Metabolomics perspectives into the co-exposure effect of polycyclic aromatic hydrocarbons and metals on renal function : A meet-in-the-middle approach

Copyright © 2024 Elsevier B.V. All rights reserved..

Studies on the dose effects of kidney impairment and metabolomes in co-exposure to polycyclic aromatic hydrocarbons (PAHs) and metals are limited. We aimed to identify overall associations and metabolic perturbations in 130 participants (53 petrochemical workers and 77 controls) exposed to a PAHs-metals mixture in Southern China. The urinary 7 hydroxylated PAHs and 15 metal(loid)s were determined, and serum creatinine, beta-2 microglobulin, and estimated glomerular filtration rate were health outcomes. The liquid chromatography-mass spectrometry-based method was applied to serum metabolomics. Generalized weighted quantile sum (gWQS) regressions were used to estimate the overall dose-response relationships, and pathway analysis, "meet-in-the-middle" approach, and mediation effect analyses were conducted to identify potential metabolites and biological mechanisms linking exposure with nephrotoxic effects. Our results indicated that renal function reduction was associated with a PAHs-metals mixture in a dose-dependent manner, and 1-hydroxynaphthalene and copper were the most predominant contributors among the two families of pollutants. Furthermore, the metabolic disruptions associated with the early onset of kidney impairment induced by the combination of PAHs and metals encompassed pathways such as phenylalanine-tyrosine-tryptophan biosynthesis, phenylalanine metabolism, and alpha-linolenic acid metabolism. In addition, the specifically identified metabolites demonstrated excellent potential as bridging biomarkers connecting the reduction in renal function with the mixture of PAHs and metals. These findings shed light on understanding the overall associations and metabolic mechanism of nephrotoxic effects of co-exposure to PAHs and metals.

Medienart:

E-Artikel

Erscheinungsjahr:

2024

Erschienen:

2024

Enthalten in:

Zur Gesamtaufnahme - volume:921

Enthalten in:

The Science of the total environment - 921(2024) vom: 15. März, Seite 170975

Sprache:

Englisch

Beteiligte Personen:

Liao, Qilong [VerfasserIn]
Huang, Lulu [VerfasserIn]
Cai, Fengshan [VerfasserIn]
Luo, Weikeng [VerfasserIn]
Li, Min [VerfasserIn]
Yang, Juanjuan [VerfasserIn]
Tang, Bin [VerfasserIn]
Xiao, Xinyi [VerfasserIn]
Yan, Xiao [VerfasserIn]
Zheng, Jing [VerfasserIn]

Links:

Volltext

Themen:

47E5O17Y3R
Biomarkers
Environmental Pollutants
Journal Article
Meet-in-the-middle
Metals
Mixture exposure
Phenylalanine
Polycyclic Aromatic Hydrocarbons
Polycyclic aromatic hydrocarbons
Renal function

Anmerkungen:

Date Completed 11.03.2024

Date Revised 11.03.2024

published: Print-Electronic

Citation Status MEDLINE

doi:

10.1016/j.scitotenv.2024.170975

funding:

Förderinstitution / Projekttitel:

PPN (Katalog-ID):

NLM368503917