Let-7b is significantly decreased in gastric mucosal specimens infected with <i>H.pylori</i>.

<p>(A) Relative expression of let-7b in gastric mucosal tissues from <i>H.pylori</i>-positive patients (n = 15) and <i>H.pylori</i>-negative normal individuals (n = 8). (B) Relative expression of let-7b in individual gastric mucosal specimen. Relative expression levels of let-7b were determined by qRT-PCR. All data were normalized by U6 snRNA. Data were expressed as mean ± S.D. from three independent experiments. ***p<0.001.