Development and validation of hair specimen collection methods among extremely short-length Afro-textured hair

American Journal of Human Biology : the Official Journal of the Human Biology Council
Julius A Doyle, Eleanor Brindle

Abstract

Cortisol, a biomarker of stress, is slowly deposited into the growing hair strands on the head. Meyer, Novak, Hamel, and Rosenberg (2014) established a method for hair cortisol extraction and analysis, and showed that hair cortisol can serve as an integrated measure of psychophysiological stress activity during the period of hormone incorporation into the hair. The hair sample collection methods offered, however, (ie, cutting as close to the scalp as possible with scissors) is inefficient when collecting samples among participants with Afro-textured and extremely short-length hair types. In this article, we propose an alternative method for collecting hair among this group. Our proposed alternative method involves sampling hair from all sections of the scalp, rather than the posterior-vertex position alone. This provides more volume of hair making it feasible to extract and analyze cortisol in extremely short-length Afro-textured hair types. To validate this method, we compared a homogeneous specimen of hair cortisol sampled from all regions to that from the posterior-vertex region of the scalp, a region most commonly sampled. There was no statistical difference between the homogeneous mixture and the posterior-vertex region of...Continue Reading

References

Aug 20, 2010·American Journal of Human Biology : the Official Journal of the Human Biology Council·Benjamin C TrumbleKathleen A O'Connor
Oct 25, 2011·Development and Psychopathology·Martie L SkinnerRichard F Catalano
Dec 12, 2012·Stress and Health : Journal of the International Society for the Investigation of Stress·K M O'BrienC L Moore
Dec 24, 2014·Annals of Epidemiology·Adaeze C WosuMichelle A Williams
Jan 31, 2017·Psychoneuroendocrinology·Tobias StalderRobert Miller

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Citations

Oct 18, 2020·Infant Behavior & Development·Randi A BatesLaura M Justice

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