Figure 3. Long-standing RA patients with low IFNα levels exhibited a depletion of all endothelial progenitor populations.

Pre-EPC, EPC and mEPC counts in early (ERA) and long-standing (LRA) Rheumatoid Arthritis patients were analyzed according to their IFNα serum levels. Healthy donors (HC) and SLE patients were included as both healthy and disease controls. Differences were assessed by Kruskal-Wallis test and Dunn’s multiple comparisons post hoc test. *p<0.05, **p<0.01.