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This study found that silencing clock genes BMAL1 or PER1 in human hair follicles increased melanin content and melanocyte activity, suggesting these genes influence pigmentation.

Bullous pemphigoid can look like erythema multiforme, so awareness is needed for proper treatment.

Vitamin B12 deficiency can cause skin darkening and increased blood vessels, but treatment can improve symptoms.

This study found that BMP signaling is involved in regulating melanogenesis, pigment transfer, and melanocyte migration, contributing to our understanding of skin pigmentation mechanisms.

This study observed significant skin changes, including epidermal thickening and pleomorphic keratinocytes, in rats after subchronic UVB irradiation, highlighting specific reactions in the dorsal skin.

This study identified histologic lesions and a defect in adhesion molecules causing hair loss in mice with the bal mutation, linked to a mutation in the desmoglein 3 gene.

Bimatoprost can cause longer, thicker, darker eyelashes and eyebrows.

In this case report, a 60-year-old woman with eyebrow hypotrichosis experienced significant and lasting eyebrow growth after daily use of bimatoprost 0.03% solution, highlighting its potential as an effective treatment for eyebrow hair restoration.

This abstract contains navigation and subscription information for JAMA Dermatology and reports no new clinical findings.

Vitamin B12 deficiency can cause skin darkening and white hair, but it's reversible.

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.

This case report describes a patient with skin and nail hyperpigmentation and premature gray hair due to vitamin B12 deficiency, which were reversed after treatment with cyanocobalamin.

This study found super-contraction in the guard hairs of fur-bearing animals, likely due to oxidation in living animals, primarily affecting white and red foxes without prior heat or chemical treatment.

This study found that injecting various hormones or hormone-cholesterol mixtures into Willow Ptarmigan and White-tailed Ptarmigan led to the growth of pigmented feathers instead of the usual white winter feathers, suggesting hormonal influence on plumage color changes.

In this study, modulating Tyrosinase expression altered mouse coat color by affecting melanosome accumulation, indicating that melanosome maturity plays a role in determining skin and hair color beyond total melanin content.

This study found that changes in the expression of the Agouti gene contribute to the pale pigmentation in beach mice, with implications for melanocyte development and localization.

This study observed that skin pigmentation significantly attenuates bioluminescent signals in C57Bl/6 mice, complicating quantitative optical imaging and requiring consideration in experimental design.

This study analyzed gene expression changes during the autumn coat color change in mountain hares and found conserved gene regulation with snowshoe hares, highlighting its role in seasonal camouflage adaptation.

In this report, a unique case of premature graying in a 32-year-old male, with onset at age 15 and a distinctive fractal pattern, was presented, highlighting the need for further investigation into its potential causes and mechanisms.

This article outlines a targeted approach for optimal upper facial rejuvenation in male patients but presents no new clinical findings.

This study suggests that the prevalence of red beards in individuals with dark hair may be explained by Thayer’s Theorem of countershading.

BrdU speeds up hair follicle aging and reduces hair quality.

This study in mutant mice found that Bmpr2 and Acvr2a are individually redundant, but together essential for normal hair follicle development, with their reduction causing rapid hair cycling and graying.

This article explains the role of melanins in hair color, focusing on their production by melanocytes, but presents no new research findings.

In this animal study, pigs on a biotin-deficient diet showed significant hair loss, weak and brittle claws, and skin lesions after 8–10 weeks, with tissue necrosis observed microscopically after 15 weeks.

The girl's regrown brown hair had less of certain pigments than her original black hair.

This report describes a case in which intramuscular cyanocobalamin treatment reversed skin and nail pigmentation changes and premature gray hair caused by vitamin B12 deficiency due to pernicious anemia.

This article reviews the aging process of sebaceous glands, highlighting the role of intrinsic and extrinsic factors on their degradation and reporting no new clinical findings.

This review discusses the mechanisms by which sunlight exposure aggravates hair aging and highlights the role of hair pigments in providing photochemical protection, reporting no new results.

This study found that the Dun camouflage color in horses is due to TBX3 expression, which causes uneven pigment deposition, whereas non-dun coat colors result from regulatory mutations affecting TBX3 expression.