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Environmental novelty exacerbates stress hormones and Aβ pathology in an Alzheimer’s model
Citation
Stuart, KE and King, AE and Fernandez-Martos, CM and Summers, MJ and Vickers, JC, Environmental novelty exacerbates stress hormones and Aβ pathology in an Alzheimer's model, Scientific Reports, 7, (1) Article 2764. ISSN 2045-2322 (2017) [Refereed Article]
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Copyright Statement
Copyright 2017 The Authors. Licensed under Creative Commons Attribution 4.0 International (CC BY 4.0) https://creativecommons.org/licenses/by/4.0/
DOI: doi:10.1038/s41598-017-03016-0
Abstract
Cognitive stimulation has been proposed as a non-pharmacological intervention to be used in primary, secondary and tertiary prevention approaches for Alzheimer’s disease. A common familial Alzheimer’s disease transgenic model showed heightened levels of the stress hormone, corticosterone. When exposed to periodic enhanced cognitive stimulation, these animals demonstrated further heightened levels of corticosterone as well as increased Aβ pathology. Hence, Alzheimer’s disease may be associated with hypothalamic-pituitary-adrenal (HPA) axis dysfunction, causing stimulatory environments to become stress-inducing, leading to a glucocorticoid-pathology cycle contributing to further Aβ release and plaque formation. This finding suggests that stimulation-based interventions and local environments for people with Alzheimer’s disease need to be designed to minimise a stress response that may exacerbate brain pathology.
Item Details
| Item Type: | Refereed Article |
|---|---|
| Keywords: | Alzheimer's disease, amyloid pathology, stress, environmental enrichment |
| Research Division: | Psychology |
| Research Group: | Biological psychology |
| Research Field: | Behavioural neuroscience |
| Objective Division: | Health |
| Objective Group: | Clinical health |
| Objective Field: | Clinical health not elsewhere classified |
| UTAS Author: | Stuart, KE (Miss Kimberley Stuart) |
| UTAS Author: | King, AE (Professor Anna King) |
| UTAS Author: | Fernandez-Martos, CM (Dr Carmen Fernandez-Martos) |
| UTAS Author: | Summers, MJ (Dr Mathew Summers) |
| UTAS Author: | Vickers, JC (Professor James Vickers) |
| ID Code: | 121357 |
| Year Published: | 2017 |
| Web of Science® Times Cited: | 8 |
| Deposited By: | Wicking Dementia Research and Education Centre |
| Deposited On: | 2017-09-26 |
| Last Modified: | 2018-07-24 |
| Downloads: | 61 View Download Statistics |
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