Article (Scientific journals)
The alpha-fetoprotein knock-out mouse model suggests that parental behavior is sexually differentiated under the influence of prenatal estradiol.
Keller, Matthieu; Pawluski, Jodi; Brock, Olivier et al.
2010In Hormones and Behavior
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Keywords :
hormones; brain; behavior
Abstract :
[en] In rodent species, sexual differentiation of the brain for many reproductive processes depends largely on estradiol. This was recently confirmed again by using the α-fetoprotein knockout (AFP-KO) mouse model, which lacks the protective actions of α-fetoprotein against maternal estradiol and as a result represents a good model to determine the contribution of prenatal estradiol to the sexual differentiation of the brain and behavior. In the present study, we determined whether parental responses are differentiated prenatally under the influence of estradiol. It was found that AFP-KO females showed longer latencies to retrieve pups to the nest and also exhibited lower levels of crouching over the pups in the nest in comparison to WT females. Thus our results suggest that prenatal estradiol defeminizes the parental brain in mice.
Research center :
Giga-Neurosciences - ULiège
Disciplines :
Neurology
Endocrinology, metabolism & nutrition
Author, co-author :
Keller, Matthieu;  INRA > UMR85 Physiologie de la Reproduction et des Comportements
Pawluski, Jodi ;  Maastricht University (The Netherlands) > Faculty of Health, Medicine and Life Science > Department of Psychiatry and Neuropsychology
Brock, Olivier ;  Université de Liège - ULiège > Doct. sc. (biol. orga. & écol. - Bologne)
Douhard, Quentin ;  Université de Liège - ULiège > Génétique
Bakker, Julie  ;  Université de Liège - ULiège > Département des sciences biomédicales et précliniques > Biologie de la différenciation sexuelle du cerveau
Language :
English
Title :
The alpha-fetoprotein knock-out mouse model suggests that parental behavior is sexually differentiated under the influence of prenatal estradiol.
Publication date :
2010
Journal title :
Hormones and Behavior
ISSN :
0018-506X
eISSN :
1095-6867
Publisher :
Academic Press, San Diego, United States - California
Peer reviewed :
Peer Reviewed verified by ORBi
Funders :
NICHD - National Institutes of Health. Eunice Kennedy Shriver National Institute of Child Health and Human Development [US-MD] [US-MD]
Available on ORBi :
since 23 August 2010

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