187 citations
,
May 1988 in “Differentiation” Trichocytic cytokeratins are found in hair, nails, tongue, and thymus cells, showing complex regulation in tissue development.
139 citations
,
October 2005 in “Journal of Investigative Dermatology” The nail matrix has a reduced immune response, protecting it from autoimmunity.
25 citations
,
January 2003 in “Plastic & Reconstructive Surgery” Nail-matrical fibroblasts can make non-nail cells produce hard keratin, useful for nail repair.
8 citations
,
April 2017 in “American Journal of Dermatopathology” Inflammation may cause nail issues in Cronkhite–Canada Syndrome.
110 citations
,
August 2004 in “British Journal of Dermatology” The ventral matrix is the main source of the nail plate.
60 citations
,
March 2006 in “Journal of Medical Genetics” A mutation in the KRTHB5 gene causes hair and nail issues.
119 citations
,
January 2000 in “British Journal of Dermatology” Different parts of the nail express different keratins, showing unique patterns of differentiation.
68 citations
,
December 2010 in “The journal of investigative dermatology/Journal of investigative dermatology” HOXC13 is essential for hair and nail development by regulating Foxn1.
22 citations
,
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.
10 citations
,
July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.
4 citations
,
October 2015 in “JAAD Case Reports” Surgical grafting may fix nail issues caused by valproic acid.
1 citations
,
April 2024 in “The Journal of Dermatology” Untreated epidermolysis bullosa acquisita can cause total hair and nail loss.
1 citations
,
January 2018 in “Journal of clinical & experimental dermatology research” Some nail changes in chilblains can look like lichen planus and may be severe and long-lasting.
February 2026 in “Journal of Clinical Medicine” Minoxidil may help nails grow faster and stronger.
July 2025 in “Journal of Investigative Dermatology” Minoxidil may improve nail growth and appearance.
September 2023 in “Journal of Cosmetic Dermatology” Minoxidil, a hair loss treatment, may help nails grow faster.
January 2015 in “Dermatology online journal” A man with total hair loss also developed a rare nail condition, likely due to autoimmune issues.
January 2014 in “Pathology” The document concludes that understanding nail anatomy is key for diagnosing nail diseases, early signs of nail melanoma may allow for less aggressive treatment, and specific genetic mutations are important in thyroid cancer prognosis and treatment.
18 citations
,
April 2016 in “American Journal of Dermatopathology” Larger nail cavity sizes suggest benign tumors, while smaller ones may need further biopsy to rule out cancer.
124 citations
,
December 1988 in “Differentiation” Trichocytic differentiation starts in cells with epithelial cytokeratins, transitioning to trichocytic cytokeratins in hair and gradually in nails.
58 citations
,
November 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” The Foxn1 gene is essential for normal nail and hair development.
22 citations
,
October 2007 in “Journal of Investigative Dermatology” Stem cells in mouse nails are found in the nail matrix and may control nail growth.
13 citations
,
September 1989 in “International Journal of Dermatology” Carbamazepine may cause reversible nail detachment.
11 citations
,
November 2005 in “The Journal of Dermatology” A man's crushed thumb caused unusual horizontal nail ridges on all fingers of one hand.
8 citations
,
January 2023 in “International journal of molecular sciences” Transglutaminase activity is important for skin and is found in both mammals and birds.
3 citations
,
November 2022 in “Frontiers in Medicine” Onychopapilloma likely originates from the nail bed, not the nail matrix.
March 2014 in “Journal of The American Academy of Dermatology” Reflectance confocal microscopy can noninvasively diagnose onychomatricoma by showing unique features different from healthy nails or nail fungus.
November 2022 in “Indian Journal of Dermatology/Indian journal of dermatology” Valproic acid can cause dark lines on nails.
6 citations
,
February 2015 in “Dermatologic Surgery” The document concludes that a new training model could improve dermatology residents' skills in nail procedures and lead to more nail cases being treated by dermatologists.
175 citations
,
December 1980 in “Archives of Dermatology” Trichothiodystrophy is a condition with brittle hair and various physical and mental issues due to low sulfur in proteins.