In an α-synuclein-driven PD model, miR-155 deletion prolonged lifespan in SOD1G93A mice and prevented experimental autoimmune encephalomyelitis (EAE) induction, as well as decreased microgliosis and neuronal loss (Thome et al., 2016; Connell et al., 2011; Murugaiyan et al., 2015; Hu et al., 2013; Ksiazek-Winiarek et al., 2017; Mycko et al., 2015; Zhang et al., 2014; Zhang and Braun 2014; Zhang and Braun 2015). The gene discussed is SNCA; the disease is Parkinson disease.