HIVEP2 and Parkinson disease: In the RNA-seq data, compared with PD group, chr10_14066684_14004201_+62483-Hivep2 (circHivep2), chr7_75149088_75136298_-12790-Sv2b (circSv2b) and chr2_41113094_41110754_-2340-Lrp1b (circLrpib) were upregulated in the PD group, and chr2_169886586_169883526_+3060-Tshz2 (circTshz2) and chr8_79076538_ 79060250_+16288-Zfp827 (circZfp827) were downregulated in the EX-PD group.