MMP2 and juvenile idiopathic arthritis: In another study, the following salivary biomarkers have recently been detected in children with JIA and controls in similar levels, not in line with our study: TNF, TNFRSF1B, MMP-2, MMP-3, IL-1alpha (IL-1α), IL-1β, IL-6Rα, IL-8, S100A8, CCL2, CCL3, IL-10, CCL11, and CXCL9 [29].