27 citations
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February 1991 Cuticle damage doesn't affect hair's tensile strength; the cortex is responsible for it.
April 2017 in “Journal of Investigative Dermatology” Early and late matrix progenitors in hair follicles create different cell layers, with early ones forming the companion layer and later ones forming the inner root sheath and hair shaft.
22 citations
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December 2016 in “PloS one” A specific protein in chicken embryos links early skin layers to feather development.
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July 1964 in “PubMed” Hair follicle cells become four types: medulla, cortex, cuticle, and inner root sheath.
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June 2014 in “The Journal of Dermatology” Elkonyxis, a rare nail condition, improved when patients stopped their nail-picking habits.
116 citations
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April 1986 in “The journal of cell biology/The Journal of cell biology” Trichohyalin is a protein in hair follicles that helps form hair filaments.
5 citations
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July 2009 in “Clinical and experimental dermatology”
Sensory neuron changes and Merkel-cell changes in the skin happen independently during normal skin maintenance.
35 citations
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January 2000 in “Journal of comparative neurology” Rat vibrissae have sensory terminals with specific structures that help detect hair movements.
Fungal infections like ringworm affect skin, hair, and nails in humans and animals, requiring culture for diagnosis and specific treatments.
41 citations
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July 1994 in “Journal of Dermatological Science” Hair follicle cells need complex interactions to fully differentiate.
10 citations
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April 2017 in “PLoS ONE” White rhinoceroses have a unique skin structure with thick epidermis and no hair or oil glands.
15 citations
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September 2009 in “European Journal of Histochemistry” CD90 is abundantly present on stem-like cells in dog hair follicles.
5 citations
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February 2015 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology” OCT can non-invasively diagnose follicular keratosis and other hair follicle disorders.
September 2019 in “The journal of investigative dermatology/Journal of investigative dermatology” Mouse skin glands need healthy nerves to grow properly during hair growth phases.
16 citations
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November 2005 in “Journal of Clinical Pathology” CD1d expression in scalp skin and hair follicles changes with the hair cycle and may help protect against microbes.
1 citations
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January 1989 in “Springer eBooks” 2 citations
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October 1931 in “Archives of Dermatology and Syphilology” A rare scalp infection in a child developed into a kerion with additional skin symptoms.
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January 1988 19 citations
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April 1999 in “British Journal of Dermatology” Keratin 2e shows a unique pattern in developing fetal skin, different from other keratins.
42 citations
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September 1985 in “British Journal of Dermatology” Trichothiodystrophy causes abnormal protein deposits and distortion in hair follicles.
August 2021 in “Indian dermatology online journal” A young boy with a rare skin and nail condition improved significantly with simple topical treatments.
January 2000 in “Neuroscience Research” April 2025 in “Indian Dermatology Online Journal” Bird-related analogies help explain and remember skin conditions better.
12 citations
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January 2013 in “Indian dermatology online journal” The document reports a unique case of woolly hair with a combination of conditions not previously seen together.
28 citations
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October 2004 in “Differentiation” A gene deletion causes the "hairless" trait in Iffa Credo rats.
17 citations
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February 1987 in “Journal of the American Academy of Dermatology” The hair cuticle acts as a barrier against fungal infection, which occurs only deep within the hair follicle.
40 citations
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March 2017 in “The journal of investigative dermatology/Journal of investigative dermatology” Growing hair follicles have high mitochondrial activity and ROS in specific regions, aiding hair formation.
130 citations
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April 2003 in “Journal of Investigative Dermatology” Four specific keratins in hair follicles help understand hair structure and function.
81 citations
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May 1986 in “Journal of Investigative Dermatology”