![]() The new finding reveals how they recruit help when needed, and that discovery could apply to any brain condition with an immunological component – including brain injury, neurodegenerative disease, stroke, multiple sclerosis and more. Understanding the role of microglia is essential because they are normally the only immune cells inside the brain. This process works so well that very few people develop symptomatic toxoplasmosis, the disease the parasite causes. These microglia release a unique immune molecule, IL-1a, that recruits immune cells from the blood to control the parasite in the brain, the scientists discovered. The UVA researchers found that the parasite, Toxoplasma gondii, is kept in check by brain defenders called microglia. ![]() A new discovery from the University of Virginia School of Medicine explains why, and that finding could have important implications for brain infections, neurodegenerative diseases and autoimmune disorders. ![]() More than two billion people are infected with a brain parasite spread by cats and contaminated meat, but most will never show symptoms.
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