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August 2002 in “Experimental Dermatology” 17α-estradiol boosts aromatase activity in female hair follicles, potentially helping with hair loss.
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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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December 2012 in “Journal of Dermatological Science” FGF18 controls hair growth rest phase.
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January 2005 in “PubMed” Apoptosis is important in the hair cycle of dogs.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Blocking a key energy pathway in human hair follicles can trigger stress responses that stop cell growth.
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September 1997 in “Acta Dermato Venereologica” RXR agonists may promote hair growth in humans.
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August 2019 in “General and Comparative Endocrinology” Male yak hair growth is influenced by DHT synthesis, which is promoted by 5α-red1 and AR during growth phases, while E2 may inhibit growth through ERα.
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October 2016 in “Experimental dermatology” Hair follicles may help teach the immune system to tolerate new self-antigens, but this can sometimes cause hair loss.
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October 1994 in “The Journal of Cell Biology” Too much keratin 16 in mice skin causes abnormal skin thickening and structure.
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January 2002 in “Biochemical and biophysical research communications” Interferon β from hair cells stops the growth of other hair cells.
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July 2012 in “Cold Spring Harbor perspectives in biology” The skin protects the body and is constantly renewed by stem cells; disruptions can lead to cancer.
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December 2014 in “Lasers in surgery and medicine” Red light promotes hair growth by directly stimulating hair cells and improving cell communication.
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June 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” PAI-2 helps in the maturation and protection of hair and nail cells.
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January 2026 MicroRNA-200 prevents sebaceous gland development by inhibiting SOX9 and cell cycle progression.
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December 1991 in “Annals of the New York Academy of Sciences” EGF and FGF help hair growth by affecting cell differentiation and fiber growth.
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October 2007 in “Journal of Investigative Dermatology” Stem cells in mouse nails are found in the nail matrix and may control nail growth.
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April 1993 in “PubMed” Human hair cells can change based on their environment, especially interactions with certain skin cells.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” Removing certain immune cells in mice causes their hair to enter the growth phase earlier than usual.
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February 1996 in “Journal of biological chemistry/The Journal of biological chemistry” The TGM3 gene's promoter region is key for skin and hair cell function and may aid gene therapy.
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June 2005 in “Developmental dynamics” Runx3 helps determine hair shape.
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February 2007 in “Nature” The document concludes that skin stem cells are important for hair growth and wound healing, and could be used in regenerative medicine.
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February 2009 in “The American journal of pathology” Lgr5 is a marker for active, self-renewing stem cells in the intestine and skin, important for tissue maintenance.
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January 2006 in “Molecular Medicine” Matriptase is crucial for skin, hair, and immune cell health, and its imbalance can lead to cancer.
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December 2001 in “American Journal of Dermatopathology” TB and BCC tumors show similar follicular differentiation patterns.
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August 2009 in “Nature Genetics” Removing both Atr and Trp53 genes in adult mice causes severe tissue damage and death due to DNA damage.
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May 2011 in “European Journal of Dermatology” Corneodesmosin is crucial for skin and hair health, and its dysfunction can cause skin and hair disorders.
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February 1946 in “Canadian Journal of Research/Canadian journal of research” Hereditary factors cause hair loss in mice by affecting skin and hair follicle structure.
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October 2004 in “Differentiation” Multiple mouse desmoglein 1 isoforms have distinct roles in skin and hair development.