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, 48 (6), 1088-92

Increased Plasma Adiponectin Concentrations Are Associated With Microangiopathy in Type 1 Diabetic Subjects

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Increased Plasma Adiponectin Concentrations Are Associated With Microangiopathy in Type 1 Diabetic Subjects

S Hadjadj et al. Diabetologia.

Abstract

Aims/hypothesis: Insulin resistance is related to an increased risk of diabetic retinopathy and nephropathy in type 1 diabetes. Patients with insulin resistance and/or macrovascular disease have abnormally low levels of adiponectin. The aim of this study was to investigate the relationships between adiponectin and renal and retinal diabetic complications in type 1 diabetic patients.

Methods: In this 6-year prospective follow-up observational study, we evaluated the severity of retinopathy at baseline and determined the incident risk of microalbuminuria in 126 normoalbuminuric patients with type 1 diabetes. Each patient was age- and sex-matched to two non-diabetic control subjects.

Results: Plasma adiponectin concentrations were significantly higher in diabetic subjects than in control subjects (p < 0.0001). The adiponectin concentration was significantly higher in patients with severe diabetic retinopathy than in those without (39.1+/-14.0 vs 29.0+/-13.0 microg/ml, p = 0.0005). The 18 patients who developed persistent microalbuminuria had higher adiponectin concentrations than the other patients (35.8+/-14.5 vs 30.6+/-13.7 microg/ml). Increased adiponectin concentrations were independently associated with the occurrence of microalbuminuria (p = 0.0158) after adjustment for baseline urinary albumin concentration (p = 0.004), sex (p = 0.0054), blood pressure (NS) and metabolic control (NS).

Conclusions/interpretation: The elevated adiponectin concentrations observed in subjects with microvascular disease may indicate an altered regulation of this adipocytokine in patients with complications associated with type 1 diabetes.

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