This extensive range of functions aligns with implications of galanin in diverse pathologies, including anxiety disorders, depression, and epilepsy (Lang et al., 2015; Juhasz et al., 2014; Hökfelt et al., 2018; Kovac and Walker, 2013; Lerner et al., 2008; McColl et al., 2006; Fetissov et al., 2003; Jacoby et al., 2002; Mazarati et al., 2000; Drexel et al., 2018). The gene discussed is GAL; the disease is major depressive disorder.