Reduction in urine C-peptide clearance rate after metabolic control in NIDDM patients

Endocrinologia Japonica
S D HsiehT Kuzuya

Abstract

One hour urine C-peptide and creatinine clearance rates were determined simultaneously in 25 hospitalized patients with non-insulin-dependent diabetes mellitus (NIDDM) undergoing sulfonylurea and/or diet treatment. The studies had been performed after an overnight fast on the second day of admission and on a day soon before discharge, with intervals of 18.9 +/- 7.0 days. Fasting plasma glucose (FPG) and hemoglobin A1c (HbA1c) values decreased significantly at the second examination as compared to the initial values (FPG: 101 +/- 20 mg/dl vs. 161 +/- 47 mg/dl, p less than 0.005; HbA1c: 7.3 +/- 1.5% vs. 8.4 +/- 1.7%, p less than 0.005). The urine C-peptide clearance rate also decreased significantly after metabolic control (0.75 +/- 0.36 l/hr vs. 1.06 +/- 0.54 l/hr, p less than 0.005). Meanwhile, the urine creatinine clearance rate tended to decrease, but the difference was not significant (3.69 +/- 2.04 l/hr vs. 4.87 +/- 2.98 l/hr) at the second examination. The data suggest that the urine C-peptide clearance rate is susceptible to the effects of the fluctuation of metabolic states in NIDDM patients. In order to use urinary C-peptide for a follow up study of pancreatic B-cell secretion, the changes in C-peptide clearance under v...Continue Reading

Citations

Feb 19, 2013·Diabetic Medicine : a Journal of the British Diabetic Association·A G Jones, A T Hattersley
May 1, 1990·Diabetes Research and Clinical Practice·Y MurayamaK Yamashita

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