53 citations
,
January 2009 in “Journal of Investigative Dermatology” UVB radiation harms hair growth and health, causing cell death and other changes in human hair follicles.
November 2025 in “Scientific Reports” COVID-19 may cause hair loss by affecting hair follicles.
7 citations
,
September 2003 in “Journal of Investigative Dermatology” PAR-1 may play a role in hair growth regulation in human hair follicles.
April 2019 in “Journal of Investigative Dermatology” Stabilizing HIF1A in hair follicles may boost hair growth by enhancing energy production and blood vessel formation.
37 citations
,
February 2007 in “Experimental Dermatology” Increasing PDCD4 protein may help prevent or treat some skin cancers.
96 citations
,
September 1996 in “PubMed” Desmocollin 1 and 3 have distinct patterns in human tissues, with Dsc1 in specific skin and hair layers and Dsc3 in various epithelial layers.
97 citations
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March 2010 in “The American Journal of Human Genetics” A mutation in the KRT74 gene causes tightly curled hair.
25 citations
,
September 1995 in “Biochemistry and Cell Biology” High levels of human keratin 16 in mice cause skin lesions and abnormal skin development.
25 citations
,
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.
A skin model using hair and skin cells can mimic human skin for research.
198 citations
,
November 1989 in “The Journal of Cell Biology” Keratin K14 expression varies between hair follicles and epidermis, affecting cell differentiation.
38 citations
,
September 1997 in “The journal of investigative dermatology/Journal of investigative dermatology” A mutation in mice causes hair loss and skin issues due to a defect in a gene affecting cell adhesion.
1 citations
,
January 2021 in “Processes” Researchers successfully grew horse skin cells that produce pigment from hair follicle samples.
77 citations
,
February 2001 in “Journal of Dermatological Science” HGF activator helps convert HGF to its active form, promoting hair growth.
8 citations
,
March 2019 in “Journal of Biomedical Materials Research Part A” Sulfated hyaluronan in collagen helps hair follicle cells grow and develop better for skin grafts.
August 2013 in “International Wound Journal” Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
12 citations
,
October 2020 in “Scientific Reports” Necrostatin-1s can promote hair growth and may help treat hair loss.
2 citations
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January 2022 in “International Journal of Medical Sciences” Kartogenin may help treat hair loss by promoting hair growth and extending the hair growth phase.
1 citations
,
May 2017 in “InTech eBooks” Hair loss in Androgenetic alopecia (AGA) is due to altered cell sensitivity to hormones, not increased hormone levels. Hair growth periods shorten over time, causing hair to become thinner and shorter. This is linked to miscommunication between cell pathways in hair follicles. There's also a change in gene expression related to blood vessels and cell growth in balding hair follicles. The exact molecular causes of AGA are still unclear.
May 2019 in “Journal of Clinical Dermatology” Metformin helps hair growth by affecting cell signals related to hair follicle development.
40 citations
,
March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
25 citations
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September 2018 in “Scientific Reports” Morroniside may help hair grow and stay in its growth phase by affecting certain cell signals.
29 citations
,
October 2010 in “Journal of Investigative Dermatology” Activating Kras in mouse skin causes excess skin and hair loss.
April 2016 in “The journal of investigative dermatology/Journal of investigative dermatology” Combining UVB irradiation and anti-CD154 antibody improves hair follicle transplant survival.
Stem cell therapy is more effective than minoxidil for hair growth in androgenic alopecia.
15 citations
,
August 2017 in “International Journal of Molecular Medicine” Panax ginseng extract may help prevent hair loss caused by DKK-1.
4 citations
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January 2018 in “Advances in Experimental Medicine and Biology” The document concludes that hair follicles have a complex environment and our understanding of it is growing, but there are limitations when applying animal study findings to humans.
92 citations
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June 2005 in “Journal of Investigative Dermatology” All-trans retinoic acid causes hair loss by increasing TGF-β2 in hair follicle cells.
March 2023 in “Clinical, cosmetic and investigational dermatology” IL-33 is linked to hair follicle damage in psoriasis and could be a treatment target for hair loss in this condition.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Blue light can help hair grow by affecting certain receptors in hair follicles.