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| Format: | Artículo científico |
| Sprache: | en |
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Bulletin of environmental contamination and toxicology
2026
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| Online-Zugang: | https://pubmed.ncbi.nlm.nih.gov/42213153/ |
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Inhaltsangabe:
- Biomarker Responses in the Marine Mussel Mytilus Edulis Indicate Significant Toxicological Effects of Polyethylene Microplastics. Alharbi, Omar M L Animals Mytilus edulis Microplastics Polyethylene Water Pollutants, Chemical Biomarkers Oxidative Stress Superoxide Dismutase DNA Damage Comet Assay Lipid Peroxidation Thiobarbituric Acid Reactive Substances This study investigated the short‑term effects of polyethylene microplastics (PE‑MPs) on the marine mussel Mytilus edulis using a suite of cellular and subcellular biomarkers. A total of 225 mussels were collected from Umluj, Saudi Arabia, a relatively unimpacted coastal area of the Red Sea, and experimentally exposed for 72 h to spherical PE‑MPs (50 μm diameter) at nominal concentrations of 5, 10, 20, and 60 particles L. Genotoxicity, oxidative status, and cellular integrity were assessed by comet assay, thiobarbituric acid‑reactive substances (TBARS), superoxide dismutase (SOD) activity, and lysosomal membrane stability (LMS). At 60 particles L, DNA strand breakage increased markedly in hemocytes (13.09%) and gill cells (12.21%) relative to controls (2.14%; p