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dc.contributor.authorZimmer, Cédric
dc.contributor.authorSpencer, Karen A
dc.identifier.citationZimmer , C & Spencer , K A 2014 , ' Modifications of glucocorticoid receptors mRNA expression in the hypothalamic‐pituitary‐adrenal axis in response to early-life stress in female Japanese quail ' , Journal of Neuroendocrinology , vol. 26 , no. 12 , pp. 853-860 .
dc.identifier.otherPURE: 156419147
dc.identifier.otherPURE UUID: 72e5afa9-16e2-4a10-bdde-6d7e07f1e41e
dc.identifier.otherPubMed: 25303060
dc.identifier.otherScopus: 84910683960
dc.identifier.otherWOS: 000345337700003
dc.identifier.otherORCID: /0000-0002-2851-9379/work/78204993
dc.descriptionThe present study was funded by a BBSRC David Phillips Research Fellowship to KAS.en
dc.description.abstractStress exposure during early‐life development can programme individual brain and physiology. The hypothalamic‐pituitary‐adrenal (HPA) axis is one of the primary targets of this programming, which is generally associated with a hyperactive HPA axis, indicative of a reduced negative‐feedback. This reduced feedback efficiency usually results from a reduced level of the glucocorticoid receptor (GR) and/or the mineralocorticoid receptor (MR) within the HPA axis. However, a few studies have shown that early‐life stress exposure results in an attenuated physiological stress response, suggesting an enhance feedback efficiency. In the present study, we aimed to determine whether early‐life stress had long‐term consequences on GR and MR levels in quail and whether the effects on the physiological response to acute stress observed in prenatally stressed individuals were underpinned by changes in GR and/or MR levels in one or more HPA axis components. We determined GR and MR mRNA expression in the hippocampus, hypothalamus and pituitary gland in quail exposed to elevated corticosterone during prenatal development, postnatal development, or both, and in control individuals exposed to none of the stressors. We showed that prenatal stress increased the GR:MR ratio in the hippocampus, GR and MR expression in the hypothalamus and GR expression in the pituitary gland. Postnatal stress resulted in a reduced MR expression in the hippocampus. Both early‐life treatments permanently affected the expression of both receptor types in HPA axis regions. The effects of prenatal stress are in accordance with a more efficient negative‐feedback within the HPA axis and thus can explain the attenuated stress response observed in these birds. Therefore, these changes in receptor density or number as a consequence of early‐life stress exposure might be the mechanism that allows an adaptive response to later‐life stressful conditions.
dc.relation.ispartofJournal of Neuroendocrinologyen
dc.rightsCopyright © 2014 The Authors. Journal of Neuroendocrinology published by John Wiley & Sons Ltd on behalf of British Society for Neuroendocrinology. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.
dc.subjectPrenatal stressen
dc.subjectPostnatal stressen
dc.subjectMineralocorticoid receptoren
dc.subjectGlucocorticoid recpetoren
dc.subjectHypothalamic-pituitary-adrenal axis programmingen
dc.subjectBF Psychologyen
dc.subjectRC0321 Neuroscience. Biological psychiatry. Neuropsychiatryen
dc.titleModifications of glucocorticoid receptors mRNA expression in the hypothalamic‐pituitary‐adrenal axis in response to early-life stress in female Japanese quailen
dc.typeJournal articleen
dc.description.versionPublisher PDFen
dc.contributor.institutionUniversity of St Andrews. School of Psychology and Neuroscienceen
dc.description.statusPeer revieweden

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