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Transcriptomic and Metabolomic Analyses Reveal Intestinal Lipid Metabolic Disturbance in Loaches Co-Exposed to Polystyrene Nanoplastics and Imidacloprid
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Scientists found that when tiny plastic particles (nanoplastics) and a common pesticide (imidacloprid) combine in the guts of fish, they disrupt how the fish process fats—something both pollutants alone did less severely. This matters because these same pollutants show up in our water and food supply, and this study suggests that real-world pollution—where chemicals mix together—could harm health in ways that testing one substance at a time might miss.
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Transcriptomic and Metabolomic Analyses Reveal Intestinal Lipid Metabolic Disturbance in Loaches Co-Exposed to Polystyrene Nanoplastics and Imidacloprid
AI summary Read the abstract
Scientists found that when fish (loaches) were exposed to both tiny plastic particles (nanoplastics) and a common pesticide called imidacloprid, their gut cells struggled to process fat normally, causing changes at the genetic and metabolic level. This matters because these same pollutants are widespread in our water and food supply, and this study suggests that combined exposure to plastics and pesticides could disrupt fat metabolism in ways that single-pollutant studies might miss—raising questions about similar risks for human health.
Synergistic toxicity of abamectin with nanoplastics in rainbow trout mediated by gut-liver axis disruption: Insights into oxidative stress, metabolic dysregulation, and microbiota change
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Scientists found that when a common pesticide (used in fish farming) combines with tiny plastic particles called nanoplastics, the mix causes far more damage to fish than either one alone—harming gut health, triggering liver inflammation, and disrupting the balance of good and bad gut bacteria. This matters because it shows how pollutants can team up to create bigger health problems than expected, raising concerns about how the growing mix of plastics and chemicals in our water might similarly affect other animals—and potentially humans—who are exposed to combinations of contaminants rather than just one at a time.
Biointerface interactions and mechanistic ecotoxicity of polystyrene micro/nanoplastics and imidacloprid in juvenile Carassius auratus under single and combined exposure
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Scientists found that when fish farmed for food are exposed to both microplastics and a common pesticide together, their gills suffer more damage than from either pollutant alone, including cell death and disrupted waste processing. Since these fish are raised in ponds near farms and end up on dinner tables, this raises concerns about how combined pollution affects the safety and health of our food sources.
Exacerbated interfacial impacts of nanoplastics and 6:2 chlorinated polyfluorinated ether sulfonate by natural organic matter in adult zebrafish: Evidence through histopathology, gut microbiota, and transcriptomic analysis
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In a zebrafish study, nanoplastics combined with a fluorinated chemical pollutant and natural organic matter caused more severe liver and intestinal damage than any single pollutant alone. The mixture triggered greater oxidative stress, gut inflammation, and harmful changes to gut bacteria. This research shows that in the real world, where nanoplastics mix with other pollutants, the combined health effects may be worse than studies of individual chemicals suggest.
Co-exposure to polystyrene microplastics and cypermethrin enhanced the effects on hepatic phospholipid metabolism and gut microbes in adult zebrafish
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When zebrafish were exposed to both polystyrene microplastics and the pesticide cypermethrin together, the combination caused significantly more liver damage than either pollutant alone. The mixture disrupted fat metabolism in the liver and altered gut bacteria in ways not seen with individual exposures. This matters because microplastics and pesticides frequently co-exist in waterways, and their combined effects on fish health could affect the safety of fish as food.
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