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Introduction:The aim of this study was to evaluate the accuracy of modification of diet in renal disease (MDRD) and Cockraft-Gault (C-G) formulas for estimating GFR in a sample of Iranian adult.Materials and Methods:This study was an analytic cross-sectional study on 54 patients with chronic kidney disease. Glomerular filtration rate was measured by kidney scan via TC99m-labeled diethylenetriaminepentaacetic acid, and it was estimated by MDRD and Cockraft-Gault formulas.Results:The mean of measured GFR and estimated GFR by MDRD and C-G formulas was 61.64 ± 34.26 ml/min, 51.80 ± 25.47, and 54.29 ± 24 ml/min respectively (P-value < 0.001, r = 0.818 and P-value < 0.001, r = 0.847, respectively). Pearson correlation test showed direct linear relationship between sGFR and GFR as estimated by the Cockraft-Gault and MDRD formulas.Conclusion:Based on our results, modification of diet in renal disease (MDRD) and Cockraf-Gault (C-G) formulas are accurate formulas in Iranian adults but they need a correction factor.

Introduction: Introduction: N-terminal pro-B type natriuretic peptide (NT-proBNP) can be used to diagnose cardiac and renal disease. The association of NT-pro BNP with demographic, clinical and biochemical factors in hemodialysis is unclear. Objectives: This study aimed to examine association of NT-pro BNP and mentioned factors in hemodialysis patients. Patients and Methods: This study was conducted on 78 end-stage renal disease (ESRD) patients under hemodialysis. Demographic data, lipid profile and electrolytes were recorded. NT-proBNP was checked simultaneously and its association with mentioned factors were assessed. Results: The average NT-pro BNP level was 890.52±700.87 pg/mL (range: 0.1-3343 pg/mL). Serum level of NT-pro BNP was statistically in association with total cholesterol (P=0.002; r=-0.348), low density lipoprotein (LDL) (P=0.09; r= -0.292), high density lipoprotein (HDL) (P=0.06; r=-0.310) and serum triglyceride (P=0.018; r=-0.269) while having a direct relationship with serum ferritin (P=0.022; r=0.274), alkaline phosphatase (ALP) (P=0.048; r=0.224) and duration of hemodialysis (P=0.005; r=0.321). Conclusion: Lipid profile and ferritin are associated with NT-pro BNP levels. This can reflect possible prognostic role of NT-proBNP among ESRD patients on hemodialysis.

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