SIRT1 levels in early AMD (0.332 ng/mL (1.471)) vs. controls (0.288 ng/mL (0.343)), p = 0.465; SIRT1 levels in exudative AMD (0.171 ng/mL (0.206)) vs. controls (0.288 ng/mL (0.343)), p = 0.547; SIRT1 levels in early AMD (0.332 ng/mL (1.471)) vs. exudative AMD (0.171 ng/mL (0.206)), p = 0.217. The gene discussed is SIRT1; the disease is age-related macular degeneration.