December 1990 in “PubMed” This study found that topical application of 17 alpha-propylmesterolone significantly increased proliferative activity in hair matrix cells in men with androgenetic alopecia.
In this study, researchers explored the heterogeneity of pigment cells in the human scalp anagen hair follicle bulb and discovered unexpected subpopulations of melanocytes, including immature SOX10-negative cells, highlighting potential non-melanogenic roles or transitional migratory functions that require further investigation.
August 2023 in “International Journal of Molecular Sciences” This study observed unexpected heterogeneity among pigment cells in human scalp hair follicles, identifying immature melanocyte populations outside traditional pigment production zones, raising questions about their potential roles beyond melanin synthesis.
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June 2009 in “Journal of Cosmetic Dermatology” This study reports the first cases of loose anagen hair syndrome in dark-skinned children from Upper Egypt, noting it may be under-diagnosed and primarily causes cosmetic concerns without affecting general health.
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July 2019 in “Case reports in dermatology” This case report describes the first known instance of loose anagen hair syndrome in a Southeast Asian child, a 13-year-old Thai boy with hair thinning and excessive shedding on the frontal scalp.