Scientists now suggest that magnetite, a minuscule particle found in air pollution, may trigger the onset of Alzheimer's symptoms.
Scientists now suggest that magnetite, a minuscule particle found in air pollution, may trigger the onset of Alzheimer’s symptoms.Scientists now suggest that magnetite, a minuscule particle found in air pollution, may trigger the onset of Alzheimer’s symptoms., wood fires, coal-fired power stations, brake pad friction, and engine wear. It is a common air pollutant that can enter the brain through the nose.
Their pioneering study exposed mice and human neuronal cells in the lab to toxic air pollution particles to understand their role in the development of Alzheimer’s disease.have a genetic origin, the environment and lifestyle choices seem to have a major impact on the disease,” says Associate Professor Gunawan.
“However, this is the first study to look at whether the presence of magnetite particles in the brain can indeed lead to signs of Alzheimer’s,” she said.During the four-month study, both healthy and genetically susceptible mice were exposed to iron, magnetite, and diesel hydrocarbons. Magnetite consistently mirrored Alzheimer’s pathologies like loss of essential brain cells, buildup of amyloid plaque, and increased stress, anxiety, and short-term memory impairment in the exposed mice.
“We breathe in these particles, and they have the troubling ability to enter the brain through our nasal passages, sidestepping the protective blood-brain barrier,” she added.In both mice and human cells, magnetite triggered an immune response, leading to inflammation and oxidative stress, which contribute to dementia. “Magnetite seems to cause neurodegeneration even in healthy mice, a concerning finding,” says Dr. Charlotte Fleming, co-author of the study.
France Dernières Nouvelles, France Actualités
Similar News:Vous pouvez également lire des articles d'actualité similaires à celui-ci que nous avons collectés auprès d'autres sources d'information.
Scientists create 5 new isotopes to learn how neutron star collisions forge goldRobert Lea is a science journalist in the U.K. whose articles have been published in Physics World, New Scientist, Astronomy Magazine, All About Space, Newsweek and ZME Science. He also writes about science communication for Elsevier and the European Journal of Physics. Rob holds a bachelor of science degree in physics and astronomy from the U.K.
Lire la suite »
Scientists Just Discovered a New Type of MagnetismIn an atomically thin stack of semiconductors, a mechanism unseen in any natural substance causes electrons’ spins to align.
Lire la suite »
Scientists Gain New Insights Into How Small Intestine WorksIt was the ancient Greeks who first divided the 20-foot length of the small intestine into three parts: The duodenum, the jejunum and the ileum.
Lire la suite »
Scientists Discover New Life-Saving Benefit of Ozempic and SemaglutideScience, Space and Technology News 2024
Lire la suite »
Cambridge Scientists Uncover New Way in Which Fasting Helps Reduce InflammationScience, Space and Technology News 2024
Lire la suite »