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.
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30 / 76 resultsresearch 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 Review: Evolution And Diversification Of Corneous Beta-Proteins, The Characteristic Epidermal Proteins Of Reptiles And Birds
Corneous beta-proteins evolved uniquely in reptiles and birds, forming scales, claws, beaks, and feathers.
research Transcriptome Analyses of Reprogrammed Feather/Scale Chimeric Explants Revealed Co-Expressed Epithelial Gene Networks During Organ Specification
Key genes can rewire networks, changing skin appendage types.
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 The Regeneration Blastema of Lizards: An Amniote Model for the Study of Appendage Replacement
Lizards can regrow their tails, and studying this process helps understand scar-free healing and limb regeneration.
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.
research Immunolocalization of a Histidine-Rich Epidermal Differentiation Protein in the Chicken Supports the Hypothesis of an Evolutionary Developmental Link Between the Embryonic Subperiderm and Feather Barbs and Barbules
A specific protein in chicken embryos links early skin layers to feather development.
research Evo Devo of the Vertebrate Integument
The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
research Evolution of Trichocyte Keratins
Hair keratins evolved from ancient proteins, diversifying through gene changes, crucial for forming claws and later hair in mammals.
research Molecular and Cellular Characterization of Avian Reticulate Scales and the Evolutionary Development of Skin Appendages in Foot Soles
Bird foot scales develop differently and can repair but not fully regenerate due to the lack of specialized stem cell areas.
research BMP2 And BMP7 Play Antagonistic Roles In Feather Induction
BMP2 and BMP7 have opposite roles in feather formation.
research Comparative Biology of Tissue Repair, Regeneration, and Aging
The symposium concluded that understanding how different species repair tissue and how this changes with age can help advance regenerative medicine.
research Molecular Evolution of HR, a Gene That Regulates the Postnatal Cycle of the Hair Follicle
Changes in the HR gene have influenced hair growth and may lead to hair loss conditions in humans.
research Specific Ectodermal Enhancers Control the Expression of Hoxc Genes in Developing Mammalian Integuments
The HoxC gene cluster and its enhancers are essential for developing hair and nails in mammals.
research Transcriptome Analysis Reveals the Genetic Basis Underlying the Development of Skin Appendages and Immunity in Hedgehog (Atelerix Albiventris)
The study found that certain genes are important for hedgehog skin appendage development and immunity, with spines possibly evolving for protection and infection resistance.
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 Ex Vivo SIM-AFM Measurements Reveal the Spatial Correlation of Stiffness and Molecular Distributions in 3D Living Tissue
Collagen makes skin stiff, and preservation methods greatly increase tissue stiffness.
research Inductive Properties of Hair Follicle Cells
Hair growth can be induced by certain cells found at the base of hair follicles, and these cells may also influence hair development and regeneration.
research Hair Matrix Germinative Epidermal Cells Confer Follicle-Inducing Capabilities on Dermal Sheath and High Passage Papilla Cells
Hair growth can be stimulated by combining certain skin cells, which can rejuvenate old cells and cause them to specialize in hair follicle creation.
research Keratinocytes of the Upper Epidermis and Isthmus of Hair Follicles Express Hemoglobin mRNA and Protein
Skin cells and certain hair follicle areas produce hemoglobin, which may help protect against oxidative stress like UV damage.
research Dynamics and Epigenetics of the Epidermal Differentiation Complex
Epigenetic mechanisms control skin development by regulating gene expression.
research Paternal Finasteride Treatment Can Influence the Testicular Transcriptome Profile of Male Offspring—Preliminary Study
Father's finasteride use may affect son's fertility and testicular function.
research The Fraser Complex Proteins Can Form Anchoring Cords Without AMACO at the Dermal-Epidermal Junction of Mouse Skin
Certain skin proteins can form anchoring structures without the protein AMACO.
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 ROBO4 Deletion Ameliorates PAF-Mediated Skin Inflammation by Regulating the mRNA Translation Efficiency of LPCAT1/LPCAT2 and the Expression of PAF Receptor
Removing the ROBO4 gene in mice reduces skin inflammation and hair loss by affecting certain inflammation pathways and gene expression.
research Localization of Members of the Notch System and the Differentiation of Vibrissa Hair Follicles: Receptors, Ligands, and Fringe Modulators
Notch-related genes play a key role in the development and cycling of hair follicles.
research Induction of Hair Follicle Regeneration in Rat Ear by Microencapsulated Human Hair Dermal Papilla Cells
Human hair cells can be used to grow new hair on rat ears, suggesting a possible treatment for hair loss.
research Distinct Tooth Regeneration Systems Deploy a Conserved Battery of Genes
Different fish use the same genes to regrow teeth.
research Perspectives on Hair Evolution Based on Comparative Studies on Vertebrate Cornification
Hair in mammals likely evolved from glandular structures, not scales.