Association between exposure to perfluoroalkyl substances and uric acid in Chinese adults

作者：Yang Z, Men K, Guo J, Liu R, Liu H, Wei J, Zhang J, Liu L, Lin X, Zhang M, Liu Y, Chen Y, Tang NJ · 发表于：Chemosphere · 年份：2023 · DOI：10.1016/j.chemosphere.2022.137164 · 研究领域：Fluorocarbons、Hyperuricemia、Environmental Pollutants、Alkanesulfonic Acids、Adult、Humans、Uric Acid、Bayes Theorem、China、Decanoic Acids、Caprylates

BACKGROUND: A growing body of evidence suggests the deleterious effects of perfluoroalkyl substances (PFASs) on kidney, but little is known on the association between PFASs joint exposure and uric acid. METHODS: Serum PFASs concentrations were measured in 661 participants recruited from Tianjin, China using liquid chromatography/mass spectrometry. The associations of single PFASs exposure with uric acid levels and hyperuricemia were assessed using multivariable linear and logistic regression models, respectively. Restricted cubic spline models were established to investigate the dose-response relationships between PFASs concentrations and uric acid levels. Bayesian Kernel Machine Regression (BKMR) model with a hierarchical variable selection was performed to assess the joint effect of PFASs on uric acid. RESULTS: Potassium perfluoro-1-octanesulfonate (PFOS) and perfluoro-n-octanoic acid (PFOA) were the dominated contributors with median concentrations of 16.80 ng/ml and 9.42 ng/ml, respectively. Increased PFOA concentration (per log2-unit) was associated with elevated uric acid level (β = 0.088, 95% CI: 0.033-0.143) and higher risk of hyperuricemia (OR = 1.134, 95% CI: 1.006-1.289). Conversely, the estimated change of uric acid associated with log2-unit increment in perfluoro-n-decanoic acid (PFDA) was -0.081 mg/dL (95% CI: -0.154, -0.009). A significant linear dose-response pattern was found between log2-transformed PFOA concentration and uric acid level. BKMR analyses ind...