Deregulation of PGC‐1α/FNDC5/BDNF pathway was indicated in PD that may be a result of aberrant expression of miR‐193b, verifying the importance of PGC‐1α/FNDC5/BDNF pathway and miR‐193b as well as their associations in PD pathology. This evidence concerns the gene PPARGC1A and Parkinson disease.