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This study reviews melatonin's diverse roles in dermatology, highlighting its potential to protect skin from UV damage and oxidative stress, enhance DNA repair, and influence hair follicle cycling, suggesting therapeutic applications in skin care and hair renewal.

This article reviews literature indicating that specific dermatoses manifest differently in black skin compared to lightly pigmented skin, with some conditions more prevalent or unique to black skin, emphasizing the need for tailored clinical recognition and management.

This study identified more than 100 genetic loci associated with hair color variation in Europeans, explaining a significant portion of the trait's heritability and advancing understanding of hair pigmentation.

This paper introduces a new understanding that the human hair follicle medulla lacks metabolic activity for H2O2 breakdown, indicating that H2O2 decomposition occurs primarily in the cortical areas.

This article reviews practical approaches for managing dermatologic conditions in patients with skin of color and reports no new clinical findings.

This study demonstrates that SDF-1/CXCL12 and CXCR4 signaling play a crucial role in directing the migration and positioning of melanoblasts in mouse hair follicle formation.

This study analyzed techniques to create the popular "sun-kissed" hair look on dark-to-medium blonde (Level 5–6) tones, concluding that a 2–3 level differential, targeted placement across three cranial zones, and acidic glossing are essential for optimal results.

This study found that α-MSH acts as a modulator of inflammatory and fibrogenic responses in human fibroblastic skin cells, indicating potential therapeutic options for fibrotic skin disorders and inflammatory diseases of the hair follicle.

In this study, researchers observed that Melan A, a melanocytic marker, was significantly expressed in hair follicles of alopecia areata patients and correlated with immune infiltrates, suggesting melanocytes might contribute to the autoimmune response in this condition.

This study found that TPA was significantly more effective than mezerein in inducing dark basal keratinocytes in mouse skin, which may be important in early tumor promotion stages.

This research found that melatonin plays a protective and modulatory role in skin biology, reducing UV damage and chemotherapy-induced hair follicle cell harm in human organ culture models.

This study generated a Dct-H2BGFP mouse model that allows for effective identification and isolation of melanocytic cells in vivo, facilitating research into their molecular and biological properties.

This study found that Carthamus tinctorius floret ethanolic extract stimulated melanogenesis in B16F10 murine melanoma cells without cytotoxicity, suggesting its potential as a treatment for gray hair.

Senescent melanocytes in nevus skin boost hair growth.

This review discusses the potential benefits of topical melatonin in aesthetic dermatology, including its antioxidant and protective properties for skin aging and photoaging, while also noting varying strengths of evidence across different skin conditions.

This study found that co-culturing adipose-derived stem cells with hair follicle-derived melanocytes, combined with narrowband UVB, significantly improved pigmentary response in treating stable, resistant vitiligo compared to non-UVB treatments.

This case report describes a strong dermoscopic and histopathological correlation in lichen nitidus, helping differentiate it from other similar conditions.

This study found that female Holdobaggy goslings have higher melanin content in their dorsal plumage than males, suggesting that initial plumage color can be used for sex identification.

In this study, researchers identified a new dominant mutation in Hairless mice, called Pied, resulting from a deletion in the Adam10 gene, which causes freckle-like skin pigmentation by inhibiting melanocyte expansion.

In this study, voglibose, commonly used for diabetes management, was found to reduce melanin synthesis and inhibit melanogenic signaling pathways in B16F10 melanoma cells, suggesting it could be repurposed for treating hyperpigmentation disorders with confirmed topical safety in human tests.

This review found that platelet-rich plasma shows potential in improving melasma, though its overall benefit varies across different treatment methods and may not enhance results when combined with certain other treatments.

This study found that stable regeneration of pigmented hairs in mice after severe wounding can occur when the wound is made during the anagen stage, influenced by Wnt and Kit signaling pathways.

This review discusses advancements in understanding the biology and pathology of the epidermis and hair follicles, reporting no new clinical results but highlighting the synergy between research and dermatologic patient care.

Different races and genders have unique skin and hair issues, requiring specialized care and more research for effective treatment.

Patients with melanoma who saw dermatologists and were from higher-income areas were more likely to have follow-up visits, which was linked to lower mortality.

This study found that overexpressing the PML protein in transgenic mice decreased skin tumor occurrence and delayed their progression, highlighting PML's potential role in influencing keratinocyte growth and differentiation.

This study reviews the complex keratinization process in the epidermis, detailing how various factors regulate keratinocyte differentiation and emphasizing the importance of understanding this process for the pathogenesis of skin disorders like ichthyoses and psoriasis.

This study focused on the ultrastructural and immunohistochemical aspects of dermal mast cells in systemic mastocytosis and their interaction with the epidermal melanin unit.

This study found that a 6-month treatment with 2% palmitoyl tetrapeptide 20 showed no significant improvement in reducing hair graying in patients, despite theoretical potential.