DSEL and major depressive disorder: DSEL-AS1 is a lncRNA gene and was previously associated with unipolar depression, asparagine levels, bipolar disorder, body mass index and gut microbiome levels (Shi et al., 2011; Rhee et al., 2013; Winham et al., 2014; Ishida et al., 2020), but no biological pathways or interactions were reported for this lncRNA.