A team from the Faculty of Medicine at Université Laval and the research centre at CHUQ (Centre hospitalier universitaire de Québec) has discovered a natural defense mechanism that the body deploys to combat nerve cell degeneration observed in persons with Alzheimer’s disease (AD). Investigators Alain R. Simard, Denis Soulet, Genevieve Gowing, Jean-Pierre Julien and Serge Rivest describe this major discovery in the February 16th issue of the scientific journal Neuron.