期刊
PLOS ONE
卷 14, 期 5, 页码 -出版社
PUBLIC LIBRARY SCIENCE
DOI: 10.1371/journal.pone.0216000
关键词
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资金
- 2018 Animal Welfare Student Scholarship, Universities Federation for Animal Welfare (UFAW)
- BBSRC [BB/P010881/1]
- BBSRC [BB/P010881/1, BB/P001874/1] Funding Source: UKRI
Hair is an emerging biological matrix in which to measure chronic HPA axis activity, offering a longer term view into an animal's life. We explored effects of exogenous (e.g. lifestyle, medications, social environment) and endogenous (e.g. disease, behaviour) stressors on hair cortisol concentration (HCC) in a population of Border Collies (BCs). Owners of BCs were recruited and reported their dog's lifestyle, clinical history, anxiety-related behaviour, and collected a white hair sample from their dog's dorsal neck region. HCC was determined using established methods with a commercial cortisol assay kit. Samples from 135 BCs were analysed, with 91 healthy controls and 44 diagnosed with epilepsy as a model disease. Factors associated with higher HCC included psychosocial stressors (living with three or more other dogs) and lifestyle (engaging in competitive flyball); while factors associated with lower HCC included anxiety (stranger-directed and non-social), health (epilepsy diagnosis, with number of seizures to date negatively correlated with HCC) and medication (certain anti-epileptic drugs were associated with elevated or reduced HCC). These novel results highlight the potential of chronic stress with frequent or persisting HPA-axis hyperactivity leading to a state of hypocortisolism, and the need to consider stressor recency and recurrence when interpreting HCC data.
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