451-Landscapes of Viral Encephalitis and Synaptopathy

Paper Talk · Jan 30, 2026 · 18m

Research published in 2026 identifies how viral encephalitis leads to permanent brain dysfunction through long-lasting epigenetic changes in neurons. Using a "viral déjà vu" mouse model, scientists discovered that even after an infection is cleared, interferon-gamma (IFNγ) signaling triggers a persistent closing of chromatin at sites responsible for synaptic function. This process causes a durable reduction in synaptic density and altered neuronal excitability, which explains why patients often suffer from chronic seizures and cognitive decline. The study demonstrates that these structural…