May 1995 in “Journal of Investigative Dermatology” Researchers developed a new way to measure gene activity in single hair follicles and found that a specific gene's activity changes with different amounts and times of treatment.
February 2026 in “Chemical Engineering Journal” PCA hydrogel promotes hair growth by enhancing blood vessel formation and hair follicle stem cell activity.
77 citations
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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.
34 citations
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December 1991 in “Annals of the New York Academy of Sciences” Differences in enzyme activity and androgen receptors in hair follicles may explain why hair loss appears differently in men and women.
21 citations
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October 2013 in “Molecular Biology of the Cell” The protein CCN2 controls hair growth by affecting hair follicle formation and stem cell activity in mice.
July 2025 in “Journal of Investigative Dermatology” Miniaturized hair follicles in androgenetic alopecia show abnormal mitochondrial activity and damage.
January 2025 in “Clinical and Translational Medicine” A specific RNA can help hair growth in baldness by boosting stem cell activity.
Encapsulating hair follicle cells in a special gel boosts their activity.
July 2022 in “Journal of Investigative Dermatology” Substance P may contribute to hair loss by increasing oxidative stress and mitochondrial activity in hair follicles.
June 2023 in “Journal of cosmetic medicine” Hair follicle stem cells and mitochondria are key for hair growth, and targeting their activity could lead to new hair loss treatments.
4 citations
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May 2019 in “PubMed” Topical minoxidil does not change the activity of hair follicle enzymes that metabolize it.
45 citations
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August 1992 in “PubMed” The rat vibrissa follicle can quickly remodel its basement membrane during hair growth, affecting cell signaling and activity.
25 citations
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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.
7 citations
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December 2010 in “대한의생명과학회지” Hair growth after depilation increases skin thickness, mast cell counts, and cell activity.
19 citations
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March 2003 in “Journal of Investigative Dermatology” Mechlorethamine treatment regrew hair in mice by killing immune cells causing hair loss without harming hair follicles.
4 citations
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January 2019 in “Journal of cutaneous pathology” The mTOR pathway may be involved in the development of hair follicle tumors, with higher activity in malignant tumors.
July 2025 in “Journal of Investigative Dermatology” Ritlecitinib reduces alopecia areata symptoms by blocking JAK3/TEC signaling and T-cell activity.
131 citations
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March 2004 in “The American journal of pathology” Modulating BMP activity changes the number, size, shape, and type of ectodermal organs.
118 citations
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January 2004 in “European Journal of Cell Biology” Balanced protease activity is crucial for healthy skin and hair development.
46 citations
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June 2015 in “Journal of Investigative Dermatology” Androgen receptor activity blocks Wnt/β-catenin signaling, affecting hair growth and skin cell balance.
Suppressing ODC activity reduces tumor growth in hair follicles.
415 citations
,
January 2008 in “Cell” NFATc1 controls hair stem cell activity, affecting hair growth and could be a target for hair loss treatments.
119 citations
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August 2010 in “Journal of Investigative Dermatology” Increased 11β-HSD1 activity in skin may contribute to aging and could be targeted to reduce aging effects.
23 citations
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May 2013 in “Virology” HPV16 oncogenes disrupt the normal activity of hair follicle stem cells.
19 citations
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September 2011 in “Journal of Dermatological Science” TGF-β1 increases androgen receptor activity in hair loss, but Hic-5/ARA55 can counter this effect.
12 citations
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December 2022 in “Current Protein and Peptide Science” Thymosin β4 helps in cell activities, healing, and organ preservation, and treats hair loss and skin injuries.
2 citations
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May 2022 in “International journal of molecular sciences” Changes in KRT17 gene activity linked to wool production in Angora rabbits.
1 citations
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July 2024 in “Journal of Investigative Dermatology” Immune cells boost stem cell activity in hairy moles, causing more hair growth.
1 citations
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April 2023 in “Science Advances” High levels of ERK activity are key for tissue regeneration in spiny mice, and activating ERK can potentially redirect scar-forming healing towards regenerative healing in mammals.
September 2018 in “Cosmetics” Inositol and arginine solutions improve hair follicle health and turnover.