The decreased expressions of mRNAs in CUMS-induced depression mice include Slc6a11, Hap1, Gad1, Gad2, Gng4, Slc32a1, Doc2g, Slc32a1, Magel2, Prkcd, Ngfr, Dusp1, Th, Itih3, Cacna2d2, Arc, Mbp, Peg10, Fos, and so on. Here, GAD2 is linked to major depressive disorder.