26 citations
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January 1993 in “Dermatology” A rare case of isolated trichothiodystrophy was identified, marked by brittle hair with low sulfur content.
February 2023 in “Cosmoderma” An infant with complete hair loss was diagnosed with a genetic disorder affecting hair growth.
8 citations
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January 1984 in “Veterinary Pathology” Toy poodles may develop harmless mineral deposits around hair follicles as they age.
April 2020 in “International journal of research in dermatology” An 8-year-old girl has a rare, irreversible hair loss condition caused by a genetic mutation.
July 2011 in “Microscopy and microanalysis” Human hair's structure makes it tough and resistant to breaking.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” The mutant HR bmh protein mis-localizes in cells, affecting skin and hair development.
The naked mutation in mice causes hair loss and helps identify keratin genes.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
December 1978 in “Indian Journal of Otolaryngology and Head & Neck Surgery” 48 citations
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January 2002 in “Journal of Structural Biology” Trichocyte filaments have a low-density core and may include proteins for hair structure.
1 citations
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August 2020 The Shaven mutation in mice affects hair growth and causes a greasy coat due to abnormal lipid content.
14 citations
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September 1999 in “Mammalian genome” The scraggly mutation causes hair loss and skin defects in mice.
15 citations
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March 1996 in “PubMed” Anorexia nervosa may cause a hair defect called pili torti due to malnutrition and high vitamin A levels.
27 citations
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November 2007 in “Genomics” Mutations in specific keratin genes cause improper hair structure in mice due to faulty keratin protein assembly.
January 2005 in “Journal of Cutaneous Pathology” A new benign nail tumor called onychoblastoma was identified.
27 citations
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September 1988 in “PubMed” Hair follicle shape determines hair type: curly, straight, or in-between.
4 citations
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July 2010 in “International Journal of Cosmetic Science” Curved human hair has different structures on its convex and concave sides.
2 citations
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March 1977 in “Journal of animal science/Journal of animal science ... and ASAS reference compendium” Defective mink guard hairs have split tips and missing cuticle cells, causing a metallic sheen.
18 citations
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February 2006 in “Genomics” A new genetic mutation in mice causes permanent hair loss and skin wrinkling.
A 5-year-old girl has sparse, dry, and brittle hair but is otherwise healthy.
October 2024 in “Skin Research and Technology” Pili annulati causes zebra-striped hair but doesn't affect hair strength or quality of life.
1 citations
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January 2015 in “Indian Journal of Veterinary Pathology” Two dogs had different types of hair follicle tumors.
27 citations
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July 1997 in “PubMed” The harlequin ichthyosis mouse mutation causes thick skin and early death, resembling a human skin disorder.
January 2023 in “Skin appendage disorders” Two Hispanic women developed Plica neuropathica, a condition causing tangled hair, possibly due to hair damage and various risk factors.
February 1999 in “The anatomical record” Two mouse mutants have defective hair cuticle cross-linking.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.
66 citations
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June 2004 in “Biophysical Journal” Hard α-keratin in hair has a unique, nonordered structure, different from other fibers.
20 citations
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January 2002 in “Laboratory Animals” Mutations in the hairless gene cause hair loss and skin cysts in rhesus macaques.