Fig. 4From: Evidence based anti-osteoporosis effects of Periplaneta americana L on osteoblasts, osteoclasts, vascular endothelial cells and bone marrow derived mesenchymal stem cellsKFX and PC substance induce apoptosis in osteoclasts. Cells are incubated with various concentrations of KFX and PC substance for 72 h, and then the induction of apoptosis is determined by Annexin V-FITC/PI staining analysis. Cell apoptosis data are quantified and presented as a histogram. Data from three independent assays are presented as the mean ± SD (n = 3). * represents * p < 0.05,**p < 0.01Back to article page