Figure 1.

Bacteriostatic potency (minimal inhibitory concentration, MIC) of sulforaphane against 45 clinical isolates and 3 reference strains of H. pylori. Twenty-three bacterial strains were susceptible to clarithromycin (Cla^S) and metronidazole (Met^S), and the rest of the strains were resistant to clarithromycin (Cla^R), metronidazole (Met^R), or both antibiotics (Cla^R Met^R). Median MIC values for each of the four groups of strains were 2, 4, 4, and 2 μg/ml, respectively, and were not significantly different from each other. Each data point represents an individual strain, and means are indicated by horizontal bars.