The "sinuskissen" in cat hair follicles is mostly connective tissue, affecting fluid flow.
6 citations
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June 1976 in “Journal of ultrastructure research” Keratinized wool cells still have some organelles like lysosomes and mitochondria.
7 citations
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January 2011 in “Biochemistry Research International” Hard α-keratin has a universal molecular structure with a specific superlattice arrangement.
2 citations
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September 2022 in “Frontiers in genetics” Different proteins are linked to the varying thickness of sheep and goat hair types.
18 citations
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August 2015 in “International Journal of Molecular Sciences” Ovine hair follicle stem cells can regenerate haired skin and may improve wool production.
65 citations
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May 2006 in “Journal of Structural Biology” Hair curliness is due to uneven distribution of different cortices within the hair fiber.
January 2014 in “Sen'i Gakkaishi” Researchers developed a method to identify animal fibers in textiles, which works on processed and blended materials.
January 2019 in “Durham e-Theses (Durham University)” Less stiff collagen promotes higher cell growth in hair follicles.
63 citations
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February 2010 in “Journal of Neurophysiology” Microstimulation of certain facial and mouth nerves can evoke specific sensations, while deeper nerves may require multiple stimulations to affect perception.
12 citations
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January 1994 in “PubMed” Elastic fiber arrangement in mammal skin varies by hair density and body region.
139 citations
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” K6hf is a unique protein found only in a specific layer of hair follicles.
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.
June 2021 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” 1235 citations
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December 2013 in “Nature” Two fibroblast types shape skin structure and repair differently.
1 citations
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January 2020 in “Veterinariya Zootekhniya i Biotekhnologiya” Long-haired cats have thinner skin where hair is thicker, and all have unique collagen patterns.
4 citations
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March 2016 in “Small ruminant research” Vicuña wool's quality is due to a high density of fine secondary hair follicles, and their skin glands may be used for communication.
46 citations
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August 1977 in “Journal of Morphology” The big-clawed shrew's sinus hair follicles are highly specialized for sensing vibrations.
Hair feels different when touched and rubs together in various ways.
Wavy sinus hairs in cats are linked to feline leukemia virus infection.
January 2006 in “Durham e-Theses (Durham University)” Id proteins, especially Id2 and Id3, are crucial for hair follicle development and stem cell regulation.
4 citations
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June 2022 in “Cold Spring Harbor Perspectives in Biology” Different types of fibroblasts exist in skin and understanding them can help improve wound healing and treat scars.
January 1992 in “Proceedings of the New Zealand Society of Animal Production” Ferret hair growth starts between 0 and 4 days after melatonin treatment, with cell growth peaking in the hair germ and declining as the hair matures.
4 citations
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January 2005 in “Indian Journal of Animal Research” Goat neck skin has a complex network of collagen, elastic, and reticular fibers.
47 citations
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August 2012 in “Cell Cycle” Stem cells in hair follicles can become neurons and other cells, especially in the upper part, useful for nerve repair.
1 citations
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January 2014 in “Sen'i Gakkaishi” The new method reliably identifies and measures different animal hair fibers in textiles.
27 citations
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November 1991 in “Journal of Investigative Dermatology” January 1980 in “中国科学A辑(英文版)” The protein structures in the hair and tendon were preserved, but their molecular arrangements changed.
9 citations
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April 2019 in “Journal of Structural Biology” Keratin fibers in hair twist left-handed.
6 citations
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February 2021 in “Proteins” Researchers found that the most reachable bonds in wool fibers are near the ends of certain proteins, which help stabilize the fiber's structure.
2 citations
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February 2021 in “FEBS open bio” Human hair keratins K85 and K35 create unique filament patterns important for early hair formation.