26 citations
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August 2007 in “Annals of Anatomy - Anatomischer Anzeiger” Feathers become harder as they develop due to a change in keratin type.
November 2022 in “Journal of Investigative Dermatology” Human-induced stem cell-created skin models can help understand skin diseases by studying the skin's layers.
30 citations
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November 1992 in “The Journal of Dermatology” Keratohyalin and trichohyalin proteins help form and organize skin and hair structures.
January 1997 in “Han-guk hyeonmigyeong hakoeji/Applied microscopy” The hair follicle's connection to connective tissue is weaker than the skin's.
45 citations
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April 2009 in “Journal of anatomy” Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
37 citations
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January 2022 in “Frontiers in Genetics” Aging reduces dermal sheath cells, affecting youthful skin appearance.
24 citations
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December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
10 citations
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January 2010 in “International journal of trichology” Keratin-associated proteins are part of the developing hair fiber cuticle.
11 citations
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June 1994 in “Journal of Investigative Dermatology” 28 citations
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September 2011 in “Stem Cell Reviews and Reports” 12 citations
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January 1991 in “Acta Dermato Venereologica” Basal cell epithelioma-like changes are most similar to normal basal cells.
38 citations
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July 2004 in “Journal of experimental zoology. Part B, Molecular and developmental evolution” Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.
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.
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.
9 citations
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September 2021 in “Stem Cell Reviews and Reports” Hair follicle stem cells from aged eyelid skin can become corneal endothelial-like cells for potential eye treatments.
28 citations
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September 2013 in “European Journal of Histochemistry” Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
1 citations
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July 2020 in “bioRxiv (Cold Spring Harbor Laboratory)” Removing centrosomes from skin cells leads to thinner skin and stops hair growth, but does not greatly affect skin cell differentiation.
21 citations
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June 2003 in “Journal of Morphology” Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
September 2023 in “Clinical anatomy” Forehead creases are formed by a tight connection between the skin and muscle through dense fibers, with changes in skin thickness and fewer skin appendages near the creases.
101 citations
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April 2013 in “Science” Feather pigment patterns form through melanocyte arrangement and simple regulatory mechanisms.
January 2018 in “Online Publication Service of Würzburg University (Würzburg University)” EpiLife® media and younger donor age improve artificial skin model quality.
August 1993 in “Journal of Dermatological Science” July 2024 in “Journal of Investigative Dermatology” Cell movements and forces shape feather growth in chicken skin.
1 citations
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December 2024 in “Tissue Barriers” The epidermis is the stiffest skin layer.
48 citations
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August 2001 in “Experimental dermatology” Researchers created a quick, cost-effective way to make skin-like tissue from hair follicles and fibroblasts.
August 2013 in “International Wound Journal” Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
36 citations
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December 2004 in “British Journal of Dermatology” The cyst had unusual keratin spherules and resembled bone marrow.
15 citations
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May 2010 in “International Journal of Cosmetic Science” The cell membrane complex in mammalian hair has three distinct types with different structures and chemical properties.
5 citations
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January 2016 in “Stem Cells International” Certain skin cells near the base of hair muscles may help renew and stabilize skin, possibly affecting skin disorder understanding.
1 citations
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July 2025 in “JCI Insight” Hair follicle stem cells help maintain skin health by moving to and supporting the skin's surface layers.