c-Fos expression related to sexual satiety in the male rat forebrain.
Physiol Behav
; 91(5): 609-19, 2007 Aug 15.
Article
em En
| MEDLINE
| ID: mdl-17482654
The long term inhibition of masculine sexual behavior after repeated ejaculations is known as sexual satiety. To investigate the brain areas that may regulate sexual satiety, c-Fos expression was studied in different groups of sexually experienced male rats: controls not allowed to copulate, males allowed two or four ejaculations and animals allowed to reach sexual satiety. Interestingly, males that ejaculated two or four times had similar c-Fos densities in all the evaluated brain regions, except for the suprachiasmatic nucleus. Similarly, sexually satiated males had analogous c-Fos densities in all the evaluated brain areas independently of the number of ejaculations required to reach satiety. Sexual activity (evidenced in males that ejaculated two or four times) increased c-Fos levels in the anteromedial bed nucleus of the stria terminalis, claustrum, entorhinal cortex, medial preoptic area, nucleus accumbens core, suprachiasmatic nucleus and supraoptic nucleus; however, sexual satiety did not modify c-Fos expression in these regions. Sexually satiated males had increased c-Fos densities in the ventrolateral septum and the anterodorsal and posteroventral medial amygdala, compared with animals allowed to copulate but that did not reach sexual satiety, and decreased c-Fos density in the piriform cortex. These results suggest that the network that underlies sexual satiety is different from that which regulates copulation.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Saciação
/
Comportamento Sexual Animal
/
Mapeamento Encefálico
/
Proteínas Proto-Oncogênicas c-fos
/
Sistema Límbico
Limite:
Animals
Idioma:
En
Revista:
Physiol Behav
Ano de publicação:
2007
Tipo de documento:
Article
País de afiliação:
México
País de publicação:
Estados Unidos