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Subject Area

Dermatology

Article Type

Original Study

Abstract

Objective The aim was to study the role of neutrophil gelatinase-associated lipocalin (NGAL) in diabetic nephropathy patients with type 2 diabetes. Background Due to the high morbidity and mortality associated with diabetic nephropathy, it is important to establish a diagnosis and initiate therapy as soon as possible. Patients and methods This observational study was conducted on 88 subjects who were divided into four groups: Group 1 included 22 healthy individuals; group 2 included 22 type 2 diabetic patients with normoalbuminuria;, group 3 included 22 type 2 diabetic nephropathy patients; and group 4 included 22 nondiabetic patients with chronic kidney disease (CKD). All patients were admitted to the Internal Medicine Department at Menoufia University Hospital in the period from 20 December to 13 March 2019. Complete history, examination, and investigations urea, creatinine, fasting blood glucose, postprandial blood glucose, HbA1C, albumin/creatinine ratio, estimated glomerular filtration rate, and urinary NGAL were investigated for all subjects. Results Urea, creatinine and albumin/creatinine ratio were statistically significantly increased in diabetic nephropathy groups (145.30 ± 57.93), (3.95 ± 1.57), (201.27 ± 50.04) than in the diabetic group, while estimated glomerular filtration rate was significantly decreased among CKDs (23.64 ± 8.57) and diabetic nephropathy group (30.65 ± 14.34) than the diabetic (174.35 ± 86.13) and control groups (183.27 ± 44.17). Also, the level of NGAL was significantly increased in diabetic nephropathy groups (474.48 ± 308.22) and CKDs (367.37 ± 272.63) than diabetic groups (36.65 ± 28.30) and the control group (22.47 ± 21.16). Conclusion Diagnosis of diabetic nephropathy is based on the rise of creatinine and urea, and albumin/creatinine ratio with a decrease in estimated glomerular filtration rate. NGAL is a marker of CKD and any causes affecting the kidney. Cutoff point for NGAL was greater than 45 in patients with diabetes mellitus and greater than 30 in patients without diabetes, which were the best cutoff point for early detection of diabetic nephropathy.

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