Invisible Invaders: How Microplastics Sneak Into Your Brain
Arthur T Knackerbracket has processed the following story:
Researchers have discovered that microplastics, once ingested, travel from the gut to tissues such as the liver, kidneys, and brain, potentially causing significant health issues. The team's findings emphasize the critical link between gut health and overall well-being, with ongoing studies exploring how diet and gut microbiota interact with microplastic absorption. Credit: SciTechDaily.com
It's happening every day. From our water, our food, and even the air we breathe, tiny plastic particles are finding their way into many parts of our body.
But what happens once those particles are inside? What do they do to our digestive system?
In a recent paper published in the journal Environmental Health Perspectives, University of New Mexico researchers found that those tiny particles - microplastics - are having a significant impact on our digestive pathways, making their way from the gut and into the tissues of the kidney, liver, and brain.
Research continues to show the importance of gut health. If you don't have a healthy gut, it affects the brain, it affects the liver and so many other tissues. So even imagining that the microplastics are doing something in the in the gut, that chronic exposure could lead to systemic effects.
[...] While other researchers are helping to identify and quantify ingested microplastics, Castillo and his team focus on what the microplastics are doing inside the body, specifically to the gastrointestinal (GI) tract and to the gut immune system.
Over a four-week period, Castillo, postdoctoral fellow Marcus Garcia, PharmD, and other UNM researchers exposed mice to microplastics in their drinking water. The amount was equivalent to the quantity of microplastics humans are believed to ingest each week.
Microplastics had migrated out of the gut into the tissues of the liver, kidney and even the brain, the team found. The study also showed the microplastics changed metabolic pathways in the affected tissues.
In Vivo Tissue Distribution of Polystyrene or Mixed Polymer Microspheres and Metabolomic Analysis after Oral Exposure in Mice" by Marcus M. Garcia, Aaron S. Romero, Seth D. Merkley, Jewel L. Meyer-Hagen, Charles Forbes, Eliane El Hayek, David P. Sciezka, Rachel Templeton, Jorge Gonzalez-Estrella, Yan Jin, Haiwei Gu, Angelica Benavidez, Russell P. Hunter, Selita Lucas, Guy Herbert, Kyle Joohyung Kim, Julia Yue Cui, Rama R. Gullapalli, Julie G. In, Matthew J. Campen, and Eliseo F. Castillo, 10 April 2024, Environmental Health Perspectives.
DOI: 10.1289/EHP13435
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