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Effects of PET microplastics on the physiology of Drosophila
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Researchers used Drosophila fruit flies as a model to study the physiological effects of PET microplastics, finding that ingestion affected reproduction, lifespan, and gut function. The study suggests that even common plastic types found in food packaging can have measurable biological effects when consumed by living organisms.
Microplastics, as a new type of pollution, have attracted global attention and have become a research focus in recent years. Given the small size of microplastics, they can be ingested by many organisms. In addition, microplastics can enter the human body through the food chain. So, the potential dangers of microplastics can't be ignored. This study took Drosophila as a model organism to delve the physiological effects of polyethylene terephthalate microplastics (PET-MPs). Here, we reported that the higher concentration of PET-MPs was, the more obvious the effect became. The amount of oviposition decreased in female flies exposed, indicating that microplastics affected reproduction. PET-MPs caused the decrease of triglyceride and glucose content in male flies, as well as the decrease of starvation resistance, suggesting the effect of microplastics on energy metabolism. In addition, the 24-h spontaneous activity of flies exposed to PET-MPs increased significantly. The experimental results can help understand the potential impact of microplastics on physiology.
More Papers Like This
Toxicological Profile of Polyethylene Terephthalate (PET) Microplastic in Ingested Drosophila melanogaster (Oregon R+) and Its Adverse Effect on Behavior and Development
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Researchers fed PET microplastics to fruit flies and found that the particles accumulated in their bodies and caused dose-dependent declines in movement, climbing ability, and survival rates. Higher microplastic concentrations also slowed the flies' development from larvae to adults. While fruit flies are a simple model organism, these behavioral and developmental effects suggest that chronic microplastic ingestion could impair neurological and physiological functions in animals exposed through their diet.
Polypropylene microplastics affect the physiology in Drosophila model
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Researchers found that polypropylene microplastics negatively affected the physiology of Drosophila fruit flies, complementing earlier work on polyethylene terephthalate microplastics and demonstrating that different polymer types can impair organism health.
Investigation of the effects of nanoplastic polyethylene terephthalate on environmental toxicology using model Drosophila melanogaster
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Researchers synthesized polyethylene terephthalate nanoplastics and fed them to fruit flies to assess their toxic effects. The nanoplastics caused increased oxidative stress, reduced survival rates, and impaired reproductive capacity in the exposed flies. The study demonstrates that PET nanoplastics, one of the most common plastic types in food and beverage packaging, can have measurable toxic effects on living organisms.
The hazardous impact of true-to-life PET nanoplastics in Drosophila
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Researchers created realistic nanoplastics by sanding commercial PET water bottles and tested their effects on fruit flies (Drosophila melanogaster). They found that these true-to-life nanoplastics were internalized through the digestive tract and distributed throughout the body, causing measurable biological impacts. The study highlights the importance of testing with environmentally relevant plastic particles rather than only laboratory-grade materials to accurately assess health risks.
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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When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.