Social setting, social rank and HPA axis response in cynomolgus monkeys
| Autor: | Kathleen A. Grant, Vanessa A. Jimenez, Daicia C. Allen, Megan N. McClintick |
|---|---|
| Rok vydání: | 2017 |
| Předmět: |
Male
0301 basic medicine Pharmacology Hypothalamo-Hypophyseal System endocrine system Hydrocortisone Naloxone Pharmacology toxicology Rank (computer programming) Pituitary-Adrenal System Article Dexamethasone Developmental psychology Macaca fascicularis 03 medical and health sciences 030104 developmental biology 0302 clinical medicine Adrenocorticotropic Hormone Social Dominance Pituitary Gland Animals Humans Interpersonal Relations Psychology 030217 neurology & neurosurgery |
| Zdroj: | Psychopharmacology. 234:1881-1889 |
| ISSN: | 1432-2072 0033-3158 |
| DOI: | 10.1007/s00213-017-4596-7 |
| Popis: | Hypothalamic-pituitary-adrenal (HPA) axis activity under different social settings in non-human primates is understudied.The aim of this study is to evaluate the response of pituitary-adrenal hormones (adrenocorticotropic hormone (ACTH) and cortisol) to pharmacological challenges of the HPA axis in male cynomolgus macaques under different social settings.Male cynomolgus macaques (Macaca fascicularis, n = 11) were individually (A) and socially housed (B) in alternation, over consecutive months, in an ABA design. During each experimental phase, plasma ACTH and cortisol were measured in response to low- and mild-intensity psychological stressors and following administration of saline, naloxone, ovine-corticotropin-releasing factor (oCRF), and dexamethasone.These data demonstrate that cortisol measured under low stress conditions is sensitive to social rank (dominance hierarchy) and distinguishes dominant from non-dominant animals during both individual and social settings. Administration of naloxone resulted in elevated circulating ACTH and cortisol, while oCRF only increased circulating cortisol. During social housing, the cortisol response to naloxone and oCRF was increased, whereas dexamethasone suppression of ACTH and cortisol remained consistent across all social settings.Circulating ACTH and cortisol are differentially sensitive to changes in social settings in non-human primates. Cortisol response increased during social housing and could be stimulated by both naloxone and oCRF, whereas ACTH response was generally not influenced by social setting or oCRF but was increased by naloxone. These data show differential adrenal and pituitary response to changes in social settings and a small, but consistent, effect of social dominance. |
| Databáze: | OpenAIRE |
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