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Results for “DYSENTERY, BACILLARY/experimental”

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At least 19 recordsLinked to original sources
PubMed1956

Experimental enteric Shigella and Vibrio infections in mice and guinea pigs.

A method has been devised for inhibiting the normal enteric flora, permitting long term asymptomatic enteric infections of mice and guinea pigs with streptomycin-resistant strains of Shigella flexneri or Vibrio cholerae. Introduction of a streptomycin-resistant strain of E. coli into the intestinal tract of experimental animals resulted in a rapid elimination of the enteric pathogens studied. No in vitro production of antibiotic substances by this coli strain could be demonstrated. Active and oral passive immunization did not noticeably influence the number of Shigella or Vibrio organisms recoverable from the feces of infected animals.

Animals↗
PubMed1960

Studies in the pathogenesis of experimental dysentery intoxication. Production of lesions by introduction of toxin into the cerebral ventricles.

The introduction of Shiga toxin into the ventricular system of the brain with major location in the third ventricle resulted in a response similar to that following the administration of the toxin either intravenously or by cross-circulation. The intravenous administration at the dosage level employed would have elicited no response. These observations lend support to the hypothesis that Shiga toxin activates some mechanisms in the central nervous system which are capable of producing visceral lesions. These mechanisms are those which control the vasomotor components of homeostasis. This hypothesis permits an explanation of the proximo-distal and intramural features of the lesion.

Bacillus↗