In support of these rodent findings a number of studies have shown an association between alcoholism and SNPs in the genes for galanin or Gal3 receptor, but not Gal1 and Gal2 (Belfer et al., 2006; Belfer et al., 2007; Nikolova et al., 2013) and most recently, the GG haplotype has been shown to be associated with problem drinking in women (Nikolova et al., 2013). Here, LGALS2 is linked to alcohol drinking.