AI Article Synopsis
- The study investigates the cytotoxic effects of different sizes of zinc oxide nanoparticles (ZnO NPs) on the nervous system, particularly in SHSY5Y cells.
- It highlights the role of reactive oxygen species and the release of zinc ions in causing damage, including apoptosis and changes to the cell's structure.
- Results indicate that larger ZnO NPs have greater toxic effects, emphasizing the need for further research on their safety and impact on human health.
Article Abstract
Due to the widespread applications of zinc oxide nanoparticles (ZnO NPs), the potential exposure of workers, consumers, and scientists to these particles has increased. This potential for exposure has attracted extensive attention in the science community. Many studies have examined the toxicological profile of ZnO NPs in the immune system, digestive system, however, information regarding the toxicity of ZnO NPs in the nervous system is scarce. In this study, we detected the cytotoxicity of two types of ZnO NPs of various sizes - ZnO NPs and ZnO NPs - and we characterized the shedding ability of zinc ions within culture medium and the cytoplasm. We found that reactive oxygen species played a crucial role in ZnO NP-induced cytotoxicity, likely because zinc ions were leached from ZnO NPs. Apoptosis and cytoskeleton changes were also toxic responses induced by the ZnO NPs, and ZnO NPs induced more significant toxic responses than ZnO NPs in SHSY5Y cells. In conclusion, ZnO NPs induced toxic responses in SHSY5Y cells in a size-dependent manner, which can probably be attributed to their ion-shedding ability.
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Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC5677299 | PMC |
| http://dx.doi.org/10.2147/IJN.S149070 | DOI Listing |
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