January 2007 in “The FASEB journal” Human hair keratins help nerve regeneration and support Schwann cell activity.
14 citations
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April 1995 in “Transplantation” Human hair follicle cells can be used to help heal and replace skin.
33 citations
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October 2012 in “Journal of Morphology” Reptile skin hardens by layering beta-proteins on keratin.
62 citations
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June 1993 in “Archives of Dermatological Research” 38 citations
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October 2001 in “British Journal of Dermatology” Keratin K6irs is a marker for the inner root sheath of hair follicles in mice and humans.
19 citations
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
8 citations
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October 2010 in “Advances in plant biology” 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.
4 citations
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November 1968 in “Textile research journal” Hair fibers may have a unique, non-protein sheath not previously identified.
6 citations
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December 1990 in “PubMed” Keratinocytes in hair follicles differentiate similarly to skin cells, with specific patterns in different regions.
2 citations
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January 1989 Researchers developed a method to grow skin-like tissue from hair cells.
22 citations
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January 1990 April 2009 in “The FASEB Journal” Keratin biomaterials from human hair help nerve regeneration by activating Schwann cells.
27 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” 90 citations
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July 1993 in “Journal of Investigative Dermatology” 12 citations
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July 2019 in “Veterinary Dermatology” Nestin-expressing progenitor cells become outer root sheath keratinocytes.
17 citations
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January 2013 in “Journal of Cutaneous Pathology” The onychodermis helps anchor the nail bed and may aid in nail formation.
31 citations
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September 1996 in “Differentiation” The upper dermal sheath can regenerate hair in rats.
44 citations
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October 1990 in “Archives of Dermatological Research” The connective tissue around hair follicles changes structure throughout the hair cycle.
9 citations
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February 2016 in “Anatomical Science International” Hair proteins change location and structure as hair cells mature.
34 citations
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August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
4 citations
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January 1981 in “PubMed” Hair medullary cells in mammals vary in complexity, with humans having more structured cells similar to inner root sheath cells.
7 citations
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January 2017 in “Sub-cellular biochemistry/Subcellular biochemistry”
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
5 citations
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July 1999 in “Journal of Anatomy” Methylene blue staining effectively highlights detailed nerve structures in rat fur.
August 1993 in “Journal of Dermatological Science” 3 citations
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July 1990 in “PubMed” Human hair follicles can grow and form structures in a collagen gel, useful for studying hair cell growth.
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.
18 citations
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June 1993 in “Archives of Dermatological Research” Human hair follicles can be used to create skin-like tissue for wound healing and drug testing.
6 citations
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December 2018 in “International Journal of Cosmetic Science” CARB is a strong barrier in human hair that prevents dye penetration.