The document concludes that understanding hair's composition and the effects of treatments can lead to better hair care products.
October 2018 in “Deep Blue (University of Michigan)” Hair follicle development involves specific cells and genes, crucial for understanding severe skin diseases like harlequin ichthyosis.
K15 and Id3 are important in hair follicle regeneration, with K15 increasing in early stages and Id3 responding later.
March 2026 in “Journal of the mechanical behavior of biomedical materials/Journal of mechanical behavior of biomedical materials” Hair cuticles remain stable and resilient under stress due to strong protein content and crosslinking.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
87 citations
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February 2000 in “Journal of Investigative Dermatology” Stem cells in developing hair follicles move to specific areas as they mature.
82 citations
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January 2006 in “International review of cytology” Vertebrate skin evolved to be more specialized and complex, especially in land animals.
63 citations
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April 2005 in “Mechanisms of development” Mice with too much Claudin-6 have skin barrier problems and abnormal hair growth.
57 citations
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August 2002 in “American Journal Of Pathology” Cathepsin L deficiency causes hair and skin issues in mice.
55 citations
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August 2013 in “PloS one” Genetic differences between young and old Tan sheep explain why their fleece changes from curly to straight as they age.
54 citations
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November 1986 in “Journal of the American Academy of Dermatology” Generalized trichoepitheliomas with hair loss may indicate myasthenia gravis.
32 citations
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February 2019 in “eLife” BMP signaling is essential for the development of touch domes.
11 citations
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January 2013 in “Veterinary dermatology” Keratinocytes from dog hair follicles can create a functional skin layer in a lab model, useful for dog skin therapy.
10 citations
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July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.
7 citations
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August 2020 in “Genes” Different genes are active in dogs' hair growth and skin, similar to humans, which helps understand dog skin and hair diseases and can relate to human conditions.
5 citations
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February 2022 in “Biophysical journal” The model shows that filament flexibility and amino acid differences affect how fast intermediate filament proteins assemble.
4 citations
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July 2022 in “International Journal of Cosmetic Science” Hair moisture behavior helps tell apart different chemical treatments and reveals insights into hair structure.
3 citations
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October 2022 in “Frontiers in Surgery” Proteomics combined with other technologies can lead to a better understanding of skin diseases.
2 citations
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May 2023 in “Cancer medicine” KRT80 may worsen cancer by increasing growth and spread, but its full effects on treatment and outcomes need more research.
1 citations
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January 2025 in “Advances in Wound Care” Dermal sheath cells help heal wounds by showing both skin and connective tissue traits.
November 2025 in “Cancer Management and Research” Targeting Keratin 17 may help overcome cancer therapy resistance.
March 2025 in “Experimental Dermatology” Overexpression of IKZF1 and Ikaros causes hair loss in mice similar to alopecia areata.
February 2025 in “Animals” Understanding proteins in skin structures like claws and hair is crucial for future research.
May 2024 in “International Journal of Cosmetic Science” Disulfide bonds are crucial for hair's strength, especially when wet.
January 2024 in “Skin appendage disorders” Environmental pollutants can damage hair health and cause hair loss.
July 2023 in “International Journal of Cosmetic Science” Biopolymers are increasingly used in cosmetics for their non-toxicity and skin benefits, with future biotech advancements likely to expand their applications.
February 2015 in “American journal of medical and biological research” Balding hair follicles have less growth-promoting factors and more inhibitory factors, leading to hair loss.
research Hair
January 1983 in “Elsevier eBooks” Hair grows from living roots, is made of dead keratin, and goes through growth, rest, and shedding stages.
October 2023 in “International Journal of Cosmetic Science” WS Biotin, a new form of D-Biotin, improves water solubility and shows potential for hair and skin care without being toxic at low levels.
170 citations
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January 2010 in “animal” Hair follicle growth and fiber production in animals are influenced by chemical signals, proteins, pigmentation, genetics, and nutrients.