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This study found that hair from ovarian teratomas shares similar chemical composition and morphology with scalp hair, but differs in physical properties and cysteic acid bands.

This study found that a bio-based repair solution containing hydrolysed wool keratin, serine, and transglutaminase improved the physical and chemical properties of damaged hair, increasing its strength, flexibility, and thermal stability while offering long-lasting protection against chemical damage.

This study suggests that the cell membrane complex in hair cuticles contains hydrophilic regions with disulfide bonds allowing polymer uptake and hydrophobic lamella-like lipid layers.

This study confirms that the proposed universal model for hard α-keratin structure applies to all known forms across various mammalian species.

This study identified several candidate genes related to wool production traits and adaptation to hot, arid environments in Iranian sheep, highlighting potential targets for future inbreeding programs.

Hair fibers may have a unique, non-protein sheath not previously identified.

This review discusses past research on the chemical and physical properties of human hair, focusing on structural analysis and mechanical property measurements with methods like SEM and tension tests, but adds no new findings.

This study found that specific genetic variations in the IRF2BP2 gene influence fleece structure in sheep, with one variant completely determining coat type and another significantly modifying fiber characteristics, providing valuable insights for improving fleece quality through selective breeding.

In this study, the identification of a novel KAP gene in sheep, named KRTAP36-1, was associated with increased prickle factor in wool, suggesting its potential as a genetic marker for breeding purposes.

Hard α-keratin in hair has a unique, nonordered structure, different from other fibers.

This review covers various aspects of hair biology, pigmentation, and development, focusing on genetic and biochemical modulation of hair follicle components but reports no new findings.

This study examined genetic adaptations in Tibetan sheep through whole-genome resequencing, identifying key genes related to hypoxia tolerance, wool color, and body size. These findings provide a foundation for future molecular breeding strategies to enhance wool quality and adaptive traits in these high-altitude environments.

This review discusses hair follicle organoids as emerging models for studying hair biology and disorders, emphasizing their promise for bridging basic research and clinical applications, but reports no new results.

This study identified key genes involved in hair follicle development in Merino sheep, offering insights for improving wool production and providing a basis for future breeding programs.

Different keratin proteins are expressed in various epithelial cells at different stages, affecting cell structure and function.

This study found that keratin and other hair proteins in humans are extensively modified posttranslationally, which helps explain the structural characteristics of mature hair.

This study developed an efficient method for isolating and enriching multipotent ovine hair follicle stem cells, which may aid in research on the ovine hair cycle and future wool production.

This study observed that repeated perm treatments decrease disulfide bonds in hair due to their conversion largely into cysteic acid, affecting the waving efficiency depending on the reduction agent used.

This study found distinct expression patterns of various transcription types during hair follicle morphogenesis, providing a foundation for understanding hair development mechanisms and aiding selective breeding for desirable wool traits in a specific breed.

This editorial discusses the biology and pathology of hair follicles, including factors like fungi and hair loss therapies, but provides no new research findings.

This study found that the microRNAs oar-miR-23b and oar-miR-133 inhibit the proliferation and migration of sheep dermal fibroblasts, impacting the development of hair follicles in superfine wool sheep by targeting the genes TGFβ2 and NOTCH1.

This study found that washing hair after reduction in a permanent waving process allows for significant reformation of disulfide cross-links, enhancing the strength and elasticity of hair fibers.

This review highlights the critical role of microRNAs in regulating hair follicle biology, significantly impacting wool and cashmere development by modulating gene expression and signaling pathways in sheep and goats.

This study found that chemically treated hair, particularly when subjected to both acid straightening and bleaching, experiences more significant structural damage when exposed to heat, highlighting key changes in both the internal and surface components of hair fibers.

This study found that PT-LCG extends hair follicle activity and promotes continuous cashmere growth by enhancing lipid synthesis, remodeling the extracellular matrix, and modulating inflammatory signaling, offering insights into improving cashmere yield and quality through molecular breeding.

This study conducted a genome-wide association analysis on 1,125 ewes and identified 24 SNPs associated with wool production traits, and highlighted potential candidate genes like ADAR and TP53 for further research into the genetic mechanisms influencing wool growth in sheep.

In a controlled study, researchers observed that lambs exposed to colder temperatures had increased wool growth, thicker skin, altered physiological traits, and activated specific molecular pathways, highlighting potential targets for enhancing cold tolerance, welfare, and productivity in sheep breeds.

This study analyzed scalp hair proteins from healthy children and their mothers, finding that non-structural proteins could serve as promising biomarkers for understanding long-term developmental changes and health status linked to early childhood experiences.

This article reviews how biopolymers are utilized in cosmetics, highlighting their biodegradable and non-toxic properties, recent structural developments, novel applications, and safety considerations in the formulation of skin, hair, and oral care products.

In this study, researchers found that FGF9 plays a significant role in sheep wool growth by accelerating the proliferation and cell cycle of dermal papilla cells, potentially through regulation of the Wnt/β-catenin signaling pathway.