title: Effects of photoperiod on brain corticosteroid receptors and the stress response in the golden hamster (Mesocricetus auratus).
abstract: Following exposure to short daylengths, in golden hamsters, changes in basal adrenal glucocorticoid secretion are associated with a significant increase in Type I receptor binding, and are preceded by alterations in the stress-induced release of glucocorticoids, which is one of the major modes of operation of the hypothalamo-pituitary-adrenocortical axis (HPA). These results lend support to the hypothesis that corticosteroid receptors, and in particular the Type I receptor subtype, play a central role in the regulation of circadian and circannual rhythms of the HPA.
authors.affiliation: Laboratory of Neuroendocrinology, Rockefeller University, New York, NY 10021, USA.
authors.forename: E
authors.initials: E
authors.lastname: Ronchi
authors.forename: R L
authors.initials: RL
authors.lastname: Spencer
authors.forename: L C
authors.initials: LC
authors.lastname: Krey
authors.forename: B S
authors.initials: BS
authors.lastname: McEwen
mesh_terms: D000315:Adrenalectomy; D000818:Animals; D001923:Brain Chemistry / Q000502:physiology*; D002540:Cerebral Cortex / Q000737:chemistry / Q000502:physiology; D003345:Corticosterone / Q000097:blood; D006224:Cricetinae; D006624:Hippocampus / Q000737:chemistry / Q000502:physiology; D006854:Hydrocortisone / Q000378:metabolism / Q000494:pharmacology; D007031:Hypothalamus / Q000737:chemistry / Q000502:physiology; D008297:Male; D008647:Mesocricetus; D017440:Photoperiod; D010913:Pituitary-Adrenal System / Q000502:physiology; D011987:Receptors, Steroid / Q000819:agonists / Q000032:analysis*; D013312:Stress, Physiological / Q000378:metabolism*; D014316:Tritium
chemical_list: D011987:Receptors, Steroid; D014316:Tritium; D003345:Corticosterone; D006854:Hydrocortisone