MAOA and hepatocellular carcinoma: RMT caused a reduction of glutamate ionotropic receptor NMDA type subunit 1(Grin1, p = 0.015), serine racemase (Srr, p ≤ 0.0001) and monoamine oxidase A (Maoa, p = 0.002) in Bl6 compared to the respective HCC group (Figure 6A–C).