Study Links Alzheimer’s to Smog & Pollution

Pollution and Smog Might be Causing Alzheimer’s Disease

Toxic magnetic nanoparticles from air pollution have been discovered in “abundant” quantities in human brains, according to a new study.

The study, published Monday in the Proceedings of the National Academy of Sciences (PNAS), is particularly alarming because other research recently raised the strong possibility of a link between such particles and Alzheimer’s disease.

This latest study “suggests that most magnetite found in the human brain, a magnetic iron oxide compound, comes from industrial air pollution. And because unusually high concentrations of magnetite are found in the brains of people with Alzheimer’s disease, the findings raise the specter of an alarming new environmental risk factor for this and other neurodegenerative diseases,” writes Science.

The researchers examined the brains of 37 people in Mexico City, Mexico, and Manchester, U.K., and discovered “abundant” amounts of magnetite and other nanoparticles deemed toxic.

The new research “suggests the particles can be inhaled and enter the brain through the olfactory nerve, which takes information about smells to the brain,” according to the Telegraph.

Full Story: Linking Alzheimer’s to Pollution, Study Finds Toxic Nanoparticles in Human Brains – Truthdig

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