Forebrain implants of estradiol stimulate maternal nest-building in ovariectomized rabbits

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:33:26Z
Fecha de publicación2005-01-01
ResumenIn rabbits, estradiol and progesterone (P) stimulate digging a maternal burrow while P withdrawal promotes straw-carrying. To investigate where such hormones act to regulate those activities, ovariectomized rabbits were implanted with estradiol benzoate (EB; Experiment 1) in the nucleus accumbens (ACC), the principal nucleus of the medial preoptic area or the dorsal hippocampus. Implants were combined with sc P injections. In Experiment 2, P (in crystals or dissolved in oil) was implanted in the same regions as in Experiment 1, combined with sc injections of EB. Implants of EB into the ACC or MPOA-bed nucleus of the stria terminalis (BNST) stimulated significant digging across the period of P injections in 72\% and 67\% of females, respectively. Neither EB implants in the hippocampus nor cholesterol implants in the MPOA-BNST were effective in eliciting digging. P withdrawal provoked a rapid decline of digging in all animals; it also stimulated straw-carrying in 53\% of females implanted with EB in the MPOA-BNST. P implants failed to stimulate digging in most females injected with EB. Removal of P crystals did not promote straw-carrying. Results support an action of estradiol on the ACC and MPOA-BNST to promote digging while only the MPOA-BNST is involved in stimulating straw-carrying. The failure of P implants to stimulate digging or straw-carrying in EB-treated females suggests that the stimulation of other or additional brain areas by P is necessary to fully activate maternal nest-building. (C) 2005 Elsevier Inc. All rights reserved.es_ES
Doihttps://doi.org/10.1016/j.yhbeh.2004.11.004es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/5261
Idiomaenes_ES
EditorialACADEMIC PRESS INC ELSEVIER SCIENCEes_ES
RelaciónHormones and Behaviores_ES
URL relacionadohttps://doi.org/10.1016/j.yhbeh.2004.11.004es_ES
DerechosAcceso restringido / Suscripción (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_16eces_ES
FuenteHormones and Behavior
Palabra clavematernal behaviores_ES
Palabra claverabbites_ES
Palabra clavenest-buildinges_ES
Palabra claveestradioles_ES
Palabra claveprogesteronees_ES
Palabra clavepreoptic areaes_ES
Palabra clavenucleus accumbenses_ES
Palabra clavemedial septumes_ES
Palabra clavediagonal band of Brocaes_ES
Palabra clavebed nucleus of the stria terminalises_ES
TítuloForebrain implants of estradiol stimulate maternal nest-building in ovariectomized rabbitses_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorGonzález-Mariscal, G
AutorChirino, R
AutorRosenblatt, JS
AutorBeyer, C
AutorGonzález-Mariscal, Ges_ES
AutorChirino, Res_ES
AutorRosenblatt, JSes_ES
AutorBeyer, Ces_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
Número3es_ES
Rango de páginas272-279es_ES
URL relacionadahttps://doi.org/10.1016/j.yhbeh.2004.11.004
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen47es_ES

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