Low-to-Moderate Arsenic Exposure and DNA Methylation: A Review of Life-Course Evidence and Mechanistic Insights.
Arsenic exposure affects an estimated 94 to 220 million people worldwide, yet most research has centered on high-dose endemic settings, leaving the epigenetic effects of environmentally relevant exposures undercharacterized. This narrative review synthesizes evidence from 68 studies on DNA methylation alterations assoc...