Correlation between the sexually dimorphic aromatase of the preoptic area and sexual behavior in quail: effects of neonatal manipulations of the hormonal milieu.

Archives internationales de physiologie et de biochimie
J Balthazart

Abstract

The aromatase of the preoptic area is significantly more active in males than in females. This sex dimorphism in enzyme activity is still found in birds that have been gonadectomized and treated with a same dose of testosterone. This suggests that the sex difference is not the result of a differential activation by the adult hormonal environment but rather is organized neonatally by steroid hormones. As the central aromatization of testosterone is a limiting step in the activation of copulatory behavior by testosterone, the lower aromatase activity in the preoptic area of females might be responsible, at least in part, for their lower sensitivity to the activating effects of testosterone on behavior. Three experiments were carried out to determine whether early manipulations of the hormonal environment, which are known to differentiate sexual behavior, also affect in a permanent way the aromatase activity in the preoptic area. Injection of estradiol benzoate into male embryos on day 9 of incubation decreased the preoptic aromatase activity in parallel to its demasculinizing effect on behavior. Unexpectedly the same treatment tended to increase enzyme activity in females so that the physiological relevance of the observed enzyma...Continue Reading

References

Dec 1, 1978·Hormones and Behavior·R E Hutchison
Mar 1, 1975·Journal of Comparative and Physiological Psychology·E K Adkins
Mar 1, 1989·Hormones and Behavior·M SchumacherJ Balthazart
Feb 16, 1988·Brain Research·M SchumacherJ B Hutchison
Apr 9, 1986·Brain Research·M Schumacher, J Balthazart
Dec 1, 1986·The Journal of Endocrinology·P SöderstenJ A Gustafsson
Feb 28, 1986·Neuroscience Letters·C Viglietti-PanzicaJ Balthazart
Oct 1, 1972·Journal of Comparative and Physiological Psychology·E K Adkins, N T Adler
Aug 1, 1983·General and Comparative Endocrinology·J BalthazartM A Ottinger
Feb 1, 1982·The Journal of Endocrinology·H F Urbanski, B K Follett

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Citations

Jan 1, 1991·The Journal of Steroid Biochemistry and Molecular Biology·J Balthazart
Apr 1, 1997·The Journal of Steroid Biochemistry and Molecular Biology·J Balthazart
May 12, 2011·PloS One·Charlotte A CornilThierry D Charlier
Aug 27, 2014·General and Comparative Endocrinology·Charlotte A CornilJacques Balthazart
Oct 19, 2010·General and Comparative Endocrinology·Cornelia VoigtJacques Balthazart
Mar 4, 2011·Journal of Neuroendocrinology·A T M Konkle, J Balthazart
Jul 19, 2005·Brain Research·Alicia Garcia-FalguerasAntonio Guillamon
Jan 5, 2011·Physiology & Behavior·Randolph W KrohmerRobert T Mason

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