Figure 3

Adhesion inhibition of piperine on H. pylori 60190. A) The inhibition of H. pylori adhesion to gastric adenocarcinoma cells by various concentrations of piperine; B) The inhibition of H. pylori 60190 adhesion to gastric adenocarcinoma cells by 100 μM of piperine or H. pylori pretreated with 100 μM of piperine for 24 hours. The level of adhesion was determined by urease test and the piperine-treated samples were compared to the DMSO-treated control. H. pylori 60190 adhesion to gastric adenocarcinoma cells was inhibited by piperine in a dose dependent manner. The image is representative of three independent experiments and bars represent means ± SEM. *p <0.05, **p <0.01.