A growing body of research shows microplastics reach nearly everywhere in the body, creating vast and unknown dangers.
Director of the Marine Institute of Plymouth Professor Richard Thompson analyzes micro-plastics in a laboratory at the University of Plymouth, England, on February 27, 2023.Director of the Marine Institute of Plymouth Professor Richard Thompson analyzes micro-plastics in a laboratory at the University of Plymouth, England, on February 27, 2023.
Finding microplastics in more and more human organs “raises a lot of concerns,” given what we know about health effects in animals, studies of human cells in the lab, and emerging epidemiological studies, saidAn examination of the livers, kidneys and brains of autopsied bodies found that all contained microplastics, but the 91 brain samples contained on average about 10 to 20 times more than the other organs.
The paper also found the quantity of microplastics in brain samples from 2024 was about 50% higher from the total in samples that date to 2016, suggesting the concentration of microplastics found in human brains is rising at a similar rate to that found in the environment. Most of the organs came from the Office of the Medical Investigator in Albuquerque, New Mexico, which investigates untimely or violent deaths.
When it comes to these insidious particles, “the blood-brain barrier is not as protective as we’d like to think,” Almroth said, referring to the series of membranes that keep many chemicals and pathogens from reaching the central nervous system.last month that found microplastics in all 16 samples of bone marrow examined, the first paper of its kind.
This explosion of research has been made possible thanks to improved methods for measuring the quantity and type of microplastics present. Campen and colleagues used a technique called pyrolysis–gas chromatography–mass spectrometry to heat up and break down samples into smaller molecular components that are then chemically identified.on its website that “current scientific evidence does not demonstrate that levels of microplastics or nanoplastics detected in foods pose a risk to human health.
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