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In this review, researchers examined the molecular diversity and expression patterns of major skin appendage proteins, like keratins and EDC proteins, in tetrapods, highlighting recent findings in reptiles and birds and identifying knowledge gaps for future research.

This review discusses the role of corneodesmosin in skin and hair follicle integrity, with mentions of its link to hypotrichosis simplex and peeling skin disease, and reports no new results.

This case report describes a 4-year-old boy with Penile Hair Tourniquet Syndrome caused by a hair coil, highlighting the importance of early diagnosis in circumcised boys to prevent severe complications.

This study reveals that transglutaminase activity is widespread in integumentary structures of mammals and birds, suggesting it plays a significant role in the cornification of hard skin appendages like nails and feathers.

This publication provides a standardized nomenclature for classifying microscopic lesions in laboratory rat and mouse skin, aiming to harmonize international toxicological research.

This article explains the structure and multifunctional roles of the human skin, including its protective, regulatory, and sensory functions, but does not report new research findings.

This study found that the Gsdma3 gene is necessary for normal hair follicle differentiation in mice, with its mutation leading to progressive hair loss and defects in hair structure.

This review discusses the use of hairs and feathers as defensive tools through toxin incorporation in certain mammals and birds and reports no new experimental findings.

This review synthesizes current evidence on platelet-rich plasma for dry eye disease and reports no new results; the authors emphasize the need for standardized trials to validate these approaches.

This review summarizes recent findings on keratins 6, 16, and 17, highlighting their role in keratinocyte behavior and nuclear functions, and discusses their potential as biomarkers for various skin pathologies, including damage, inflammation, and cancer, rather than in healthy skin.

This study demonstrates that PAD1 and PAD3 are involved in hair follicle differentiation, while PAD1 and PAD2 may play a role in the physiology of sweat glands and arrector pili muscles.

This study identified a new S100 fused-type protein, scaffoldin, in reptiles and birds and suggests that SFTP-positive epithelia serve as scaffolds for the growth of various skin appendages, indicating a common evolutionary origin.

In this study, researchers found that Notch signaling is crucial for late-stage epidermal differentiation and postnatal hair cycle homeostasis by regulating hair follicle stem cell proliferation and differentiation.

This study found that water-filtered infrared A radiation can induce the release of a model drug from gold nanoparticle-doped particles in hair follicles in an ex vivo porcine skin model, suggesting feasibility for follicular drug delivery systems.

In this study, targeting the expression of a keratin KRT5/KRT8 chimeric cDNA in keratin-deficient mice partially restored structural defects in epidermal cells, but did not fully normalize skin health.

This study found that disrupting Lm332 expression in mice changes keratinocyte genetic expression, alters cell shape, and disrupts epidermal homeostasis, despite some compensatory anchorage by hair follicle basal cells.

This review discusses the pathogenesis of melasma, including genetic, environmental, and hormonal factors, and highlights potential avenues for new treatments and preventive strategies, but reports no new experimental findings.

This study examined the cytodifferentiation stage of hair follicle development in cashmere goats, identifying nine cell populations and key regulatory pathways, including transcription factors and keratin genes, that may influence fiber quality and inform breeding strategies.

In this case report, researchers described a unique skin lesion in a 55-year-old woman, identifying it as folliculosebaceous cystic hamartoma with an unusual combination of spindle cell lipomatous and neural components, which had not been previously documented in such cases.

This study found that human peptidylarginine deiminase type III is the predominant isoform in hair follicles and may modulate structural proteins during hair and hair follicle formation.

This study is the first to detail major geriatric diseases in aged Julia Creek dunnarts, particularly highlighting hormonal issues like cystic glandular hyperplasia in females and testicular degeneration in males, suggesting these conditions are linked to aging and potentially hormonal dysregulation.

This study found that Neuregulin3 can influence the development and differentiation of mammary glands and epidermal features in mice, potentially by inducing c-Myc and altering cell proliferation and adhesion.

This study found that human hair follicle dermal papilla cells cultivated as 3D spheroids in hexanoyl glycol chitosan-coated dishes formed hair-like structures, with minoxidil enhancing growth, and successfully integrated into artificial skin models, suggesting advancements for hair loss treatments and skin restoration therapies.

This article discusses the structure and function of the skin's epidermis, detailing its role as a protective barrier and nutrient exchange system, without presenting new research findings.

This study suggests that TGase 3 may contribute to hair fiber scaffolding by forming specific isopeptide bonds between keratin intermediate filaments and keratin-associated proteins.

This study found that the systemic wrinkled skin phenotype in Xiang pigs involves gene expression changes and genetic variations associated with oxidative stress and extracellular matrix components, resembling features seen in Shar-Pei dogs.

This article discusses the structure of hair follicles and their significance in evaluating hair disorders, but it does not report any new research findings.

This review summarizes the dermoscopic structures associated with infectious and inflammatory skin conditions and hair disorders in children but reports no new clinical results.

This review discusses changes in keratin structure or gene expression that result in various skin disorders and reports no new clinical findings.

This review outlines the histological structures of the skin, highlighting species and regional differences in dermal absorption and obstacles encountered in toxicological assessments due to epidermal thickness variability, contact dermatitis reactions, and stem cell vulnerabilities.