November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Apoptotic cells may trigger cell death in hair follicles during their regression cycle.
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.
5 citations
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August 2021 in “Experimental dermatology” Overexpressing Merkel cell virus proteins in human hair follicles can create clusters of cells that resemble Merkel cell cancer.
2 citations
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April 2008 in “Advances in therapy” Proper diagnosis and treatment of childhood hair loss require distinguishing between alopecia and trichotillomania.
November 2023 in “International Journal of Dermatology” Trichoscopy helps tell apart other hair loss conditions from common hair loss.
219 citations
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July 1995 in “PubMed” Keratinocyte growth factor promotes hair growth and reduces hair loss from chemotherapy.
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July 1984 in “Journal of Investigative Dermatology”
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July 2014 in “Anais Brasileiros de Dermatologia” A man's scalp condition was misidentified as hair loss dots but was actually a common follicular disorder.
April 2023 in “The journal of investigative dermatology/Journal of investigative dermatology” HPV8 causes hair follicle stem cells to grow, leading to skin lesions.
136 citations
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March 1998 in “Oncogene” Overexpression of E2F1 can lead to skin tumors and disrupt hair growth.
48 citations
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April 1995 in “PubMed” Testosterone helps beard and axillary hair cells grow by releasing growth factors from dermal papilla cells.
November 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Researchers identified new cell types and genes in early hair follicle development.
8 citations
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January 2002 in “Piel” Postmenopausal women may experience frontal hairline and eyebrow loss due to cicatricial fibrosis.
3 citations
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January 2021 in “Skin appendage disorders” Trichoscopy is useful for correctly diagnosing tinea capitis in adults with unexplained hair loss.
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January 2009 in “International Journal of Trichology” Trichoscopy can diagnose female hair loss with high accuracy by looking for specific patterns in hair and scalp appearance.
14 citations
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January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
990 citations
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October 1999 in “Development” Activated LEF/TCF complexes are crucial for hair development and cycling.
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May 2008 in “Journal of Clinical Oncology” A woman's ovarian tumor causing high testosterone was successfully removed, and her symptoms improved.
54 citations
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June 2003 in “The journal of investigative dermatology. Symposium proceedings/The Journal of investigative dermatology symposium proceedings” Disruptions in hair follicle fibroblast dynamics can cause hair growth problems.
November 2017 in “Pediatrics in Review” A 4-year-old girl with hair loss was diagnosed with early-onset trichotillomania and improved with behavioral interventions.
July 2022 in “British Journal of Dermatology” 99 citations
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January 2004 in “Progress in brain research” Neurotrophins are important for hair growth and could help treat hair loss.
7 citations
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March 2018 in “Experimental Dermatology” Acne lesions don't show increased keratinocyte growth compared to healthy hair follicles.
January 2026 in “Skin Appendage Disorders” The trichogram is a practical, non-invasive, and cost-effective tool for diagnosing female androgenetic alopecia.
3 citations
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June 2016 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” A patient with hair loss condition grew excessive hair in areas covered by a cast.
July 2025 in “Cell & Bioscience” Specific immune cells and pathways contribute to hair follicle inflammation and hair loss, suggesting potential treatments for lichen planopilaris.
133 citations
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July 1994 in “Journal of Dermatological Science” Human hair growth can be influenced by certain growth factors and has specific metabolic needs.
154 citations
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October 1996 in “Proceedings of the National Academy of Sciences of the United States of America” Estrogen affects hair growth and skin cell multiplication.
April 2012 in “Cancer research” Blocking mTORC1 may help prevent skin cancer by stopping the growth of certain skin stem cells.
64 citations
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January 2004 in “American journal of clinical dermatology” Folliculitis is an inflammation of hair follicles that requires proper diagnosis and treatment based on the specific cause.