NIH R01 · 2025
Prenatal inflammation disrupts blood-brain barrier development and long-term function
SUMMARY Maternal immune activation (MIA) during fetal development increases risk for neurodevelopmental disorders (NDDs) later in the offspring life. Chronic microglial activation in the adult offspring exposed to gestational MIA leads to a range of altered behaviors. Yet, the developmental mechanisms whereby MIA induces this sustained activation of offspring brain microglia across the lifespan are not understood. Systemic inflammation triggered during adulthood was shown to disrupt blood-brain barrier (BBB) function, inducing microglial activation, neuroinflammation and leading to the progressive emergence of neuropathologies. Even though comparable outcomes are observed in adult offspring…
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