Interestingly, lithium also has some demonstrated efficacy in neurodegenerative disorders where MARCKS involvement has been proposed, namely Parkinson’s disease (PD; Kim et al., 2011; Lieu et al., 2014) and AD (Appleby and Cummings, 2013; Sofola-Adesakin et al., 2014). This evidence concerns the gene MARCKS and Parkinson disease.