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Urinalysis is a widely used diagnostic test that analyzes urine's physical, chemical, and microscopic characteristics. Healthcare providers use it to detect and monitor various health conditions, including renal disease, urinary tract infections (UTIs), diabetes, and metabolic or systemic disorders.Components of UrinalysisUrinalysis consists of three primary components: physical, chemical, and microscopic examination. Each provides unique insights into the urine sample and, by extension, the...
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Urinary Metabolomics of Plastic Manufacturing Workers: A Pilot Study.

Michele De Rosa1,2, Ottavia Giampaoli2,3, Adriano Patriarca1,2

  • 1Department of Chemistry, Sapienza University of Rome, 00185 Rome, Italy.

Journal of Xenobiotics
|March 24, 2025
PubMed
Summary

This study used NMR metabolomics to analyze urine from plastic factory workers. It revealed altered metabolic profiles, suggesting potential impacts on amino acid and NAD metabolism, even below exposure limits.

Keywords:
NMR-based metabolomicsmultivariate statistical analysisoccupational exposureplastic manufacturingurinary profile

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Area of Science:

  • Occupational Health
  • Metabolomics
  • Environmental Science

Background:

  • Plastic manufacturing poses chemical risks to workers, including exposure to styrene, phenol, butadiene, phthalates, and microplastics.
  • Characterizing these chemical risks and their biological effects is challenging, especially at low exposure levels.

Purpose of the Study:

  • To pilot an NMR-based metabolomic approach for assessing urinary profiles of plastic manufacturing workers.
  • To identify and quantify urinary metabolites to detect potential biological effects of occupational exposure.

Main Methods:

  • Collected urine samples from 12 plastic manufacturing workers and 13 healthy volunteers.
  • Utilized Nuclear Magnetic Resonance (NMR) spectroscopy for metabolite identification and quantification.
  • Applied multivariate statistical analysis to compare urinary profiles between groups.

Main Results:

  • Identified and quantified 46 urinary metabolites across various chemical classes.
  • Observed significant alterations in metabolites involved in amino acid metabolism and NAD metabolism.
  • Speculated a potential impact on gut microflora composition.

Conclusions:

  • NMR-based metabolomics can detect biological changes in workers exposed to plastic manufacturing chemicals.
  • Metabolic alterations suggest potential health impacts even below established threshold limit values.
  • This approach contributes to understanding the biological effects of occupational chemical exposure.