Summary: A fading sense of smell may be one of the earliest warning signs of Alzheimer’s disease, and new research reveals why. Scientists found that microglia, immune cells in the brain, mistakenly remove nerve fibers connecting the locus coeruleus and olfactory bulb—two regions essential for processing odors. This immune-driven pruning occurs when hyperactive neurons display altered membranes, marking them as …
Read More »Immune Attack on Smell Pathways May Signal Early Alzheimer’s
