Figure 4: Quantification of cytokines by periodontal disease. Expression TNF-α, IL-10, IL-6, and IL-2 in gingivitis (n=21), chronic periodontitis (n=23), and healthy (n=2). Systemic cytokines were quantified using the CBA and by Flow Cytometer 50,000 events were acquired and analyzed using FCAP Array software. The concentrations obtained were expressed in pg/ml and compared between groups by a bivariate analysis. The data are represented by the median for each group.