April 2007 in “Linchuang pifuke zazhi” TGF-β1 and 2 may play a role in hair loss in AGA.
September 2004 in “Experimental Dermatology” Stress increases nerve growth factor, causing hair loss in mice.
July 2004 in “Dermatologic Surgery” A woman had temporary hair loss due to a stress-related condition after a facelift.
October 2001 in “Science news” Understanding hair growth and loss is complex, involving genetic and molecular factors.
April 2000 in “Chinese Journal of Dermatology” Epidermal growth factor (EGF) boosts hair follicle growth and speeds up hair cycle transition.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
Pregnancy and hormonal contraceptives can cause temporary hair loss on the scalp and increased hair growth on the face and body.
April 2023 in “Journal of Investigative Dermatology” AL136131.3 slows hair growth by affecting energy processes in hair loss.
August 2021 in “Journal of The American Academy of Dermatology” Newer contraceptives with less androgenic progestins may reduce female hair loss.
December 1990 in “PubMed” Topical 17 alpha-propylmesterolone increases hair cell growth in androgenetic alopecia.
Frontal hair in male pattern baldness shows reduced growth and thickness.
40 citations
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April 2006 in “Journal of the European Academy of Dermatology and Venereology” The Trichoscan system was found to be inaccurate for measuring hair growth, needing better software to be useful.
4 citations
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January 1997 in “EXPERIMENTAL ANIMALS” Histamine and its enzyme may help start hair regrowth.
835 citations
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October 2008 in “Nature Genetics” Lgr5 is a marker for active, long-lasting stem cells in mouse hair follicles.
414 citations
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August 2005 in “Nature” Activating TERT in mice skin boosts hair growth by waking up hair follicle stem cells.
194 citations
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May 2000 in “Journal of Investigative Dermatology” The hedgehog signaling pathway is crucial for hair growth but not for the initial creation of hair follicles.
170 citations
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July 2012 in “Journal of Investigative Dermatology” Wnt ligands are crucial for hair growth and repair.
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June 1994 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair stops producing melanin as it transitions from the growth phase to the resting phase.
115 citations
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August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
109 citations
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October 2007 in “Journal of pineal research” Melatonin helps regulate hair growth and protects the hair follicle from stress.
98 citations
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February 2007 in “Seminars in Cell & Developmental Biology” Androgens can both stimulate and cause hair loss, and understanding their effects is key to treating hair disorders.
91 citations
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April 2011 in “Journal of Ethnopharmacology” Polygonum multiflorum extract helps grow hair by activating certain hair growth signals in mice.
88 citations
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May 2005 in “Journal of Dermatological Science” Versican, a protein, is less present in thinning hair follicles and this decrease might contribute to common hair loss in men.
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March 2021 in “Nature” Stress hormone corticosterone blocks a growth factor to slow down hair stem cell activity and hair growth.
70 citations
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April 2017 in “Lasers in surgery and medicine” Blue light promotes hair growth by interacting with specific receptors in hair follicles.
68 citations
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March 2018 in “Biomaterials” Tiny needles with valproic acid can effectively regrow hair.
64 citations
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January 2015 in “BioMed Research International” Certain growth factors can promote hair growth in mice by activating hair growth-related proteins.
57 citations
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April 2002 in “The journal of investigative dermatology/Journal of investigative dermatology” Vitamin D receptor is crucial for starting hair growth after birth.
54 citations
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January 2013 in “BMC Complementary and Alternative Medicine” Thuja orientalis hot water extract may help hair grow by starting the growth phase and improving hair follicle development.
53 citations
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March 2014 in “Growth Hormone & IGF Research” IGF-1 injections help mice grow more hair by increasing cell growth and blocking a hair growth inhibitor.