MAOB and Parkinson disease: Moreover, PCSEE contains monoterpenes that protected against the MAO-B substrate 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP) SN cell damage and MPTP-induced motor deficits in PD model [37], inhibited DA and norepinephrine (NE) transporters [38], and showed antidepressant effects with catecholamine neurotransmitters regulation [39,40].