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January 2002 in “Zhiwu Yanjiu” Capitate trichomes have more endoplasmic reticulum and vacuoles, while peltate trichomes have more plastids and larger subcuticular spaces.
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December 2004 in “Developmental biology” cDermo-1 causes dense skin, feathers, and scales in chickens.
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September 2000 in “Journal of Investigative Dermatology” μ-Crystallin may help hair growth by affecting thyroid hormone levels in mouse hair follicles.
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January 2006 in “International review of cytology” Vertebrate skin evolved to be more specialized and complex, especially in land animals.
July 2025 in “Journal of Investigative Dermatology” Secreted inhibitors of Wnt and IGF signaling control hair and tooth development, creating species-specific patterns.
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August 2024 in “Transgenic Research” Activated β-catenin affects hair growth and skin thickness, and changes are reversible.
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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.
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July 2019 in “Folia Morphologica” Brandt's hedgehog has thick skin on its back and many glands near its nostrils.
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