 This study investigated the relationship between advanced glycation end-products, ages, advanced oxidation protein products, AOPPs, and renal function in patients who had undergone kidney transplants. It was found that the levels of both ages and AOPPs were higher in patients with reduced glomerular filtration rates, GFR. Additionally, the levels of ages and AOPPs were correlated with the severity of renal impairment. These findings suggest that ages and AOPPs may serve as potential markers for renal function decline in patients with kidney transplants. This article was authored by Heshmatola Shabazian, Samina Salehupur Bavarsad, Hamidya Goody, and others.