Hippocampus Immunoreactivity (IMAGE) Proceedings of the National Academy of Sciences Caption Hippocampus immunoreactivity, a marker of neuronal activity, (normal pattern, left) is reduced in mice over-expressing alpha- synuclein in the brain (center), but this marker is preserved in overexpressing mice co-treated with EHT and caffeine (right). Credit Image courtesy of M. Maral Mouradian Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.