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This review discusses the history and development of keratin biomaterials for biomedical uses, highlighting their biological activity and biocompatibility, and provides no new research findings.

This study found that micro-niches within hair follicles create heterogeneity among stem cells and transit-amplifying cells, leading to specialized progenitors that control tissue morphogenesis and regeneration.

Alopecia areata is an autoimmune disorder causing hair loss, linked to specific hair follicle antigens and genetic factors.

This study reports the discovery of mutations in the PADI3, TGM3, and TCHH genes as molecular genetic causes of uncombable hair syndrome in children, indicating an autosomal-recessive inheritance pattern.

This review discusses the diverse roles of Frizzled proteins in developmental and homeostatic processes and reports no new experimental findings.

This review explains the genetic diversity of sheep wool keratin-associated protein genes and explores how this variation might be leveraged for selective breeding to enhance wool fiber traits.

This study found that Blimp1 plays a key role in promoting hair follicle morphogenesis and growth by mediating inductive signaling pathways in dermal papilla cells.

In this study, the researchers identified key genes with differential m6A methylation involved in cashmere fiber growth, suggesting these modifications may play a significant role in this process.

This study found that the Dun camouflage color in horses is due to TBX3 expression, which causes uneven pigment deposition, whereas non-dun coat colors result from regulatory mutations affecting TBX3 expression.

This research found that variations in the KRTAP gene family are likely responsible for the diverse hair phenotypes seen among mammals, influenced by gene repertoire differences, expression, and evolutionary factors.

This study describes GPRC5D's unique expression pattern in tissues that produce hard keratin, with retinoic acid inducing its expression in hair bulb cells and affecting keratin gene regulation.

In this study, transcriptome analysis suggested that lipid metabolism and apoptosis may be key factors influencing hair length differences between short-hair and long-hair rabbits.

This review highlights the potential of permeation enhancers to improve the delivery of active ingredients across the skin, optimizing therapeutic outcomes despite challenges posed by individual variability and environmental factors, according to the authors' analysis of current understanding and applications in skincare and transdermal therapies.

This study found that strigolactone biosynthesis and signaling components in soybean may interact with other hormone pathways, influencing soybean development and nodulation.

This study highlights the loss of hair-type keratin genes in cetaceans compared to terrestrial mammals, suggesting a potential adaptive role linked to their hairless phenotype and habitat changes.

This study found that keratin K80, structurally similar to hair keratins, is broadly expressed in various epithelial tissues and is involved in intermediate filament formation with multiple type I partners.

In this study, researchers identified a highly reactive, isozyme-specific sequence for TGase 3, contributing to understanding its distinct functional role and activity distribution in the mouse epidermis.

This study found that manipulating prolactin levels in New Zealand Wiltshire sheep induces wool follicle growth cycles, revealing gene expression changes that suggest roles for specific genes in follicle function.

This review discusses recent advances in developmental tissue engineering for regenerating ectodermal appendages like teeth and glands, emphasizing biomaterial selection and cell culture strategies, but reports no new experimental results.

In this study, the researchers identified a variant in the CCHCR1 gene associated with an alopecia areata subtype characterized by impaired keratinization and autoimmune events.

This study found that specific genetic changes in both coding and noncoding regions may have independently driven the evolution of hairlessness in various mammalian species through accelerated evolution.

This study presents a bioprinter-based method for creating scalable, automated hair-inductive tissue grafts that showed improved hair shaft sprouting in mice by using suture guides to control orientation.

This review highlights recent advancements in using nanotechnology for scar prevention and treatment, emphasizing the unique properties of nanomaterials in drug delivery and the challenges that remain in maximizing their potential for effective scar interventions.

In this study, certain cysteine residues in Romney sheep wool fibers were labeled more often during stretching tests, particularly under wet conditions, suggesting variability in their disulfide bond contributions to fiber mechanics depending on hydration.

This review examines the genetic challenges in improving wool and cashmere fibers, emphasizing the need for further research on wool keratins and keratin-associated proteins to enhance fiber characteristics.

This review discusses the role of keratin-associated proteins in the growth and characteristics of wool and hair fibres from sheep and goats, and highlights areas for future research, but it presents no new findings.

This study demonstrated that keratin K124 is specific to equine hoof lamellar tissue and established monoclonal antibodies that can specifically recognize K124 without cross-reacting with other tissues.

This study observed that regular coconut oil users have significantly reduced hair irregularities compared to non-oil users, as quantified by a new "hair protection factor" metric, highlighting coconut oil's potential in minimizing hair damage.

In this study, researchers propose that different vertebrate skin appendages, such as hair, feathers, and scales, evolved in parallel from a shared ancestral cell structure associated with teeth, dating back approximately 420 million years ago.

This review describes distinct trichoscopic findings for various alopecias in individuals with skin of color, but reports no new clinical results.