Hyperuricemia Accompanied with Changes in the Retinal Microcirculation in a Chinese High-risk Population for Diabetes

YZ Yuan, Kamran Ikram, SF Jiang, HD Lin, LM Ren, H Yan, JH Sheng, XS Chen, X Gao

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Abstract

Objective To investigate the association of retinal vascular calibers with hyperuricemia in a middle-aged and elderly population. Methods A cross-sectional design was applied in this study and 869 participants aged >= 40 years from a high-risk group for diabetes were recruited. All participants received the anthropometrical measurements and laboratory tests. Retinal arteriolar and venular caliber of the participants were measured with a semi-automated system. Hyperuricemia was defined as a serum uric acid level >420 mu mol/L in men and >360 mu mol/L in women. Linear regression models were used to assess the association of hyperuricemia with retinal vascular calibers. These models were additionally adjusted for age, central obesity, hypertension, dyslipidemia, weekly activity, smoking status, and education. Results Among the 869 participants, 133 (15.3%) suffered from hyperuricemia. The crude mean serum uric acid level was 312.3 mu mol/L (Standard Deviation 79.5); mean concentration was 355.0 mu mol/L (SD 75.5) in male participants, and 288.0 mu mol/L (SD 71.1) in female participants (age-adjusted difference 58.1 mu mol/L, 95% Confidence Internal 48.5, 67.6). After adjusting for additional covariates, male participants with hyperuricemia had 3.77 mu m (95% Cl -0.46, 8.00) smaller arteriolar caliber and 6.20 mu m (95% Cl 0.36, 12.04) larger venule than those without hyperuricemia; the corresponding numbers among female participants were 1.57 mu m (95% Cl -1.07, 4.21) for retinal arteriolar caliber and 2.28 mu m (95% Cl -1.72, 6.27) for retinal venular caliber. Conclusion Hyperuricemia was associated with smaller retinal arteriolar caliber and larger venular caliber mainly in male participants in this study.
Original languageUndefined/Unknown
Pages (from-to)146-154
Number of pages9
JournalBiomedical and Environmental Sciences
Volume24
Issue number2
DOIs
Publication statusPublished - 2011

Research programs

  • EMC OR-01-60-01

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