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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 review discusses the regulation and function of vitamin D and its receptor in skin cells, highlighting their roles in processes such as proliferation inhibition, differentiation, and innate immunity, but reports no new results.

This review examines the functions of vitamin D and its receptor in skin and explores how these are regulated, reporting no new clinical results.

This review explores the impact of vitamin D deficiency on the skin from a dermatological perspective, but reports no new clinical results.

This article examines the role and composition of integral hair lipids in forming a protective barrier similar to the skin's epidermal lipid layer and reports no new findings about their effects.

This review summarized multiple molecular markers studied for their association with dry skin, finding considerable variability and uncertainty about which markers best indicate xerosis cutis.

This study utilized magnetic resonance imaging to noninvasively visualize and differentiate skin structures in rat skin, finding a significant correlation between MRI data and histological areas.

This study found that unsaturated fatty acids are more abundant in the cortex of human hair than on its surface, and steryl glycoside-like lipids may help bind the cuticle to the cortex.

This study identified a novel recessive mutation in mice causing lethal congenital lamellar ichthyosis, with skin and hair follicle alterations similar to human congenital ichthyoses, linked to a specific genetic defect affecting Fatp4.

This review discusses the role of skin enzymes in drug metabolism and emphasizes the need for models assessing enzyme activity to evaluate the safety and bioequivalence of topical generic drugs, highlighting efforts to standardize testing protocols for transdermal products.

This chapter discusses the structure and function of the skin, detailing its protective roles and the layers that comprise it, but reports no new research findings.

This research reported that liposomal systems made from pig-derived skin lipids enhanced finasteride delivery to hair follicles for treating androgenetic alopecia, showing improved drug deposition, hair length, and growth compared to conventional finasteride forms in vitro.

This study found that while rat models treated with letrozole and dihydrotestosterone exhibit altered sterol, leukotriene, and steroid hormone profiles similar to human PCOS, significant differences remain.

This review highlights that vitamin D is increasingly recognized for its roles in skin health, including treatment of psoriasis, potential applications in conditions like atopic dermatitis, and possible prevention of skin malignancies, as observed in various studies linking low levels to autoimmune skin diseases.

In this review paper, the authors explored the composition and role of lipids in human hair, highlighting their importance for hair texture, moisture retention, and tensile strength, while noting that the understanding of hair lipids' functions remains controversial and requires further research.

This pilot study suggests that a new preparation of platelet-rich plasma gel may improve symptoms and tissue regeneration in patients with en coup de sabre scleroderma, though further trials are needed to clarify its role.

This symposium review highlights past, present, and future developments in skin research, celebrating the work of Prof. Johanna Brandner and Dr. Peter Arne Gerber, without reporting new clinical results.

Botanical extracts are increasingly important in cosmetics and drugs for their effectiveness and safety, backed by traditional use and scientific evidence.

This study evaluated the effects of topical glucocorticoids on human skin using non-invasive imaging methods and observed changes such as alterations in skin layer thickness, keratinocyte size, and collagen and elastin signal intensity.

The researchers reported that TGM2 appears to play a crucial role in sebocyte differentiation and may act as a negative regulator of lipid metabolism in sebaceous glands.

This study concluded that GLCAT14A-C genes are crucial for the function of glucuronic acid transfer to AGPs in Arabidopsis, affecting various growth and reproductive traits such as seed germination and root hair growth.

In this study, methanol extracts from Thai-colored rice fermented with Aspergillus molds exhibited an increase in polyphenolic content and antioxidant activity, outperforming Thai white and Japanese white rice, notably transforming key polyphenols like quercetin and ferulic acid.

This article reviews the influence of vitamin D on various dermatological diseases and suggests that vitamin D supplementation might aid in maintaining skin cell homeostasis; it reports no new clinical results.

This study suggests that synthetic ceramides may promote hair growth by inducing proliferation of human dermal papilla cells through modulation of Wnt/β-catenin and BMP2/4 signaling pathways.

In this study, researchers observed that low levels of fucose-binding lectin staining characterize limbal epithelial progenitor cells, which maintain a high proliferative capacity and may be enhanced by inhibiting fucosylation, offering insights for regenerative therapy of the limbal stem cell niche.

This study identified Sciellin, a new protein precursor to the cornified envelope in keratinocytes, with unique solubility properties hinting at its potential role in envelope assembly.

This study found that the dermal glycosaminoglycan content and mast cell count in rats peaked during the anagen stage of hair growth and decreased during later stages.

Applying pseudoceramide improved skin and hair health.

This study found that distinct glycoconjugate expression patterns in human hair follicle cells suggest complex carbohydrate metabolism, revealing a unique sugar moiety in outer root sheath cells not present in other keratinocytes.