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Low plasma adiponectin levels predict increased urinary albumin/creatinine ratio in type 2 diabetes patients

  • Nephrology – Original Paper
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An Erratum to this article was published on 24 April 2012

Abstract

Background

Experimental studies have shown that adiponectin has antiproteinuric and nephroprotective effects. The purpose of the study was to assess the value of plasma adiponectin as a predictor of proteinuria in type 2 diabetes (T2D) patients.

Methods

In this one-year prospective follow-up study, we included T2D patients with positive visual test for microalbuminuria (Micral) and negative visual test for proteinuria. Exclusion criteria were: glomerular filtration ratio (GFR) < 30 ml/min, acute infection/inflammation, uncontrolled hypertension, and atherosclerotic complications. The main outcome measure was the change in urinary albumin/creatinine ratio (UACR) after 1 year follow-up (Δ UACR).

Results

Fifty-six patients (66% males) completed the study. Their initial mean UACR was 81.58 ± 26.42 mg/g and mean GFR was 81.15 ± 3.96 ml/min. At baseline, simple regression disclosed significant correlations between UACR and plasma adiponectin (r = 0.54, P = 0.00002) and GFR (r = −0.28, P = 0.03); in multiple regression analysis, plasma adiponectin remained the only predictor of UACR (P = 0.00007). Baseline plasma adiponectin was significantly correlated to body mass index (r = −0.28, P = 0.04), waist circumference (r = −0.27, P = 0.05), HDL cholesterol (r = 0.35, P = 0.01), and LDL cholesterol (r = 0.27, P = 0.04). Baseline plasma adiponectin significantly correlated in simple (r = −0.38, P = 0.004) and multiple regression (P = 0.04) to Δ UACR. When patients were divided according to Δ UACR in nonprogressors (Δ UACR < 0) and progressors (Δ UACR > 0), logistic regression showed that baseline GFR (OR = 1.04, CI95%: 1.00–1.09, P = 0.04) and plasma adiponectin (OR = 1.16, CI95%: 1.02–1.32, P = 0.02) were the only factors that predicted whether the patient would be a progressor or not.

Conclusion

In T2D patients, lower plasma adiponectin levels seem to be predictive of increased UACR.

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Acknowledgments

This work was funded by CNCSIS Romania Idei 1167/2008 grant.

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Correspondence to G. Kacso.

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Kacso, I., Lenghel, A., Bondor, C.I. et al. Low plasma adiponectin levels predict increased urinary albumin/creatinine ratio in type 2 diabetes patients. Int Urol Nephrol 44, 1151–1157 (2012). https://doi.org/10.1007/s11255-011-0064-1

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  • DOI: https://doi.org/10.1007/s11255-011-0064-1

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