Figure 2From: Down-regulation of transforming growth factor beta-2 expression is associated with the reduction of cyclosporin induced gingival overgrowth in rats treated with roxithromycin: an experimental study Representative microscopic fields. A: Normal connective tissue in group 1 (negative control); B-C: Extensive fibrosis in groups 2 and 3 (positive controls); D: Few areas with fibrosis in group 4 (treated group). Original magnificance 400×.Back to article page