Article
?
AI-assigned paper type based on the abstract. Classification may not be perfect — flag errors using the feedback button.
Tier 2
?
Original research — experimental, observational, or case-control study. Direct primary evidence.
Environmental Sources
Human Health Effects
Sign in to save
Coexposure to microplastic and arsenic induces prooxidative situation in <i>Laeonereis culveri</i> (Annelida, Polychaeta)
Toxicology Research2025
Score: 48
?
0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Francesco Regoli
Gabriela Soares,
Francesco Regoli
Larissa Müller,
Francesco Regoli
Larissa Müller,
Francesco Regoli
Larissa Müller,
Nágila Villar,
Gabriela Soares,
Larissa Müller,
Larissa Müller,
Nágila Villar,
Larissa Müller,
Gabriela Soares,
Gabriela Soares,
Daniele Fattorini,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Gabriela Soares,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Larissa Müller,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Juliane Ventura‐Lima,
Daniele Fattorini,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Daniele Fattorini,
Francesco Regoli
Francesco Regoli
Daniele Fattorini,
Juliane Ventura‐Lima,
Juliane Ventura‐Lima,
Francesco Regoli
Francesco Regoli
Daniele Fattorini,
Juliane Ventura‐Lima,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Larissa Müller,
Francesco Regoli
Juliane Ventura‐Lima,
Juliane Ventura‐Lima,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Daniele Fattorini,
Francesco Regoli
Juliane Ventura‐Lima,
Daniele Fattorini,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Juliane Ventura‐Lima,
Francesco Regoli
Larissa Müller,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Juliane Ventura‐Lima,
Francesco Regoli
Francesco Regoli
Francesco Regoli
Francesco Regoli
Daniele Fattorini,
Francesco Regoli
Francesco Regoli
Summary
Researchers exposed the marine polychaete Laeonereis culveri to microplastics alone, arsenic alone, or both combined and found that co-exposure produced an additive prooxidative effect — increasing reactive oxygen species and oxidative damage beyond either pollutant alone.
Microplastics (MP) can act as carriers of other contaminants, such as metals, including the metalloid arsenic (As). So, the objective of this study was to evaluate the combined effect of MP and As on the polychaete <i>Laeonereis culveri</i>. The animals were divided into four experimental groups: (1) exposed to MP (40 μg/L, polystyrene, 1.1 μm, spherical), (2) exposed only to As (50 μg/L as arsenite), (3) exposed to both MP and As (same concentrations as cited above), and (4) a control group (only water). The animals were exposed for 7 days and parameters related to oxidative stress and energy metabolism, as well as total arsenic content and chemical speciation, were analyzed. The results showed that coexposure to MP and As induced a decrease in GPx and GST activities, while GSH levels were reduced in the group exposed only to microplastics. MP did not induce changes in As accumulation nor did it affect As metabolization capacity. Coexposure to As and MP resulted in elevated glucose levels, lactate concentrations, and LDH activity. Hence, our findings imply that the combination of As and MP may induce a prooxidant environment in <i>L. culveri</i>. Such conditions could potentially compromise other long-term physiological functions.