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This study found that light stimulation of intrinsically photosensitive retinal ganglion cells in the eyes can activate hair follicle stem cells through a neural circuit involving the sympathetic nervous system.

This study found that type 2 immunity may play a role in the development of alopecia areata in patients with extrinsic atopic dermatitis, indicating different immunological states compared to non-atopic patients.

This study found that age and follicular miniaturization were extremely weak predictors of total hair count in women with hair loss.

This study found that as Korean women age, their hair density, diameter, tensile strength, and lustre decline, while grey hair ratio and certain sterol contents increase, suggesting unique ageing features compared to women in other countries.

This review discusses the chemical effects of UV radiation on hair, hair photoaging, and photoprotective measures, and calls for more focused research in hair photoprotection as a field.

This study identified a novel human type I hair keratin, hHa3-II, as an isoform of a previously described hHa3 keratin, with distinct sequence differences indicating separate gene encoding.

This review discusses common skin disorders in older women and their treatments, but it reports no new clinical results.

This review discusses the pathogenesis of common sebaceous gland diseases and their molecular pathways, but it reports no new clinical findings.

This review discusses the mechanisms of skin-associated cell death and their potential role in treating inflammatory skin diseases, but presents no new clinical findings.

This article discusses common underlying mechanisms across hair loss disorders, emphasizing the role of inflammation, but reports no new clinical results.

This study conducted a narrative review of literature to identify non-pharmacological treatment solutions and strategies that might mitigate the negative impact of the exposome—factors like UV radiation, pollution, and lifestyle choices—on hair health.

This study demonstrated that carboxytherapy significantly increased epidermal and dermal thickness, improved collagen and elastin organization, and enhanced expression of TGF-β1 and VEGF in older skin.

This study reviewed literature on using vegetable oils to prevent skin aging, highlighting their antioxidant properties and their role in combating free radicals, which leads to extrinsic aging, while also noting Brazil's important contribution to this field with its rich natural resources.

This article reviews anti-aging strategies in dermatology, emphasizing the role of skin as a model for studying aging and promoting preventive and therapeutic interventions, but it does not present new findings.

This review discusses current knowledge of keratinocyte stem cell dynamics, including their regenerative roles and potential applications beyond wound healing, but presents no new clinical findings.

This review analyzed the complex interactions within the skin microenvironment that influence hair follicle development and regeneration, exploring its role in hair-related disease treatment and highlighting research challenges and future directions.

This review explores the multifaceted roles of melanocytes in skin biology, emphasizing their potential impact on future research to prevent and treat skin diseases, but reports no new experimental results.

In this study, researchers observed distinct aging signatures in mouse keratinocytes, with increased expression in older mice, and noted relevant pathway changes that were also evident in human skin, suggesting potential insights into intrinsic skin aging.

In this study, xerosis was the most common skin condition found among elderly participants, followed by wrinkling and immunoglobulin heavy chain deposition.

This study found that external light can rapidly activate hair follicle stem cells in animals via a retinal light-sensing pathway linked to the central and autonomic nervous systems.

This case report identifies a novel LIPH gene mutation linked to autosomal recessive woolly hair/hypotrichosis in a Japanese boy, expanding the spectrum of known mutations associated with this condition.

This article reviews the skin and hair changes associated with menopause due to hormonal shifts and reports no new clinical results.

Skin problems in the elderly are unique and may indicate other diseases, involving changes in skin, hair, nails, and increased cancer risk.

This article reviews potential pathomechanisms of vitiligo, emphasizing membrane alterations involving cholesterol and cardiolipin, but reports no new clinical findings.

This case highlights the potential link between type 1 diabetes, pernicious anemia, and alopecia areata universalis, suggesting clinicians should monitor for pernicious anemia in such patients.

This study reports that skin bacteria can accelerate hair follicle regeneration and improve wound healing through IL-1β signaling, by activating keratinocytes in a pathway involving IL1R/Myd88.

This study suggests a decision tree using in vitro metabolic clearance to identify early drug candidates likely to experience nonlinear pharmacokinetics due to intestinal CYP3A-related metabolism.

This study characterized the intron-exon organization of human keratin 15 and keratin 19 genes to aid future mutation detection analyses related to potential genetic disorders of keratinization.

This review examines intrinsic and extrinsic aging impacts and presents evidence-based lifestyle recommendations to complement cosmetic procedures for enhanced antiaging outcomes, but it reports no new clinical results.

This study found that intrinsic feedback loops are crucial for maintaining the function of human dermal papilla cells during hair growth, highlighting the importance of autocrine signaling and niche reprogramming for advancing hair follicle biology and regenerative therapies for hair loss.