Urinary biomarkers of drinking water disinfection byproducts in relation to blood-based liver function parameters among reproductive-aged Chinese women

IF 8.2 1区环境科学与生态学 Q1 ENVIRONMENTAL SCIENCES

Science of the Total Environment Pub Date : 2025-03-03 DOI:10.1016/j.scitotenv.2025.179016

Ping-Ping Gui , Yan-Ling Deng , Min Zhang , Yu Miao , Peng-Hui Liu , Jia-Yue Zeng , Yang Wu , Cheng-Ru Li , Xiao-Ying Liu , Yang-Juan Li , Jin-Qin Zhu , A-Xue Liu , Bin Zhou , Fei Yang , Qiang Zeng

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引用次数: 0

Abstract

Background

Toxicological studies have documented that disinfection byproducts (DBPs), the ubiquitous drinking water pollutants, induce hepatotoxicity. Yet epidemiological evidence is sparse.

Objective

To assess urinary biomarkers of drinking water DBPs in relation to liver function parameters.

Methods

We included 1204 reproductive-aged women from the Tongji Reproductive and Environmental (TREE) study in Wuhan, China between December 2018 and July 2021. Urinary trichloroacetic acid (TCAA) and dichloroacetic acid (DCAA) as biomarkers of drinking water DBPs were assessed. Serum liver function parameters such as albumin (ALB), total cholesterol (TC), and alkaline phosphatase (ALP) were determined. Urinary DCAA and TCAA concentrations in relation to liver function parameters were examined by multivariate linear regression or restricted cubic spline (RCS) models.

Results

There was no evidence of urinary TCAA in relation to serum parameters of liver function. However, monotonic dose-response relationships were estimated between elevated tertiles of urinary DCAA concentrations and increased serum ALP (percent change = 4.25 %; 95 % CI: 0.34 %, 8.32 % for the upper vs. lower tertile) and TC levels (percent change = 3.84 %; 95 % CI: 0.63 %, 7.17 % for the upper vs. lower tertile). These associations remained for urinary DCAA modeled as the continuous exposure variable and were linear in the RCS models. Age, body mass index, and passive smoking status did not modify these associations.

Conclusion

DCAA but not TCAA exposure may contribute to damaged liver function in reproductive-aged women.

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来源期刊

Science of the Total Environment 环境科学-环境科学

CiteScore

17.60

自引率

10.20%

发文量

8726

审稿时长

2.4 months

期刊介绍： The Science of the Total Environment is an international journal dedicated to scientific research on the environment and its interaction with humanity. It covers a wide range of disciplines and seeks to publish innovative, hypothesis-driven, and impactful research that explores the entire environment, including the atmosphere, lithosphere, hydrosphere, biosphere, and anthroposphere. The journal's updated Aims & Scope emphasizes the importance of interdisciplinary environmental research with broad impact. Priority is given to studies that advance fundamental understanding and explore the interconnectedness of multiple environmental spheres. Field studies are preferred, while laboratory experiments must demonstrate significant methodological advancements or mechanistic insights with direct relevance to the environment.