49 citations
,
April 2010 in “International Journal of Cosmetic Science” Hair ages as the cuticle wears down, especially beyond 1 meter from the root, affecting its strength and shine.
24 citations
,
December 1957 in “Experimental Cell Research” The glassy layer of hair follicles has different fibril sizes and arrangements in guinea pigs and young mice.
31 citations
,
February 2007 in “Journal of Structural Biology” Oxidation changes the structure of hair protein filaments, causing them to compact and rearrange.
January 2007 in “Durham e-Theses (Durham University)” Hair growth and shedding involve specific cell changes and gene roles.
25 citations
,
September 1995 in “Biochemistry and Cell Biology” High levels of human keratin 16 in mice cause skin lesions and abnormal skin development.
May 2026 in “The EMBO Journal” The study investigates the formation of feather follicles in avian skin using chicken and transgenic quail skin models. It reveals that novel cellular flows initiate chemo-mechanical circuits that guide the morphological transitions necessary for feather bud formation. Initially, stiff dermal condensates protrude from a softened epithelial sheet, activating YAP and causing the epithelial sheet to fold and form a cylindrical wall that invaginates into the skin. This process is crucial for forming tightly packed dermal papillae. The study contrasts this with scale development, where a rigid epithelial sheet restricts dermal cell flows, preventing further transformation. A topological transformation model was developed to describe how feather follicles evolved from scales.
August 2013 in “International Wound Journal” Non-hairy skin cells might be used to regenerate hair, helping with baldness and skin wounds.
January 2019 in “Durham e-Theses (Durham University)” Less stiff collagen promotes higher cell growth in hair follicles.
27 citations
,
November 1991 in “Journal of Investigative Dermatology” 6 citations
,
April 2005 in “Journal of dermatological science” The study found nine new hair protein genes in human hair follicles.
15 citations
,
April 2014 in “Experimental Dermatology” Scientists developed a system to study human hair growth using skin cells, which could help understand hair development and improve skin substitutes for medical use.
7 citations
,
February 1998 in “Polymer journal” Keratin structure in hair is stable at pH 5-6 but disrupts between pH 6-7.
15 citations
,
October 1999 in “British Journal of Dermatology” Collagen remodeling is more active during hair growth stages.
12 citations
,
March 2004 in “Journal of Investigative Dermatology”
October 2023 in “Materials chemistry and physics (Print)” Adding keratin to a mix of cow hair and plant-based plastic makes it stronger.
May 2002 in “Journal of Investigative Dermatology” New findings on hair keratin, wound healing, and skin blistering were presented.
3 citations
,
September 2005 in “Experimental dermatology” The cornified envelope is crucial for skin's barrier function and involves key proteins and genetic factors.
April 2018 in “Journal of Investigative Dermatology” Arrector pili muscle regulates hair follicle stem cells, DNA methylation needed for hair cycling, and Wnt/B-catenin signaling starts hair growth.
12 citations
,
July 2019 in “Veterinary Dermatology” Nestin-expressing progenitor cells become outer root sheath keratinocytes.
1 citations
,
August 2015 in “PubMed” Human hair's strength comes from a honeycomb-like structure and macrofibrils.
October 2025 in “Clinical Cosmetic and Investigational Dermatology” Targeting specific cell interactions may help treat skin fibrosis.
Hair bulb cells can create skin-like tissues for potential skin repair.
34 citations
,
December 1984 in “Journal of Cutaneous Pathology” Monilethrix hair issues are due to problems in the hair's internodes.
37 citations
,
August 2024 in “Current Issues in Molecular Biology” Keratins 6, 16, and 17 increase in damaged or diseased skin and may help diagnose skin issues.
September 2016 in “Journal of dermatological science” HAP stem cells can repair nerves and spinal cords by becoming Schwann cells.
April 2018 in “The journal of investigative dermatology/Journal of investigative dermatology” Skin heals with scars because only one type of fibroblast is used, not a mix.
149 citations
,
July 2000 in “Molecular and Cellular Biology” Keratin 6a is important for quick wound healing from hair follicles.
8 citations
,
March 2009 in “Differentiation” Adult vibrissa follicle stem cells can regenerate hair follicles, glands, and skin.
5 citations
,
August 2011 in “Biotechnology and Bioprocess Engineering” 61 citations
,
February 1997 in “Differentiation” Hair differentiation starts earlier than thought, involving multiple type-II keratins.