SERUM MAGNESIUM LEVEL IN DIABETIC RETINOPATHY - A CROSS SECTIONAL STUDY
Background: Among different complications of diabetes, ddiabetic retinopathy is one of the leading causes of blindness in the world. Increase in the frequency of lower serum magnesium levels have been reported among patients with diabetes. Materials and methods: A total of 120 subjects were included in this study and divided into 3 groups. The study groups consisted of 40 patients that are type 2 diabetes with retinopathy and 40 patients with type 2 diabetes without retinopathy and control group consisted of 40 healthy subjects respectively. Both cases and controls were subjected to estimation of biochemical parameters. Results: Among the study population, (80) 66.67% participants were cases and another (40) 33.33% participants were controls. Among the people who had mild NPDR, the median Mg was 1.90 (IQR 1.80, 2.00). It was 1.90 (1.70, 2.00), 1.75 (1.67, 1.92), 1.8 (1.69, 2.0) and 2.10 (1.90, 2.20) among people with DM retinopathy moderate NPDR, severe NPDR, Proliferative retinopathy and no retinopathy respectively. The difference in the Mg across DM retinopathy was statistically significant (P Value 0.008). The difference between the values among both the case and control groups for certain parameters such as SBP, FBG, PPBG, HbA1c, Magnesium, Urea, and Creatinine were found to be statistically significant. Conclusion: Serum magnesium levels were significantly lower in patients with diabetic retinopathy compared to diabetics without complications and control group. Keywords: Diabetes mellitus, Diabetic retinopathy, Magnesium