January 2013 in “China Animal Husbandry & Veterinary Medicine” The best method to isolate and culture hair follicle stem cells in fine-wool sheep is a combination of two-step enzymatic digestion and mechanical separation.
September 1978 in “PubMed” Chondroitin sulphate is more abundant than hyaluronic acid in skin and hair samples, except in gamma-keratosis.
83 citations
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May 2011 in “Experimental Dermatology” Sheep have 17 keratin genes, similar to humans, but with different expression patterns affecting wool and hair.
76 citations
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February 1993 in “Journal of Biological Chemistry” KAP6 genes are conserved across species and active in hair follicles.
72 citations
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September 1975 in “Biology of Reproduction” Most zinc in rat sperm is in the tail, linked to structures similar to hair keratin.
25 citations
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November 2012 in “Thermochimica Acta” Internal lipids in keratin fibers, like wool and hair, reduce water absorption and release.
20 citations
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January 1995 in “Cells tissues organs” Changing light periods synchronized wool growth cycles in sheep.
16 citations
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January 2015 in “Genetics and Molecular Research” The research helps improve wool quality and aids human hair research.
11 citations
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October 2014 in “Gene” Researchers identified a new variant of the FGF5 gene in sheep that affects hair length.
7 citations
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August 2009 in “Applied Mathematics and Mechanics-English Edition” Hair fibers have fractal patterns with properties related to the golden mean, which may affect their functionality.
6 citations
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December 1966 in “Textile Research Journal” Animal hair fibers like wool and mohair are strong when dry, but vicuna fibers are very brittle.
6 citations
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October 2018 in “Endocrinology” Prenatally androgenized ewes can model increased hair diameter in women with PCOS.
4 citations
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September 2003 in “Livestock Production Science” Epidermal growth factor reduces hair growth, but cortisol does not.
1 citations
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April 2021 in “IntechOpen eBooks” The PCR technique can identify genetic differences in a wool-related gene among different sheep breeds, which may help improve wool and pelt quality.
Acidic sandy clay damages archaeological hair the most, while dry conditions preserve but make it brittle; silicone oil can help keep the hair flexible.
IRS-specific genes in Tan sheep hair follicles peak at birth and may affect wool crimp.
Different androgen concentrations affect wool-related gene expression differently in Hetian and Karakul sheep breeds.
June 2023 in “Historical records of Australian science/Historical Records of Australian Science” George Ernest Rogers was a notable scientist who made important discoveries about hair and wool proteins.
January 2023 in “Journal of applied animal research” Short photoperiods improve cashmere growth and quality in goats by changing hormone levels and gene expression.
March 2021 in “World rabbit science” Adding 0.2% taurine to Angora rabbits' diet improves wool production and overall health.
August 2019 in “Research Square (Research Square)” Red LED light improves the quality of Angora rabbit wool by promoting hair growth.
Sheep can lose wool quickly due to stress, but it doesn't cause itching or pain.
25 citations
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September 2014 in “SpringerPlus” Sheep have a unique gene, KAP8-2, that humans don't have, which may affect wool properties.
25 citations
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October 1962 in “Journal of Ultrastructure Research” The hair follicle structure is more complex than thought, with new findings on protein formation.
24 citations
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June 2003 in “Journal of Structural Biology” Sheet formation is key to macrofibril structure differences in wool.
19 citations
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June 2020 in “Animals” Poor maternal nutrition can lead to fewer wool follicles in Chinese Merino sheep.
2 citations
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July 2012 in “PubMed” Ceramide-rich liposomes can effectively repair and strengthen damaged hair.
1 citations
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September 2020 in “Leonardo” The exhibition made people think about ethics and society in relation to biotech advances.
May 2025 in “Apollo Medicine” Trichoscopy is a useful tool for diagnosing and assessing the severity of alopecia areata.
October 2023 in “Journal of Molecular Liquids” A new method using imidazole-based liquids efficiently extracts keratin from yak hair.