We can't find the internet
Attempting to reconnect
Something went wrong!
Hang in there while we get back on track
Nephrotoxicity of Single or Combined Exposure to Microplastics (MPs) and Sodium Lauryl Sulfate (SLS) in African Catfish (Clarias gariepinus)
AI summary Read the abstract
Combined exposure of African catfish to polyethylene microplastics and the detergent sodium lauryl sulfate caused greater kidney damage than either pollutant alone, indicating synergistic nephrotoxicity in freshwater fish.
It is unclear how fish in freshwater ecosystems are affected by the combined presence of microplastics (MPs) and anionic surfactant detergents. So, our investigations focus on the nephrotoxic effects of both Polyethylene microplastics (PE-MPs) and Sodium lauryl sulfate (SLS) in single or combined exposure on African Catfish (Clarias gariepinus). In the current study, rearing water of catfish (Clarias gariepinus) was supplied with 0, 10 mg/L PE-MPs, 4 mg/L SLS, or their combination for 15 days. Blood analysis for the kidney functions and histological appraisals for the renal tissue integrity, collagen density (types I & III), and polysaccharide deposits were investigated. Exposure to the irregular-shaped PE-MPs (10 mg/L) or SLS (4 mg/L) revealed nephrotoxicity affecting the kidney of the exposed fish. Significant increases in the serum creatinine and uric acid levels and severe pathological lesions were recorded in the renal tissue of PE-MPs (10 mg/L) and SLS (4 mg/L)-exposed groups. In addition, significantly higher fibrosis as well as hypoglycemia were observed in all the exposed groups compared to the control group. Nevertheless, the combined exposure to these substances revealed non-significant differences in the serum uric acid level and mild pathological lesions as well as lower fibrosis and hypoglycemia. In conclusion, PE-MPs and SLS are nephrotoxic for fish either singularly or in combination. Unexpectedly, an antagonistic effect in the form of lower nephrotoxicity was observed upon the combined exposure of 10 mg/L PE-MPs + 4 mg/L SLS might be due to some interaction between both substances that altered their toxicity.
More Papers Like This
Toxicity of co-exposure of microplastics and lead in African catfish (Clarias gariepinus)
AI summary Read the abstract
Researchers exposed African catfish to lead, microplastics, and a combination of both for 15 days and found that the combined exposure was more harmful than either pollutant alone. The mixture caused the greatest damage to blood cells, triggered stronger inflammatory responses, and disrupted the fish's antioxidant defenses. Since microplastics can carry heavy metals like lead on their surfaces, this study shows how microplastics may amplify the toxic effects of other pollutants in freshwater fish that people eat.
Virgin microplastics cause toxicity and modulate the impacts of phenanthrene on biomarker responses in African catfish ( Clarias gariepinus )
AI summary Read the abstract
Researchers investigated the impacts of virgin and phenanthrene-loaded polyethylene microplastic fragments on juvenile African catfish. The study found that even virgin microplastics caused toxicity and altered biomarker responses, and that microplastics modulated the toxic effects of phenanthrene, suggesting microplastics can act as both independent stressors and carriers of chemical contaminants.
Combined exposure to polystyrene nanoplastics and bisphenol A induces hepato- and intestinal-toxicity and disturbs gut microbiota in channel catfish (Ictalurus punctatus)
AI summary Read the abstract
Researchers exposed channel catfish to nanoplastics and bisphenol A, both alone and combined, and found the combination caused more severe liver and intestinal damage than either substance alone. The co-exposure also disrupted gut bacteria in ways that amplified toxicity. Since nanoplastics and BPA commonly co-exist in polluted water, their combined effects on aquatic organisms may be worse than what single-pollutant studies suggest.
A multi-biomarker approach to assess the exposure effects of MPs and/or sodium lauryl sulfate on Clarias Gariepinus
AI summary Read the abstract
Exposure of African catfish (Clarias gariepinus) to polyethylene microplastics (10 mg/L) and the anionic surfactant sodium lauryl sulfate individually caused similar levels of harm, including deteriorated blood indices, elevated liver enzymes, reduced antioxidant capacity, and increased inflammatory markers, with histological damage observed in multiple organs. The co-occurrence of microplastics and household surfactants in freshwater systems poses a combined threat to fish health, with implications for ecosystems receiving both types of pollution.
Individual and Combined Toxic Effects of Nano-ZnO and Polyethylene Microplastics on Mosquito Fish (Gambusia holbrooki)
AI summary Read the abstract
Researchers studied the individual and combined effects of polyethylene microplastics and zinc oxide nanoparticles on mosquito fish. The combination caused greater damage to liver tissue, blood parameters, and antioxidant systems than either pollutant alone. The findings suggest that microplastics interacting with other environmental contaminants can amplify toxic effects in aquatic organisms.
Research digests by email
When a large batch of papers lands in the Atlas, we read through it and send a short write-up of what stood out.