5 citations
,
November 2012 in “Journal of the American Academy of Dermatology” A 3-year-old girl has short anagen syndrome, causing her hair to stay short.
Fair skin, not red hair, affects health due to possible vitamin D deficiency.
2 citations
,
November 2004 in “Blood” RXRa is crucial for Th2 immune cell development and may link nutrition to immune health.
13 citations
,
July 2016 in “Indian Journal of Dermatology” DPR can show different hair characteristics, as seen in two brothers with normal hair.
1 citations
,
January 2013 in “International Journal of Trichology” A girl with red hair developed hair-pulling and body image disorders after being bullied for her hair color.
8 citations
,
May 2003 in “Clinical and Experimental Dermatology” A 14-year-old girl's black hair showed unique color changes, suggesting early greying.
28 citations
,
October 2004 in “Differentiation” A gene deletion causes the "hairless" trait in Iffa Credo rats.
45 citations
,
January 2010 in “Journal of Veterinary Medical Science” A gene mutation causes curly hair and hair loss in rats.
64 citations
,
March 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” GPRC5D is linked to the formation of hair, nails, and certain tongue areas.
35 citations
,
April 2008 in “Journal of Biological Chemistry” Hirosaki hairless rats lack hair due to missing DNA with key keratin genes.
June 2025 in “British Journal of Dermatology” Segmented hair color changes can indicate active alopecia areata.
17 citations
,
January 2015 in “Dermatology online journal” A patient's grey hair regained color during treatment with adalimumab.
94 citations
,
April 2018 in “Nature Genetics” New genetic locations explain much of hair color variation in Europeans.
210 citations
,
February 2008 in “Nature genetics” Mutations in the P2RY5 gene cause autosomal recessive woolly hair.
1 citations
,
April 2022 in “AACE clinical case reports” A 36-year-old person with a female appearance but male chromosomes was diagnosed with a rare enzyme deficiency affecting sexual development.
September 1973 in “Primates”
January 1957 in “Nihon Chikusan Gakkaiho” Rabbit hair color is influenced by the shape and distribution of pigment granules.
50 citations
,
February 2004 in “Genomics” A gene mutation causes lanceolate hair in rats by disrupting hair shaft integrity.
November 2025 in “Skin Health and Disease” Autosomal recessive woolly hair is rare and involves tightly coiled hair without other health issues.
November 2011 in “Journal of Investigative Dermatology” TRH in hair follicles can influence hair color by increasing melanin.
1 citations
,
January 2020 in “Research Square (Research Square)” Inherited color dilution in Rex rabbits is linked to DNA methylation changes in hair follicles.
9 citations
,
November 2015 in “JAMA dermatology” A 91-year-old woman's hair turned black in one spot, with skin changes underneath.
11 citations
,
January 2012 in “Journal of cell science” Rac1 is essential for proper hair structure and color.
January 2018 in “bioRxiv (Cold Spring Harbor Laboratory)” The mutant HR bmh protein mis-localizes in cells, affecting skin and hair development.
75 citations
,
October 2010 in “Mammalian genome” Sphynx cats are hairless and Devon Rex cats have curly hair due to specific genetic mutations.
July 2024 in “Dermatology and Therapy” Darker hair colors may increase the risk of alopecia areata, while lighter hair colors may decrease it.
31 citations
,
November 2015 in “PloS one” Reducing Tyrosinase prevents mature color pigment cells from forming in mouse hair.
3 citations
,
March 2009 in “Hirosaki University Repository for Academic Resources (Hirosaki University)” Hirosaki hairless rats have sparse, twisted hair due to missing hair keratin genes.
13 citations
,
January 2001 in “Pediatric dermatology” A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
126 citations
,
October 1998 in “Experimental Dermatology” The hr gene is crucial for skin and hair health, with mutations causing hair disorders.