Figure 3. Gene expressions in periodontitis (N = 20) and gingivitis lesions (N = 21). The relative quantities of FOXP3 (A), TGF-ß1 (B), and IL-10 (C) were normalized to the relative quantity of GAPDH. Data are expressed as mean ± SE. The expressions of FOXP3 (p = 0.0325) and TGF-ß1 (p = 0.0475) were significantly higher in periodontitis than in gingivitis.