October 2018 in “InTech eBooks” This research suggests that mouse mutants and genomics can help study hair biology and epithelial differentiation by focusing on the role of the Foxn1 gene.
January 2012 in “Journal of Investigative Dermatology” The document presented various studies on hair and cutaneous development, revealing insights into hair biology and potential therapeutic targets for hair-related conditions. Key findings included the role of stem cells and their niches in hair regeneration, the impact of TACE/ADAM17 depletion on alopecia, and the expression of somatostatin in hair follicles. Research on genetic factors, such as CYLD mutants and P-cadherin, highlighted their importance in hair growth and pigmentation. Studies on hair aging identified genes involved in hair loss in women over 40. Additionally, the potential of keratinocyte precursors from iPS cells for hair follicle regeneration and the effectiveness of a parathyroid hormone analog in reversing chemotherapy-induced alopecia were explored. The document also discussed the role of cholesterol biosynthesis in cicatricial alopecia, the necessity of Wnt signaling for hair follicle initiation, and the effects of ATP-sensitive potassium channel blockers on hair growth. These findings collectively advanced the understanding of hair growth, alopecia treatment, and skin regeneration.
450 citations
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January 2005 in “The journal of investigative dermatology/Journal of investigative dermatology” This article reviews follicular melanogenesis, detailing how melanin synthesis and its regulation in hair follicles depend on a complex interplay of cellular and molecular mechanisms, but reports no new clinical findings.
March 2021 in “bioRxiv (Cold Spring Harbor Laboratory)” This study found that the absence of Hif-p4h-2 in specific mouse skin cells disrupted hair follicle development, leading to hair loss due to irregular keratin formation and pathway signaling.
Hair can't be as strong as Rapunzel's because it's impractical to scale up due to defects.
4 citations
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September 2020 in “Cell division” In this study, XMU-MP-1 unexpectedly reduced cell proliferation and altered cell cycle progression in a model human hair follicle, possibly due to off-target kinase inhibition.
2 citations
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January 2000 in “Journal of Toxicologic Pathology” This study identified a single autosomal recessive gene responsible for hypotrichosis in a mutant rabbit strain, affecting hair growth and causing epidermal and hair follicle abnormalities.
349 citations
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January 2005 in “The FASEB journal” This review discusses the cutaneous serotoninergic/melatoninergic system's potential role in skin function and resilience against environmental and internal stresses, but does not report new experimental findings.
165 citations
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September 2003 in “Toxicology and applied pharmacology” This review discusses the pharmacology and toxicology of cyclooxygenase in skin, highlighting its role in inflammation, wound healing, and tumorigenesis, without presenting new clinical results.
158 citations
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August 2011 in “Reviews in endocrine and metabolic disorders” This review examines the functions of vitamin D and its receptor in skin and explores how these are regulated, reporting no new clinical results.
130 citations
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December 1998 in “The journal of investigative dermatology/Journal of investigative dermatology” In this study, different types of catagen in the C57BL/6 mouse model exhibited varying effects on hair follicle melanocytes and melanin distribution, with spontaneous and dexamethasone-induced catagen showing pigment incontinence, while cyclophosphamide-induced catagen retained dendritic melanocytes but increased ectopic melanin.
99 citations
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September 2007 in “The American journal of pathology” This study found that organ-cultured human scalp hair follicles can mimic chemotherapy-induced damage in vivo and serve as a model to explore molecular targets and protective agents for hair follicle preservation.
92 citations
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December 2005 in “The Journal of clinical investigation/The journal of clinical investigation” This study reports that human hair follicle stem cells express different surface markers than mouse stem cells, facilitating their isolation and potentially aiding in the development of cell-based skin treatments.
90 citations
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August 2004 in “Physiological Genomics” This study found that coculturing human hair follicle keratinocyte stem cells with dermal papilla cells increased expression of the hair-specific keratin 6hf gene, which requires β-catenin/lef-1 signaling for hair differentiation.
73 citations
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May 2009 in “Proceedings of the National Academy of Sciences” This study found that disrupting the Sox21 gene in mice led to progressive hair loss and regrowth, identifying Sox21 as a key regulator of hair shaft cuticle differentiation.
68 citations
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June 2005 in “Expert Opinion on Therapeutic Targets” This review discusses the influence of oestrogens on various skin components and highlights their modulatory roles and receptor pathways, but it reports no new clinical results.
49 citations
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August 1999 in “Journal of Investigative Dermatology” In this study, transgenic mice expressing Msx-2 developed flaky skin with hyperproliferation and misalignment in epidermal cells, suggesting Msx-2 plays a role in skin and appendage growth control.
46 citations
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May 2012 in “Molecular and Cellular Endocrinology” In this study, higher expression levels of aromatase and steroidogenic acute regulatory protein were correlated with increased estrogen synthesis and fewer hair follicles in human skin, suggesting a link to elastic fiber formation and hair growth.
36 citations
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September 2013 in “PLoS ONE” This study found that sweat gland stem cells primarily maintain sweat gland homeostasis but can trans-differentiate to aid in epidermal healing and regenerate diverse skin structures under certain conditions.
33 citations
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September 2017 in “Journal of clinical immunology” This review summarizes recent findings on FOXN1's essential role in thymus and skin biology and discusses emerging therapeutic approaches for immune disorders with athymia, but reports no new clinical results.
28 citations
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June 1991 in “Veterinary Dermatology” This study observed that black-haired areas in female Saluki puppies developed hypotrichosis, with dilated hair follicles containing melanin clumps, while white-haired areas remained normal.
22 citations
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April 2020 in “Scientific reports” This study explored gene expression in Changthangi goats and found that higher expression of keratin-related genes and specific signaling pathways may play a role in the development of Pashmina fiber.
22 citations
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September 2001 in “Journal of Investigative Dermatology” S100A8 and S100A9 proteins help form hair shafts during growth.
12 citations
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September 2018 in “Naturwissenschaften” This study found that melatonin at 0.2 g/L for 72 hours most effectively enhances cashmere growth in Liaoning cashmere goats by upregulating the lncRNA MTC, which activates NF-kB signaling.
12 citations
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June 2011 in “Journal of applied polymer science” This study found that hydrophobic amino acids from egg white hydrolyzed protein and L-phenylalanine effectively penetrate deep into the human hair fiber, increasing specific contents in both virgin and bleached hair.
6 citations
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January 2021 in “Journal of the mechanics and physics of solids/Journal of the Mechanics and Physics of Solids” This study's simulations suggest that biomechanical factors, like follicle geometry and tissue stiffness, are likely significant in hair fiber protrusion, providing a framework for future experimental validation.
4 citations
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July 2020 in “Journal of proteomics” This study found no significant proteomic differences in hair samples across racial or geometric groups in a culturally diverse South African cohort, highlighting the limited value of racial classification in precision medicine.
4 citations
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January 2013 in “International Journal of Trichology” This study found that the distribution of desmogleins is associated with specific types of keratinization and hair anchorage, as well as hypotrichosis.
1 citations
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January 2020 This study found that Ift20 is essential for hair follicle stem cell identity and hair regrowth, and it regulates keratinocyte migration during wound healing through focal adhesion integrin recycling, independently of ciliogenesis.
May 2026 in “Scientific Reports” In this study, researchers overexpressed Lrig3 in mouse skin and observed hair loss linked to changes in skin protein profiles and signaling pathways, suggesting a potential role for Lrig3 in maintaining skin homeostasis.