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Polystyrene nanoplastic exposure leads to abnormal brain development by dysregulation of neural stem cell functions
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Effects of Polystyrene Nanoplastics on the Biology of Human Neural Stem Cells and Human Cerebral Organoids.
This study investigated the effects of polystyrene nanoplastics on human neural stem cells and human cerebral organoids, examining whether nanoplastics that have been shown to cross the blood-brain barrier and placenta can disrupt normal brain development. Given the lack of prior research on nanoplastic effects on the developing brain, the findings carry significant implications for understanding neurodevelopmental risks from early-life plastic exposure.
Maternal exposure to polystyrene nanoplastics causes brain abnormalities in progeny
Researchers found that maternal exposure to polystyrene nanoplastics caused brain abnormalities in offspring, demonstrating that nanoplastics can cross maternal barriers and affect neurological development in progeny with implications for developmental toxicology.
Molecular effects of polystyrene nanoplastics on human neural stem cells
Researchers exposed human brain stem cells to tiny polystyrene nanoplastics and found they caused oxidative stress, DNA damage, inflammation, and cell death. These findings suggest that nanoplastics could potentially harm brain development if they reach neural tissue, though more research is needed to understand real-world exposure levels.
Maternal exposure to polystyrene nanoplastics causes brain abnormalities in progeny
When pregnant mice were exposed to polystyrene nanoplastics, their offspring showed abnormal brain development including changes in neural stem cell function, altered brain structure, and cognitive problems. The effects were gender-specific, with some deficits appearing more strongly in one sex. This study raises concerns that nanoplastic exposure during pregnancy could increase the risk of neurodevelopmental problems in children.
[Effects of nanopolystyrene nanoplastic exposure on the development and neurotoxicity of fetal rats during gestation].
Researchers found that gestational exposure to polystyrene nanoplastics in rats caused dose-dependent reductions in fetal body weight, body length, and brain development, with smaller 25 nm particles producing more pronounced neurotoxic effects than 50 nm particles.