Glycated Haemoglobin and Fructosamine in Non-Diabetic Subjects with Chronic Renal Failure

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Abstract
Measurements of glycated haemoglobin by electroendosmotic and chromatographic methods, fructosamine, and fructosamine:albumin ratio were made in 91 non-diabetic subjects with chronic renal failure managed conservatively (n = 25), by continuous ambulatory peritoneal dialysis (n = 22), by haemodialysis (n = 22), or by renal transplantation (n = 22). Results were compared with those in a control group of 43 non-diabetic subjects with normal renal function. Mean glycated haemoglobin measured by electroendosmosis was significantly greater in all groups with chronic renal failure except the transplant group. Mean glycated haemoglobin measured by affinity chromatography was not significantly different from controls in any of the groups with chronic renal failure. No difference in mean fructosamine concentration was detected in the transplant or conservatively managed groups compared to controls, but values were significantly lower in the CAPD group, and greater in the haemodialysis group predialysis. Post-haemodialysis samples showed a significant reduction in mean fructosamine concentration when compared with prehaemodialysis samples. Fructosamine:albumin ratios were elevated in all groups of patients with renal failure, with the exception of the transplant group. Of the four indices of glycaemic control considered in this study, only glycated haemoglobin measured by affinity chromatography appears to be unaffected by chronic renal failure.

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