[Elimination from the digestive tract of a "gnotoxenic" child of a "Lactobacillus casei" strain, isolated from a commercial preparation: antagonistic effect of an "Escherichia coli" strain of human origin, demonstrated in "gnotoxenic" mice (author's transl)].
A strain of Lactobacillus casei from a pharmaceutical preparation became established in the digestive tract of an axenic child. It was eliminated by the first bacteria occurring after inoculation of the child's digestive tract with a human flora, before the child was taken out of the isolator. Using "gnotoxenic" mice, we found that the elimination of L. casei was due to a bactericidal effect of the Escherichia coli of human origin, within the digestive tract.
D000191:Actinomycetaceae / Q000254:growth & development; D000818:Animals; D000898:Antibiosis; D001439:Bacteroides / Q000254:growth & development; D004064:Digestive System / Q000382:microbiology*; D013293:Enterococcus faecalis / Q000254:growth & development; D004926:Escherichia coli / Q000254:growth & development*; D005243:Feces / Q000382:microbiology; D005856:Germ-Free Life; D006801:Humans; D007231:Infant, Newborn; D007780:Lacticaseibacillus casei / Q000254:growth & development*; D051379:Mice; D010357:Patient Isolators
Elimination du tube digestif d'un enfant "gnotoxénique" d'une souche de Lactobacillus casei, issue d'une préparation commerciale: démonstration chez des souris "gnotoxéniques" du rôle antagoniste d'une souche de Escherichia coli d'origine humaine