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This paper reviews the evolution of skin appendages and keratin-associated proteins among amniotes, proposing a model for their genetic divergence without new experimental results.

This study observed that in chicken skin, large-scale differences in gene expression between feathered and scaly skin are controlled by enhancer-driven uniform expression, while small-scale differences within individual feathers are associated with chromatin looping.

This study suggests that the keratins found in reptile and bird skin appendages evolved independently from mammalian hair keratins, highlighting convergent evolution in these species.

In this study, transiently activating the sonic hedgehog signaling pathway in chickens transformed reticulate scales on the feet into feathers comparable to body feathers, without ongoing treatment, suggesting this pathway affects the diversity of bird skin appendages.

In this study, researchers explored the molecular and cellular traits of avian reticulate scales, finding that they lack localized stem cell niches for regeneration, unlike other scale types, leading to repair but not regeneration after wounding.

This case report identifies two specific mutations in the WRN gene in a 40-year-old female with Werner syndrome, highlighting the need for awareness of its early manifestations and treatment options.

This study describes how avian-inspired imagery is used in dermatology to help clinicians and patients identify and communicate skin conditions, using familiar terms like "chicken skin" and "fried egg" to capture specific visual patterns and clinical features.

This case report details the ocular complications of Hutchinson-Gilford Progeria syndrome in a 20-year-old Bangladeshi patient, highlighting symptoms like dry eyes, Meibomian gland dysfunction, and cataracts.

This review discusses spatial and temporal patterns in animals, focusing on skin appendage organs, but provides no new research findings.

This study found that hCG decreased 5α-reductase and androgen receptor levels in skin samples from women in vitro, suggesting that human skin responds to LH/hCG treatment.

This review article highlights that obesity is a significant risk factor for several inflammatory skin conditions, such as psoriasis and atopic eczema, contributing to increased overall morbidity among those affected.

This article reviews recent imaging and genetic tool advances that enable in vivo study of hair regeneration and assessment of skin parameters, but it reports no new clinical results.

This review summarizes the current understanding of microRNAs in skin biology, highlighting their roles in processes like wound-healing and aging, without presenting any new experimental results.

This review discusses the profound impact of obesity on skin physiology and dermatologic conditions and reports no new experimental results, recommending awareness and treatment strategy development for obesity-associated dermatoses.

This review discusses the roles of Wnt signaling in skin organogenesis and related processes but reports no new experimental results, highlighting areas for future research.

This study explored the regenerative abilities of the African spiny mouse's skin, revealing more robust wound-induced hair follicle neogenesis compared to laboratory mice and highlighting unique features of its hair and wound response.

Genetic research has advanced our understanding of skin diseases, but complex conditions require an integrative approach for deeper insight.

This study reports that male-pattern baldness may be linked to an increased risk of skin cancer, particularly for tumors located on the scalp.

This study validated the Egyptian Arabic version of the Skindex-16 and found that skin conditions significantly impacted patients' quality of life, particularly in the emotional domain.

Chicken feather gene mutation helps understand human hair disorders.

Bardet-Biedl syndrome may include under-recognized skin problems related to its metabolic disturbances.

New methods for growing skin cells can improve skin grafts by building blood vessels within them.

This review explores the diverse health benefits and pharmacological properties of mushrooms, highlighting their potential use in cosmetics for antioxidant, anti-aging, and anti-hair loss effects due to their bioactive compounds.

This study explored the role of Twist2 in fetal wound healing in embryonic mice, observing that its expression was vital for scarless regeneration and normal hair follicle formation; Twist2 knockdown led to visible scars and defective follicle formation.

In this study, researchers found that the protein Twist2 plays a crucial role in scarless wound healing in early embryonic mouse skins, with its knockdown leading to visible scarring and defective hair follicle formation, suggesting potential therapeutic targets for reducing scars and promoting regeneration.

In this study, the researchers found that deleting ceramide synthase 4 in the skin's epidermis alters stem cell differentiation, disrupting hair follicle structure and barrier function, potentially leading to immune responses similar to atopic dermatitis.

Some chemicals can permanently or temporarily remove color from skin and hair, which can be distressing and is not well-regulated in cosmetics.

This study describes a staining technique that differentiates medullary from cortical keratin in sheep and goat hair using Ziehl-Neelsen's carbol-fuchsin in skin biopsy sections.

This study found that a mutation in the BMP12/GDF7 gene is associated with the Naked neck trait in chickens, reducing neck feathering due to altered signaling pathways.

This article explores how extrafollicular environments and stem cell configurations influence hair and feather regeneration but provides no new experimental results.