Fig. 1From: Inhibitory activities of selected Sudanese medicinal plants on Porphyromonas gingivalis and matrix metalloproteinase-9 and isolation of bioactive compounds from Combretum hartmannianum (Schweinf) barkInhibitory activities of seven methanolic plants extracts against MMP-9. B: bark. NNGH as positive control has 100% inhibition at concentration 100 μg/ml. Values were expressed as mean ± SD, n = 3. Values not followed by a common letter were significantly different at the level (p < 0.05)Back to article page