23 citations
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July 2016 in “JAMA Ophthalmology” CDH3-related disease causes worsening eye and hair issues.
24 citations
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May 2019 in “PLOS genetics” Mutations in the HEPHL1 gene cause abnormal hair and cognitive issues.
June 2021 in “Asian Journal of Medical Sciences” Vitamin B12 deficiency can cause reversible skin darkening.
April 2015 in “Archives of disease in childhood” A chubby child can still be malnourished.
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January 2008 in “Indian Journal of Dermatology” Pigmentary mosaicism causes skin color changes and can affect multiple body systems, but has no cure.
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January 1983 in “PubMed” Trichothiodystrophy involves brittle hair due to low sulfur amino acids, not a transport defect.
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April 2004 in “Acta Clinica Belgica” UV light makes skin signs of lack of carotene and vitamin A more visible.
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June 2005 in “Acta Biochimica Polonica” Splenic eumelanin in C57BL/6 mice is different from hair eumelanin.
October 2020 in “The American Journal of Gastroenterology” Early diagnosis and treatment of hereditary hemochromatosis can prevent serious complications.
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September 2010 in “Pigment Cell & Melanoma Research” We know less about human hair pigmentation than mouse coat color, but pH and cysteine levels are key factors.
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November 1991 in “Journal of Neuropathology & Experimental Neurology” Brindled mice show abnormal catecholamine neuron development due to copper deficiency.
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January 1971 in “Pathology” Children's hair needs only a little iron for normal growth, regardless of their body's iron levels.
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July 2019 in “Clinics in Dermatology” The document concludes that while white skin, nail, and mucosa diseases increase skin cancer risk, they are generally harmless, especially compared to darker pigmentation conditions.
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August 1986 in “Archives of Dermatology” Vitamin B12 deficiency can cause skin and hair color changes, which are reversible with treatment.
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January 2013 in “Human Mutation” A mutation in the HOXC13 gene causes hair and nail problems in a Syrian family.
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February 2005 in “British Journal of Haematology” Chemotherapy caused the patient's hair to have alternating thick and thin segments.
30 citations
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August 2005 in “British journal of dermatology/British journal of dermatology, Supplement” A specific gene mutation causes hair loss and potential eye issues, even if vision seems normal.
31 citations
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February 2007 in “Journal of Structural Biology” Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.
September 2016 in “Journal of Dermatological Science” Polarizing light microscopy can easily and reliably diagnose congenital keratinizing disorders like Netherton syndrome.
15 citations
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May 2013 in “American Journal of Medical Genetics - Part A” People with X-linked hypohidrotic ectodermal dysplasia have no sweat ducts and less, thinner hair.
January 2007 in “Revista del Centro Dermatológico Pascua” A 2-year-old boy was diagnosed with a rare genetic condition causing fragile hair, intellectual issues, and short stature.
175 citations
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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.
1 citations
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December 2024 in “Case Reports in Dermatology” Cyclophosphamide likely causes skin darkening by affecting hair follicles.
27 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” April 2026 in “Spectrochimica Acta Part A Molecular and Biomolecular Spectroscopy” 84 citations
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June 1970 in “Journal of Investigative Dermatology” 7 citations
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July 2013 in “Acta Biochimica Polonica” Chemotherapy reduces splenic melanin in mice.
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January 1999 in “Dermatology”
August 2020 in “Research Square (Research Square)” Oxygen levels affect hair growth and color cells differently when they interact directly.
21 citations
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June 1991 in “Journal of Inherited Metabolic Disease” Selenium deficiency caused symptoms in a child, which improved with selenium supplements.