| Autor: |
Zilong Zhang, Cui Guo, Ly-yun Chang, Yacong Bo, Changqing Lin, Tony Tam, Hoek, Gerard, Wong, Martin C. S., Ta-Chien Chan, Lau, Alexis K. H., Xiang Qian Lao, Zhang, Zilong, Guo, Cui, Chang, Ly-Yun, Bo, Yacong, Lin, Changqing, Tam, Tony, Wong, Martin Cs, Chan, Ta-Chien, Lau, Alexis Kh |
| Zdroj: |
Occupational & Environmental Medicine; Jul2019, Vol. 76 Issue 7, p488-494, 7p, 1 Diagram, 3 Charts, 1 Graph |
| Abstrakt: |
Objectives: Animal experiments indicate that exposure to particulate matter (PM) can induce hepatotoxic effects but epidemiological evidence is scarce. We aimed to investigate the associations between long-term exposure to PM air pollution and liver enzymes, which are biomarkers widely used for liver function assessment.Methods: A cross-sectional analysis was performed among 351 852 adult participants (mean age: 40.1 years) who participated in a standard medical screening programme in Taiwan. Aspartate aminotransferase (AST), alanine aminotransferase (ALT) and γ-glutamyl transferase (GGT) levels were measured. A satellite-based spatio-temporal model was used to estimate the concentrations of ambient fine particles (PM with an aerodynamic diameter ≤2.5 µm, PM2.5) at each participant's address. Linear and logistic regression models were used to investigate the associations between PM2.5 and the liver enzymes with adjustment for a wide range of potential confounders.Results: After adjustment for confounders, every 10 µg/m3 increment in 2-year average PM2.5 concentration was associated with 0.02%(95% CI: -0.04% to 0.08%), 0.61% (95% CI: 0.51% to 0.70%) and 1.60% (95% CI: 1.50% to 1.70%) increases in AST, ALT and GGT levels, respectively. Consistently, the odds ratios of having elevated liver enzymes (>40 IU/L) per 10 µg/m3 PM2.5 increment were 1.06 (95% CI: 1.04 to 1.09), 1.09 (95% CI: 1.07 to 1.10) and 1.09 (95% CI: 1.07 to 1.11) for AST, ALT and GGT, respectively.Conclusions: Long-term exposure to PM2.5 was associated with increased levels of liver enzymes, especially ALT and GGT. More studies are needed to confirm our findings and to elucidate the underlying mechanisms. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
| Externí odkaz: |
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