Sarah Nicolas @sarah-nicolas.bsky.social · 27/05/2026We used a rat model of chronic low-grade hippocampal neuroinflammation by overexpressing IL-1β locally in the hippocampus mimicking the kind of inflammation seen in ageing and neurodegeneration also called «inflammageing ». Rats then had voluntary access to running wheels for several weeks. 🐀🏃 100 1
Sarah Nicolas @sarah-nicolas.bsky.social · 27/05/2026IL-1β impaired pattern separation, the ability to distinguish between similar memories, but left spatial learning intact. Exercise couldn’t rescue this deficit. 100 1
Sarah Nicolas @sarah-nicolas.bsky.social · 27/05/2026In fact, IL-1β blunted exercise-induced neurogenesis, particularly in the dorsal hippocampus. Exercise increased new immature neuron numbers in healthy controls, but this effect was significantly reduced in IL-1β animals. 100 1