SRRM2 and Parkinson disease: Expression of SRRM2 has already been assessed by Shehadeh et al. [12] as showed a downregulation in long transcript of SRRM2 in substantia nigra in a good agreement with both our data on PBMCs in this study and a microarray study on PD patients′ PBMCs [GEO Accession GSE18838] PD patients [12].