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Associations between multiple urinary metals and the risk of hypertension in community-dwelling older adults

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Abstract

Although metal exposure has been associated with hypertension, the conclusions remain controversial, and studies investigating the predictive effect of multiple metals on hypertension are limited. In this study, we aimed to evaluate the nonlinear dose–response relationship between a single urinary metal and the risk of hypertension, and to assess the predictive effect of multiple urinary metals on hypertension. Of the Yinchuan community-dwelling elderly cohort launched in 2020, 3,733 participants (803 with hypertension and 2,930 without hypertension) were analysed in this study, and the concentrations of 13 metal elements in urine were measured. We found that urinary vanadium (odds ratio (OR): 1.16, 95% confidence interval [CI]: 1.08–1.25), molybdenum (OR: 1.08, 95% CI: 1.01–1.16), and tellurium (OR: 1.14, 95% CI: 1.06–1.22) were associated with higher risk of hypertension, whereas iron (OR: 0.92, 95% CI: 0.85–0.98) and strontium (0.92, 95% CI: 0.85–0.99) were significantly associated with lower risk of hypertension. Restricted cubic splines analysis was conducted in patients with iron concentrations of ≥ 15.48 μg/g and ≤ 399.41 μg/g and a strontium concentration of ≤ 69.41 μg/g, results showed that the risk of hypertension decreased gradually as the urinary concentrations of these metals increased. With an increase in the vanadium concentration in urine, the risk of hypertension gradually increased. In patients with a molybdenum concentration of ≥ 56.82 μg/g and a tellurium concentration of ≥ 21.98 μg/g, the risk of hypertension gradually decreased as the urinary concentrations of these metals increased. Predictive scores based on the 13 metallic elements were significantly associated with a higher risk of hypertension (OR: 1.34 (95% CI: 1.25–1.45). After additionally including urinary metal concentrations as a parameter variable in the traditional hypertension risk assessment model, integrated discrimination and net reclassification increased by 8.00% (P < 0.001) and 2.41% (P < 0.001), respectively. Urinary vanadium, Mo, and Te concentrations were associated with a higher risk of hypertension, while iron and strontium concentrations were associated with a lower risk of hypertension. Multiple urinary metal concentrations can significantly improve the predictive ability of traditional hypertension risk-assessment models.

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Acknowledgements

The authors would like to thank the editor and reviewers for improving the quality of the manuscript.

Funding

This project was supported by the Natural Science Foundation of Ningxia, China (no.2022AAC05028).

Jian Sun has received research support from the foundation.

This project was supported The Key Research and Development Project of Ningxia (no. 2021BEG02030). Zhihong Liu has received research support from the foundation.

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Authors and Affiliations

Authors

Contributions

Siyu Duan: Conceptualisation, methodology, investigation, writing – original draft, and data curation.

Rui Wang: conceptualisation, methodology, formal analysis, writing of the original draft, and data curation.

Pei He: Methodology, investigation, formal analysis, and data curation.

Jian Sun: Conceptualisation, Methodology, Investigation, Writing – original draft, and data curation HuiFang Yang: Conceptualisation, investigation, formal analysis, writing – original draft, and supervision.

Corresponding author

Correspondence to Huifang Yang.

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Ethical approval

This study was approved by the Ethics Committee of Ningxia Medical University (no. 2021-N0098).

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The authors have no relevant financial or non-financial interests to disclose.

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Responsible Editor: Lotfi Aleya

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Highlights

• Pathogenic concentration of single metal related to hypertension were calculated.

• Mixture metal predictive scores were associated with higher risk of hypertension.

• Mixture metal can increase hypertension predictive ability significantly.

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Supplementary file1 (DOCX 565 KB)

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Duan, S., Wang, R., He, P. et al. Associations between multiple urinary metals and the risk of hypertension in community-dwelling older adults. Environ Sci Pollut Res 30, 76543–76554 (2023). https://doi.org/10.1007/s11356-023-27797-2

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  • DOI: https://doi.org/10.1007/s11356-023-27797-2

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