Figure 3From: Capsaicin induces cell cycle arrest and apoptosis in human KB cancer cells Capsaicin induces cell cycle arrest at G 2 /M phase in KB cells. The cell cycle distribution was determined by propidium iodide staining and flow cytometry as described in the Methods. Data are summarized and presented as the means ± SE of two independent experiments. * P < 0.05, ** P < 0.01.Back to article page