Association between per- and polyfluoroalkyl substances with serum hepatobiliary system function biomarkers in patients with acute coronary syndrome.

Previous studies have suggested that abnormal hepatobiliary system function may contribute to poor prognosis in patients with acute coronary syndrome (ACS) and that abnormal hepatobiliary system function may be associated with per- and polyfluoroalkyl substances (PFAS) exposure. However, there is limited evidence for this association in cardiovascular subpopulations, particularly in the ACS patients. Therefore, we performed this study to evaluate the association between plasma PFAS exposure and hepatobiliary system function biomarkers in patients with ACS. This study included 546 newly diagnosed ACS patients at the Second Hospital of Hebei Medical University, and data on 15 hepatobiliary system function biomarkers were obtained from medical records. Associations between single PFAS and hepatobiliary system function biomarkers were assessed using multiple linear regression models and restricted cubic spline model (RCS), and mixture effects were assessed using the Quantile g-computation model. The results showed that total bile acids (TBA) was negative associated with perfluorohexane sulfonic acid (PFHxS) (-7.69 %, 95 % CI: -12.15 %, -3.01 %). According to the RCS model, linear associations were found between TBA and PFHxS (P for overall = 0.003, P for non-linear = 0.234). We also have observed the association between between PFAS congeners and liver enzyme such as aspartate aminotransferase (AST) and α-l-Fucosidase (AFU), but it was not statistically significant after correction. In addition, Our results also revealed an association between prealbumin (PA) and PFAS congeners as well as mixtures. Our findings have provided a piece of epidemiological evidence on associations between PFAS congeners or mixture, and serum hepatobiliary system function biomarkers in ACS patients, which could be a basis for subsequent mechanism studies.