Hyperuricemia As a Predictive Marker for Progression of Nephrosclerosis: Clinical Assessment of Prognostic Factors in Biopsy-Proven Arterial/Arteriolar Nephrosclerosis

Overview

Journal J Atheroscler Thromb

Date 2016 Oct 28

PMID 27784849

Citations 18

Authors

Kumiko Momoki

Hiroshi Kataoka

Takahito Moriyama

Toshio Mochizuki

Kosaku Nitta

Affiliations

Soon will be listed here.

Abstract

Aim: The influence of serum urate on kidney disease is attracting attention, but the effects of uric acid (UA) on nephrosclerosis have not been elucidated.

Methods: We reviewed data from 45 patients diagnosed with arterial/arteriolar nephrosclerosis. The renal outcomes of the arterial/arteriolar nephrosclerosis patients were assessed by performing logistic and Cox regression analyses. A Kaplan-Meier analysis was used to evaluate the impact of hyperuricemia (HU) on kidney survival. The renal outcomes of patients with and without HU were compared by using a propensity score-matched cohort.

Results: The logistic regression models showed no significant differences in renal outcomes, according to baseline parameters or follow-up parameters, except the serum UA value and body mass index (BMI). Baseline serum UA level had the highest odds ratio (OR) for estimated glomerular filtration rate (eGFR) decline (OR, 1.86; 95% confidence interval (CI), 1.12 to 3.45), among the parameters assessed. In the multivariate Cox regression analysis, HU (UA ≥8.0 mg/dL) (P=0.01) and BMI (P=0.03) were significantly associated with a ≥50% eGFR decline or ESRD. The Kaplan-Meier analysis in the propensity score-matched cohort indicated that the renal survival rate of the group of arterial/arteriolar nephrosclerosis patients with HU was significantly lower than that of the group without HU (log rank, P=0.03).

Conclusion: The results of this study suggest that the baseline serum UA value can serve as a renal outcome predictor in arterial/arteriolar nephrosclerosis patients.

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