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Associations of exposure to multiple metals with the risk of age-related cataract in Anhui, China: a case–control study

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Abstract

It’s well-known that multiple metal elements can lead to the change of oxidative stress response levels in vivo. However, their relationship with age-related cataract (ARC) had not been well studied. We designed a case–control study including 210 individuals with ARC and 210 matched control group. The metal levels in their urine specimens were measured using graphite furnace atomic absorption spectrometry (GFAAS) and inductively coupled plasma optical emission spectrometry (ICP-OES). Least Absolute Shrinkage and Selection Operator (LASSO) regression was used to select representative metals into the multi-element model and reduce dimension. Multivariate logic analysis and Bayesian kernel machine regression (BKMR) were subsequently used to explore the association of ARC risk with multiple metal elements. We found that magnesium (Mg), chromium (Cr), arsenic (As), manganese (Mn), and selenium (Se) were positively associated with ARC in the single-element model. The multiple exposure model indicated a positive association between Mg and As, in which the OR in their highest quartile were 3.32 (95% CI: 1.24–8.89) and 7.09 (95% CI: 2.56–19.63). The BKMR model also showed the effect of As increased monotonically with its increasing concentration, and high levels of Mg and As had a significant positive effect on ARC risk. In conclusion, we found that exposure to multiple metals was associated with increased ARC risk. Further research is needed to verify these findings in the future.

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The datasets used and/or analyzed during the current study are available from the corresponding author on reasonable request.

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Acknowledgements

Thanks to all the subjects participated in this research.

Funding

This work was supported by The Project for Top Disciplinary Talents of Majors in Universities of Anhui Province [grant numbers gxbjZD09].

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Authors

Contributions

Yan-Qing Li, Qian Wang, Ran Liu, Fen Huang, and Yan-Feng Zhou contributed to the study conception and design. Material preparation and data collection were performed by Yan-Qing Li, Qian Wang, Ran Liu, and Guo-Ao Li. Yan-Feng Zhou, Fen Huang, Guo-Ao Li, and Jia-Liu He analyzed and interpreted the data. Yan-Qing Li, Qian Wang, and Guo-Ao Li wrote the first draft of the manuscript, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to Yan-Feng Zhou.

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Ethics approval and consent to participate

The study had been approved by the Ethics Committee of Anhui Medical University (Approval No: 20170305), and the participants had signed written informed consent.

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Not applicable.

Competing interests

The authors declare no competing interests.

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Responsible Editor: Lotfi Aleya

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Li, YQ., Wang, Q., Liu, R. et al. Associations of exposure to multiple metals with the risk of age-related cataract in Anhui, China: a case–control study. Environ Sci Pollut Res 30, 4680–4693 (2023). https://doi.org/10.1007/s11356-022-22494-y

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  • DOI: https://doi.org/10.1007/s11356-022-22494-y

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