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.
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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 Immunolocalization of Scaffoldin, a Trichohyalin‐Like Protein, in the Epidermis of the Chicken Embryo
Scaffoldin helps form hard skin structures in chicken embryos.
research Molecular signaling in feather morphogenesis
Feather growth and regeneration involve complex patterns, stem cells, and evolutionary insights.
research Molecular Signaling and Nutritional Regulation in the Context of Poultry Feather Growth and Regeneration
Good feather growth in poultry needs the right balance of proteins, amino acids, minerals, and vitamins.
research The Chicken Frizzle Feather Is Due to an α-Keratin (KRT75) Mutation That Causes a Defective Rachis
A mutation in the KRT75 gene causes frizzle feathers in chickens.
research Morpho‐regulation in diverse chicken feather formation: Integrating branching modules and sex hormone‐dependent morpho‐regulatory modules
Sex hormones, especially estradiol, can change chicken feather shapes and colors.
research Gene Expression Profiling of the Intact Dermal Sheath Cup of Human Hair Follicles
Researchers found specific genes in the part of hair follicles that could help treat hair disorders.
research In Ovo Injection of CHIR-99021 Promotes Feather Follicle Development via Modulating the Wnt Signaling Pathway and Transcriptome in Goose Embryos (Anser cygnoides)
Injecting CHIR-99021 into goose embryos improves feather growth by changing gene activity and energy processes.
research Pitx2, a β-catenin-regulated transcription factor, regulates the differentiation of outer root sheath cells cultured in vitro
Pitx2 helps outer root sheath cells differentiate but can't start hair growth on its own.
research Fine structure and immunocytochemistry of monotreme hairs, with emphasis on the inner root sheath and trichohyalin‐based cornification during hair evolution
Monotreme hair structure and protein distribution are similar to other mammals, but their inner root sheath cornifies differently, suggesting a unique evolution from reptile skin.
research Comprehensive molecular and cellular studies suggest avian scutate scales are secondarily derived from feathers, and more distant from reptilian scales
Bird scales evolved from feathers, not reptile scales.
research A Study on Melatonin Receptor Genes Expression in Embryonic Goose Skin Feather Follicles
Melatonin receptor genes likely play an important role in the development of goose feather follicles.
research Sprouty/FGF signaling regulates the proximal–distal feather morphology and the size of dermal papillae
Sprouty and FGF balance is crucial for normal feather shape and size.
research The mesenchymal component of hair follicle neogenesis: background, methods and molecular characterization
The document concludes that specific cells are essential for hair growth and more research is needed to understand how to maintain their hair-inducing properties.
research Genomic Organization, Transcriptomic Analysis, and Functional Characterization of Avian α- and β-Keratins in Diverse Feather Forms
Feather diversity is due to different keratin gene combinations, and chickens can help study human keratin diseases.
research Deciphering principles of morphogenesis from temporal and spatial patterns on the integument
The conclusion is that skin and hair patterns are formed by a mix of cell activities, molecular signals, and environmental factors.
research The Lysosomal Protease Cathepsin L Is an Important Regulator of Keratinocyte and Melanocyte Differentiation During Hair Follicle Morphogenesis and Cycling
Cathepsin L is essential for normal hair growth and development.
research Physiological Regeneration of Skin Appendages and Implications for Regenerative Medicine
The document concludes that understanding hair and feather regeneration can help develop new regenerative medicine strategies.
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 Macrophage-Stimulating Protein Promotes Hair Growth Ex Vivo and Induces Anagen from Telogen Stage Hair Follicles In Vivo
Macrophage-stimulating protein helps hair grow and can start hair growth phase in mice and human hair samples.
research Follicular Cell Implantation: An Emerging Cell Therapy for Hair Loss
Follicular Cell Implantation might become a new treatment for hair loss and could lead to advances in organ regeneration.
research Regulation of feather follicle development and Msx2 gene SNP degradation in Hungarian white goose
The Msx2 gene affects feather development in Hungarian white geese and a specific gene variation could indicate feather quality.
research George Ernest Rogers 1927–2021
George Ernest Rogers was a notable scientist who made important discoveries about hair and wool proteins.
research Understanding the functional contribution of dermal stem cells to hair follicle regeneration and skin wound healing
Dermal stem cells help regenerate hair follicles and heal skin wounds.
research Transcriptomic analyses of regenerating adult feathers in chicken
Chicken feather growth involves specific genes and shares similarities with hair development.
research Localisation 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 Hair Growth Induction: Roles of Growth Factors
EGF and FGF help hair growth by affecting cell differentiation and fiber growth.
research Perspectives on Hair Evolution Based on Some Comparative Studies on Vertebrate Cornification
Hair in mammals likely evolved from glandular structures, not scales.
research 839 Spatiotemporal antagonism in mesenchymal-epithelial Signaling in sweat versus hair fate decision
Sweat glands and hair follicles are determined by opposing signals, with BMPs promoting sweat glands and blocking BMPs leading to hair follicles.