Sex and stress steroids in adolescence: Gonadal regulation of the hypothalamic–pituitary–adrenal axis in the rat
| Autor: | Cheryl M. McCormick, Matthew R. Green |
|---|---|
| Rok vydání: | 2016 |
| Předmět: |
Adult
Male 0301 basic medicine Hypothalamo-Hypophyseal System endocrine system medicine.medical_specialty Adolescent Hypothalamic–pituitary–gonadal axis Biology 03 medical and health sciences chemistry.chemical_compound 0302 clinical medicine Endocrinology Corticosterone Internal medicine medicine Animals Humans Gonadal Steroid Hormones Gonads Testosterone Sex Characteristics Age differences Rats 030104 developmental biology medicine.anatomical_structure chemistry Female Animal Science and Zoology hormones hormone substitutes and hormone antagonists 030217 neurology & neurosurgery Gonadal hormones Hypothalamic–pituitary–adrenal axis Hormone Sex characteristics |
| Zdroj: | General and Comparative Endocrinology. 234:110-116 |
| ISSN: | 0016-6480 |
| DOI: | 10.1016/j.ygcen.2016.02.004 |
| Popis: | 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. |
| Databáze: | OpenAIRE |
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