May 2022 in “Experimental dermatology” Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
30 citations
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January 1999 in “Journal of Cutaneous Pathology” Spiny keratoderma may be ectopic hair formation on palms and soles.
25 citations
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April 2015 in “Current problems in dermatology” Hair regrowth slows with age and can be affected by treatments that change enzyme activity in the skin.
99 citations
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October 2008 in “Journal of Investigative Dermatology” Mutations in the ST14 gene cause skin and hair issues by disrupting important protein processing.
March 2025 in “The Open Dermatology Journal” Trichorrhexis nodosa is common hair breakage, often due to styling, and new treatments are being explored.