FIG. 3.

Effect of orally administered L. paracasei F19 on the Lactobacillus-like community over time. DGGE analysis of amplicons generated in a nested PCR with primers Bact-0124-GCf and Uni-0515r. Children were administered L. paracasei F19 (I and II) or placebo (III and IV) for 4 weeks. Fecal samples were taken before the experiment (lanes 0), after 2 weeks of administration (lanes 2), and 2 weeks after administration had ceased (lanes 6). The PCR amplicon for L. paracasei F19 was concomitantly separated. The fragments in the profiles corresponding to F19 are indicated by the box.