Alpha Keratin
Research
20 / 1000+ resultsresearch Hard Alpha-Keratin Degradation Inside a Tissue Under High Flux X-Ray Synchrotron Micro-Beam: A Multi-Scale Time-Resolved Study
This study found that the molecular structure of hair is more sensitive to synchrotron X-ray radiation than its supramolecular architecture, indicating potential concerns for biological analyses using such radiation.
research Comparative Genomics Analyses of Alpha-Keratins Reveal Insights Into Evolutionary Adaptation of Marine Mammals
In this study, the researchers reported extensive gene loss and high pseudogenization rates of α-keratin genes in cetaceans compared to terrestrial mammals, likely linked to hair loss and aquatic adaptations.
research The Viscoelastic Properties of Chemically Modified Alpha-Keratins in Human Hair
This study found that chemically modifying human hair through esterification or disulfide reduction and alkylation affects the hair's viscoelastic properties, including stability, integrity, and response to moisture.
research The Use of Electron Spin Resonance Techniques to Determine Gamma Ray Exposure of Alpha-Keratin in Human Hair
This study suggested that electron spin resonance techniques can potentially measure gamma ray exposure in human hair samples, though variability and time sensitivity pose challenges for accurate dose estimation.
research DSC Investigations of Alpha-Keratins and the Specific Effects of Chemical Treatments on Human Hair
This study found that, compared to oxidative treatments, reductive perm-waving more severely impacts the intermediate filaments in European human hair, while both treatments alter denaturation kinetics in a first-order manner.
research Frequency of an Electrophoretic Variant of Hair Alpha Keratin in Human Populations
This study found that a specific variant in hair keratin was present mainly in Caucasian samples, with few exceptions showing likely Caucasian admixture.
research Cachexia and Graft-Versus-Host Disease-Type Skin Changes in Keratin Promoter-Driven TNF Alpha Transgenic Mice
This study reported that transgenic mice with targeted TNF alpha expression in keratinocytes showed impaired weight gain, retarded hair growth, and skin changes, leading to cachexia and necrosis.
research The Process of Cornification Evolved From the Initial Keratinization in the Epidermis and Epidermal Derivatives of Vertebrates: A New Synthesis and the Case of Sauropsids
Cornification evolved from keratinization in vertebrates, with differences between mammals and sauropsids.
research Organization of Microfibrils in Keratin Fibers Studied by X-Ray Scattering
The study improved understanding of keratin fiber structure by showing consistent microfibril diameter but varying distances and electron density profiles.
research Structure–Property Relationships of Meta-Kerateine Biomaterials Derived from Human Hair
This study observed that increasing the γ-kerateine content in meta-kerateine materials led to reduced elasticity, solidity, and hydrolytic stability, and decreased hepatocyte attachment support.
research Increased Rate of Hair Keratin Gene Loss in the Cetacean Lineage
This study highlights the loss of hair-type keratin genes in cetaceans compared to terrestrial mammals, suggesting a potential adaptive role linked to their hairless phenotype and habitat changes.
research Proteomic Tools for the Investigation of Human Hair Structural Proteins and Evidence of Weakness Sites on Hair Keratin Coil Segments
This study used proteomic techniques to analyze human hair proteins, revealing keratin heterogeneity and identifying posttranslational modifications, such as cysteine trioxidation and methylation.
research Cornification in Reptilian Epidermis Occurs Through the Deposition of Keratin-Associated Beta-Proteins (Beta-Keratins) Onto a Scaffold of Intermediate Filament Keratins
This study identified the distribution of keratin-associated proteins during cornification in the epidermis of reptiles, revealing unique structural characteristics in sauropsid keratin proteins compared to other vertebrates.
research Experimental Modulation of the Differentiated Phenotype of Keratinocytes from Epidermis and Hair Follicle Outer Root Sheath and Matrix Cells
This study found that distinct keratin profiles enabled the evaluation of epithelial differentiation in human hair follicles, with mesenchymal cells playing a critical role in epidermoid differentiation of follicular cells.
research Regulation of Hard Alpha-Keratin Mechanics via Control of Intermediate Filament Hydration: Matrix Squeeze Revisited
This study found that the keratin matrix in mammalian hard α-keratins is crucial for maintaining stiffness in water by controlling intermediate filament hydration.
research Keratinization of Sheath and Calamus Cells in Developing and Regenerating Feathers
Feathers become harder as they develop due to a change in keratin type.
research Ultrastructural Localization of Hair Keratin Homologs in the Claw of the Lizard Anolis Carolinensis
In this study, researchers found that alpha-keratin homologs similar to those in mammalian hair are present in the claws of the lizard Anolis carolinensis, suggesting a structural role during claw formation.
research Recurrent Functional Divergence of Early Tetrapod Keratins in Amphibian Toe Pads and Mammalian Hair
This study found that the main structural proteins of tree frog toe pads, which aid in their adhesive properties, are alpha keratins that have evolutionary origins in early tetrapods.
research Insights on the Hair Keratin Structure Under Different Drying Conditions
This study found that using a microfiber towel to dry human hair better preserves hair keratin integrity and wear resistance compared to blow-drying or using a cotton towel, as indicated by stronger alpha-helix structure in FTIR analysis.
research Keratin Biomaterials Activate Schwann Cells via Integrin-Mediated Signaling and Promote Regeneration of Large Peripheral Nerve Defects in a Rabbit Model
This study demonstrated that a keratin gel promotes nerve regeneration across critical defects in rabbit models, showing improved nerve conduction and muscle action potential compared to control treatments.