Author(s): Assal HS, Tawfeek S, Rasheed EA, ElLebedy D, Thabet EH
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Abstract Renal tubulointerstitium plays an important role in the development and progression of diabetic nephropathy. The aim of this study was to assess serum cystatin C and 2 renal tubular enzymes, neutrophil gelatinase associated lipocalin (NGAL) and N-acetyl-beta-D-glucosaminidase (NAG), as screening markers for early renal dysfunction in patients with type 2 diabetes mellitus (T2DM). ROC curve analysis showed that urinary NAG is the most sensitive marker of microalbuminuria and early renal damage with sensitivity of 83.3\%, while serum cystatin C was the most sensitive and specific marker of macroalbuminuria and damage progress with sensitivity of 70.8\% and specificity of 83.3\% versus 70.6\% and 83.3\% for uNGAL; and 64.7\% and 66.7\% for NAG, respectively. Our data indicate that urinary NAG is the most sensitive marker for early renal damage in diabetic patients. However, for damage progress, serum cystatin C is the most sensitive and specific marker for follow-up and monitoring renal dysfunction.
This article was published in Clin Med Insights Endocrinol Diabetes
and referenced in Journal of Molecular Biomarkers & Diagnosis