Investigating the toxic mechanism of iron oxide nanoparticles-induced oxidative stress in tadpole (Duttaphrynus melanostictus): A combined biochemical and molecular study.
Environ Toxicol Pharmacol
; 107: 104432, 2024 Apr.
Article
em En
| MEDLINE
| ID: mdl-38554986
ABSTRACT
Metal oxide nanomaterials have toxicity towards aquatic organisms, especially microbes and invertebrates, but little is known about their impact on amphibians. We conducted a study on Duttaphrynus melanostictus (D. melanostictus) tadpoles to explore the chronic toxicity effects of iron oxide nanoparticles (IONPs) and the underlying mechanisms of IONPs-induced oxidative stress. IONPs exposure led to increased iron accumulation in the blood, liver, and kidneys of tadpoles, significantly affecting blood parameters and morphology. Higher IONPs concentrations (10 and 50â¯mgâ¯L-1) triggered reactive oxygen species generation, resulting in lipid peroxidation, oxidative stress, and pronounced toxicity in tadpoles. The activity levels of antioxidant enzymes/proteins (SOD, CAT, albumin, and lysozyme) decreased after IONPs exposure, and immunological measures in the blood serum were significantly reduced compared to the control group. Molecular docking analysis revealed that IONPs primarily attached to the surface of SOD/CAT/albumin/lysozyme through hydrogen bonding and hydrophobic forces. Overall, this study emphasizes the ability of IONPs to induce oxidative damage by decreasing immunological profiles such as ACH50 (34.58 ± 2.74â¯Uâ¯mL-1), lysozyme (6.94 ± 0.82â¯Uâ¯mL-1), total Ig (5.00 ± 0.35â¯gâ¯dL-1), total protein (1.20 ± 0.17â¯gâ¯dL-1), albumin (0.52 ± 0.01â¯gâ¯dL-1) and globulin (0.96 ± 0.01â¯gâ¯dL-1) and sheds light on their potential toxic effects on tadpoles.
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Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Compostos Férricos
/
Muramidase
Limite:
Animals
Idioma:
En
Revista:
Environ Toxicol Pharmacol
Ano de publicação:
2024
Tipo de documento:
Article
País de publicação:
Holanda