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This research suggests that both proposed pathways into hair fibers for molecule penetration are valid and complementary, with all fiber structures acting as potential routes for delivering materials.

This study reports that tissue-engineered skin using ES cell-derived epidermal stem cells and collagen sponge successfully healed full thickness skin defects in mice, forming epidermis and structures resembling glands and hair follicles.

This article reviews the challenges in studying keratin proteins and emphasizes the potential of modern proteomic techniques to advance their research, but it reports no new findings.

This study shows that keratin 2e exhibits distinct temporal and regional expression patterns in fetal epidermis, suggesting different regulatory and functional roles from other epidermal keratins.

Adult somatic stem cells could be used for future skin therapies.

This review discusses the embryonic origins and characteristics of various stem cell populations in the skin, but it provides no new experimental results.

This study found that single-nucleus RNA sequencing identified more relevant keratinocyte clusters and specific markers than single-cell RNA sequencing, offering a new perspective on skin cell differentiation and function.

This review discusses the roles of dermal white adipose tissue (dWAT) as an insulator, antibiotic, and regenerative tissue, highlighting its importance in systemic metabolism and immune function, but reports no new clinical results.

The document concludes that scalp health is influenced by complex factors affecting sebaceous glands, including hormones, aging, and various substances.

This study found that trichocytic cytokeratins, typically found in hair, are also present in nails, filiform papillae of the tongue, and the epithelial reticulum of the thymus.

This chapter reviews the intimate interaction between skin and hair, highlighting potential allergic reactions from hair products, without providing new clinical results; the authors emphasize the importance of considering this interaction in hair care.

This study identified a novel skin site called the follicular epidermis that is prone to cancer, with unique Axin2+ stem cells regulating its homeostasis. The findings suggest current therapeutic approaches may need reconsideration due to new insights into obstruction mechanisms at this site.

This study found that pubic hair from Korean males has a thicker cuticle layer with more scales compared to scalp hair, offering better protection against chemical damage, and hypothesizes this evolved as a defense mechanism against exposure to urine and ammonia.

The researchers reported that basement membrane heterogeneity, especially laminin α5 composition, plays a critical role in distinct inter-tissue interactions and hair cycle regulation in mouse hair follicles.

This source reports that understanding how skin cells and immune cells interact may lead to better treatment options for inflammatory skin diseases like psoriasis and atopic dermatitis, emphasizing the role of epithelial-immune microenvironments in disease pathogenesis.

This article discusses the skin's role as both a protective barrier and a major source of antioxidants, noting its vulnerability to infections and systemic manifestations, but reports no new clinical findings.

This review discusses the cutaneous side effects of targeted anticancer therapies, such as rashes and hair changes, but presents no new clinical results.

This review summarizes recent advances in understanding intermediate filament structure and their implications for pathological mutations and human diseases, but it reports no new experimental results.

This report describes a case of trichostasis spinulosa, a condition with pruritic, black papules on the face caused by keratotic plugs with embedded vellus hairs.

This study found that adhesion molecules, specifically integrins and cadherins, are crucial for the down growth and proliferation of hair follicles in human embryos and fetuses.

Hair follicles grow hair and release it through the skin.

This study identified dual epithelial and mesenchymal traits in dermal sheath cells during wound repair, suggesting they could be targeted to enhance healing.

In this article, the authors compile various dermatological conditions that metaphorically reference animal-related visuals, such as "buffalo hump" in HIV-associated lipodystrophy or "leonine facies" in lepromatous leprosy, to enhance learning through mnemonic and visual associations.

This study found that the interdigital gland of Vembur sheep has larger secretory lobules in males than females, producing various compounds for chemical communication and foot protection.

This review discusses autoimmune skin disorders, including lupus erythematosus and scleroderma, and their common treatments, reporting no new clinical results.

Activin increases skin tumor formation, skin Tregs help hair growth, lymph-node removal doesn't improve melanoma survival, cells can revert to stem cells in wound healing, and skin bacteria produce peptides that may treat infections.

This article reviews the role of keratins in epithelial tissues, emphasizing their importance for regular function, and reports no new experimental results.

This study found that the stratum corneum of scalp skin in humans has distinct functional characteristics compared to the facial skin and volar forearm, including higher hydration levels and intermediate epidermal turnover rates.