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July 2022 in “Frontiers in Medicine” The cause of Frontal fibrosing alopecia, a type of hair loss, is complex, likely involving immune responses and genetics, but is not fully understood.
1 citations
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December 2023 Hair grows in cycles and changes with age, starting from fetal development.
1 citations
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April 2023 in “Biomaterials advances” Gellan gum hydrogels help recreate the environment needed for hair growth cell function.
February 2026 in “International Journal of Molecular Sciences” 3D human skin models show promise for dermatology but face challenges in standardization and cost.
December 2025 in “Advanced Healthcare Materials” The Spherical Skin Model improves drug and cosmetic testing by accurately mimicking human skin for efficient compound screening.
August 2025 in “Current Issues in Molecular Biology” Key pathways like WNT, EGF, FGF, SHH, and BMP regulate poultry feather growth, with BMP inhibiting it.
August 2024 in “Applied Sciences” Plant extracts may help prevent or reverse hair graying.
January 2023 in “Biomaterials Science” Certain genes are more active during wound healing in axolotl and Acomys, which could help develop materials that improve human wound healing and regeneration.
5 citations
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February 1998 in “Polymer” Human hair keratin has a 40% α-helix structure that changes to a random coil in 8 M urea.
January 1991 in “Acta Dermato Venereologica” A new method effectively visualizes keratin in hair without harsh chemicals.
39 citations
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December 1998 in “Journal of Cell Science” The LEF-1 binding site enhances gene expression in hair follicles, with other proteins aiding specific regulation.
22 citations
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January 2006 in “Journal of Structural Biology” Hair follicles form hard α-keratin filaments in four steps, showing structural differences.
13 citations
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November 2007 in “Journal of Structural Biology” Keratin heterodimers are preferred for their specific and structural advantages.
48 citations
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January 2002 in “Journal of Structural Biology” Trichocyte filaments have a low-density core and may include proteins for hair structure.
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November 2012 in “Proceedings of the Royal Society B Biological Sciences” Hard α-keratins stay stiff in water because the surrounding matrix keeps them dehydrated and strong.
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January 1993 in “DNA sequence” KRT2.13 gene is similar to KRT2.9 but not expressed in hair follicles.
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March 2009 in “Differentiation” Gene expression in wool follicles changes with growth cycles, offering insights into wool and human hair growth.
83 citations
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May 2011 in “Experimental Dermatology” Sheep have 17 keratin genes, similar to humans, but with different expression patterns affecting wool and hair.
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November 1998 in “Experimental Cell Research” K15 gene is mainly active in the basal layers of hair follicles and epithelia, aiding early skin cell development.
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February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
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April 2003 in “Journal of Structural Biology” Keratin structure changes during keratinization, but the exact model remains uncertain.
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January 2011 in “Biochemistry Research International” Hard α-keratin has a universal molecular structure with a specific superlattice arrangement.
Giant axonal neuropathy changes the structure of keratin in human hair, making it stiffer and stronger.
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September 2018 in “Journal of Structural Biology” Oxidized trichocyte keratin has a helical dislocation in its structure.
65 citations
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February 1992 in “Development” Type II keratin genes are crucial for hair follicle differentiation and have a conserved structure and expression pattern.
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April 2002 in “Cell Death and Differentiation” 41 citations
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January 2001 in “Journal of Investigative Dermatology” 40 citations
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February 1994 in “Journal of Investigative Dermatology” 33 citations
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October 2012 in “Journal of Morphology” Reptile skin hardens by layering beta-proteins on keratin.