<p>6-week-old C57BL/6 mice were fed <i>L. casei</i> or <i>B. breve</i> or placebo daily (each, 1×10<sup>9</sup>) by oral gavage for 3 months (n = 8). Intestinal lamina propria lymphocytes were analyzed for cytokine production by flow cytometry. Percentages of IL-10-, IL-17-, and IFN-γ-producing CD4<sup>+</sup> T cells of mice administered with <i>L. casei</i> (<b>A</b>) or <i>B. breve</i> (<b>C</b>) were shown. *P<0.05. (<b>B</b>, <b>D</b>) Representative FACS dot plots showing production of IL-10 and IFN-γ gated on colonic CD4<sup>+</sup> T cells in the indicated mice.</p
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