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August 1984 in “Genetics Research” The N gene affects the protein makeup of mouse hair.
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January 1981 in “Springer eBooks” Environmental factors like temperature and nutrition affect hair growth, with humans showing seasonal hair growth differences.
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July 1994 in “Journal of Cell Science” Cross-linked proteins help maintain the structure of hair, feathers, and hagfish teeth.
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March 2018 in “Asian-Australasian journal of animal sciences” OCIAD2 and DCN genes affect hair growth in goats by having opposite effects on a growth signaling pathway and inhibiting each other.
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January 2007 in “AIP conference proceedings” High-resolution x-ray images showed three main structures in human hair: medulla, cortex, and cuticle.
117 citations
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August 2005 in “Ultramicroscopy” Human hair's strength and flexibility vary by ethnicity, damage, and treatment.
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December 2007 in “The FASEB journal” There are two types of stem cells in rodent hair follicles, each with different keratin proteins.
296 citations
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October 2018 in “General and Comparative Endocrinology” Hair cortisol is a reliable way to measure long-term stress in animals.
1 citations
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December 2024 in “Methods in molecular biology” Hair proteins are complex and provide valuable genetic and biological information.
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August 2025 in “Journal of Investigative Dermatology” Genetic studies on hair traits can improve understanding of health and disease.
May 2026 in “Applied Spectroscopy” Humidity affects hair structure changes during stretching.
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April 2010 in “Developmental Cell” β-catenin in the dermal papilla is crucial for normal hair growth and repair.
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March 2023 in “Annals of the New York Academy of Sciences” Mutations in claudin-1 and claudin-3 cause hair loss in baby mice.
34 citations
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August 1966 in “Experimental cell research” Keratin fibrils in hair form and stop growing at specific points in the follicle.
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August 2019 in “Research Square (Research Square)” Cashmere goats have a hair growth cycle with specific genes regulating growth, regression, and resting periods.
March 2014 in “CRC Press eBooks” Human head hair can grow very long and is thicker than most body hair.
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September 2024 in “Veterinary Dermatology” Trichography is important for diagnosing hair fragility in Pomeranian dogs with hair cycle issues.
11 citations
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January 1981 in “Cells Tissues Organs” Human hair cuticle has five cell layers with specific junctions and granules.
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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April 2009 in “Agricultural sciences in China/Agricultural Sciences in China” Hoxc13 gene expression and skin thickness change similarly during cashmere goat hair follicle development.
February 2022 in “Cosmetic Dermatology” Different hair care methods affect hair health and appearance, and there are many ways to camouflage hair loss.
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January 2018 in “Advances in experimental medicine and biology” Hair and wool have diverse keratins and keratin-associated proteins.
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March 2009 in “Journal of Investigative Dermatology” Proteomic analysis can identify genetic differences in mouse hair, helping understand hair defects and variations.
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August 1980 in “Acs Symposium Series” Hair increases in size when it absorbs water, and treatments like bleaching affect how much water it can take in.
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January 2016 in “Biointerphases” The hair's outermost surface has multiple layers of lipids and proteins.
March 2010 in “Faculty Opinions – Post-Publication Peer Review of the Biomedical Literature” Beard hair medulla cells have a unique and varied keratin pattern.
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September 2022 in “Frontiers in genetics” Different proteins are linked to the varying thickness of sheep and goat hair types.
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January 2017 in “Genetica” The methylation of the HOXC8 gene's exon 1 affects cashmere fiber length in goats.
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January 2010 in “Dermatology” Some people with congenital triangular alopecia have a central tuft of hair in the bald patch, but the cause is unknown.
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January 1987 in “PubMed” Woolly hair syndrome is a genetic condition causing frizzy, fragile hair.