Figure 4.
Appearance of human faecal bacteria labelled ex vivo. Bacteria were harvested from the human colon at colonoscopy, labelled as described in the Materials and Methods section and reinstilled into the human colon. Images were then obtained at confocal laser endomicroscopy. (A) Image of human terminal ileum showing bacteria labelled ex vivo that have entered the epithelial cells (orange arrow). (B) Magnified image.