NAIF1 and Parkinson disease: To explore the contribution of miR-942-5p and NAIF1 to the development of PD, the SH-SY5Y cells were transfected with mimic control, miR-942-5p mimic, control plasmid, NAIF1 plasmid, miR-942-5p mimic + control plasmid, or miR-942-5p mimic + NAIF1 plasmid for 48 h.