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    Glossary Nails

    hard keratin structures protecting finger and toe tips

    Nails are hard, protective coverings made of keratin that grow at the tips of fingers and toes. They serve to protect the sensitive tips of digits and enhance the ability to pick up small objects. In a biological context, nails are considered a part of the integumentary system, which also includes skin and hair.

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    Research 10 of 1000+

    1. Patterns of expression of trichocytic and epithelial cytokeratins in mammalian tissues II. Concomitant and mutually exclusive synthesis of trichocytic and epithelial cytokeratins in diverse human and bovine tissues (hair follicle, nail bed and matrix, lingual papilla, thymic reticulum) Differentiation · 1988 · 187 citations
    2. Immunology of the Human Nail Apparatus: The Nail Matrix Is a Site of Relative Immune Privilege Journal of Investigative Dermatology · 2005 · 139 citations
    3. Psoriasis treatment in difficult locations: scalp, nails, and intertriginous areas Clinics in Dermatology · 2008 · 104 citations
    4. Discovery of a novel murine keratin 6 (K6) isoform explains the absence of hair and nail defects in mice deficient for K6a and K6b The Journal of Cell Biology · 2001 · 101 citations
    5. Videodermoscopy of the hyponychium in nail bed psoriasis Journal of the American Academy of Dermatology · 2008 · 76 citations
    6. Loss-of-Function Mutations in HOXC13 Cause Pure Hair and Nail Ectodermal Dysplasia The American Journal of Human Genetics · 2012 · 74 citations
    7. Keratin film made of human hair as a nail plate model for studying drug permeation European Journal of Pharmaceutics and Biopharmaceutics · 2011 · 68 citations
    8. The Nude Mutant Gene Foxn1 Is a HOXC13 Regulatory Target during Hair Follicle and Nail Differentiation 2010 · 68 citations
    9. Development of Clinician-Reported Outcome (ClinRO) and Patient-Reported Outcome (PRO) Measures for Eyebrow, Eyelash and Nail Assessment in Alopecia Areata American Journal of Clinical Dermatology · 2020 · 56 citations
    10. Comparative Anatomy of Mouse and Human Nail Units The Anatomical Record · 2013 · 55 citations
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    Community 10 of 14

    1. The final nail in the coffin. PP405 is confirmed JXL069. Reddit · 26 Jul 2026
    2. Current regimen: Topical finasteride 0.3% Minoxidil 6% once daily. 5 months. Also just started taking Zinc 20MG daily. Saw Palmetto 450mg daily. Hair, skin & nails supplements (includes a bunch of vitamins essential for hair skin and nails) Was debating on adding oral finasteride. Thoughts? Reddit · 10 May 2025
    3. Is there any good collagen to use for skin, nails, hair, and joints? Reddit · 22 Jul 2026
    4. Unexpected Hair Growth Reddit · 11 May 2017
    5. MSM for regrowth??? Reddit · 21 Jun 2018
    6. Tried addressing DHT and regrowth, wanting to try additional path Reddit · 20 Dec 2023
    7. What's your option on complementary treatment Reddit · 8 Jun 2024
    8. Time for some fin positivity + my experience as a early adopter AMA Reddit · 20 Mar 2024
    9. Can I grow my vellus hair on my left temple longer? I've tried wild growth, castor oil, hsn vitamins, in currently on spiro Reddit · 18 Nov 2016
    10. DHT Blocker without Selenium and Zinc?? Reddit · 25 Sept 2024
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