35 citations
,
May 2011 in “Experimental Dermatology” Aging causes changes in hair follicles, leading to weaker hair growth.
November 2024 in “International Journal of Cosmetic Science” Haircare products with a pH between 5 and 7 are best for maintaining healthy hair.
98 citations
,
June 2001 in “Journal of biological chemistry/The Journal of biological chemistry” A cluster of sulfur-rich hair protein genes was found on chromosome 17.
30 citations
,
March 2019 in “Archives animal breeding/Archiv für Tierzucht” The KRTAP15-1 gene affects cashmere fiber thickness in goats.
30 citations
,
December 2011 in “Journal of biological chemistry/The Journal of biological chemistry” Keratin 17 is modified by RSK1 in response to growth and stress, affecting skin growth and stress response.
107 citations
,
December 2013 in “International Journal of Dermatology” The document concludes that hair is complex, with a detailed growth cycle, structure, and clinical importance, affecting various scientific and medical fields.
27 citations
,
June 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” The study found that variations in hair protein genes are likely due to evolutionary deletions or duplications.
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.
2 citations
,
October 2012 in “Experimental Dermatology” Deleting the Sox21 gene changes hair lipid composition and increases cholesterol sulfate levels.
48 citations
,
July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Hair growth is controlled by specific gene clusters and proteins, and cysteine affects hair gene expression in sheep.
30 citations
,
September 2018 in “International Journal of Cosmetic Science” Bleaching hair causes severe structural and chemical damage, including protein loss and oxidation.
33 citations
,
February 2012 in “British Journal of Dermatology” Mutations in the p63 gene affect skin adhesion, barrier integrity, and hair growth.
44 citations
,
May 2008 in “Acta Zoologica” Keratinization in embryos helped vertebrates adapt to land by forming a protective skin barrier.
15 citations
,
May 2013 in “International Journal of Cosmetic Science” Different ethnic hair types have unique nanoscopic and molecular features despite having the same basic keratin structure.
June 2017 in “University of the Arts London Research Online (University of the Arts London)” Polymers help reduce damage and improve bleached hair when used during or after bleaching.
47 citations
,
September 2004 in “Journal of Biological Chemistry” Hoxc13 regulates specific hair protein genes on mouse chromosome 16.
100 citations
,
December 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Researchers mapped and categorized specific keratin-associated protein genes on human chromosome 21q22.1.
51 citations
,
January 2007 in “The journal of investigative dermatology/Journal of investigative dermatology” Scientists discovered a unique hair protein, KAP24.1, with a special structure, found only in the upper part of hair cuticles.
16 citations
,
January 2017 in “Physical chemistry chemical physics/PCCP. Physical chemistry chemical physics” The 3D structure of a key hair protein was modeled, revealing specific helical structures and stabilization features.
48 citations
,
November 2002 in “Journal of biological chemistry/The Journal of biological chemistry” Genetic variations in hair keratin proteins exist but don't significantly affect hair structure.
5 citations
,
January 2022 in “Scientific reports” The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.
26 citations
,
January 2011 in “Open Journal of Genetics” The KAP13-3 gene in sheep affects wool quality by influencing keratin assembly.
30 citations
,
December 2014 in “BMC Genetics” Certain genes and proteins may influence wool growth in Aohan fine wool sheep.
70 citations
,
December 2004 in “Differentiation” The study identified and characterized new keratin genes linked to hair follicles and epithelial tissues.
169 citations
,
May 2006 in “Genes & Development” Keratin 17 is crucial for normal hair growth by regulating hair cycle transitions with TNFα.
25 citations
,
May 1994 in “Journal of Investigative Dermatology” Researchers found a new gene, hacl-1, that is active in mouse hair follicles during hair growth and may be important for hair biology.
54 citations
,
January 2013 in “Journal of Biological Macromolecules” A new method effectively separates keratin-associated proteins and keratin from human hair.
November 2022 in “Research Square (Research Square)” Keratin-associated proteins have ancient origins and were used for different purposes before being adapted for hair in mammals.
62 citations
,
January 2004 in “The journal of investigative dermatology/Journal of investigative dermatology” A second domain of high sulfur KAP genes on chromosome 21q23 is crucial for hair structure.
The research found that people's hair proteins vary, especially by ethnicity and body part, which could help identify individuals in forensic science.