Additionally, in a study conducted by Yiğit Kaya et al. [38] among 38 T2DM patients with a disease duration of not less than 5 years, they found similar uNGAL levels in diabetic patients and healthy subjects, stating that urinary NGAL does not have a potential diagnostic value for the early detection of DN. This evidence concerns the gene LCN2 and type 2 diabetes mellitus.