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July 1994 in “Journal of dermatological science” Testosterone affects hair follicles differently across body sites, with beard hair follicles showing more activity of a specific enzyme and presence of androgen receptors compared to scalp hair.
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September 2013 in “Stem Cells” Smad1 and Smad5 are essential for hair follicle development and stem cell sleepiness.
November 2013 in “Elsevier eBooks” Skin and hair renewal is maintained by both fast and slow cycling stem cells, with hair regrowth primarily driven by specific stem cells in the hair follicle bulge. These cells can also help heal wounds and potentially treat hair loss.
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May 2022 in “Stem cell research & therapy” Disrupted stem cell signals in hairpoor mice cause hair loss.
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April 1982 in “Genetics Research” Mice with the naked gene have missing or abnormal hair cells.
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August 2015 in “Journal of biophotonics” Hair follicles help substances penetrate the skin faster and more effectively.
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January 2020 in “한국공업화학회 연구논문 초록집” Encapsulated hair cells in a special gel can help regenerate hair follicles, potentially treating hair loss.