To ascertain whether human-derived TAAR1 undergoes alterations in PD, we consulted the GEO database, specifically the GSE198009 dataset, which contrasts the transcriptome data differences between an in vitro PD model, which was constructed by stimulating SH-SY5Y cells with 6-hydroxydopamine (6-OHDA), and a control group [45]. The gene discussed is TAAR1; the disease is Parkinson disease.