56 citations
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December 1990 in “Differentiation” Growth factors can either promote or inhibit hair follicle cell growth and collagen breakdown.
34 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Human hair growth is influenced by androgen hormones, and red deer mane follicles have similar hormone receptors.
1 citations
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June 2017 in “Nature Reviews Immunology” Immune cells called Treg cells are essential for hair growth and regeneration.
34 citations
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April 2009 in “Skin Pharmacology and Physiology” Minoxidil affects cell growth in two ways: low doses increase growth, while high doses slow it down and can be toxic.
20 citations
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December 2019 in “International Journal of Molecular Sciences” HB-EGF boosts the hair growth ability of stem cells, making it a potential hair loss treatment.
67 citations
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August 2005 in “Journal of Investigative Dermatology Symposium Proceedings” Androgens promote beard growth but cause hair loss in androgenetic alopecia, with TGF-β1 as a potential treatment target.
September 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Non-invasive methods can effectively monitor hair growth cycles, aiding hair loss treatment development.
4 citations
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July 2014 in “Journal of Investigative Dermatology” Old people have less hair because their hair follicles don't regenerate as well, not because of fewer stem cells, and a protein called follistatin might help reactivate hair growth.
4 citations
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January 2019 in “Micron” Fetal hair follicles have melanocytes with melanosomes at different stages, which are broken down into pigment particles in keratinocytes.
1 citations
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December 2012 in “Journal of Dermatological Science” FGF18 controls hair growth rest phase.