47 citations
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January 2016 in “MethodsX” This study found that while the reproducibility of hair cortisol measurements in captive chimpanzees was high, the fineness of homogenized hair, sample weight, and extraction time influenced absolute cortisol concentrations.
18 citations
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October 1978 in “The journal of investigative dermatology/Journal of investigative dermatology” This study found that excess vitamin A induced stable glandular morphogenesis and mucous metaplasia in embryonic mouse vibrissa follicles, even after switching to standard medium.
This study found that hair cortisol concentrations in mother-daughter pairs are a potential biomarker for cortisol responses to chronic stress, with daughter-mother similarities affected by parenting styles and children's symptoms.
7 citations
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May 2021 in “General and comparative endocrinology” This study concluded that qiviut cortisol can be used as a measure of HPA axis activity in muskoxen, with hair growth phase and body region affecting cortisol levels.
November 2025 in “Journal of Laboratory Medicine” This study found that cortisol levels, a biomarker of chronic stress, significantly increased in the post-COVID-19 lockdown period compared to pre-lockdown and during-lockdown periods, especially among females and young adults, reflecting sustained psychological stress from the pandemic.