The Sirtuins, Oxidative Stress and Aging: An Emerging Link
This review explores the role of sirtuins, a family of NAD⁺-dependent deacetylases, in modulating oxidative stress and aging. Sirtuins, particularly SIRT1 and SIRT3, enhance cellular resistance to oxidative damage by deacetylating key transcription factors and enzymes involved in antioxidant defense, such as FOXO proteins and SOD2. Caloric restriction activates sirtuins,