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LED light helps human hair root cells grow and prevents them from dying by activating specific growth pathways.

New materials and methods could improve skin healing and reduce scarring.

This study found that 2-hydroxy-1,4-naphthoquinone was the most effective inhibitor of steroid 5α-reductase, showing stronger inhibition than avicequinone C in HaCaT cell assays.

This review describes the hair follicle's structure, particularly its role as a stem cell niche, and discusses its potential application in skin tissue engineering, but does not present new research findings.

This study found that dermal papilla cells can induce hair follicle regeneration and maintain growth in vitro and in vivo, with higher ET-1 and SCF expression enhancing this ability.

This review discusses the regeneration capabilities of various vertebrate tissues, focusing on the unique ability of certain species to regenerate teeth and lens, and reports no new results.

Wound healing is a complex process involving different cells and stages, leading to scar tissue formation and strength increase over time.

This case report describes the dermoscopic features of two cases of the tumor of the follicular infundibulum, contributing new insights as they had not been previously detailed in the literature.

This study identified the dermal sheath as a key component of the hair follicle niche, essential for outer root sheath regression during the hair cycle, highlighting its importance in hair follicle support and regulation.

This study found that epithelial stem cells from umbilical skin can differentiate into various cell types, suggesting potential roles in epidermis and hair cell formation.

This study developed a three-dimensional model for studying hair follicle development, showing that immortalized dermal papilla cells retain certain differentiation activities and can induce tubule formation in vitro.

This study found that cultured dermal papilla cells can induce hair follicle regeneration and sustain hair growth both in vivo and in vitro, with their effectiveness linked to specific protein expression levels.

In this study, the researchers reported that altering β-catenin signaling in a transgenic mouse model led to changes in skin cell fate, notably converting hair follicle cells into epidermal cells and forming cysts instead of follicles.

This study found that in a transgenic mouse model, a modified form of β-catenin inhibited normal hair follicle development and promoted epidermal cyst formation, revealing distinct effects on Wnt signaling.

This study documents that trichohyalin acts as a multi-functional cross-bridging protein in the inner root sheath of mouse hair follicles, enhancing mechanical strength by linking keratin filaments to the cell envelope.

This review discusses current concepts on the role of retinoids in keratinization and does not report new clinical results; the authors emphasize the complexity of retinoid effects on skin.

In this study using mice, simultaneous deficiencies in claudin-1 and claudin-3 were associated with hair loss and altered hair follicle architecture during the telogen phase, suggesting a role in hair retention.

This editorial synthesizes research on UV-induced skin damage, highlighting potential therapeutic strategies by mapping cellular changes, identifying molecular mechanisms, demonstrating melanocyte protection, and proving combination therapy effectiveness in conditions like vitiligo.

This review highlights the wide-ranging clinical uses of autologous fat transplantation in regenerative medicine, noting its advantages such as easy harvesting, tissue integration, and stem cell abundance, and discusses its future in personalized therapeutic regimens for tissue repair.

This study in adult male albino rats reported that human umbilical cord blood-derived mesenchymal stem cells were more effective than minoxidil in promoting hair growth for androgenic alopecia, observing superior outcomes in hair follicle metrics.

This study found that keratin-based hydrogels derived from human hair improved nerve regeneration in a mouse model by enhancing Schwann cell activity and outperforming autografts.

In this study, researchers at Johns Hopkins University found that Keratin 17 plays a signaling role in cell growth during a wound response by aiding mTOR pathway activation, beyond its structural functions.

This review discusses the advancements in biologic skin substitutes for wound treatment and their potential in enhancing cutaneous regeneration but reports no new clinical results.

This article offers a viewpoint on hidradenitis suppurativa pathogenesis, suggesting that impaired Notch signalling from γ-secretase mutations may drive inflammation and link the condition to other Th17-driven diseases.

The study reported that combining the Follicular Closing Technique with the Franz diffusion cell is a valuable method for investigating follicular caffeine penetration in vitro, though kinetics differ from in vivo results.

This review discusses the regenerative processes of lizard tails, particularly focusing on the diversity in blastema development across different species, and reports no new findings.

This study found that the PSEN1-P242LfsX11 mutation in hidradenitis suppurativa influences cytokine and chemokine expression in macrophages, potentially affecting inflammatory responses.

This research details a robust method for isolating hair follicle stem cells and epidermal keratinocytes from mouse hair follicles using fluorescence activated cell-sorting technology.

This study found that the absence of sebaceous glands may be an early factor in the development of keratosis pilaris, leading to hair shaft and skin barrier abnormalities, independent of filaggrin mutations.

This study developed a hair-on-a-chip model that supports the maturation of hair-follicle-like tissue under long-term culture conditions, suggesting its promise for studying hair regeneration and testing scalp-targeted therapies.