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This review discusses the roles of DNA methylation in skin development and regeneration, highlighting its impact on embryonic skin lineage, homeostasis, and potential therapeutic targets, but reports no new clinical results.

This study observed that human anagen hair follicles can grow in vitro when maintained serum-free, with possible implications for understanding hair follicle growth mechanisms.

This review discusses the roles of epithelial-mesenchymal interactions and dermal papilla in hair follicle growth and cycling, but it reports no new clinical results.

This study found that cultured human dermal papilla cells formed into three-dimensional spheres have an increased ability to induce hair follicles from mouse epidermal cells compared to two-dimensional cultures.

This study found that in mouse skin, the activation of stem/progenitor cells is synchronized across different niches during growth, with the glutamate transporter SLC1A3 playing a crucial role in this process.

This study found that diffuse alopecia in HIV-1-infected patients is characterized by higher rates of follicular stem cell apoptosis compared to controls, suggesting a hair cycle disturbance associated with the infection.

This source describes the development, structure, and types of skin appendage tumors, noting both benign and malignant forms, potential associations with syndromes, and categories based on follicular differentiation.

This review discusses advancements in regenerative medicine for hair loss treatments, highlighting stem cell techniques for rejuvenating or creating hair follicles, but provides no new clinical results.

In this study, the authors found that a botanical extract with anti-inflammatory and anti-oxidative properties stabilized hair loss and preserved natural hair pigmentation and strength over six months.

Vitamin D3 and its receptor are important for hair growth, and understanding receptors could help treat hair graying and skin cancer.

This study describes a newly observed "inflammatory vellus involvement" pattern in early frontal fibrosing alopecia, which may lead to misdiagnosis due to the absence of typical histological features.

This review explores androgen metabolism in the skin, highlighting enzyme localization and potential implications for treating androgen-dependent skin conditions, but it reports no new clinical results.

The review concludes that accurate diagnosis of different types of hair loss requires proper biopsy techniques and understanding the hair growth cycle and underlying causes.

This study found that the protein CCN2 in dermal papilla cells is a physiologically relevant suppressor of hair follicle formation by destabilizing β-catenin, which may help maintain stem cell quiescence.

This review summarizes recent progress in human hair follicle bulge cell research, particularly the characterization and isolation of these stem cells, but reports no new experimental results.

This review discusses the structure, functions, and growth cycle of human hair, emphasizing its reduced growth and protective roles, and reports no new research findings.

This study found that rice bran ash extract enhanced melanin biosynthesis-related protein expression in a 3D hair follicle-like tissue model and hair follicle organ culture, suggesting potential for future research in melanogenesis.

This review summarizes major growth factors that promote hair follicle growth, but it reports no new experimental findings.

This research reported that STAT5 activation in the dermal papilla plays a crucial role in triggering anagen entry during post-developmental hair follicle cycling.

This review discusses melanocytes' role in pigmentation, their clinical significance in conditions like vitiligo and hair graying, and highlights current research on hair follicle regeneration without reporting new clinical results.

Marine-derived ingredients show potential for hair health but need more human trials to confirm effectiveness.

Hair follicle stem cells have significant potential for treating various disorders.

This chapter reviews various in vitro and laboratory animal models for studying potential therapies for alopecia and reports no new results.

This study found that the activity of CD73, an enzyme expressed in the hair follicle epithelium, may regulate human hair growth by modulating adenosine production.

This study reported improvement in hair loss lesions in C3H/HeJ mice with alopecia areata following treatment with the CCR5 inhibitor maraviroc, alongside reduced infiltration of specific T cells in the lesions.

This study found that stimulating olfactory receptor OR2AT4 in human hair follicles with Sandalore® may slow catagen development and reduce keratinocyte apoptosis, suggesting potential implications for hair growth management.

This study found that Wnt3a increased beta-catenin signaling and upregulated specific genes in cultured human dermal papilla cells, enhancing their response to PGE2 and potentially aiding hair growth.

This study demonstrated that hair follicle-derived cells can induce hair follicle formation in an in vitro skin organ culture system using human retroauricular skin specimens.

This study identified a high-risk allele in the PLCD1 gene associated with hereditary trichilemmal cyst formation, proposing a monoallelic two-hit mechanism as the underlying genetic pathogenesis.

This study found that red ginseng oil may enhance hair growth and protect skin from UV damage in mouse models by promoting regenerative processes and reducing inflammation.