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Polystyrene micro- and nanoplastics affect locomotion and daily activity ofDrosophila melanogaster
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Uptake and effects of polystyrene micro- and nanospheres on Drosophila melanogaster were studied, finding that both sizes of plastic particles affected locomotion and daily activity patterns. The results suggest that microplastic and nanoplastic ingestion can disrupt behavioral functions in the fruit fly model.
Uptake and effects of polystyrene micro- and nanospheres onDrosophila melanogaster.
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Metabolic effects of dietary exposure to polystyrene microplastic and nanoplastic in fruit flies
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Researchers used fruit flies as a model organism to study the metabolic effects of ingesting polystyrene microplastic and nanoplastic particles at environmentally relevant doses. They found that both particle sizes disrupted metabolic processes, with nanoplastics causing more pronounced changes in energy storage and lipid metabolism. The study suggests that dietary exposure to plastic particles, even at levels found in the environment, can meaningfully alter metabolic physiology.
Polystyrene microplastics alter physiological parameters in the Drosophila model
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Researchers investigated the effects of polystyrene micro- and nanoplastics on fruit flies (Drosophila melanogaster) and found dose- and size-dependent toxicity at both larval and adult stages. Exposure caused significant behavioral impairments, elevated markers of cellular stress, and activated key stress response genes, indicating that polystyrene microplastics induce oxidative stress and cellular damage.
No evidence for behavioral or physiological effects of nanoplastics ingestion in the fruit fly Drosophila melanogaster
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Researchers exposed Drosophila melanogaster to low and high concentrations of nanoplastics (1 µg/g and 1 mg/g) across several generations and measured emergence rate, mitochondrial activity, metabolism, body mass, and locomotion. No significant behavioral or physiological effects were detected, suggesting Drosophila may be less sensitive to nanoplastics than aquatic species.
Adverse biological effects of ingested polystyrene microplastics using Drosophila melanogaster as a model in vivo organism
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Researchers used fruit flies as an in vivo model to study the biological effects of ingesting polystyrene microplastics at three different sizes. Exposure caused significant morphological defects, impaired climbing behavior, and genotoxic effects as shown by a somatic mutation test. The findings suggest that polystyrene microplastics may induce genetic damage primarily through somatic recombination, raising concerns about their potential biological impact on living organisms.
Intake of polyamide microplastics affects the behavior and metabolism of Drosophila
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Researchers found that exposure to polyamide microplastics altered feeding behaviour, reduced triglyceride and protein levels, and disrupted metabolism in Drosophila, with effects differing between sexes and increasing in severity at higher microplastic concentrations.
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