N-Methyl-N-nitrosourea (MNU)-induced gastric cancer model. C57BL/6 mice were treated with 5 cycles of MNU (240 ppm) treatment in alternate weeks, followed by gavage with S. anginosus (every 3 days, n = 11), H. pylori SS1 (every 3 days, total for 5 doses within 2 weeks, n = 18), or BHI broth (every 3 days, n = 13) until week 36.
