December 2021 in “Molecular genetics and genomics” Cats with abnormal hair had DSG4 gene changes causing hair problems.
61 citations
,
April 1980 in “Journal of the American Academy of Dermatology” A new syndrome may link skin, growth, mental, and hair issues.
11 citations
,
March 2004 in “Journal of Comparative Pathology” Norfolk Terriers have a genetic skin defect causing scaling and blisters due to a keratin issue.
October 2025 in “Journal of Veterinary Diagnostic Investigation” Black hair in cats has higher cortisol levels than white hair.
9 citations
,
June 2024 in “Cell Reports” Hair follicles play a crucial role in regulating skin barrier function.
November 2025 in “BMC Genomics” Genetic differences in sheep affect wool type, with fat and immune genes influencing hair traits.
7 citations
,
February 2018 in “Journal of Investigative Dermatology” Fat tissue and a specific protein are crucial for healthy hair growth and maintenance.
26 citations
,
August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.
Hair dysplasias involve various hair disorders causing fragility, breakage, and poor hair adhesion.
29 citations
,
January 2013 in “The journal of investigative dermatology/Journal of investigative dermatology” P-cadherin is crucial for hair follicle pigmentation but not skin pigmentation.
7 citations
,
April 2000 in “Mammalian Genome” A new mutation in mice causes crooked whiskers and messy hair.
70 citations
,
March 1997 in “Journal of Investigative Dermatology”
December 2025 in “Frontiers in Medicine” ARWH is a rare hair disorder with no cure, but potential treatments include minoxidil and other therapies.
143 citations
,
October 2008 in “Journal of The American Academy of Dermatology” Comma hairs are a specific sign of tinea capitis when viewed with videodermatoscopy.
70 citations
,
February 2007 in “Journal of Investigative Dermatology” K39 and K40 are the last keratins expressed in hair development, completing the hair keratin catalog.
1 citations
,
January 1989 in “Springer eBooks”
9 citations
,
July 2019 in “Folia Morphologica” Brandt's hedgehog has thick skin on its back and many glands near its nostrils.
February 2013 in “Journal of the American Academy of Dermatology” Uncombable hair syndrome causes dry, frizzy hair that can't be combed flat, seen in a young child.
December 2011 in “Korean journal of veterinary research” A Miniature Pinscher dog with hair loss and scaling was diagnosed with pattern alopecia and improved with melatonin treatment.
14 citations
,
May 1979 in “International Journal of Dermatology” Trichostasis spinulosa mainly affects the nose, with many tiny hairs in one follicle, possibly influenced by hormones and sunlight.
January 2026 in “Communications Biology” Yak hair follicles adapt to cold through specific gene regulation, enhancing cell growth.
8 citations
,
May 2008 in “Applied surface science” Mummy hair from the Taklamakan desert has calcium and phosphorus inside.
24 citations
,
December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
February 2023 in “Mağallaẗ Tikrīt li-l-ʻulūm al-ṣirfaẗ/Tikrit journal of pure science” Horse skin has a layered epidermis, a dermis with hair follicles, sweat and sebaceous glands, and is supplied by small arteries.
55 citations
,
May 1995 in “The journal of investigative dermatology/Journal of investigative dermatology” 7 citations
,
June 2018 in “Journal of the American Academy of Dermatology” The document suggests finding a simpler, cheaper way to diagnose Uncombable Hair Syndrome.
79 citations
,
December 1999 in “Mechanisms of Development” Whn is crucial for hair growth in certain areas by controlling a specific gene.