29 citations
,
July 2003 in “Experimental Dermatology” The upper hair follicle is stable, while the lower part allows movement during hair growth.
198 citations
,
November 1989 in “The Journal of Cell Biology” Keratin K14 expression varies between hair follicles and epidermis, affecting cell differentiation.
6 citations
,
December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
10 citations
,
November 2016 in “International Journal of Cosmetic Science” A tough membrane between the outer and inner layers of human hair protects it from damage.
June 2022 in “Research Square (Research Square)” Nestin-expressing cells turn into a specific type of skin cell in hair follicles during development and in adults.
January 2007 in “Sen'i Gakkaishi” Mf-rich hair degrades more than Ma-rich hair, especially with Proteinase K.
21 citations
,
June 2002 in “International Journal of Cosmetic Science” Advancements in hair keratin research could lead to better hair health treatments.
3 citations
,
December 2018 in “Routledge eBooks” Hair is made of strong keratin fibers that protect against the environment.
4 citations
,
January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
39 citations
,
June 2012 in “Journal of Structural Biology” Disulfide bonds are crucial for hair structure during keratinization.
30 citations
,
April 2009 in “Mycoses” Microsporum gypseum fungus breaks down keratin in hair by digesting it enzymatically, starting with less keratinized parts.
January 1963 in “Stain technology” Ziehl-Neelsen's stain helps identify different parts of hair in sheep and goats.
1 citations
,
October 2017 in “ecancermedicalscience” Breast cancer alters specific molecular structures in hair, which revert after cancer removal.
August 1989 in “Proceedings ... annual meeting, Electron Microscopy Society of America/Proceedings, annual meeting, Electron Microscopy Society of America” The research provided a detailed view of the non-keratinous parts of human hair fibers.
65 citations
,
February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
30 citations
,
January 1999 in “Journal of Cutaneous Pathology” Spiny keratoderma may be ectopic hair formation on palms and soles.
36 citations
,
February 1998 in “Journal of Anatomy” Fibre optic confocal imaging can visualize skin layers, blood vessels, and nerves in live mice.
161 citations
,
June 1993 in “Journal of Biological Chemistry” Trichohyalin helps in hair and skin cell structure and function by binding calcium and linking proteins.
Trichohyalin, a protein from pig tongue, was purified and found to have a filamentous structure.
18 citations
,
February 1992 in “Molecular Biology Reports” A specific type II hair keratin was identified and found in hair cortex and tongue cells.
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.
143 citations
,
January 2012 in “Cell and Tissue Research” January 2026 in “Digitalen Hochschulbibliothek Sachsen-Anhalt (Universitäts- und Landesbibliothek Sachsen-Anhalt)” Keratin from chicken feathers can be safely used for skin benefits.
116 citations
,
April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
February 2026 in “International Journal of Biological Macromolecules” Keratin from waste hair and feathers can be sustainably used to create stable emulsions for industrial applications.
78 citations
,
May 2012 in “Journal of Investigative Dermatology” A specific gene mutation causes woolly hair and hair loss.
Human hair keratins can self-assemble and support cell growth, useful for biomedical applications.
5 citations
,
December 1996 in “Biochemical and Biophysical Research Communications” Mouse hair keratins mHa1 and mHb4 can't form a strong network on their own in cells.
May 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” A mutation in the KRT74 gene causes woolly hair by affecting hair texture.