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Analysis of Microplastics in Human Feces Reveals a Correlation between Fecal Microplastics and Inflammatory Bowel Disease Status
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Researchers found higher concentrations and greater diversity of microplastics in fecal samples from inflammatory bowel disease patients compared to healthy controls, suggesting a potential association between microplastic ingestion and gut inflammation, though causality remains to be established.
Human ingestion of microplastics (MPs) is inevitable due to the ubiquity of MPs in various foods and drinking water. Whether the ingestion of MPs poses a substantial risk to human health is far from understood. Here, by analyzing the characteristics of MPs in the feces of patients with inflammatory bowel disease (IBD) and healthy people, for the first time, we found that the fecal MP concentration in IBD patients (41.8 items/g dm) was significantly higher than that in healthy people (28.0 items/g dm). In total, 15 types of MPs were detected in feces, with poly(ethylene terephthalate) (22.3–34.0%) and polyamide (8.9–12.4%) being dominant, and their primary shapes were sheets and fibers, respectively. We present evidence indicating that a positive correlation exists between the concentration of fecal MPs and the severity of IBD. Combining a questionnaire survey and the characteristics of fecal MPs, we conclude that the plastic packaging of drinking water and food and dust exposure are important sources of human exposure to MPs. Furthermore, the positive correlation between fecal MPs and IBD status suggests that MP exposure may be related to the disease process or that IBD exacerbates the retention of MPs. The relative mechanisms deserve further studies. Our results also highlight that fecal MPs are useful for assessing human MP exposure and potential health risks.
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Analysis of Microplastics in Human Feces Reveals a Correlation between Fecal Microplastics and Inflammatory Bowel Disease Status
AI summary Read the abstract
Researchers analyzed microplastics in the stool of patients with inflammatory bowel disease (IBD) and healthy volunteers, finding that IBD patients had significantly higher concentrations of microplastics in their feces. PET plastic and polyamide were the most common types found, likely originating from food packaging and dust. The positive correlation between microplastic levels and IBD severity suggests that microplastic exposure may be linked to gut inflammation, though it is not yet clear whether the plastics contribute to the disease or the disease causes more plastic retention.
Response to Comment on “Analysis of Microplastics in Human Feces Reveals a Correlation between Fecal Microplastics and Inflammatory Bowel Disease Status”
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This correspondence responded to critiques of a study reporting a correlation between fecal microplastic concentrations and inflammatory bowel disease status in human patients. The authors defended their analytical methods and argued that the observed association warrants further investigation into microplastics as a potential factor in gut inflammation.
Microplastics and inflammatory bowel disease: dissecting the evidence from observational links to potential causal mechanisms
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This review pulls together existing research suggesting that tiny plastic particles we ingest may weaken our gut's protective barrier and disrupt healthy gut bacteria, potentially fueling inflammatory bowel disease. While the link isn't proven yet, it's a reminder that reducing plastic exposure in food and water could matter for long-term gut health.
The role of microplastics in the pathogenesis of inflammatory bowel diseases
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This review of existing research found that tiny plastic particles we eat and drink may contribute to inflammatory bowel diseases like Crohn's disease and ulcerative colitis. The plastic bits can damage the gut lining, cause inflammation, and disrupt the healthy bacteria in our intestines. While more research is needed to confirm the connection, this suggests that reducing plastic pollution could be important for protecting our digestive health.
Micro- and Nanoplastics in Inflammatory Bowel Disease: from Experimental Models to Human Evidence
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This review summarizes existing animal, human, and lab research on tiny plastic particles and inflammatory bowel disease. In healthy animals, plastic exposure alone caused mild or inconsistent gut changes, but in animals with chemically induced colitis, it worsened gut damage and inflammation. Human studies found higher plastic levels in feces of IBD patients, but evidence remains limited.
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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.