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Tier 2
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Original research — experimental, observational, or case-control study. Direct primary evidence.
Human Health Effects
Marine & Wildlife
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Exposure to pet-made microplastics: Particle size and pH effects on biomolecular responses in mussels
Marine Pollution Bulletin2020
29 citations
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Citation count from OpenAlex, updated daily. May differ slightly from the publisher's own count.
Score: 40
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0–100 AI score estimating relevance to the microplastics field. Papers below 30 are filtered from public browse.
Francesca Provenza,
Manuela Piccardo,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Manuela Piccardo,
Francesca Provenza,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Francesca Provenza,
Francesca Provenza,
Monia Renzi,
Francesca Provenza,
Manuela Piccardo,
Francesca Provenza,
Francesca Provenza,
Monia Renzi,
Francesca Provenza,
Monia Renzi,
Antonio Terlizzi
Monia Renzi,
Manuela Piccardo,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Antonio Terlizzi
Antonio Terlizzi
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Manuela Piccardo,
Manuela Piccardo,
Manuela Piccardo,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Manuela Piccardo,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Monia Renzi,
Monia Renzi,
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Francesca Provenza,
Monia Renzi,
Antonio Terlizzi
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Francesca Provenza,
Francesca Provenza,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Monia Renzi,
Antonio Terlizzi
Summary
Researchers exposed mussels (Mytilus galloprovincialis) to PET microplastic fibers of three size classes under two pH conditions, finding that all sizes induced oxidative stress with lipid peroxidation and glutathione peroxidase being the most sensitive biomarkers. Larger particles (0.5-3.0 mm) caused greater effects, and mussels in acidified seawater (pH 7.5) showed lower biomarker expression than those at standard pH (8.0).
This study aims to evaluate the expression of biomarkers of oxidative stress (LPO, GPx, AtCh, SOD) in mussels (Mytilus galloprovincialis) following the exposure to suspensions of microparticles irregular shaped fibres of Polyethylene terephthalate of different sizes (small 5-60 μm, S-PET; medium 61-499 μm, M-PET; large 500-3000 μm, L-PET) at a single dose of 0.1 g/L. Mussels were tested under two different starting pH conditions of marine water: standard (8.0) and acidified (7.5). The results obtained from this study show that: i) PET microplastics are able to induce biochemical stress in mussels; ii) among the biomarkers tested, LPO and GPx were more effective in detecting the stress induced by microplastic in both initial pH conditions; iii) the expression of biomarkers was influenced by the size of the microparticle. In particular, greater effects were associated with the largest PET particle tested (0.5-3.0 mm); iv) regarding the effect of pH, in experiments starting from 7.5 pH the animals showed a lower biomarker expression than those starting from 8.0 pH.