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 Decision letter: Hair follicle epidermal stem cells define a niche for tactile sensation
Hair follicle stem cells are crucial for touch sensation and proper nerve structure in mice.
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 A highly resistant structure between cuticle and cortex of human hair
A tough membrane between the outer and inner layers of human hair protects it from damage.
research Immunohistochemical demonstration of keratins in the epidermal layers of the Malayan pangolin (Manis javanica), with remarks on the evolution of the integumental scale armour
Keratins in Malayan pangolins vary by region, suggesting scales evolved from the tail towards the head.
research Structural analysis of the outermost hair surface using TOF-SIMS with gas cluster ion beam sputtering
The hair's outermost surface has multiple layers of lipids and proteins.
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 A histochemical examination of the epidermis of the southern elephant seal (Mirounga leonina L.) during the telogen stage of hair growth
The southern elephant seal's skin layer helps waterproof the skin by being tightly connected to hair shafts.
research Formation of surface membranes in developing mammalian hair fibres
Mature hair surfaces are formed by keratinized cells with developed layers, not just modified plasma membranes.
research The Arrector Pili Muscle and the Follicular Unit of the Scalp: A Microscopic Anatomy Study
The study found that hair follicles are above muscle connections in the scalp, which may help protect stem cell areas.
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 Epidermal Cells Expressing Putative Cell Markers in Nonglabrous Skin Existing in Direct Proximity with the Distal End of the Arrector Pili Muscle
Certain skin cells near the base of hair muscles may help renew and stabilize skin, possibly affecting skin disorder understanding.
research 660 Complex cellular flows shape feather follicle topology
Cell movements and forces shape feather growth in chicken skin.
research Three-Dimensional Analysis of Cell Division Orientation in Epidermal Basal Layer Using Intravital Two-Photon Microscopy
Cell division orientation varies by body site and is linked to epidermal thickness and cell density.
research Existence of various structural zones in keratinous tissues revealed by X-ray microdiffraction
Keratinous tissues have multiple structural layers, including ordered keratin and lipid granules.
research Morphological and histological observations on the hair brush of Endoclita vietnamensis (Lepidoptera, Hepialidae)
The study identifies the pheromone gland's location and structure in Endoclita vietnamensis, aiding future pest control methods.
research Fine structure of marsupial hairs, with emphasis on trichohyalin and the structure of the inner root sheath
Marsupial hair structure and keratin distribution are similar to placental mammals.
research Special issue on epidermal and hair follicle differentiation, part 2
research Keratin Expression Provides Novel Insight into the Morphogenesis and Function of the Companion Layer in Hair Follicles
Keratin patterns in hair follicles help understand hair growth and potential hair and nail disorders.
research Author response: Hair follicle epidermal stem cells define a niche for tactile sensation
Skin stem cells in hair follicles are important for touch sensation.
research Heterotypic cell contacts and basal lamina morphology during hair follicle development in the mouse: a light, scanning, and electron microscopic study at the site of tissue interaction
Heterotypic cell contacts likely help hair matrix cells differentiate during mouse hair follicle development.
research Keratin expression in the normal nail unit: markers of regional differentiation
Different parts of the nail express different keratins, showing unique patterns of differentiation.
research Keratins 1 and 10 or homologues as regular constituents of inner root sheath and cuticle cells in the human hair follicle.
Keratins K1 and K10 are found in the inner root sheath and cuticle of human hair follicles.
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 Mechanical stiffness across skin layers in human: a pilot study
The epidermis is the stiffest skin layer.
research Histochemical observation of the cell membrane complex of hair.
The Cell Membrane Complex in hair has both water-attracting and water-repelling layers.
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 1299 Live imaging of keratin network in stratum granulosum reveals dynamic cytoskeletal changes during cornification in mice in vivo
The keratin network in mouse skin changes during cornification and affects the skin's protective barrier.
research Colocalization of Cystatin M/E and its Target Proteases Suggests a Role in Terminal Differentiation of Human Hair Follicle and Nail
Cystatin M/E helps in the final stages of hair and nail formation by controlling certain enzymes.
research Epithelial skirt and bulge of human facial vellus hair follicles and and associated Merkel cell-nerve complex
Merkel cells are abundant in facial vellus hair follicles, especially during the anagen phase.