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This chapter discusses the skin stem cell niche as a complex ecosystem and highlights the diverse components and interactions that influence stem cell function, but it reports no new experimental results.

This review suggests that telocytes in male reproductive organs help organize tissue structure and paracrine factors, impacting organ development and pathology, but more research is needed on their molecular pathways.

Histone demethylases play a key role in the development of many diseases and may be targets for treatment.

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.

In this study, the researchers found that mammalian hair likely evolved through the adaptation of existing structural proteins, as similar cysteine-rich α-keratins were identified in chicken and lizard genomes, suggesting pre-mammalian origins.

This review examines the roles of Hyaluronic Acid and Versican in the skin extracellular matrix and reports no new research findings, highlighting their involvement in processes like differentiation and wound healing.

This study demonstrates that polarized second harmonic generation imaging effectively monitors wool fiber stretching, revealing significant structural changes in keratin alignment that improve textile performance.

This review discusses the potential of metal organic frameworks for drug delivery in wound treatment, highlighting their unique properties and recent research advancements, but reports no new clinical results.

This study provides a comprehensive review of the use of electrospinning technology to create 3D porous structures for bone implants, emphasizing the synergy between biomedicine and materials science necessary for developing orthopedic materials.

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 explores the potential of alginate as a promising alternative to donor tissue for corneal transplantation due to its adaptability, transparency, and low immunogenicity, and discusses how chemical modifications can enhance its properties for use in corneal tissue engineering.

This source highlights that while plant sterols show potential benefits and applications in various industries, significant research gaps, including their complex structures and mechanisms, hinder their broader use, emphasizing the need for innovative sources and sustainable methods for their study.

This study found that certain synthetic corticosteroid and progesterone analogues inhibited hair growth in castrated male mice, with varying effects based on specific chemical modifications.

This review outlines recent progress in CRISPR/Cas9 genome editing, discussing its structure, mechanisms, and the use of genetic, chemical, and physical strategies to enhance precision and reduce off-target effects despite some persistent challenges for clinical application.

This summary explains the different types of wrinkles, their causes, and their distinct microanatomical characteristics, noting that each type may respond differently to treatments.

This review highlights the potential of extracellular vesicle-based therapies for treating various diseases, but it also notes challenges like the lack of regulatory guidelines that hinder their clinical development.

This article reviews the role of stem cells in tissue development, tumor formation, and organoid generation, and highlights the potential of epigenetic regulation in advancing regenerative medicine and cancer treatment, without presenting new experimental results.

This study found that the differential expression of α- and β-keratin genes in feathers may explain their morphological and structural diversity, highlighting the chicken as a model for studying keratin-related diseases.

Hair treatments like bleaching increase friction by exposing tiny pores on the hair surface.

This review assesses existing knowledge about the 17q21.31 inversion polymorphism, highlighting its genetic structure differences across ancestries, associations with various diseases, and implications for precision medicine and drug discovery.

This study characterized the mouse profilaggrin gene, finding it structurally identical to its human counterpart, and noted differences in protein-coding regions that could impact epidermal differentiation.

Pollution exposure speeds up hair damage.

This study found that hair loss in an Olmsted syndrome mouse model with a Trpv3 mutation was linked to premature keratinocyte maturation, affecting hair follicle structure and function.

This review discusses the advantages and progress of chitosan hydrogels in vascular regeneration for tissue engineering scaffolds, highlighting modifications to enhance their application and exploring future prospects.

This study found that the unique crest feather formation in Polish chickens is driven by a 195-bp duplication in the HoxC10 gene region, which alters gene expression by modifying the genomic structure, suggesting a mechanism for diverse integumentary appendages in birds.

This study demonstrated that in live rodents, actin filaments adjust their structure to facilitate membrane transfer between cellular compartments with different biophysical properties.

This review reports that chitosan, a versatile polysaccharide, shows potential for various therapeutic applications due to its chemical modifications, notably in treating non-communicable diseases and wound healing, though further clinical study is needed to confirm these benefits.

This review concludes that anabolic–androgenic steroid abuse may lead to significant neurotoxicity, affecting brain structure, neurotransmitter systems, and increasing the risk of mood disorders and cognitive deficits.

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 chapter provides an overview of skin physiology, aging effects, and how environmental factors like UV damage impact skin health, without presenting new research findings.