January 2011 in “Bradford Scholars (University of Bradford)” Testosterone stimulates growth in intermediate hair follicles, but this can be blocked by cyproterone acetate.
2 citations
,
December 2022 in “Scientific Data” The study maps how genes are regulated during mouse hair growth.
4 citations
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December 1995 in “Archives of Dermatological Research”
6 citations
,
November 2013 in “International Journal of Radiation Biology” Gamma-rays exposure during the resting phase of hair growth can damage hair regeneration and color in mice.
3 citations
,
February 2021 in “Experimental dermatology” Dermal papilla microtissues could be useful for initial hair growth drug testing.
164 citations
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February 2010 in “Journal of Cell Science” Human dermal stem cells can become functional skin pigment cells.
50 citations
,
September 1997 in “Developmental Biology” 11 citations
,
March 2016 in “Cell cycle/Cell cycle (Georgetown, Tex. Online)” Old hair follicles grew better when moved to a young environment.
140 citations
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December 1998 in “Journal of Investigative Dermatology” Apoptosis in hair follicles varies by growth phase, with TGF-β possibly starting the catagen phase.
June 2023 in “British Journal of Dermatology” The protein called small nuclear ribonucleoprotein polypeptide E is identified as a cause of a type of hair loss without other symptoms.
3 citations
,
July 2015 in “Biotechnic & histochemistry” Bim and Puma proteins are found in developing mouse hair follicles and are involved in more than just cell death.
February 2026 in “HCA Healthcare Journal of Medicine” Recognizing keratosis pilaris in all skin tones helps diagnose related skin issues and reduce distress.
11 citations
,
February 2002 in “International Journal of Cosmetic Science” Recent findings show that hair growth and color are controlled by a complex network of signals in the hair follicle.
3 citations
,
April 2011 in “Expert Review of Dermatology” Male hair loss is caused by inactive hair follicle stem cells.
16 citations
,
January 2018 in “Biochemical and Biophysical Research Communications” Researchers created five new human scalp cell lines that could be useful for hair growth and loss research.
6 citations
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January 2007 in “Actas dermo-sifiliográficas/Actas dermo-sifiliográficas” Gray hair regained color after thyroid hormone treatment.
19 citations
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August 1993 in “Journal of Cutaneous Pathology” Alopecia causes smaller hair follicles and affects growth-related structures.
April 2021 in “Journal of Investigative Dermatology” The research found genes that may protect certain scalp cells from hair loss.
9 citations
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July 2008 in “Oncology Reports” HPV16-transformed cells can change human skin cell properties, aiding tumor growth.
December 2025 in “JEADV Clinical Practice” A woman with hair loss condition experienced rare hair color return, suggesting it might help diagnose the condition.
190 citations
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October 2002 in “The FASEB journal” Androgens may cause hair loss by increasing TGF-beta1 from scalp cells, which inhibits hair cell growth.
January 2006 in “Chinese Journal of Dermatology” Mesenchymal cells are essential for hair follicle stem cell growth.
53 citations
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May 1986 in “Clinics in endocrinology and metabolism” Androgens like testosterone affect hair growth and oil production differently across body parts and individuals.
January 2022 in “Clinical Cases in Dermatology” A woman's scalp nodule was a common, harmless pilar cyst, treated by surgical removal.
6 citations
,
July 2011 in “Journal of Plastic Reconstructive and Aesthetic Surgery” Eyebrow reconstruction using hair follicle grafts was successful in a man with a benign hereditary disorder affecting his eyebrows.
May 2006 in “The American journal of medicine” The man had persistent itchy bumps on his cheeks and neck despite trying different shaving products.
September 2025 in “Journal of Drug Delivery and Therapeutics” Targeting hair follicles can effectively promote hair growth and treat hair disorders.
41 citations
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March 1998 in “Archives of Dermatological Research” The enzyme that changes testosterone to a stronger form is mostly found in the part of the hair follicle called the dermal papilla.
7 citations
,
March 2012 in “Journal of Investigative Dermatology” Some thymic peptides can increase human hair growth, while others may inhibit it.
2 citations
,
January 2002 Melanin and melanocytes contribute to the brown pigmentation in stasis dermatitis.