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
,
December 1998 in “Archives of Dermatological Research” Dermal papilla cells mainly drive blood vessel growth in hair follicles.
13 citations
,
September 2021 in “Current Issues in Molecular Biology” Dexpanthenol helps human hair follicle cells grow by preventing aging and death, and by supporting growth signals.
7 citations
,
June 2022 in “Czech Journal of Animal Science” Certain circular RNAs help cashmere goats grow more hair.
February 2025 in “BMC Veterinary Research” Keratin proteins are crucial for hair growth in cashmere goats.
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.
Older women's scalp cells show changes that could contribute to hair thinning.
148 citations
,
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.
88 citations
,
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.
62 citations
,
January 2000 in “Developmental dynamics” Notch-related genes play a key role in the development and cycling of hair follicles.
48 citations
,
July 1993 in “Archives of Dermatological Research” Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.
30 citations
,
October 2021 in “Scientific Reports” Inhibiting glycogen metabolism can promote hair growth.
22 citations
,
February 2017 in “Clinical and Experimental Dermatology” Icariin helps mouse hair grow by boosting a growth factor in skin cells.
16 citations
,
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.
12 citations
,
February 1998 in “Gene” The B2 genes are crucial for hair growth in rats.
9 citations
,
April 2019 in “International journal of molecular sciences” Human hair grows better in a special gel that mimics skin.
8 citations
,
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.
7 citations
,
March 2021 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Blocking prolactin increases the activity of secondary hair follicles in cashmere goats.
5 citations
,
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.
2 citations
,
September 2020 in “International Journal of Molecular Sciences” Removing certain hair follicle stem cells worsens skin reactions to allergens.
1 citations
,
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” Increased PHGDH expression causes early melanin buildup in hair follicles.
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.
Ganoderma lucidum extract may help treat stress-related hair loss.
Melatonin may protect hair follicle stem cells from damage caused by chemotherapy.