Figure 2From: Pro-oxidant status and matrix metalloproteinases in apical lesions and gingival crevicular fluid as potential biomarkers for asymptomatic apical periodontitis and endodontic treatment responseMMP-9 and MMP-2 enzymatic forms in apical lesions and healthy periodontal ligament. Representative MMP-9 and MMP-2 enzymatic forms identified by gelatin zymography. B. MMP-9 and MMP-2 enzymatic forms identified by immunowestern blot. SMW: Standard of molecular weight (kD); AL: Apical lesions; PDL: Healthy periodontal ligament; proMMP-9 and proMMP-2: Proenzyme forms; aMMP-9 and aMMP-2: Active enzyme forms.Back to article page