Zhang et al. confirmed that the transcription of three major microglial markers, CX3CR1, purinergic receptor P2Y12 (P2RY12), and triggering receptor expressed on myeloid cells 2 (TREM2) was increased in the ACC [65] and HIPP [54] of suicide patients with SCZ or BD compared with psychiatric non-suicidal individuals. This evidence concerns the gene TREM2 and Behcet disease.