Online database search revealed that 13 DEPs (i.e., OLIG1, KIBRA, RAI1, FGFR2, DDC, MED22, SLIT2, LMTK3, CSMD1, COX3, FSTL1, GRIK4, CRHBP) were associated with depression. Here, FSTL1 is linked to depressive disorder.