10 citations
,
February 2006 in “Archives of dermatology” A man's chest hair turned white after a shingles infection, possibly due to virus-damaged pigment cells.
15 citations
,
July 2004 in “AIDS” Indinavir therapy can cause reversible skin, hair, and nail darkening.
4 citations
,
January 2015 in “Dermatology Online Journal” Smoking can cause yellowing of upper lip hair.
November 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” The study suggests a link between varicella-zoster virus and segmental vitiligo, with evidence of the virus disrupting skin pigment cells.
December 2018 in “European Journal of Pediatric Dermatology/PD. European journal of pediatric dermatology” Segmental vitiligo affects hair follicle melanocytes, causing small, uniform depigmented spots.
March 2026 in “Journal of Investigative Dermatology”
2 citations
,
September 2022 The PER3 rs772027021 SNP may cause mild skin pigmentation changes in a new subtype of dyschromatosis universalis hereditaria.
4 citations
,
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.
1 citations
,
January 2020 in “Research Square (Research Square)” Inherited color dilution in Rex rabbits is linked to DNA methylation changes in hair follicles.
Low vitamin C caused bleeding and corkscrew hair, resolved with vitamin C treatment.
March 2013 in “Pigment Cell & Melanoma Research” A gene called Taqpep affects cat coat patterns like stripes and blotches.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
3 citations
,
March 2019 in “Journal of Pigmentary Disorders”
November 2025 in “Frontiers in Veterinary Science” A 1.0% tyrosine diet increases melanin in chicken feathers.
17 citations
,
January 2011 in “The Korean Journal of Hepatology” Vogt-Koyanagi-Harada disease can develop during interferon therapy for chronic hepatitis C.
TBX3 gene affects horse coat color, with higher expression in darker areas.
May 2011 in “Journal of Clinical Neuroscience” The woman was diagnosed with Vogt–Koyanagi–Harada disease and successfully treated with medication, restoring her vision and stopping headaches.
18 citations
,
January 2020 in “Ecology and evolution” Genes related to pigmentation, body rhythms, and behavior change during hares' seasonal coat color transition, with a common genetic mechanism in two hare species.
2 citations
,
November 2022 in “IP Indian journal of clinical and experimental dermatology” Dermoscopic and histopathological features combined can help diagnose Pityriasis versicolor.
20 citations
,
September 2021 in “Nature communications” Cat color patterns are determined early in development by gene expression and epidermal changes, with the Dickkopf 4 gene playing a crucial role.
6 citations
,
November 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Gene expression, especially Dkk4, is key to cat color patterns.
2 citations
,
March 1942 in “JAMA” 1 citations
,
December 2024 in “Case Reports in Dermatology” Cyclophosphamide likely causes skin darkening by affecting hair follicles.
December 2025 in “Sustainable Chemistry One World” Mangosteen waste can be used as an eco-friendly natural hair dye, producing a lasting reddish color and strengthening hair.
7 citations
,
January 2021 in “Frontiers in genetics” Inherited color dilution in rabbits is linked to DNA methylation changes.
May 2025 in “International Medical Case Reports Journal” Lichen planus pigmentosus may indicate undetected hepatitis C infection.
April 2023 in “International journal of dermatology and venereology” Dermoscopic features can help identify and differentiate types of pityriasis versicolor.
14 citations
,
September 2017 in “General and comparative endocrinology” Barn owls with smaller black spots have higher testosterone levels, which might be due to genetic effects on hormone regulation rather than hormone effects on coloration.
6 citations
,
September 2013 in “Advanced materials research” Non-ionic silicone emulsion best protects hair color from sunlight.
24 citations
,
September 2008 in “Clinical and experimental dermatology” Repigmentation in vitiligo may come from melanocyte stem cells in the skin.