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Association between exposure to microplastics and lipid disorders: A case-control study.

Wenfeng Lu1, Xiaole Xu1, Lieyang Fan1

  • 1Institute for Chemical Carcinogenesis, Guangzhou Medical University, Guangzhou, Guangdong 511436, China.

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Internal exposure to microplastics is linked to lipid disorders like hyperlipidemia and dyslipidemia. This study provides new evidence on microplastics

Keywords:
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Area of Science:

  • Environmental Health
  • Toxicology
  • Metabolic Disorders

Background:

  • Limited evidence exists regarding the impact of internal microplastic exposure on lipid metabolism.
  • Microplastic contamination is a growing global concern with potential health implications.

Purpose of the Study:

  • To investigate the association between microplastic exposure and the prevalence of lipid disorders.
  • To explore the relationship between microplastics and specific lipid parameters.

Main Methods:

  • A case-control study was conducted with 239 adult patients in Zhuhai, China.
  • Microplastics in bronchoalveolar lavage fluid (BALF) were identified and quantified using laser direct infrared spectroscopy.
  • Statistical analyses included logistic regression, linear regression, and restricted cubic splines to assess associations.

Main Results:

  • Fourteen microplastic types were detected in BALF, with polyethylene (PE) being predominant.
  • Increased microplastic levels, particularly PE, were significantly associated with higher odds of hyperlipidemia and dyslipidemia.
  • Microplastic exposure correlated with elevated total cholesterol levels.

Conclusions:

  • Internal microplastic exposure is significantly associated with adverse lipid profiles.
  • This study offers novel evidence of microplastics negatively impacting lipid metabolism.
  • Findings highlight the potential health risks of microplastic accumulation within the body.