research Transient agonism of the sonic hedgehog pathway triggers a permanent transition of skin appendage fate in the chicken embryo
Activating the sonic hedgehog pathway in chicken embryos can permanently change scales to feathers.
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480-510 / 1000+ resultsresearch Compound Follicles in Folliculitis Decalvans Do Not Contain Vellus and Retained Telogen Follicles—A Pilot Histopathologic Series on Polytrichia
Compound follicles in folliculitis decalvans mainly have active hair follicles.
research Sexually dimorphic sail feathers in the Mandarin duck as a model for lifelong developmental modulation
Mandarin duck sail feathers change with seasons due to hormones and genetic regulation.
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 Keratins and Hair Follicle–Specific Epithelial Keratins
Hair and follicle keratins differ in structure and expression, especially in cysteine content.
research 574 Murine sebaceous gland homeostasis requires intact cutaneous innervation in a hair cycle-dependent context
Mouse skin glands need healthy nerves to grow properly during hair growth phases.
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 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 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.
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 Mammalian-specific ectodermal enhancers control the expression of Hoxc genes in developing nails and hair follicles
HoxC genes are crucial for normal hair and nail development.
research Histology of moose (Alces alces andersoni) interdigital glands and associated green hairs
Moose have unique interdigital glands with green hairs and larger glands during mating season.
research Dynamic ultrastructural changes of the connective tissue sheath of human hair follicles during hair cycle
The connective tissue around hair follicles changes structure throughout the hair cycle.
research Isolation and Characterization of a Putative Keratin-Associated Protein Gene Expressed in Embryonic Skin of Mice
The 4C32 gene may help in mouse skin development and differentiation.
research Distribution of keratin and associated proteins in the epidermis of monotreme, marsupial, and placental mammals
Monotreme and marsupial skin proteins show primitive features and species-specific differences compared to placental mammals.
research Sphingolipids of the Murine Hair
Murine hair has specific types of ceramides and glucosylceramides but lacks acylceramides.
research Scaling dermatosis in three dogs associated with abnormal sebaceous gland differentiation
Three dogs with a rare skin condition improved with treatment.
research Characterization of hair follicles in Hirosaki hairless rats with deletion of basic hair keratin genes : enlarged medulla, loss of cuticle and long catagen
research Follicular ichthyosis
The four patients have a unique type of ichthyosis affecting hair follicles.
research AN ULTRASTRUCTURAL POSTNATAL DEVELOPMENTAL STUDY OF THE INTEGUMENT OF THE PIG (SUS SCROFA)
Pig skin is similar to human skin, with no major changes as they age.
research Pseudopili Annulati in a Dark‐Haired Individual: A Light and Electron Microscopic Study
A dark-haired Chinese girl had hair that looked banded under certain light but was normal under a microscope.
research K6irs1, K6irs2, K6irs3, and K6irs4 Represent the Inner-Root-Sheath-Specific Type II Epithelial Keratins of the Human Hair Follicle1
Four specific keratins in hair follicles help understand hair structure and function.
research The mouse keratin 6 isoforms are differentially expressed in the hair follicle, footpad, tongue and activated epidermis
Mouse keratin 6 isoforms have different expression patterns in various tissues.
research An Ultra-high Sulfur Keratin Gene is Expressed Specifically During Hair Growth
research Cutaneous Ultrastructural Features of the Flaky Skin (fsn) Mouse Mutation
The flaky skin mouse mutation is a natural model for studying human psoriasis.
research Expression of hair-related keratins in a soft epithelium: Subpopulations of human and mouse dorsal tongue keratinocytes express keratin markers for hair-, skin- and esophageal-types of differentiation
Hoxc13 is important for hair and tongue development by controlling hair keratin genes.
research Evo Devo of the Vertebrates Integument
The skin systems of jawed vertebrates evolved diverse appendages like hair and scales from a common structure over 420 million years ago.
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 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 The Role of Interface Geometry and Appendages on the Mesoscale Mechanics of the Skin
Skin's uneven surface and hair follicles affect its stress and strain but don't change its overall strength, and help prevent the skin from peeling apart.