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    Glossary Type I Keratin

    Type I keratin is a fibrous protein that is a key structural component of hair, skin, and nails. It is classified as an acidic keratin and is primarily found in the hard tissues of the body, contributing to the strength and resilience of hair strands. In the context of hair loss, understanding type I keratin is relevant as it plays a crucial role in hair follicle health and integrity; any disruption in its production or structure can lead to weakened hair and increased susceptibility to hair loss. Distinguishing characteristics of type I keratin include its high tensile strength and its ability to form complex structures with other keratins, particularly type II keratins, to create the overall architecture of hair.

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    Research 10 of 1000+

    1. A missense mutation in the type II hair keratin hHb3 is associated with monilethrix Journal of Medical Genetics · 2005 · 79 citations
    2. Characterization of a 300 kbp Region of Human DNA Containing the Type II Hair Keratin Gene Domain Journal of Investigative Dermatology · 2000 · 77 citations
    3. Characterization of a 190-Kilobase Pair Domain of Human Type I Hair Keratin Genes 1998 · 74 citations
    4. Novel Type I Hair Keratins K39 and K40 Are the Last to be Expressed in Differentiation of the Hair: Completion of the Human Hair Keratin Catalog Journal of Investigative Dermatology · 2007 · 70 citations
    5. Sequences and differential expression of three novel human type-II hair keratins Differentiation · 1997 · 61 citations
    6. A mutation in the hair matrix and cuticle keratin KRTHB5 gene causes ectodermal dysplasia of hair and nail type Journal of Medical Genetics · 2006 · 60 citations
    7. Type II Epithelial Keratin 6hf (K6hf) Is Expressed in the Companion Layer, Matrix, and Medulla in Anagen-Stage Hair Follicles Journal of Investigative Dermatology · 2003 · 60 citations
    8. Androgen Regulation of the Human Hair Follicle: The Type I Hair Keratin hHa7 Is a Direct Target Gene in Trichocytes Journal of Investigative Dermatology · 2004 · 49 citations
    9. A Variable Monilethrix Phenotype Associated With a Novel Mutation, Glu402Lys, in the Helix Termination Motif of the Type II Hair Keratin hHb1 Journal of Investigative Dermatology · 1998 · 47 citations
    10. Sequence and Expression of Murine Type I Hair Keratins mHa2 and mHa3 Experimental Cell Research · 1994 · 47 citations
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    Community 10 of 84

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    8. New Peer-Reviewed Publication Further Validates RepliCel's Use of Dermal Sheath Cup Cells to Treat Pattern Baldness - Paper entitled "Hair Follicle Dermal Stem Cells Regenerate the Dermal Sheath, Repopulate the Dermal Papilla, and Modulate Hair Type" published journal Developmental Cell Reddit · 24 Dec 2014
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    10. Why did this recent research paper from professor Tsuji lab in Japan largely go unnoticed by this sub? Isn't this discovery huge? (hair cloning) Reddit · 11 May 2026
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    1. GHK-Cu Copper peptide used in skin and hair cosmetics
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