Bacteria found in Alzheimer's brains
Alzheimer's disease is a neurodegenerative disease that results in cognitive decline, and eventually death. In the brain, the disease causes neurons to die and break down, and involves high levels of a peptide called amyloid and aggregations of a protein called tau. However, scientists are coming to appreciate that inflammation may also play a role. "Alzheimer's brains usually contain evidence of neuroinflammation, and researchers increasingly think that this could be a possible driver of the disease, by causing neurons in the brain to degenerate," says David Emery, a researcher from the University of Bristol, and an author on the study, which was recently published in Frontiers in Aging Neuroscience . So, what's causing this inflammation? Some genetic risk-factors for Alzheimer's disease can have effects on the inflammatory response, but infection may also play a role. " Neuroinflammation in the brain may be a reaction to the presence of bacteria...