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Combined exposure to multiple dioxins and dioxin-like polychlorinated biphenyls on hypertension among US adults in NHANES: a cross-sectional study under three statistical models

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Abstract

Dioxins and dioxin-like polychlorinated biphenyls (DL-PCBs) are mainly released as by-products of human activities, often in the form of mixtures, and the potential harm on human health deserves attention. Therefore, our study aimed to analyze the combined effect of dioxins and DL-PCB exposures on hypertension (HTN) among US adults. Data of eligible participants were acquired from the National Health and Nutrition Examination Survey (NHANES). Multiple logistic regression models with adjustment for covariates were applied to explore the associations between 13 persistent organic pollutants (POPs) and HTN. Stratified analyses and interaction analyses were then conducted by age and gender. Finally, the combined effects of dioxins and DL-PCBs on HTN were assessed by the weighted quantile sum (WQS) model and the Bayesian kernel machine regression (BKMR) model. A total of 976 adults were included in our study, of whom 397 had HTN. Spearman correlations indicated positive correlations among 13 POPs. And most of them (except PCB28, PCB66, and 1,2,3,4,7,8,9-hpcdf) had significant effects on HTN. The result of WQS revealed that mixed exposure to dioxins and DL-PCBs was significantly associated with increased risk of HTN (OR: 2.205; 95% CIs: 1.555, 3.127). The BKMR model also presented a positive trend of HTN risk with exposure to multiple dioxins and DL-PCBs. And 1,2,3,4,6,7,8,9-ocdd may be the main factor for this positive association. Considering the limitations of our cross-sectional study with the small sample, further prospective studies are necessary to validate our findings.

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Data availability

The data was obtained from NHANES 2003–2004.

Abbreviations

HTN:

Hypertension

BP:

Blood pressure

POPs:

Persistent organic pollutants

AhR:

Aromatic hydrocarbon receptor

ARNT:

Aryl hydrocarbon receptor nuclear translocator

XRE:

Xenobiotic response element

TCDD:

Tetrachlorodibenzo-p-dioxin

PCDDs:

Polychlorinated dibenzo-dioxins

PCDFs:

Polychlorinated dibenzo-furans

PCBs:

Polychlorinated biphenyls

DL:

Dioxin-like

MSW:

Municipal solid waste

WQS:

Weighted quantile sum

BKMR:

Bayesian kernel machine regression

NHANES:

National Health and Nutrition Examination Survey

NCHS:

National Center for Health Statistics

MEC:

Mobile examination center

DBP:

Diastolic blood pressure

SBP:

Systolic blood pressure

LPM:

Laboratory/Medical Technologists Procedures Manual

LOD:

Limit of detection

hxcdd:

Hexachlorodibenzo-p-dioxin

hpcdd:

Heptachlororodibenzo-p-dioxin

ocdd:

Octachlorodibenzo-p-dioxin

pncdf:

Pentachlorodibenzofuran

hpcdf:

Heptachlorodibenzofuran

pncb:

Pentachlorobiphenyl

PIR:

Poverty-income ratio

BMI:

Body mass index

IQR:

Interquartile range

ORs:

Odds ratios

CIs:

Confidence intervals

PIP:

Posterior inclusion probability

TEQs:

Toxic equivalents

COX-2:

Cyclooxygenase

ROS:

Reactive oxygen species

HUVEC:

Human umbilical vein endothelial cells

TEF:

Toxic equivalency factor

CYP1A2:

Cytochrome P4501A2

TEQs:

Total toxic equivalents

References

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Acknowledgements

All authors in this study thank NHANES for providing the publicly available data.

Author information

Authors and Affiliations

Authors

Contributions

Birong Wu and Xianwei Guo: conceptualization, methodology, software, data curation, formal analysis, visualization, writing—original draft, writing—review and editing. Linya Feng and Juan Gao: methodology, validation, formal analysis, software, writing—original draft, writing—review and editing. Weihang Xia and Peng Xie: conceptualization, methodology, formal analysis, visualization, writing—review and editing. Shaodi Ma, Haixia Liu, Dongdong Zhao, and Guangbo Qu: methodology, formal analysis, writing—review and editing. Chenyu Sun: conceptualization, writing—review and editing. Scott Lowe and Rachel Bentley: writing—review and editing. Yehuan Sun: conceptualization, supervision, funding acquisition, writing—review and editing.

Corresponding author

Correspondence to Yehuan Sun.

Ethics declarations

Ethics approval

The study protocol was approved by the NCHS Institutional Review Board.

Consent to participate

Informed consent was obtained from all participants involved in the NHANES.

Consent for publication

The participants have consented to the submission of this article to the journal and publication of it.

Competing interests

The authors declare no competing interests.

Additional information

Responsible Editor: Lotfi Aleya

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Wu, B., Guo, X., Feng, L. et al. Combined exposure to multiple dioxins and dioxin-like polychlorinated biphenyls on hypertension among US adults in NHANES: a cross-sectional study under three statistical models. Environ Sci Pollut Res 30, 28730–28744 (2023). https://doi.org/10.1007/s11356-022-24271-3

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  • DOI: https://doi.org/10.1007/s11356-022-24271-3

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