Such a conclusion is also supported by earlier studies showing that lithium treatment can increase gray matter volume in BD brains, that mood stabilizers appear to prevent glial reduction in BD brain,9,17 and that lithium protected astrocytes from apoptosis by inhibiting glycogen synthase kinase-3β inhibition,39 which elevates bcl-2 levels.40 Thus, it is plausible that the effect of lithium to increase the level of bcl-2 in astrocytes is also important to this glial-targeted effect. Here, BCL2 is linked to Behcet disease.