When brain tissue samples were taken from over three dozen people who had lived in the industrial cities of Manchester and Mexico City, researchers found something very peculiar, unlike anything they had studied before. The city dwellers’ brains all had something in common, something that has yet to be fully understood: The frontal cortex of their brains was polluted with magnetite nanoparticles. The brain samples were obtained from people ranging in age from 3 to 92 who had died in fatal accidents; their brains were left intact.
Breathing fine particulate matter causes inflammation in the brain
There was ample evidence that the magnetite nanoparticles were taken in through the polluted air of the city. All signs indicated that the particles had penetrated their blood-brain barriers to congregate in the tissue of the frontal cortex. These newly discovered magnetite nanoparticles were shaped differently from what naturally occurs in the brain. In the brains of Alzheimer’s patients, researchers find higher than normal amounts of magnetite particles, indicating an inflammation factor, but these particles are always angular in shape. Continue reading »