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, FOS is linked to major depressive disorder.