This research study evaluates the neuroprotective potential of the novel peptide osmotin-derived 9-amino-acid (Os_9aa, C-T-Q-G-P-C-G-P-T) against α-syn (neuron-specific enolase promoter human alpha-synuclein (NSE-hαSyn)) and 1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine (MPTP)-induced PD models. This evidence concerns the gene SNCA and Parkinson disease.