58 citations
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April 2009 in “Dermatologic Surgery” Most women have a widow's peak and specific hairline features useful for designing hair restoration surgery.
115 citations
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August 2008 in “The Journal of Clinical Endocrinology & Metabolism” Thyroid hormones help hair grow, reduce hair loss, and increase hair pigment.
August 2021 in “Journal of Investigative Dermatology” Stress causes hair loss by making the body produce cortisol, which stops hair cells from growing.
5 citations
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October 2020 in “Experimental dermatology” A specific type of skin cell creates an opening for hair to grow out, and problems with this process can lead to skin conditions.
April 2017 in “Journal of Investigative Dermatology” A virus protein can activate a pathway that may lead to abnormal hair follicle development.
1 citations
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April 1998 in “PubMed” 8 citations
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April 1997 in “Experimental Dermatology” hHbl gene is active in hair shaft cells and some pilomatricomas.
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.
March 2026 in “Oxford Journal of Student Scholarship” Hair follicle stem cells can help treat hair loss and chronic ulcers, but more research is needed for other uses.
4 citations
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November 2020 in “BMC Dermatology” Researchers identified genes in scalp hair follicles that may affect hair traits and hair loss.
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.
335 citations
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March 2004 in “Development” Temporary activation of β-catenin can create new hair follicles, but ongoing activation is needed to keep hair follicle tumors.
72 citations
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October 2009 in “The FASEB journal” TRH stimulates human hair growth and extends the hair growth phase.
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists created a detailed map of gene activity in different parts of human hair follicles.
2 citations
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January 2014 in “Hair therapy & transplantation” New treatments for hair growth disorders are needed due to limited current options and complex hair follicle biology.
6 citations
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February 2016 in “American Journal of Dermatopathology” The boy with woolly hair nevus had thinner hair and abnormal hair follicles, which improved with treatment but worsened when treatment stopped.
89 citations
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September 2010 in “Annual Review of Genomics and Human Genetics” The document concludes that understanding the genes and pathways involved in hair growth is crucial for developing treatments for hair diseases.
33 citations
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December 1999 in “Journal of Investigative Dermatology Symposium Proceedings”
April 2018 in “Journal of Investigative Dermatology” The research found that a specific skin cell type not only triggers hair growth but also controls hair color, and that aging can lead to hair loss and color changes.
April 2018 in “Journal of Investigative Dermatology” Key signals for hair follicle formation were identified.
January 2002 in “Europe PMC (PubMed Central)” The model successfully simulates human hair growth and patterns, including hair loss types.
2 citations
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July 1994 in “Journal of Dermatological Science” Grafted human scalp samples on mice can produce human hair, useful for studying hair genetics.
6 citations
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March 2011 in “European Journal of Dermatology” Nestin-positive cells are important for hair follicle regeneration in alopecia areata.
4 citations
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January 2011 in “Cell stem cell” Hair follicle stem cells can return to their original niche and help regenerate hair.
28 citations
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September 2013 in “Journal of Investigative Dermatology” The document concludes that dermal papilla cells are key for hair growth and could be used in new hair loss treatments.
184 citations
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December 2018 in “Nature Communications” Researchers created human hair follicles using a new method that could help treat hair loss.
January 2014 in “Hair transplant forum international” Hair follicle cloning is possible but faces many challenges before it can replace traditional hair transplants.
5 citations
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April 2024 in “Biology” Improving human hair follicle models is crucial for better hair loss treatments.
106 citations
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March 2014 in “BioEssays” We need more research to better understand human hair follicle stem cells for improved treatments for hair loss and skin cancer.
July 2024 in “Journal of Investigative Dermatology” Topical thyroid hormones may boost hair growth.