31 citations
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April 2004 in “Journal of Investigative Dermatology” A new mouse gene, Keratin 17n, is mainly found in nail tissue and may explain why mice without Keratin 17 don't have nail issues.
396 citations
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May 2011 in “Cell stem cell” Nerve signals are crucial for hair follicle stem cells to become skin stem cells and help in wound healing.
December 2025 in “Skin Appendage Disorders” Scalp apocrine glands may help remove waste and balance electrolytes, but their role is not fully understood.
1 citations
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January 2022 in “Clinical dermatology review” A young man's cheek papule was identified as a benign hair follicle tumor using a skin surface microscope.
22 citations
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January 1990 25 citations
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January 2003 in “Plastic & Reconstructive Surgery” Nail-matrical fibroblasts can make non-nail cells produce hard keratin, useful for nail repair.
September 2019 in “Journal of Investigative Dermatology” Smoking and certain health conditions like thyroid disease may make palmoplantar pustulosis harder to treat.
October 2025 in “Journal of Investigative Dermatology” Hair follicle dermal stem cells help control hair growth timing by regulating signals at the hair germ–dermal papilla interface.
2 citations
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May 2009 in “Medicine” Hair and nails can help diagnose diseases, with nail issues often linked to skin conditions and hair loss having various causes and treatments.
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November 1978 in “Biochemistry” α-type filaments in guinea pig hair follicles have unique structural features.
33 citations
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October 1996 in “Journal of Investigative Dermatology” December 2004 in “Differentiation” 35 citations
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September 1994 in “Journal of Investigative Dermatology” May 2020 in “International journal of dermatology and venereology” Hair matrix cysts are rare skin nodules with unique features, often needing surgical removal.
15 citations
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April 1970 in “PubMed” Netherton's syndrome may have a familial link and doesn't always include atopy.
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January 2014 in “Indian journal of dermatology, venereology, and leprology” Trichosporon inkin and Trichosporon mucoides can cause white piedra on scalp hair.
1 citations
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January 2012 in “International journal of trichology” Sheep hair follicle cells can grow a lot but need the dermal papilla to do so.
12 citations
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January 2013 in “Acta Histochemica” Junctional proteins stabilize the inner root sheath and connect the companion layer in human hair.
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Dermal-epidermal interactions are crucial for hair growth and maintenance.
22 citations
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November 2008 in “The journal of investigative dermatology/Journal of investigative dermatology” Cystatin M/E helps in the final stages of hair and nail formation by controlling certain enzymes.
40 citations
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June 2013 in “Biomaterials” Scientists created 3D hair-like structures that could help study hair growth and test treatments.
August 2018 in “Pediatric Dermatology” A baby had a unique skin condition with a pale patch and surrounding dark hairs, not linked to other health issues.
4 citations
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January 2011 in “International Journal of Trichology” Treating scalp issues in hair-pulling disorder helps hair regrow and reduces itch.
September 1989 in “PubMed” The method allows detailed observation of hair tissue structures.
September 2023 in “Journal of the American Academy of Dermatology” Podiatrists perform nearly all nail excisions in the US.
62 citations
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October 1999 in “Journal of Investigative Dermatology” New mutations in hair keratin genes can change hair structure and cause monilethrix, with nail issues more common in certain gene mutations.
22 citations
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October 1996 in “Dermatologic clinics” Understanding intermediate filaments helps explain hair health and related diseases.
11 citations
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December 2015 in “Indian journal of dermatology, venereology, and leprology” Dermoscopy quickly and accurately diagnosed a rare hair disorder in a 12-year-old girl.
11 citations
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January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.