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This report documents the first case of congenital hypotrichosis in a cervid, observed in a 4-month-old male white-tailed deer fawn in South Dakota.

This study investigated the genetic basis of coat color variation in cattle using skin transcriptome and whole-genome analyses, identifying the ASIP gene as a significant determinant that is differentially expressed and under strong positive selection in black and brown cattle breeds.

The book discussed in this abstract is a comprehensive guide to hair analysis, detailing the latest methods and applications across various fields such as toxicology and drug monitoring, designed for both newcomers and experts in the field.

This editorial reviews how photobiomodulation therapy might effectively treat both hyperpigmentation and depigmentation skin disorders, but reports no new clinical results.

This case report describes the unexpected hair repigmentation surrounding a scalp tumor in a 74-year-old man, suggesting a potential link between the carcinoma and changes in hair pigmentation.

This study found that the "Hair Medulla Care" treatment allows various substances to penetrate hair more effectively, suggesting potential applications for enhancing hair coloring, care, and perming processes.

This study found that Philippines stingless bee propolis extract promotes hair growth in mice by activating the Wnt/β-catenin signaling pathway and stimulating hair follicle development.

In this study, researchers found that a PER3 gene SNP may be pathogenic for a new subtype of dyschromatosis universalis hereditaria, especially when combined with a SASH1 mutation.

The researchers concluded that baicalin may promote hair growth and follicle proliferation by activating the AKT pathway, suggesting its potential as a treatment for alopecia.

This article reviews the steps and methods involved in preparing skin tissues for three-dimensional volumetric imaging, highlighting its potential to provide detailed insights into skin structure not possible with traditional 2D histology, but reports no new findings.

This study found that Phaeodactylum tricornutum extract enhanced hair follicle cell proliferation, indicated by increased keratin and ERK1/2 signaling, suggesting its potential for hair care applications.

This preliminary study found that Melandrium firmum extract may promote hair growth and inhibit 5α-reductase, suggesting potential as a candidate for treating androgenetic alopecia.

In this study with C57BL/6 mice, SHJ extract was associated with increased hair growth and density, suggesting potential use in hair care cosmeceuticals, while also enhancing melanin production in melanoma cells.

This review discusses various forensic applications of hair analysis, such as species identification and drug addiction testing, and reports no new study results.

This study found that non-cutaneous melanocytes in mice are less sensitive to Kit signaling compared to cutaneous melanocytes, showing dependence on ET3 and HGF signaling.

This study investigated the pigments and cells causing discoloration in stasis dermatitis but did not clarify the role of melanin or melanocytes in this condition.

In this study, the brown skin of guinea pigs exhibited higher levels of certain biochemical markers related to melanogenesis compared to black and white skin, with distinct differences in ascorbic acid utilization and protein concentrations observed between regions.

This review found that lip aging differs significantly from facial aging and suggests focusing on distinct anti-aging strategies for lips, considering gender differences and unique physiological characteristics.

This study explored the role of plant-derived monomers in reversing grey hair, finding that compounds like fraxinol and morin may stimulate melanin production and tyrosinase activity, suggesting potential therapeutic benefits, although further evaluation of their safety and efficacy is needed.

This case report describes promising results in treating poliosis circumscripta with exosomes and fractional picosecond laser, showing significant hair regrowth and repigmentation, though spontaneous repigmentation cannot be ruled out.

This study found that 830 nm LED light effectively treated post-inflammatory erythema and hyperpigmentation, while both 830 nm and 590 nm LEDs prevented post-inflammatory erythema.

This article reviews dermatological research on black skin, emphasizing its unique physiological characteristics and common conditions like acne and eczema, and suggests more focus is needed on its structural differences and clinical responses.

In this case study, the researchers reported a rare incidence of bilateral hyperpigmented macules on a patient's lower legs, possibly due to cyclophosphamide, suggesting that this chemotherapy drug may directly stimulate hair follicles to cause skin discoloration.

In this study, Asian breast cancer patients undergoing taxane-based chemotherapy in the adjuvant treatment group reported significantly increased hair loss, higher melanin index, and more wrinkles compared to other treatments, while most neoadjuvant group patients saw hair loss reversed six months post-surgery.

This study reported successful repigmentation of perioral vitiligo using upper hair follicle transplantation combined with a 308 nm excimer laser, without undesirable hair growth in the treated areas, offering a potential approach for treating vitiligo cases unresponsive to traditional melanocyte transplantation.

In this review, researchers examined the current status and advancements in using long-pulse alexandrite lasers for treating hair removal, vascular lesions, and pigmented lesions, aiming to guide clinical use based on how the laser's 755nm wavelength is absorbed by melanin and hemoglobin.

This study found that stress-induced inactivation of the enzyme Dicer in melanocytes can cause premature hair greying by preventing proper melanocyte placement and melanin transfer in mice, suggesting the Dicer-miR92b-ItgaV pathway as an important link between stress and grey hair.

This review summarizes the biological process of melanogenesis and evaluates natural skin-whitening treatments based on their mechanisms affecting melanin production, aiming to inform on the effects and awareness of skin-bleaching creams.

This study underscores the use of hair analysis in forensic toxicology, highlighting its ability to detect drugs such as opioids and amphetamines, while noting limitations related to hair growth cycles, result interpretation, and cost of techniques.

This study found differences in melanin content and gene expression in skin under black and white hair of giant pandas, providing a basis for further research on hair color distribution and skin diseases.