research Convergent Evolution of Cysteine-Rich Keratins in Hard Skin Appendages of Terrestrial Vertebrates
Cysteine-rich keratins evolved independently in mammals, reptiles, and birds for hard skin structures like hair, claws, and feathers.
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30 / 1000+ results research Isolation of intermediate filament assemblies from human hair follicles.
Researchers isolated and identified structural components of human hair follicles, providing a model for studying hair formation.
research Keratin 17 Expression in the Hard Epithelial Context of the Hair and Nail, and its Relevance for the Pachyonychia Congenita Phenotype
Keratin 17 is important for hair and nail structure and affects pachyonychia congenita symptoms.
research Ultrastructural localization of hair keratin homologs in the claw of the lizard Anolis carolinensis
Lizard claws have hair-like keratins similar to those in mammals.
research 1426 Deletion of hoxc13 in frogs reveals key steps in the molecular evolution of cornified skin appendages
Deleting the Hoxc13 gene in frogs shows its crucial role in developing skin structures similar to hair.
research Dermo‐epidermal interactions in reptilian scales: Speculations on the evolution of scales, feathers, and hairs
Reptilian scales, feathers, and hairs evolved from changes in skin cell interactions.
research Cryo-Electron Microscopy of Trichocyte (Hard α-Keratin) Intermediate Filaments Reveals a Low-Density Core
Trichocyte filaments have a low-density core and may include proteins for hair structure.
research The Intermediate Filament Architecture as Determined by X-Ray Diffraction Modeling of Hard α-Keratin
Hard α-keratin in hair has a unique, nonordered structure, different from other fibers.
research In vivo formation steps of the hard α-keratin intermediate filament along a hair follicle: Evidence for structural polymorphism
Hair follicles form hard α-keratin filaments in four steps, showing structural differences.
research The Proteins of Hair and Other Hard α-Keratins
research Cornified Epithelial Teeth of Jawless Vertebrates Contain Proteins Similar to Keratin-Associated Proteins of Mammalian Skin Appendages
Jawless vertebrates have teeth proteins similar to those in mammalian hair and nails.
research Evolution of hard proteins in the sauropsid integument in relation to the cornification of skin derivatives in amniotes
Hard skin features like scales, feathers, and hair evolved through specific protein changes in different animal groups.
research Cosmetics and hair and nails
Hair and nails are skin parts that develop early and serve protective and functional roles.
research Plica Neuropathica in 2 Hispanic Patients
Two Hispanic women developed Plica neuropathica, a condition causing tangled hair, possibly due to hair damage and various risk factors.
research Skin Appendage Proteins of Tetrapods: Building Blocks of Claws, Feathers, Hair and Other Cornified Epithelial Structures
Understanding proteins in skin structures like claws and hair is crucial for future research.
research Molecular and Cellular Characterization of Avian Reticulate Scales Implies the Evo–Devo Novelty of Skin Appendages in Foot Sole
Bird foot scales develop differently and can repair but not fully regenerate due to the lack of specialized stem cell areas.
research Comparative Spatial Transcriptomic and Single-Cell Analyses of Human Nail Units and Hair Follicles Show Transcriptional Similarities between the Onychodermis and Follicular Dermal Papilla
Human nails and hair follicles have similar gene activity, especially in the cells that contribute to their growth and development.
research Immunolocalization of Scaffoldin, a Trichohyalin‐Like Protein, in the Epidermis of the Chicken Embryo
Scaffoldin helps form hard skin structures in chicken embryos.
research Structural and Immunocytochemical Characterization of Keratinization in Vertebrate Epidermis and Epidermal Derivatives
Vertebrate skin evolved to be more specialized and complex, especially in land animals.
research The structure of the cornified claw sheath in the domesticated cat (Felis catus): implications for the claw‐shedding mechanism and the evolution of cornified digital end organs
Cat claws stay sharp by shedding their outer layer through microcracks formed during activities.
research Single-cell transcriptomics defines keratinocyte differentiation in avian scutate scales
The research identified two types of keratinocytes in chicken scales: one for hard scales and another for soft skin, with similarities to human skin differentiation.
research Hedgehog Signaling, Keratin 6 Induction, and Sebaceous Gland Morphogenesis
Hedgehog signaling is essential for normal sebaceous gland development and affects keratin 6a expression.
research Unraveling the Molecular Mechanisms of Hair and Nail Genodermatoses
Genetic discoveries are key for understanding, diagnosing, and treating inherited hair and nail disorders.
research Identification of reptilian genes encoding hair keratin-like proteins suggests a new scenario for the evolutionary origin of hair
Reptiles have genes similar to hair proteins, suggesting hair's genetic origins predate mammals.
research Transglutaminase Activity Is Conserved in Stratified Epithelia and Skin Appendages of Mammals and Birds
Transglutaminase activity is important for skin and is found in both mammals and birds.
research Pax9 is required for filiform papilla development and suppresses skin-specific differentiation of the mammalian tongue epithelium
Pax9 is crucial for proper tongue surface development and preventing skin-like changes.
research Ultrastructural aspect of the keratinolytic activity of piedra.
Piedraia hortae fungi dissolve both the outer and inner layers of hair.
research The Story of the Finest Armor: Developmental Aspects of Reptile Skin
Reptile skin protects and prevents water loss, helping them adapt to land.
research Keratin 17 null mice exhibit age- and strain-dependent alopecia
Keratin 17 is crucial for early hair strength and cell survival.
research Hair keratin KRT81 is expressed in normal and breast cancer cells and contributes to their invasiveness
The hair keratin gene KRT81 is found in both normal and breast cancer cells and helps them invade surrounding tissues.