26 citations
,
August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.
20 citations
,
February 1994 in “In vitro cellular & developmental biology. Animal” Wool follicles can grow in a lab with the right nutrients and conditions.
4 citations
,
April 2012 in “The journal of investigative dermatology/Journal of investigative dermatology” Krt16-deficient mice help understand skin disorders like PC and FNEPPK.
1 citations
,
September 2023 in “Animals” A new goat gene affects cashmere fiber thickness; certain variations can make the fibers coarser.
Defective nuclear transport may cause gene expression changes in Progeria.
51 citations
,
September 2012 in “Gene” The research identified a gene in sheep important for wool quality, which could help improve wool traits.
24 citations
,
November 1997 in “Journal of Biological Chemistry” Mouse high-glycine/tyrosine proteins have distinct patterns in hair follicles, peaking at specific hair cycle days.
118 citations
,
January 2013 in “Biomaterials” Keratin from human hair shows promise for medical uses like wound healing and tissue engineering.
98 citations
,
May 2016 in “Genes” Understanding wool keratin-associated proteins in sheep can help improve wool quality through selective breeding.
40 citations
,
November 2021 in “International Journal of Molecular Sciences” Mutant keratins cause inflammation in Epidermolysis Bullosa Simplex, suggesting targeting them could help treat the disorder.
26 citations
,
January 2007 in “Organogenesis” Bioengineering can potentially treat hair loss by regenerating hair follicles and cloning hair, but the process is complex and needs more research.
2 citations
,
February 2021 in “Journal of comparative pathology” Sheep with chronic Sarcoptes scabiei dermatitis have altered keratin expression in their skin.
Researchers made a mouse model with curly hair and hair loss by editing a gene.
January 2025 in “Kuwait Journal of Science” KRT71 gene variants may influence camel hair shape but don't fully explain it.
20 citations
,
September 2004 in “Journal of Anatomy” The inner root sheath evolved to help hair grow safely through the skin in mammals.
170 citations
,
January 2010 in “animal” Hair follicle growth and fiber production in animals are influenced by chemical signals, proteins, pigmentation, genetics, and nutrients.
115 citations
,
November 2008 in “Proceedings of the National Academy of Sciences” Reptiles have genes similar to hair proteins, suggesting hair's genetic origins predate mammals.
93 citations
,
July 2006 in “Journal of Investigative Dermatology” K25, K27, and K28 are found in all inner root sheath layers of hair, while K26 is only in the cuticle.
20 citations
,
December 1999 in “Journal of Investigative Dermatology” Mutations in the hHb6 gene cause the hair disorder monilethrix.
10 citations
,
November 2021 in “International journal of molecular sciences” Sheep and goat hair fibers are complex due to keratin-associated proteins, which are important for fiber properties and growth.
January 2026 in “International Journal of Molecular Sciences” S100a4 is key for hair growth in cashmere goats.
May 2025 in “Journal of Developmental Biology” Jawless vertebrates have teeth proteins similar to those in mammalian hair and nails.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
36 citations
,
December 1991 in “Journal of Dermatological Science” Human nails contain both skin and hair keratins, each needing different extraction methods.
May 2024 in “Proteome science” Bleaching damages hair by reducing the quality of keratin and keratin-associated proteins.
The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
14 citations
,
January 2021 in “Stem cell research & therapy” Human skin cells with stem-like features can help create new hair follicles and sebaceous glands when combined with other cells.
6 citations
,
August 2023 in “BMC genomics” The study found that genetic differences related to hair growth and other traits help cashmere goats adapt to high-altitude environments.
October 2024 in “Cosmetics” Afro-textured hair needs personalized care due to its unique genetic traits.
14 citations
,
May 2022 in “Stem cell reports” The study created hair-bearing skin models that lack a key protein for skin layer attachment, limiting their use for certain skin disease research.