The association of organochlorine pesticides and polychlorinated biphenyls exposure with dyslipidemia and blood lipids: The mediating effect of white blood cell counts
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View abstract on PubMed
Summary
This summary is machine-generated.Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) are linked to abnormal lipid metabolism and increased dyslipidemia risk. White blood cell counts, particularly lymphocytes, may mediate these associations, highlighting potential biological mechanisms.
Area Of Science
- Environmental health
- Toxicology
- Metabolic disorders
Background
- Organochlorine pesticides (OCPs) and polychlorinated biphenyls (PCBs) are persistent organic pollutants with widespread human exposure.
- Evidence linking OCPs and PCBs to lipid metabolism and dyslipidemia remains limited.
- The biological mechanisms, including the role of white blood cell (WBC) counts, are not well understood.
Purpose Of The Study
- To investigate the associations between OCPs, PCBs, and dyslipidemia in adults.
- To examine the relationship between OCPs, PCBs, and blood lipid levels (triglycerides, HDL-c, total cholesterol).
- To evaluate the mediating role of total and differential WBC counts in these associations.
Main Methods
- Cross-sectional study of 2036 adults in Wuhan, China.
- Measurement of serum OCP/PCB concentrations, blood lipid levels, and WBC counts.
- Statistical analyses including multiple-pollutant models, weighted quantile sum (WQS) regression, and mediation analysis.
Main Results
- Specific OCPs (β-HCH, p,p'-DDE) and PCBs (PCB-153) were positively associated with dyslipidemia.
- p,p'-DDE and PCB-153 correlated with elevated triglycerides and lower HDL-c; p,p'-DDE also linked to higher total cholesterol.
- WQS regression identified OCP/PCB mixtures as risk factors for dyslipidemia, with p,p'-DDE as a major contributor. Lymphocyte counts showed potential mediating effects.
Conclusions
- OCPs and PCBs are associated with abnormal lipid metabolism and increased dyslipidemia risk.
- These associations may be partially mediated by white blood cell counts, particularly lymphocytes.
- Findings suggest potential mechanisms linking environmental pollutants to metabolic disorders.
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