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Genotoxicity and metabolic changes induced via ingestion of virgin and UV-aged polyethylene microplastics by the freshwater fish Perca fluviatilis

Chemosphere 2024 19 citations ? Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count. Score: 60 ? 0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Nina Maria Ainali, Anastasia Dimitriadi, Dimitra A. Lambropoulou Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Nina Maria Ainali, Dimitra A. Lambropoulou Nina Maria Ainali, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Nina Maria Ainali, Dimitra Bobori, Dimitra Bobori, Dimitra Bobori, Ioannis Sampsonidis, Dimitrios Ν. Bikiaris, Nina Maria Ainali, Nina Maria Ainali, Dimitra A. Lambropoulou Nina Maria Ainali, Anastasia Dimitriadi, Anastasia Dimitriadi, Kostantina Michailidou, Kostantina Michailidou, Ioannis Sampsonidis, Dimitra Bobori, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Kalliopi Spritinoudi, Kostantina Michailidou, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Nina Maria Ainali, George Z. Kyzas, Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra A. Lambropoulou George Z. Kyzas, George Z. Kyzas, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra A. Lambropoulou Kalliopi Spritinoudi, Dimitra A. Lambropoulou George Z. Kyzas, Anastasia Dimitriadi, George Z. Kyzas, Ioannis Sampsonidis, Dimitra A. Lambropoulou Nina Maria Ainali, George Z. Kyzas, George Z. Kyzas, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Anastasia Dimitriadi, Dimitra A. Lambropoulou Nina Maria Ainali, George Z. Kyzas, George Z. Kyzas, Dimitrios Ν. Bikiaris, Stavros Kalogiannis, Anastasia Dimitriadi, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitra Bobori, Dimitra A. Lambropoulou Ioannis Sampsonidis, Dimitra A. Lambropoulou Anastasia Dimitriadi, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitra Bobori, Stavros Kalogiannis, Dimitra A. Lambropoulou Nina Maria Ainali, George Z. Kyzas, Nina Maria Ainali, Stavros Kalogiannis, Ioannis Sampsonidis, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitrios Ν. Bikiaris, Ioannis Sampsonidis, Dimitra A. Lambropoulou Stavros Kalogiannis, Dimitra A. Lambropoulou George Z. Kyzas, Dimitra Bobori, Dimitrios Ν. Bikiaris, George Z. Kyzas, Dimitra Bobori, Dimitrios Ν. Bikiaris, Stavros Kalogiannis, Ioannis Sampsonidis, Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra A. Lambropoulou George Z. Kyzas, George Z. Kyzas, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitrios Ν. Bikiaris, George Z. Kyzas, Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitrios Ν. Bikiaris, Nina Maria Ainali, Dimitra A. Lambropoulou George Z. Kyzas, George Z. Kyzas, Dimitra A. Lambropoulou Anastasia Dimitriadi, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitra A. Lambropoulou Dimitra A. Lambropoulou Dimitra Bobori, Dimitra A. Lambropoulou Stavros Kalogiannis, Dimitrios Ν. Bikiaris, Stavros Kalogiannis, George Z. Kyzas, George Z. Kyzas, George Z. Kyzas, Dimitra A. Lambropoulou Dimitra Bobori, George Z. Kyzas, Dimitra A. Lambropoulou George Z. Kyzas, Dimitra A. Lambropoulou Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, George Z. Kyzas, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, Dimitrios Ν. Bikiaris, George Z. Kyzas, Dimitra A. Lambropoulou

Summary

Freshwater perch fed UV-aged polyethylene microplastics showed greater DNA damage and more severe metabolic disruption in liver and muscle tissue than fish fed virgin (new) microplastics. The aged plastics disrupted energy metabolism, amino acid processing, and neurotransmitter levels. Since most microplastics in the environment have been weathered by sunlight, these findings suggest the real-world health risks to fish — and potentially to the humans who eat them — may be greater than lab studies using fresh plastics indicate.

Polymers
Study Type Environmental

The present study aims to compare and assess the toxicity induced by aged (irradiated with ultraviolet radiation for 120 days) polyethylene microplastics (PE-MPs) in comparison to virgin (non-irradiated) ones, after feeding the freshwater fish Perca fluviatilis. To this end, MPs mediated genotoxicity was assessed by the investigation of micronucleus nuclear abnormalities frequency in fish blood, and the degree of DNA damage in the liver and muscle tissues, while metabolic alterations were also recorded in both tissues. Results showed that both virgin and aged PE-MPs induced signaling pathways leading to DNA damage and nuclear abnormalities, as well as metabolites changes in all tissues studied. Metabolic changes revealed that the metabolism of nucleic acids, energy, amino acids, and neurotransmitters was more disrupted in the liver and by aged PE-MPs compared to muscles. Fish fed with aged PE-MPs exhibited greater DNA damage, while blood cells of fish fed with virgin PE-MPs seemed to be more vulnerable to nuclear abnormalities in relation to those fed with aged PE-MPs. Moreover, aged PE-MPs induced more acute overall effects on the metabolic profiles of fish tissues, and initiated stronger stress responses, inflammation, and cellular damages in fish tissues in relation to virgin ones. Characterization of both virgin and aged MPs revealed that the latter exhibited lower crystallinity and melting point, more irregular shapes and higher moiety of oxygen and carbonyl groups, which could be attributed for their observed higher toxicity. The research outcomes provide significant insights for advancing toxicological investigations in this field.

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