FIG. 2.

Neutrophil and monocyte oxidative burst response upon fMLP stimulation after preincubation with sonicates from H. pylori strains isolated from seven subjects with mild to moderate gastritis (M/M) and from five subjects with severe gastritis (S). Results are expressed as neutrophil or monocyte response with fMLP treatment or without (i.e., after preincubation in sonicate or after preincubation in medium). Each strain was examined by using cells from four to six different healthy volunteers, and the results are expressed as the mean value from the results for each strain (horizontal bars indicate median values).