Figure 2.
A) Analysis of cell free circulating mtDNA (ccf-mtDNA) in CSF, analysed using two mtDNA targets: MTND1 and MTDN4 showing mean mtDNA copy number per microliter CSF (with 95% CI) for PD cases at t=0 /t=18 months (shaded) and matched controls (unshaded). Asterisks indicate statistical significance (***P=10-3 and ***P=10-4). B) Receiver operating characteristic curve analysis of MTND1 (dotted line) and MTND4 (solid line) calculated ccf-mtDNA; where area under curve (AUC) =0.81 =0.84 and P=2x10-2 P=1x10-2, respectively. Dashed line indicates reference line.