FIG. 1.

Relative numbers of CD4⁺ T cells present in gastral biopsy specimens of H. pylori-infected patients and uninfected control patients. T cells were isolated from gastral biopsy specimens as described in the text and processed for intracellular staining of cytokines and CD4. Thereafter, the cells were resuspended in PBS and analyzed by FACS. The figure shows mean numbers of antrum and corpus CD4⁺ T cells present in 100 μl of PBS, as measured by FACS. H.p., H. pylori.