Background: To evaluate the value of basal urinary L-FABP (uL-FABP) excretion as a prognostic indicator of the progression of kidney function impairment in patients with chronic glomerulonephritis (CGN).
Methods: One hundred twenty-three patients with newly diagnosed, biopsy-proven primary CGN were included. In all patients, and in 28 healthy subjects, uL-FABP was measured using an ELISA. Risk factors of the progression of kidney function were evaluated. The patients were in follow-up for at least 5 years.
Results: uL-FABP in the patients with CGN (76.58±17.3 μg/g.cr) was greater than in the healthy subjects. A significant positive correlation between uL-FABP and proteinuria (R=0.501, P<0.01), serum creatinine (R=0.601, P<0.01) were found. Kaplan-Meier analysis revealed that uL-FABP >76.58 μg/g.cr predicts progression of renal function. The cut off values for L-FABP at 119.8 μg/g.cr was found to be more sensitive, area under the curve (AUC) was 0.95.
Conclusion: Urinary L-FABP may be a useful clinical biomarker for monitoring chronic glomerular disease. Urinary L-FABP can help predict the progression of chronic glomerular disease.
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