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61,005 resultsShowing papers similar to Polystyrene nanoplastics-induced intestinal barrier disruption via inflammation and apoptosis in zebrafish larvae (Danio Rerio)
ClearInteractions between intestinal microbiota and metabolites in zebrafish larvae exposed to polystyrene nanoplastics: Implications for intestinal health and glycolipid metabolism
Zebrafish larvae exposed to polystyrene nanoplastics suffered intestinal damage, including inflammation, oxidative stress, and disrupted gut bacteria -- with increases in bacteria linked to gut disease. The nanoplastics also altered metabolism related to sugar and fat processing, suggesting that ingesting these tiny particles could harm digestive health and disrupt how the body processes nutrients.
Immunotoxicity responses to polystyrene nanoplastics and their related mechanisms in the liver of zebrafish (Danio rerio) larvae
Researchers studied how polystyrene nanoplastics affect the immune system of zebrafish larvae by examining inflammatory responses in the liver. They found that smaller nanoparticles caused more severe immune reactions, including increased neutrophil and macrophage activity and activation of inflammatory signaling pathways. The study provides evidence that nanoplastics can trigger significant immune system disruption in fish even at early life stages.
Impacts of polystyrene nanoplastics on zebrafish gut microbiota and mechanistic insights
Zebrafish exposed to polystyrene nanoplastics showed significant changes in their gut bacteria, with beneficial species like Bifidobacterium declining and potentially harmful bacteria increasing. The nanoplastics physically entered intestinal tissues, causing visible damage to gut cells. This study is relevant to human health because our gut microbiome plays a key role in immunity and digestion, and similar disruption from nanoplastic exposure could contribute to digestive and immune problems.
Study of the effects of nanoplastics ingestion in a freshwater fish ( Danio rerio )
Researchers exposed zebrafish to polystyrene nanoplastics and found evidence of intestinal damage, oxidative stress, and behavioral changes. The study adds to growing evidence that nanoplastics in freshwater environments can harm fish health, with potential implications for the health of ecosystems and fish-eating humans.
Effect of polystyrene nanoplastics on the intestinal histopathology, oxidative stress, and microbiota of Acrossocheilus yunnanensis
Researchers studied the effects of polystyrene nanoplastics on the intestinal health of a freshwater fish species and found significant damage to the gut lining, including ruptured tissue and damaged nutrient-absorbing structures. The nanoplastics also increased oxidative stress markers and shifted the composition of gut bacteria, reducing beneficial species. The findings suggest that nanoplastic exposure can compromise both the physical barrier and microbial balance of fish intestines.
Polystyrene microplastics induce microbiota dysbiosis and inflammation in the gut of adult zebrafish
Researchers exposed adult zebrafish to polystyrene microplastics of two different sizes for 14 days and found significant disruptions to the gut microbiome, including shifts in key bacterial populations. Smaller microplastic particles also triggered inflammatory responses in the gut, with elevated levels of inflammatory markers at both the gene and protein level. The study suggests that microplastic ingestion can disturb gut bacteria balance and cause intestinal inflammation in aquatic organisms.
Nanoplastics Cause Neurobehavioral Impairments, Reproductive and Oxidative Damages, and Biomarker Responses in Zebrafish: Throwing up Alarms of Wide Spread Health Risk of Exposure
Researchers exposed adult zebrafish to polystyrene nanoplastics and found that the particles accumulated in the brain, liver, intestine, and gonads, causing significant behavioral and physiological changes. The fish showed disrupted energy metabolism, oxidative stress, and altered locomotion, aggression, and predator avoidance behaviors. The findings raise concerns about the widespread health risks of nanoplastic exposure, as these particles are small enough to cross biological membranes.
Toxicity of Polystyrene Nanoplastics in the Liver and Intestine of Normal and High-Fat-Diet Juvenile Zebrafish
Researchers exposed juvenile zebrafish to polystyrene nanoplastics combined with a high-fat diet and found that the combination caused gastrointestinal injury and disrupted lipid metabolism. The nanoplastics alone perturbed gut microbiota stability, and the effects were amplified when paired with a high-fat diet. The study suggests that dietary factors may influence the severity of nanoplastic toxicity, highlighting the importance of considering real-world exposure scenarios.
Polystyrene Nanoplastics Toxicity to Zebrafish: Dysregulation of the Brain–Intestine–Microbiota Axis
This study found that polystyrene nanoplastics disrupted the brain-gut connection in zebrafish at environmentally realistic concentrations, affecting growth, gut health, and brain chemistry. The nanoplastics altered neurotransmitter levels, particularly reducing a dopamine-related compound, and changed the balance of gut bacteria in ways that correlated with brain changes. These findings suggest a pathway by which nanoplastics in food and water could affect both digestive and brain health through the gut-brain axis.
Polystyrene Nanoplastic Exposure Adversely Affects Survivability of Zebrafish Larvae
Researchers found that polystyrene nanoplastic exposure significantly reduces survival rates of zebrafish larvae in a dose-dependent manner, documenting behavioral abnormalities and developmental defects that highlight the toxicity of nanoscale plastic particles to early vertebrate life.
Polystyrene nano/microplastics induce microbiota dysbiosis, oxidative damage, and innate immune disruption in zebrafish
Researchers exposed zebrafish to polystyrene particles of two different sizes and found that both nano- and micro-sized plastics disrupted gut bacteria, caused oxidative damage, and altered immune responses. The severity of effects depended on particle size and concentration, with smaller particles and higher doses causing more harm. The study suggests that plastic particles in waterways may pose a broader threat to fish health than previously understood, affecting digestion, stress defenses, and immunity simultaneously.
Microplastics induce intestinal inflammation, oxidative stress, and disorders of metabolome and microbiome in zebrafish
Researchers exposed zebrafish to polystyrene microplastics for 21 days and found significant intestinal inflammation, oxidative stress, and disruption of both the gut microbiome and metabolic processes. The microplastics altered the balance of beneficial and harmful gut bacteria and changed the levels of key metabolites involved in energy and amino acid metabolism. The study provides detailed evidence that microplastic ingestion can cause widespread disruption to gut health in aquatic organisms.
Effects of polystyrene nanoplastics on apoptosis, digestive enzymes, and intestinal histological structure and flora of swamp eel (Monopterus albus)
Researchers exposed swamp eels (Monopterus albus) to polystyrene nanoplastics and found inflammation in the liver and intestine, significant gene expression changes in the liver, and shifts in intestinal microbial community composition toward more pathogenic taxa. The results demonstrate that nanoplastic exposure disrupts apoptosis pathways, digestive enzyme activity, and gut microbiome health in this freshwater fish.
Neurotoxicity of polystyrene nanoplastics with different particle sizes at environment-related concentrations on early zebrafish embryos
Researchers exposed zebrafish embryos to polystyrene nanoplastics of different sizes at concentrations found in the environment and observed significant brain damage. The nanoplastics caused loss of neurons, shortened nerve fibers, and disrupted brain signaling systems that control behavior. Smaller nanoplastics caused the most severe damage because they could pass through protective barriers more easily, suggesting that the tiniest plastic particles pose the greatest risk to brain development.
Uptake Routes and Biodistribution of Polystyrene Nanoplastics on Zebrafish Larvae and Toxic Effects on Development
Researchers exposed zebrafish embryos and larvae to amino-modified polystyrene nanoplastics to study uptake routes and biodistribution. The study found that nanoplastics accumulated in target organs and caused toxic developmental effects, providing evidence that these tiny plastic fragments can penetrate biological barriers and interfere with normal development in aquatic organisms.
Distinct Effects between Polystyrene Micro- and Nanoplastics: Exacerbation of Adverse Outcomes in Inflammatory Bowel Disease-like Zebrafish and Mice
This study compared the effects of micro-sized versus nano-sized polystyrene plastics in zebrafish and mice with inflammatory bowel disease. Nanoplastics caused significantly worse gut inflammation, barrier damage, and immune disruption than larger microplastics in both species. The findings suggest that people with existing digestive conditions like IBD may be especially vulnerable to nanoplastic exposure from food and water.
Plastic nanoparticles cause mild inflammation, disrupt metabolic pathways, change the gut microbiota and affect reproduction in zebrafish: A full generation multi-omics study.
Exposure of zebrafish to polystyrene nanoparticles throughout their entire first generation caused mild inflammation, disrupted metabolic pathways, altered gut microbiota, and impaired reproduction — even at environmentally relevant concentrations. This comprehensive multigenerational study demonstrates that nanoplastic exposure can have lasting biological effects across multiple body systems in fish.
Polystyrene nanoplastics induce developmental impairments and vasotoxicity in zebrafish (Danio rerio)
Zebrafish exposed to polystyrene nanoplastics at environmentally realistic concentrations showed developmental problems including heart defects, brain abnormalities, blood vessel damage, and reduced swimming ability. The nanoplastics accumulated on the fish's body and triggered cell damage and oxidative stress even at very low doses. Since zebrafish are commonly used to model human developmental processes, these findings raise concerns about what nanoplastic exposure could mean for early human development.
Experimental evidence that polystyrene nanoplastics cross the intestinal barrier of European seabass
Researchers provided direct experimental evidence that polystyrene nanoplastics can cross the intestinal barrier of European seabass using ex vivo intestinal preparations. The study showed that nanoplastics translocated across the intestinal epithelium from both median and distal gut segments. The findings demonstrate a mechanism by which nanoplastics could gain access to the bloodstream and internal organs in fish.
DistinctEffects between Polystyrene Micro- and Nanoplastics:Exacerbation of Adverse Outcomes in Inflammatory Bowel Disease-likeZebrafish and Mice
Researchers compared the effects of polystyrene micro- and nanoplastics on a biological system, finding that nanoplastics caused more severe adverse effects than microplastics at equivalent mass doses, likely due to greater surface area and cellular penetration capacity.
Polystyrene nanoplastics cause developmental abnormalities, oxidative damage and immune toxicity in early zebrafish development
Zebrafish embryos exposed to polystyrene nanoplastics showed dose-dependent developmental problems including delayed hatching, reduced survival, smaller body size, and the nanoplastics accumulated in critical organs like the eyes, heart, liver, and brain. The particles triggered oxidative stress that damaged cells and activated inflammatory immune responses, demonstrating how nanoplastic contamination in water can cause widespread harm to developing organisms.
Micro-and nano-plastics induce kidney damage and suppression of innate immune function in zebrafish (Danio rerio) larvae
Zebrafish larvae exposed to polystyrene micro- and nanoplastics developed kidney damage and weakened immune defenses, making them much more vulnerable to bacterial infection. Both particle sizes suppressed key immune pathways, but nanoplastics primarily caused stress in cells' protein-processing systems while microplastics triggered fat buildup in the kidneys -- showing how different-sized plastic particles can harm health through distinct mechanisms.
Polystyrene nanoplastics induced size-dependent developmental and neurobehavioral toxicities in embryonic and juvenile zebrafish
Researchers exposed zebrafish embryos and juveniles to polystyrene nanoplastics of three different sizes and found that all sizes crossed into the brain, eyes, and other organs. Smaller particles tended to cause different types of damage than larger ones, including changes in brain development and behavior. This size-dependent toxicity is relevant to human health because we are exposed to a wide range of nanoplastic sizes through food and water.
Polystyrene microplastics induce endoplasmic reticulum stress, apoptosis and inflammation by disrupting the gut microbiota in carp intestines
Researchers fed carp polystyrene microplastics and found that the particles disrupted their gut bacteria, killing off beneficial species and promoting those linked to diseases. The microplastics triggered a stress response in intestinal cells that led to inflammation, cell death, and tissue damage. Since carp is a widely eaten fish, these gut health effects raise questions about how microplastics in aquatic environments could affect the safety of fish that humans consume.