Sex and stress steroids in adolescence: Gonadal regulation of the hypothalamic-pituitary-adrenal axis in the rat.
Gen Comp Endocrinol
; 234: 110-6, 2016 08 01.
Article
em En
| MEDLINE
| ID: mdl-26851306
ABSTRACT
This review provides an overview of the current understanding of the role of the hypothalamic-pituitary-gonadal (HPG) axis in regulating the hypothalamic-pituitary-adrenal (HPA) axis response to stressors. HPA function is influenced by both organizational (programming) and activational effects of gonadal hormones. Typically, in adult rats, estradiol increases and androgens decrease the HPA response to stressors, thereby contributing to sex differences in HPA function, and sensitivity of the HPA axis to gonadal steroids is in part determined by exposure to these hormones in early development. Although developmental differences in HPA function are well characterized, the extent to which gonadal steroids contribute to age differences in HPA function is not well understood. Deficits in the understanding of the relationships between the HPA and HPG axes are greatest for the adolescent period of development. The critical outstanding questions are, when do gonadal hormones begin to regulate HPA function in adolescence, and what mechanisms precipitate change in sensitivity of the HPA axis to the HPG axis at this stage of life.
Palavras-chave
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Hormônios Esteroides Gonadais
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Gônadas
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Sistema Hipotálamo-Hipofisário
Limite:
Adolescent
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Adult
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Animals
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Female
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Humans
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Male
Idioma:
En
Revista:
Gen Comp Endocrinol
Ano de publicação:
2016
Tipo de documento:
Article
País de afiliação:
Canadá