26 citations
,
August 2014 in “Veterinary Dermatology” Sphynx cats have abnormal hair follicles and keratinization affecting their skin.
September 1973 in “Primates”
356 citations
,
December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
April 2023 in “Journal of Investigative Dermatology” Dkk4 protein helps control how hair grows and its arrangement.
26 citations
,
August 1971 in “Journal of Morphology” Lizards can regrow their tail scales with the same structure, distribution, and gender-specific features as the original ones, and this unique ability is not seen in adult mammals.
March 2026 in “Indian Journal of Dermatopathology and Diagnostic Dermatology” Corkscrew hairs can help diagnose trichotillomania.
10 citations
,
August 2023 in “Developmental cell” The research maps the complex development of early mouse skin, identifying diverse cell types and their roles in forming skin layers and structures.
A six-year-old girl with extra hair on her elbows was treated with hair removal methods.
165 citations
,
September 2001 in “Genes & development” CDP is crucial for lung and hair follicle cell development.
16 citations
,
January 2015 in “Annals of Dermatology” The study found specific hair and scalp patterns for different types of hair loss in Koreans, noting racial differences affect diagnosis.
July 2019 in “Indian dermatology online journal” Alopecia areata can show unusual red-dotted vessels and dithranol treatment may mask typical patterns.
47 citations
,
February 2014 in “Journal of Cutaneous Pathology” Matrical tumors share a common growth mechanism involving the Wnt pathway and consistent PHLDA1 expression.
49 citations
,
September 2004 in “Journal of the European Academy of Dermatology and Venereology” Careful light microscopy is crucial for detecting mild cases of pili annulati, which weakens hair and varies widely in expression.
Hair feels different when touched and rubs together in various ways.
38 citations
,
July 2004 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.
86 citations
,
May 2002 in “Journal of Investigative Dermatology” A new keratin, hK6irs1, is found in all layers of the hair follicle's inner root sheath.
63 citations
,
December 1998 in “Biochimica et Biophysica Acta (BBA) - Protein Structure and Molecular Enzymology” The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
2 citations
,
January 1960 in “Australian Journal of Biological Sciences” The Naked gene in mice causes abnormal sebaceous glands and disrupts hair follicle organization.
87 citations
,
November 2002 in “Journal of Investigative Dermatology”
May 2022 in “Experimental dermatology” Trichothiodystrophy hair is structurally abnormal with protein and organization issues.
45 citations
,
December 1991 in “Annals of the New York Academy of Sciences” Adhesion molecules are crucial for the development of feathers and hair.
53 citations
,
July 2002 in “Journal of Investigative Dermatology” The Dfl mutation in mice causes poor sebaceous gland function and complete hair loss.
43 citations
,
April 2010 in “Developmental Biology” Sebaceous glands can form new hair follicles when activated, but hair follicle bulges cannot.
34 citations
,
March 2009 in “Journal of Investigative Dermatology” Proteomic analysis can identify genetic differences in mouse hair, helping understand hair defects and variations.
126 citations
,
January 1987 in “Current topics in developmental biology/Current Topics in Developmental Biology” Different keratin proteins are expressed in various epithelial cells at different stages, affecting cell structure and function.
17 citations
,
June 1990 in “PubMed” Hair varies in size and features depending on body region.
44 citations
,
May 2008 in “Acta Zoologica” Keratinization in embryos helped vertebrates adapt to land by forming a protective skin barrier.
28 citations
,
July 2000 in “PubMed” Hair structure forms the same way inside and outside the body.