Fig. 2From: Pterocellin A isolated from marine bryozoan Pterocella vesiculosa is cytotoxic to human HeLa cells via mitochondrial apoptotic processesPterocellin A toxicity against HeLa cells after 24, 48 and 72 h treatment, MTT assay. Bar graph showing the mean ± S.E.M, *p < 0.05, N = 3Back to article page