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This study found that compromised antioxidant activity in gray hair follicles affects both mature melanocytes and their immature precursors, linked to down-regulation of melanogenesis-related genes.

This review discusses the role of oxidative stress in hair greying and suggests that understanding melanocyte susceptibility at different follicular locations may help develop therapies for preventing and reversing the process; it reports no new experimental results.

This article reviews the historical and scientific perspectives on the phenomenon of stress-induced changes in hair color and reports no evidence supporting the idea that holding or resigning from political office accelerates human aging or hair graying.

This study found that both acute and chronic exposure to nano polystyrene in laboratory rats disrupted hematological function, increased oxidative stress, and led to behavioral and physiological changes, like anemia-like effects and neurological disruptions, suggesting its potential as a cumulative toxicant.

This study found that topical olive oil may protect mice skin from damage caused by electromagnetic radiation, particularly when applied before exposure, by mitigating oxidative, inflammatory, and heat shock stress factors.