Pollution-Derived Magnetic Particles Detected in Human Brain

Anthropogenic (combustion-derived) nanoparticles of magnetite, a strongly magnetic mineral, have been discovered to be lodged in human brains — and scientists think these tiny particles could be a possible cause of Alzheimer’s disease. Transmission electron micrographs of brain thin sections, identifying two distinct types of magnetite morphologies: rounded particles (left) and angular particles (right). Image credit: Barbara A. Maher et al, doi: 10.1073/pnas.1605941113. Prof. Barbara Maher, lead author on the study and a researcher at the University of Lancaster, and her colleagues from Mexico and the United Kingdom found abundant magnetic particles in the brain tissue from 37 individuals aged three to 92-years-old who lived in Mexico City and Manchester. “The brain magnetic analyses identify the presence in all of the samples of strongly magnetic, easily magnetized nanoparticles, with concentrations…


Link to Full Article: Pollution-Derived Magnetic Particles Detected in Human Brain