Abstract
Cardiovascular diseases (CVD) are main public health concerns highly prevalent in industrialized societies where human health is threatened by a series of environmental pollutants, particularly heavy metal contaminants. We aimed to find out if blood heavy metals are associated with the 10-year risk of atherosclerotic cardiovascular disease (ASCVD) in a nationally representative sample of US adults. We analyzed the cross-sectional data on blood heavy metals of 3268 non-Hispanic white participants aged 40–79 years from the National Health and Nutrition Examination Survey (NHANES) 1999–2018. We introduced a risk estimation algorithm, namely the 2013 Pooled Cohort Equations (PCE), to assess the risk for ASCVD over a 10-year period. The 10-year risk for ASCVD was categorized as either reduced risk (< 7.5% risk) or elevated risk (≥ 7.5% risk). Blood lead, cadmium, and mercury were distributed into four quartiles. We used weighted multivariate logistic regression models and restricted cubic spline (RCS) regression to detect the association of blood heavy metal exposure with 10-year ASCVD risk. Following the adjustment of covariates, the adjusted odds ratios (ORs) with 95% confidence intervals (CIs) for elevated 10-year ASCVD risk for participants from the highest quartiles were 4.50 (2.88–7.02), 2.59 (1.68–4.00), and 1.06 (0.66–1.71) for blood cadmium, lead, and mercury compared to the lowest quartiles, respectively. The RCS plot demonstrated that blood cadmium was linearly and positively associated with 10-year ASCVD risk (P for nonlinearity = 0.112). According to our findings, non-Hispanic whites aged 40–79 years had a greater 10-year ASCVD risk as their blood lead and cadmium levels increased. Consequently, when establishing approaches for ASCVD prevention, blood heavy metals should be considered.
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Data Availability
The datasets used and/or analyzed during the current study are available from the NHANES website (https://www.cdc.gov/nchs/nhanes/index.htm).
Abbreviations
- CVD:
-
Cardiovascular disease
- ASCVD:
-
Atherosclerotic cardiovascular disease
- CHD:
-
Coronary heart disease
- NHANES:
-
National Health and Nutrition Examination Survey
- SBP:
-
Systolic blood pressure
- TC:
-
Total cholesterol
- HDL-C:
-
High density lipoprotein cholesterol
- BMI:
-
Body mass index
- LDL-C:
-
Low-density lipoprotein cholesterol
- CRP:
-
C-reactive protein
- TG:
-
Triglyceride
- UA:
-
Uric acid
- eGFR:
-
Estimated glomerular filtration rate
- RCS:
-
Restricted cubic spline
- OR:
-
Odds ratio
- CI:
-
Confidence interval
- MI:
-
Myocardial infarction
- ROS:
-
Reactive oxygen species
- NO:
-
Nitric oxide
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Acknowledgements
Thanks to Zhang Jing (Shanghai Tongren Hospital) for his effort on the NHANES database. His outstanding work, NHANES R package and webpage, makes it easier for us to discover NHANES database.
Funding
This investigation was funded by grants from the National Natural Science Foundation of China (No. 81871359 and No. 82071944).
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Kai WANG: Conceptualization, Methodology, Software, Formal analysis, Writing – original draft, Visualization. Yukang MAO: Conceptualization, Methodology, Writing – review & editing, Visualization. Miao LU: Formal analysis, Data curation, Validation. Zheng LIU: Formal analysis, Software, Writing – review & editing. Yansong LI: Formal analysis, Methodology. Zhongming LI: Formal analysis, Data curation. Yan SUN: Data curation, Writing – review & editing. Yinzhang DING: Data curation, Writing – review & editing. Xianling LIU: Data curation. Jian HONG: Project administration, Funding acquisition, Writing-review and editing. Di XU and Jing ZHANG: Conceptualization, Methodology, Project administration, Funding acquisition, Writing – review & editing, Supervision.
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NHANES Institutional Review Board approved the ethical conduct of NHANES 1999–2018, and all participants provided informed consent. The study procedures were structured in line with the Declaration of Helsinki.
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12011_2022_3537_MOESM1_ESM.jpg
Supplementary figure 1 Unweighted restricted cubic spline analysis for the association between blood heavy metals and 10-year ASCVD risk. (A) Blood cadmium. (B) Blood lead. (C) Total blood mercury. Analyses were adjusted for education, annual family income, alcohol intake, eGFR, C-reactive protein, hemoglobin, physical activity, BMI, waist, triglyceride, LDL-C and uric acid. Abbreviations: ASCVD, atherosclerotic cardiovascular disease; BMI, body mass index; eGFR, estimated glomerular filtration rate; LDL-C, low-density lipoprotein cholesterol (JPG 928 KB)
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Wang, K., Mao, Y., Liu, Z. et al. Association of Blood Heavy Metal Exposure with Atherosclerotic Cardiovascular Disease (ASCVD) Among White Adults: Evidence from NHANES 1999–2018. Biol Trace Elem Res 201, 4321–4333 (2023). https://doi.org/10.1007/s12011-022-03537-4
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DOI: https://doi.org/10.1007/s12011-022-03537-4