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December 2022 in “bioRxiv (Cold Spring Harbor Laboratory)” Pangolins have lost some skin-related genes, but kept others, showing complex skin evolution.
15 citations
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December 2020 in “International journal of molecular sciences” Epidermal stem cells create and maintain skin structures like hair and nails through specific signaling pathways and vary by location and function.
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June 2015 in “Connective tissue research” The research found changes in gene expression related to cell death in mouse skin that help understand hair follicle development and skin health.
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June 2002 in “Journal of Investigative Dermatology” CD44 variant changes start alopecia areata, but don't maintain it.
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December 2018 in “Journal of Experimental Zoology Part B Molecular and Developmental Evolution” Corneous beta-proteins evolved uniquely in reptiles and birds, forming scales, claws, beaks, and feathers.
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210 citations
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February 2008 in “Nature genetics” Mutations in the P2RY5 gene cause autosomal recessive woolly hair.
October 2005 in “Nature reviews. Molecular cell biology (Print)” Hairless protein is key for hair growth, cell differences cause gene expression variation, and the N-end rule pathway senses nitric oxide for protein breakdown.
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October 2013 in “Experimental Dermatology” The commentary explains that a balance of HR protein and putrescine is important for normal hair growth.
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January 2002 in “Development” Overexpression of ΔNLef1 in mouse skin leads to hair loss, cysts, and skin tumors.
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March 2001 in “Clinics in dermatology” Human hair is complex and grows in cycles starting from embryonic life.
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January 2014 in “Annals of Dermatology” Sfrp2 increases during hair follicle catagen phase and slows keratinocyte growth.
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December 2014 in “PLoS ONE” A mutation in the iRhom2 gene causes hairless mice due to abnormal hair follicle development.
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November 2011 in “Veterinary pathology” The study found that mouse sweat glands develop before birth, mature after birth, and have specific keratin patterns.
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January 2011 in “International journal of trichology” Accurate diagnosis of APL is crucial to avoid unnecessary treatments.
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January 2014 in “Annals of Dermatology” Dermoscopic examination helps diagnose different types of hair loss conditions by showing specific patterns.
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July 2019 in “Case reports in dermatology” A Thai boy was diagnosed with a rare hair disorder causing hair thinning and shedding.
January 2019 in “Durham e-Theses (Durham University)” Less stiff collagen promotes higher cell growth in hair follicles.
47 citations
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July 1997 in “British Journal of Dermatology” The inner root sheath is crucial for hair follicle stability during the transition from growth to involution.
January 2002 in “Proceedings of The Japanese Society of Animal Models for Human Diseases” Keratin2-6g is crucial for hair follicle development, with mutations causing cell degeneration and vacuolation.
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June 2022 in “Experimental dermatology” The SHJH hr mice with a mutated Hr gene show signs of faster skin aging due to poor antioxidative protection.
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August 2008 in “Immunogenetics” A gene mutation in mice causes increased mast cells and disorganized hair follicles in their skin.
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October 2005 in “Annals of Clinical Psychiatry” Hairpulling, skin picking, and nail biting cause significant harm and need more research for better treatments.
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December 2000 in “PubMed” The biology of skin and hair is complex and not fully understood.
March 1998 in “Journal of Dermatological Science” Eccrine gland activity may be linked to alopecia areata.
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May 2016 in “International journal of biological macromolecules” Keratin's mechanical properties are influenced by hydrogen bonds and secondary structure, and can be improved with the SPD-2 peptide.
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September 1958 in “Acta pathologica et microbiologica Scandinavica” Certain treatments can speed up local hair growth in mice but don't change the overall hair growth pattern.