50 citations
,
July 2018 in “Psychoneuroendocrinology” In this study, researchers found that tritiated cortisol was incorporated into the hair of rhesus monkeys primarily as cortisol and cortisone, as well as other metabolites, after systemic administration.
44 citations
,
June 2018 in “Journal of Visualized Experiments” This paper presents a culturally informed protocol designed to improve the collection of hair samples from African Americans for cortisol measurement, illustrating its application with community-based study data.
32 citations
,
January 2017 in “Physiology & Behavior” This study found that in rodent diabetes models, measuring corticosterone levels in new growth hair was more sensitive to hyperglycemia-induced changes than using old hair or serum samples.
33 citations
,
January 2017 in “Psychoneuroendocrinology” This study of Danish women found no evidence linking hair cortisol concentration to hair dyeing status or the frequency of hair washing.
217 citations
,
July 2009 in “Experimental and Clinical Endocrinology & Diabetes” This study found that hair cortisol levels were significantly higher in patients with Cushing's Syndrome compared to healthy controls, suggesting hair analysis can provide historical information on cortisol exposure.
567 citations
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October 2007 in “Clinical and investigative medicine” This study described a new assay for measuring cortisol in hair and found it may serve as a useful biomarker for long-term cortisol exposure, correlating with 24-hour urine cortisol levels in non-obese subjects.
199 citations
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July 2007 in “General and Comparative Endocrinology” In this study, researchers found a significant positive association between cortisol levels in hair and feces of domestic cats and dogs, suggesting hair cortisol assays could be a viable option for monitoring chronic stress.
489 citations
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June 2005 in “The FASEB Journal” This study found that human scalp hair follicles can respond to corticotropin releasing hormone stimulation similarly to the classical HPA axis, including up-regulating cortisol production and activating neuroendocrine feedback loops.