Testosterone and dihydrotestosterone can slow down the growth of certain hair follicle cells.
April 2023 in “Journal of Investigative Dermatology” Proper cell death regulation is crucial for normal hair follicle regeneration and skin remodeling.
September 2022 in “Journal of Theoretical Biology” Hair follicles can regenerate after radiation damage but not during a specific growth phase.
August 2022 in “International Journal of Molecular Sciences” DNA methylation controls lncRNA2919, which negatively affects hair growth.
January 2022 in “Stem cell biology and regenerative medicine” Improving dermal papilla cells can help regenerate hair follicles.
September 2016 in “Journal of Dermatological Science” The protein aPKCλ is crucial for keeping hair follicle stem cells inactive and for hair growth and regeneration.
15 citations
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September 2012 in “PTR. Phytotherapy research/Phytotherapy research” Ginsenosides Rb₁ and Rd may help prevent hair loss by promoting hair cell growth.
8 citations
,
December 2003 in “Experimental Dermatology” Altering the keratin 17 gene in mice hair follicles caused temporary hair issues, but changes were minimal and short-lived.
6 citations
,
January 2006 in “Journal of dermatological science” Runx1 helps control the KAP5 gene in human hair follicles.
January 2004 in “Chinese Journal of Dermatology” Injecting specific oligonucleotides can change hair growth and structure by altering a gene.
40 citations
,
July 1989 in “Journal of Cell Science” Rat hair follicles can be kept alive in a lab for 7 days but then stop growing.
Higher PD-1 levels mean fewer CD8+ T cells in alopecia areata hair follicles.
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.
April 2023 in “Journal of Investigative Dermatology” Higher PD-1 levels are linked to fewer immune cells in hair follicles in alopecia areata.
January 2023 in “Figshare” Mouse skin and hair aging starts at 200 days, with changes in hair follicles and more white hairs as signs of aging.
November 2022 in “Journal of Investigative Dermatology” Growth hormone-releasing hormone (GHRH) boosts hair growth and human scalp hair follicles have their own growth hormone system.
December 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” New cells join the hair's dermal papilla during the growth phase, possibly affecting hair thickness.
105 citations
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December 1998 in “Archives of Dermatological Research” Dermal papilla cells mainly drive blood vessel growth in hair follicles.
46 citations
,
January 1991 in “Journal of Investigative Dermatology” Minoxidil works in liver and outer hair root sheath for hair growth.
7 citations
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June 2022 in “Czech Journal of Animal Science” Certain circular RNAs help cashmere goats grow more hair.
August 2023 in “International Journal of Molecular Sciences” The human scalp hair bulb contains different types of melanocytes with varying abilities to produce melanin.
The human scalp has different types of pigment cells in hair follicles with varying abilities to produce pigment.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” A PTH-based treatment improved hair regrowth better than ruxolitinib in a mouse model of hair loss.
148 citations
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September 2003 in “Journal of Investigative Dermatology Symposium Proceedings” Alopecia areata is an autoimmune disorder causing hair loss, linked to specific hair follicle antigens and genetic factors.
62 citations
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January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
16 citations
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May 2013 in “Australasian Journal of Dermatology” Hair loss in Cronkhite-Canada syndrome is reversible by treating the gut issues and doesn't need steroid treatment for the hair itself.
8 citations
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January 2016 in “Journal of Investigative Dermatology” The research created a model to understand human hair growth cycle, which can help diagnose and treat hair growth disorders and test potential hair growth drugs.
7 citations
,
March 2023 in “Journal of Investigative Dermatology” Low-intensity ultrasound may help protect hair follicles from chemotherapy-induced hair loss.
5 citations
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May 2021 in “Small ruminant research” The study found specific proteins that could mark different growth stages of cashmere goat hair and may help improve cashmere production.
1 citations
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January 2004 in “Linchuang pifuke zazhi” Substance P helps hair growth by extending the growth phase and affecting certain growth factors.