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Environmental Nanoplastics Induce Microglia Activation and Inflammatory Responses
Summary
Tiny plastic particles from pollution (called nanoplastics) can travel all the way into the brain, where new research shows they trigger the brain's immune cells to become overactive and cause inflammation. This matters because chronic brain inflammation has been linked to conditions like memory problems and neurodegenerative disease, raising concerns about the long-term effects of the plastic pollution we're increasingly exposed to in daily life.
As plastic production continues to increase worldwide, plastic waste is emitted. This plastic is broken down into small pieces (microplastics) due to indiscriminate disposal and weathering, and accumulates in the environment, causing serious environmental pollution. Microplastics are found in various ecosystems and the organisms that inhabit them, and microplastic particles are also detected in the human body, which is the top predator of the ecosystem. Recent studies have shown that nanoplastics (NPs) penetrate the brain.