Lead levels, renal dysfunction and gout
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Sci Total Environ. 2008 Aug 15;401(1-3):39-43. doi: 10.1016/j.scitotenv.2008.04.004. Epub 2008 Jun 2.
Renal dysfunction and hyperuricemia with low blood lead levels and ethnicity in community-based study.
Lai LH1, Chou SY, Wu FY, Chen JJ, Kuo HW.
The objective of this study was to assess the correlation between blood lead levels (BLL) with both renal dysfunction and hyperuricemia among aboriginals and non-aboriginals in Taiwan. 1318 aboriginals and 1247 non-aboriginals over 40 years of age volunteered for this study. During routine health examinations at a clinic, blood samples were taken and a questionnaire was administered. Male uric acid (BUA) concentration (7.2 mg/dL) in serum was higher than for females (5.9 mg/dL). BUA concentration among aboriginals was higher (6.9 mg/dL) than among non-aboriginals (5.9 mg/dL). A test for trend of odds ratio (OR) for renal dysfunction and hyperuricemia indicated a significant correlation with BLL for both ethnic groups. Multiple logistic regression showed people who had BLLs exceeding 7.5 microg/dL were at a higher risk for renal dysfunction (OR=1.92, 95% CI: 1.18-3.10) and hyperuricemia (OR=2.72, 95% CI: 1.64-4.52). We concluded that BLL was significantly correlated with renal dysfunction and hyperuricemia in both ethnic groups. Further research is needed to investigate the exact mechanism causing a higher incidence of related disease among aboriginal Taiwanese.