NOS2 and glioma: Namely, the drug reduced NOS2 activity and expression in response to cytokines; increased NOS2 expression, leaving significantly unaffected the enzymatic activity, in LPS-treated microglia; and significantly increased NOS2 expression and activity in glioma activated-microglial cells (Dello Russo et al., 2009[12]; Lisi et al., 2014[29]).