-1184-7

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