The median weight, waist circumference, BMI, systolic and diastolic blood pressures, blood leukocyte and platelet counts, blood urea, creatinine, eGFR, AST, ALT, and serum lipid levels of the diabetes mellitus patients with diabetic retinopathy were not statistically different from those of the subjects without diabetic retinopathy (p > 0.05 for all). This evidence concerns the gene GPT and diabetic retinopathy.