Figure 1  .

Lumen to blood clearance of dextran five hours after administration of the labelled probe into the excluded colonic segment of controls (n=10) and rats recolonised with a single bacterial strain (Sv, Streptococcus viridans, n=6; Kp, Klebsiella pneumoniae, n=6; Ec, Escherichia coli, n=7; Bf, Bacteroides fragilis, n=7; and Lb, Lactobacillus brevis, n=9). Clearance is expressed as a percentage of the administered dose that accumulated in the intravascular space and normalised by length of the excluded colonic segment. Values are mean (SEM). No significant differences were found.