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Table 1_Higher abundance of micro- and nanoplastics in inflammatory tissues from patients with intestinal erosion.docx
Summary
Researchers found nearly three times more microplastic particles in inflamed, damaged intestinal tissue compared to healthy tissue from the same patients, suggesting a possible link between plastic buildup in our gut and inflammation. This was a small study of just six people, so it can't prove plastics cause the inflammation—but it raises early questions about whether the microplastics we ingest from food, water, and packaging could be contributing to digestive health problems.
The detrimental effects of micro- and nanoplastics (MNPs) on human health have been the subject of intense research in recent years, but there is little data on how MNPs affect intestinal health. Six participants with colonic or terminal ileal erosion were enrolled, and one erosive tissue sample plus one adjacent non-erosive tissue sample were collected from each participant. Pyrolysis gas chromatography/mass spectrometry (Py-GC/MS) was utilized to determine the MNP content of these tissues after pathological examination investigation verified the existence of inflammation in the erosive tissue samples. Our results revealed that MNPs were present in all intestinal samples, with a total MNP concentration of 1758.15 (664.07) mg/kg in inflammatory tissues and 611.49 (510.64) mg/kg in non-inflammatory intestinal tissues; the difference was statistically significant (p < 0.05). Three types of MNPs were identified: polyethylene (PE), polyvinyl chloride (PVC), and polystyrene (PS). PE and PVC exhibited a 100% detection rate in all tissue samples, whereas PS was found in 16.67% of samples. Correlation analysis revealed marginal associations of intestinal MNP levels with age, drinking water source and diarrhea. This work provides preliminary baseline data and hints at a weak link between MNP exposure and intestinal inflammation.