8 citations
,
March 2020 in “Colloids and surfaces. B, Biointerfaces” Heating hair proteins changes their structure and may improve their blood clotting ability.
2 citations
,
September 2004 in “International Journal of Cosmetic Science” Hair quality is genetically determined and linked to its composition and strength.
30 citations
,
April 2017 in “Journal of structural biology” Human hair keratin fibers have a detailed nano-scale structure that changes with different conditions.
40 citations
,
February 1990 in “Journal of The American Academy of Dermatology” A 17-year-old developed woolly hair nevus in adolescence, which is unusual, and over time the hair darkened and straightened slightly, but microscopic changes persisted.
42 citations
,
April 2008 in “Acta materialia” Different ethnicities and treatments affect human hair strength and structure.
7 citations
,
January 1959 in “Canadian Journal of Chemistry” Human and horse hair have similar end groups to wool and feathers.
May 2024 in “Frontiers in medicine” A genetic mutation in the LIPH gene causes tightly curled hair that stops growing in some Japanese individuals.
3 citations
,
January 2011 in “Proceedings of SPIE, the International Society for Optical Engineering/Proceedings of SPIE” Male mice have thicker skin, causing more light scattering than females.
October 2025 in “International Journal of Cosmetic Science” Hair properties vary by ethnicity and environment, affecting surface charge and particle deposition.
13 citations
,
May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
1 citations
,
April 2021 in “IntechOpen eBooks” The PCR technique can identify genetic differences in a wool-related gene among different sheep breeds, which may help improve wool and pelt quality.
Human hair affects millimeter radiowaves due to its keratin content.
3 citations
,
February 2022 in “Frontiers in cell and developmental biology” A specific RNA molecule, circCOL1A1, affects the growth and quality of goat hair by interacting with miR-149-5p and influencing cell growth pathways.
76 citations
,
February 1993 in “Journal of Biological Chemistry” KAP6 genes are conserved across species and active in hair follicles.
36 citations
,
June 1988 in “Australian Journal of Biological Sciences” Mouse epidermal growth factor injections in sheep affected wool growth and skin, but saline did not.
10 citations
,
May 2016 in “bioRxiv (Cold Spring Harbor Laboratory)” Lipid metabolism affects wool thickness in sheep.
December 2000 in “日本組織細胞化学会総会プログラムおよび抄録集” Treating hair with 1M sodium hydroxide increases its friction, making it better for small medical knots.
37 citations
,
May 2018 in “Frontiers in physiology” Certain RNA molecules are important for the development of wool follicles in sheep.
53 citations
,
October 2003 in “Genetics” The mK6irs1/Krt2-6g gene likely causes wavy hair in mice.
39 citations
,
April 2020 in “Clinical, Cosmetic and Investigational Dermatology” Asian hair is generally straight and thick, with unique disorders and properties, and more research is needed to understand it fully.
The goat hair keratin gene is very similar to sheep's and is strongly expressed in goat hair follicles.
16 citations
,
April 2017 in “ACM Transactions on Graphics” Light scatters differently from elliptical hair fibers than from circular ones, and a new model better predicts this behavior, especially for shiny highlights.
1 citations
,
January 2023 in “Chemical Engineering Journal”
July 2025 in “The Journal of Physiology” C-tactile afferents are linked to emotional touch and social bonding through hair movement.
August 2024 in “Current Issues in Molecular Biology” Key genes and RNAs related to hair growth in sheep were identified, aiding future breeding improvements.
15 citations
,
December 2015 in “Textile Research Journal” Adding amber particles to polyamide fibers makes them suitable for medical textiles like compression socks.
Key genes for mink fur have been identified, aiding conservation efforts.
3 citations
,
January 2021 in “Wear” Hair's resistance to wear varies by ethnicity and treatment, with less wear indicating stronger hair.
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.