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January 2009 in “Journal of Dermatology and Venereology” Cells from the upper hair follicle grow more actively, suggesting stem cells may be located there.
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December 1991 in “Annals of the New York Academy of Sciences” Dermal papillae are crucial for hair growth and maintenance.
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April 2013 in “Journal of Investigative Dermatology” Hair follicle stem cells rely on nearby blood vessels for their maintenance and function.
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April 2019 in “PubMed” The medulla in Asian scalp hair has a tubular structure that allows ions and large molecules to flow through it.
Daily hair care may cause holes in hair fibers.
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August 2018 in “The FASEB journal” Rabbits lacking the Hoxc13 gene show similar hair and skin issues to humans with ECTD-9, making them good for research on this condition.
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January 1989 Human papilla cells from hair follicles show unique growth behaviors but don't induce hair growth in vitro.
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July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
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December 2011 in “International journal of pharmaceutics” Ultrasound increases skin permeability but blocks hair follicles.
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December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
June 2026 in “Communications Biology” Hoxc13 and hair keratin are needed for forming rough skin on frog mating pads.
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June 2001 in “British Journal of Dermatology” c-Myc, Max, and Bin1 help hair follicle cells mature and die.
Hair follicles influence blood vessels during hair growth, suggesting potential treatments for hair growth issues.
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January 2022 in “Oxidative Medicine and Cellular Longevity” Exosomes from dermal papilla cells help hair follicle stem cells grow and survive.
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February 2025 in “Journal of Investigative Dermatology” Progenitor cells randomly decide their roles to maintain hair follicle growth.