The concentrations of 8-oxodG in the stomach are
shown in Table 4. Compared with group 1 (no infection), group H1 (H. pylori infection), and group 8
(270 min stress loading), they showed 2.4 and 2.7-fold
increases in the level of 8-oxodG. Group H3 (H. pylori
infection, 50 mg/kg) exhibited a 34% decrease in 8-oxodG the level as compared with group H1 (H. pylori
infection). 50 and 100 mg/kg Wasabi extract (groups 9
and 10) decreased the level of 8-oxodG by 32–41% as
compared with group 8 (no infection, 270 min stress).
Group H8 (H. pylori infection, 270 min stress) showed a
significant 1.4-fold increase as compared with group H1
(H. pylori infection), but the leaf extract decreased the
levels of 8-oxodG by 41–48% (groups H9 and 10).