Segmental Hair Analysis as a Retrospective Testosterone Diary: Possibilities and Pitfalls

    September 2023 in “ Scientific reports ”
    Julia K. Preinbergs, Jakob O. Ström, Elvar Theodorsson, Edvin Ingberg
    Studysummary This study observed that testosterone concentrations in hair segments show some stability over time, but are influenced by factors like sebum integration, hair washing frequency, and individual hair growth rates.
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    Research cited in this study 9

    1. Endogenous Steroid Hormones in Hair: Investigations on Different Hair Types, Pigmentation Effects, and Correlation to Nails Steroids · 2019
    2. Radiolabel Validation of Cortisol in the Hair of Rhesus Monkeys Psychoneuroendocrinology · 2018
    3. Testosterone-Like Immunoreactivity in Hair Measured in Minute Sample Amounts: A Competitive Radioimmunoassay with an Adequate Limit of Detection Scientific reports · 2017
    4. Determinants of Hair Cortisol and Hair Cortisone Concentrations in Adults Psychoneuroendocrinology · 2015
    5. Hair as a Retrospective Calendar of Cortisol Production—Increased Cortisol Incorporation into Hair in the Third Trimester of Pregnancy Psychoneuroendocrinology · 2008
    6. Sexual Hormones in Human Skin Hormone and metabolic research · 2007
    7. Characteristic Features of Japanese Women's Hair With Aging and Hair Loss Journal of Dermatological Science · 2006
    8. Diversity of Hair Growth Profiles International Journal of Dermatology · 2005
    9. A Discourse on Human Hair Fibers and Reflections on the Conservation of Drug Molecules International Journal of Legal Medicine · 1996

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