Fig. 4.

Fig. 4. Fluorescence expression of orally administered acid-stressed Lactobacillus rhamnosus GG (LGG) adhered to the (A) ileum, (B) caecum, and (C) colon of mice. The LGG cells were labeled with fluorescein isothiocyanate (FITC) solution (1 mg/ml in 50 mmol/l sodium carbonate buffer, pH 8.9) before being administered to the mice. Control, non-treated cells; pH 4.5, treated with pH 4.5 medium for 24 h; pH 7.0, treated with pH 7.0 medium.

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