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61,005 resultsShowing papers similar to Tissue Distribution of Polystyrene or Mixed Polymer Microspheres and Metabolomic Analysis after Oral Exposure in Mice.
ClearMicroplastics and Metabolism: Physiological Responses in Mice Following Ingestion
Researchers found that mice orally exposed to microplastic microspheres showed changes in lipid metabolism and other metabolic pathways, with particles detected in tissues throughout the body. The effects were more pronounced when mice were exposed to mixed microplastic types compared to polystyrene alone, suggesting that real-world mixtures of microplastics may have broader physiological impacts.
Tissue accumulation of microplastics in mice and biomarker responses suggest widespread health risks of exposure
Researchers fed mice polystyrene microplastics of two sizes and tracked where the particles accumulated in the body, finding them in the liver, kidneys, and gut with distribution patterns depending on particle size. Biochemical analysis revealed that microplastic exposure disrupted energy and fat metabolism, caused oxidative stress, and altered markers of neurotoxicity in the blood. The study provides evidence that microplastics can accumulate in mammalian tissues and may pose widespread health risks.
In Vivo Tissue Distribution of Microplastics and the Systemic Metabolic Changes After Gastrointestinal Exposure in Mice
Mice exposed to microplastics via the gastrointestinal route showed systemic distribution of particles to multiple organs and measurable changes in metabolic pathways, providing early in vivo evidence of systemic impacts from plastic ingestion.
In Vivo Tissue Distribution of Microplastics and Systemic Metabolomic Alterations After Gastrointestinal Exposure
Researchers fed mice a mixture of common microplastics and then tracked where the particles ended up in the body and how they affected metabolism. They found that ingested microplastics crossed the gut barrier and accumulated in the liver, kidneys, and other tissues, causing measurable changes in metabolic pathways. The study provides evidence that microplastic exposure through the digestive system can lead to widespread tissue distribution and systemic metabolic disruption in mammals.
A new insight of size-dependent plastics particles kinetics with regarding of metabolomics effects in liver and kidney
Researchers developed a comprehensive extraction and detection protocol to track polystyrene particles of three sizes (80 nm, 2 µm, and 20 µm) across multiple organs in exposed animals, finding that smaller particles accumulated more broadly — reaching the brain, liver, spleen, and kidney — while liver and kidney metabolism was disrupted in size-dependent but distinct ways.
[The effect and mechanism of exposure to polystyrene nanoplastics on lipid metabolism in mice liver].
Researchers exposed mice to 20 nm polystyrene nanoplastics and investigated the effects on hepatic lipid metabolism using multi-omics approaches. Nanoplastic exposure disrupted lipid metabolic pathways in the liver, causing significant changes in lipid accumulation and related gene expression, suggesting a mechanism by which nanoplastic ingestion may contribute to metabolic disorders.
Distribution and toxicity of submicron plastic particles in mice
Researchers found that orally administered submicron-sized microplastics distributed to multiple organs and biofluids in mice over four weeks, causing oxidative stress and inflammation in tissues including the liver, kidneys, and gut.
Integrated transcriptomics and metabolomics reveal the mechanism of polystyrene nanoplastics toxicity to mice
Researchers used gene expression and metabolic profiling to understand how polystyrene nanoplastics harm mice at the molecular level, finding disrupted energy metabolism, fat processing, and amino acid pathways in the liver. These molecular changes suggest that nanoplastic exposure could contribute to metabolic disorders, with effects becoming more severe at higher doses.
Effects of oral administration of polystyrene nanoplastics on plasma glucose metabolism in mice
Researchers fed polystyrene nanoplastics to mice and tracked their accumulation in organs including the liver, kidneys, and pancreas. They found that the nanoplastics disrupted liver function, altered lipid metabolism, and affected blood glucose regulation. The study suggests that nanoplastic ingestion may interfere with metabolic processes, raising concerns about potential endocrine-related health effects.
The effect of polystyrene foam in different doses on the blood parameters and relative mass of internal organs of white mice
Researchers fed white mice different doses of polystyrene foam over 42 days and found dose-dependent changes in blood biochemical parameters and relative organ masses, providing evidence that ingested microplastics affect metabolism and internal organ function in mammals.
Untargeted metabolomics and transcriptomics joint analysis of the effects of polystyrene nanoplastics on lipid metabolism in the mouse liver
Mice exposed to polystyrene nanoplastics for 12 weeks gained weight without eating more and showed increased cholesterol levels and fat accumulation in their livers. Gene and metabolite analysis revealed that the nanoplastics disrupted fat metabolism pathways in the liver, essentially reprogramming how the body processes and stores fat. These findings suggest that nanoplastic exposure could be a hidden factor contributing to obesity and fatty liver disease in humans.
Impact of the Oral Administration of Polystyrene Microplastics on Hepatic Lipid, Glucose, and Amino Acid Metabolism in C57BL/6Korl and C57BL/6-Lepem1hwl/Korl Mice
Researchers investigated the effects of orally administered polystyrene microplastics on liver metabolism in normal and obese mice over eight weeks. They found that microplastic exposure altered lipid, glucose, and amino acid metabolism pathways in the liver and adipose tissues. The study suggests that microplastic ingestion may disrupt hepatic metabolic functions, with potentially different impacts depending on baseline metabolic health status.
In vivo impact assessment of orally administered polystyrene nanoplastics: biodistribution, toxicity, and inflammatory response in mice
Researchers orally administered polystyrene nanoplastics to mice for two weeks and tracked their distribution and biological effects. The nanoplastics accumulated primarily in the intestine, kidneys, and liver, triggering significant inflammatory responses and oxidative stress in these organs despite no visible tissue damage. The study provides evidence that even short-term oral exposure to nanoplastics can cause meaningful inflammatory changes in multiple organ systems.
Blood uptake and urine excretion of nano- and micro-plastics after a single exposure.
Mice exposed to polystyrene nanoparticles (100 nm) and microparticles (3 µm) via different routes showed that smaller particles appeared rapidly in blood and were detected in urine, while larger particles cleared more slowly. The study provides direct evidence that nanoplastics can cross biological barriers and enter circulation, with potential for distribution throughout the body.
Orally administered fluorescent nanosized polystyrene particles affect cell viability, hormonal and inflammatory profile, and behavior in treated mice
Researchers found that orally administered fluorescent polystyrene nanoparticles passed through the mouse digestive system and accumulated in multiple organs. The study observed changes in cell viability, hormonal and inflammatory profiles, and behavior in treated mice, providing evidence that ingested nanoplastics can cross biological barriers and affect multiple body systems.
Disruption of hepatic metabolism in Lep KO mice.
Researchers found that polystyrene microplastics administered orally for nine weeks accumulated in liver tissue of leptin-knockout obese mice and induced histopathological liver alterations, including disruption of hepatic lipid, glucose, and amino acid metabolism.
Systematic toxicity evaluation of polystyrene nanoplastics on mice and molecular mechanism investigation about their internalization into Caco-2 cells
Researchers fed mice polystyrene nanoplastics (about 100 nm) for 28 days and found the particles accumulated in multiple organs including the spleen, lungs, kidneys, intestines, testes, and brain. The nanoplastics caused cell death, inflammation, and tissue damage in these organs, as well as disrupted fat metabolism and blood cell counts. This study demonstrates that ingested nanoplastics can spread throughout the body and cause widespread harm, raising concerns about long-term human exposure.
Spatial Lipid MetabolicRemodeling from Placenta toMultiple Suborgans during the Gestational Micro- or Nanoplastics Exposure
Using pregnant mice exposed to polystyrene micro- and nanoplastics from gestation day 1–18, researchers used MALDI mass spectrometry imaging to construct a comprehensive spatial map of lipid metabolism changes across placenta and multiple maternal and fetal organs, revealing widespread lipid metabolic remodeling.
Manifestation of polystyrene microplastic accumulation in tissues of vital organs including brain with histological and behaviour analysis on Swiss albino mice
Researchers exposed rats to polystyrene microplastics and examined accumulation in vital organs including the brain, liver, kidney, and gut, finding tissue-specific deposition that was associated with behavioral changes and organ-level pathological effects.
Spatial Lipid Metabolic Remodeling from Placenta to Multiple Suborgans during the Gestational Micro- or Nanoplastics Exposure
Using pregnant mice exposed to polystyrene micro- and nanoplastics from gestation day 1–18, researchers used MALDI mass spectrometry imaging to construct a comprehensive spatial map of lipid metabolism changes across placenta and multiple maternal and fetal organs, revealing widespread lipid metabolic remodeling.
Long-Term Exposure to Polystyrene Microspheres and High-Fat Diet-Induced Obesity in Mice: Evaluating a Role for Microbiota Dysbiosis.
A long-term mouse study examined how chronic exposure to polystyrene microspheres interacts with a high-fat diet to affect obesity-related outcomes, finding that microplastics worsened metabolic disruption and fat accumulation compared to diet alone. The results raise concern that microplastic exposure may be an environmental factor contributing to the global obesity epidemic.
Polystyrene nanoplastics dysregulate lipid metabolism in murine macrophages in vitro
Researchers investigated the effects of polystyrene nanoplastics on immune cell metabolism and found that macrophages exposed to nanoplastics transformed into lipid-laden foam cells. The study suggests that nanoplastic exposure dysregulates lipid metabolism in immune cells, with implications for understanding how these particles may interact with the immune system at the cellular level.
Polystyrene nanoplastics induce profound metabolic shift in human cells as revealed by integrated proteomic and metabolomic analysis
Researchers used integrated proteomic and metabolomic analysis to study how polystyrene nanoplastics affect human kidney and liver cell lines. The study quantified changes in thousands of proteins and hundreds of metabolites, revealing that nanoplastic exposure induced a profound metabolic shift in human cells. Evidence indicates that nanoplastics can be internalized by human cells and trigger significant biological changes at the molecular level.
Oral exposure to high concentrations of polystyrene microplastics alters the intestinal environment and metabolic outcomes in mice
In a mouse study, oral exposure to high concentrations of polystyrene microplastics caused fatty liver disease and abnormal blood lipid levels even without prior gut leakiness. The microplastics triggered intestinal inflammation through immune cells, disrupted gut bacteria, and altered how the body processes nutrients. These results suggest that swallowing microplastics could contribute to metabolic problems and liver disease in humans.