Stress-linked cortisol concentrations in hair: What we know and what we need to know

Christopher F. Sharpley, James R. McFarlane, Andrzej Slominski

Research output: Contribution to journalReview articleResearchpeer-review

40 Citations (Scopus)

Abstract

Cortisol has major impacts upon a range of physiological homeostatic mechanisms and plays an important role in stress, anxiety and depression. Although traditionally described as being solely synthesised via the hypothalamic-pituitary-adrenal (HPA) axis, recent animal and human studies indicate that cortisol may also be synthesised via a functionally-equivalent 'peripheral' HPA-like process within the skin, principally within hair follicles, melanocytes, epidermal melanocytes and dermal fibroblasts. Current data indicate that basal levels of cortisol within hair vary across body regions, show diurnal variation effects, respond to the onset and cessation of environmental stressors, and may demonstrate some degree of localisation in those responses. There are conflicting data regarding the presence of variability in cortisol concentrations across the length of the hair shaft, thus challenging the suggestion that hair cortisol may be used as a historical biomarker of stress and questioning the primary origin of cortisol in hair. The need to comprehensively 'map' the hair cortisol response for age, gender, diurnal rhythm and responsivity to stressor type is discussed, plus the major issue of if, and how, the peripheral and central HPA systems communicate.

Original languageEnglish
Pages (from-to)111-121
Number of pages11
JournalReviews in the Neurosciences
Volume23
Issue number1
DOIs
Publication statusPublished - 1 Feb 2012
Externally publishedYes

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Hair
Hydrocortisone
Melanocytes
Pituitary-Adrenal System
Body Regions
Skin
Hair Follicle
Circadian Rhythm
Anxiety
Fibroblasts
Biomarkers
Depression

Cite this

Sharpley, Christopher F. ; McFarlane, James R. ; Slominski, Andrzej. / Stress-linked cortisol concentrations in hair : What we know and what we need to know. In: Reviews in the Neurosciences. 2012 ; Vol. 23, No. 1. pp. 111-121.
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Stress-linked cortisol concentrations in hair : What we know and what we need to know. / Sharpley, Christopher F.; McFarlane, James R.; Slominski, Andrzej.

In: Reviews in the Neurosciences, Vol. 23, No. 1, 01.02.2012, p. 111-121.

Research output: Contribution to journalReview articleResearchpeer-review

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