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.
10 citations
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July 2022 in “The journal of investigative dermatology/Journal of investigative dermatology” Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.
59 citations
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August 1981 in “PubMed” Trichilemmal keratinization is a unique process in hair follicles where the outer root sheath turns into keratin without a specific layer.
61 citations
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February 1982 in “Cell and Tissue Research” 2 citations
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December 2013 in “The Journal of Dermatology”
January 1995 in “Skin Cancer” The outer root sheath in hair follicles changes during growth, with different keratinization processes in its layers.
January 2017 in “대한미용학회지” The cuticle layer in hair follicles thickens during keratinization due to incomplete cytosol loss.
11 citations
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January 1977 in “Archives of dermatological research” Mouse tail skin has different keratinization near hair follicles and scales.
5 citations
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July 1999 in “Journal of Anatomy” Methylene blue staining effectively highlights detailed nerve structures in rat fur.
17 citations
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May 1969 in “American Journal of Physical Anthropology” The silver marmoset's skin is thin, lacks pigment cells, and has unique features like keratinized spines and specialized glands.
110 citations
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August 2004 in “British Journal of Dermatology” The ventral matrix is the main source of the nail plate.
8 citations
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February 1968 in “Australian Journal of Zoology” The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
27 citations
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July 1993 in “The journal of investigative dermatology/Journal of investigative dermatology” Onychomatricoma is a unique nail tumor, not related to other hair-related tumors.
44 citations
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August 1990 in “PubMed” Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
5 citations
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July 1999 in “Journal of Anatomy” Methylene blue staining effectively reveals detailed nerve structures in rat snouts.
15 citations
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December 1972 in “Journal of Investigative Dermatology” 23 citations
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December 1977 in “Virchows Archiv B Cell Pathology” 6 citations
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October 2009 in “Veterinary Dermatology” Canine claws have complex structures with different keratin types, similar to hair and nails.
356 citations
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December 1986 in “The journal of cell biology/The Journal of cell biology” Hair and nail cells share similar proteins, indicating a common differentiation pathway.
5 citations
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December 2017 in “The Journal of Dermatology” A new gene mutation caused a man's rare skin condition, Schöpf-Schulz-Passarge syndrome.
3 citations
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January 2023 in “Journal of Hard Tissue Biology” Wnt10a may help regenerate dental pulp and form dentine.
15 citations
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July 2004 in “Journal of morphology” Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
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.
1 citations
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November 2025 in “Journal of Korean Medical Association” Recognizing nail changes helps diagnose and treat non-infectious skin diseases.
January 2025 in “bioRxiv (Cold Spring Harbor Laboratory)” Rhamnose may help hair growth and pigmentation, making it a potential treatment for hair loss.
May 2015 in “Journal of The American Academy of Dermatology” The treatments for fungal nail infection, hair loss in men, benign nail tumor, and chemotherapy-associated nail bed inflammation are effective and safe.
May 2015 in “Journal of The American Academy of Dermatology” Povidone-iodine nail solution effectively treats nail infections caused by chemotherapy.
May 2015 in “Journal of The American Academy of Dermatology” Laser treatment is safe and can effectively treat toenail fungus, especially when combined with other treatments if no improvement is seen after about a year.
20 citations
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December 2010 in “Journal of Morphology” Lizard claws have hair-like keratins similar to those in mammals.