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Infect Immun. 1972 August; 6(2): 134-141
Copyright © 1972 American Society for Microbiology. All Rights Reserved.

Parameters Affecting the Association of Vibrios with the Intestinal Surface in Experimental Cholera

R. Freter

1 Department of Microbiology, University of Michigan, Ann Arbor, Michigan 48104

ABSTRACT

Intestinal antibody (coproantibody) significantly reduced the adsorption of heat-killed Vibrio cholerae to the mucosa of in vivo isolated ileal loops of adult rabbits. This suggests a direct effect of coproantibody on adsorption, which appears to function in addition to the antibacterial mechanism described earlier. When antivibrio serum was administered passively into intestinal loops, it showed a predilection for the intestinal mucosa. In vivo adsorption of vibrios appeared to parallel their viability, i.e., vibrios killed by heat or in the presence of neomycin adsorbed significantly less than live vibrios. In contrast, in vivo adsorption was only slightly affected in the presence of bacteriostatic concentrations of tetracycline. Adsorption of Salmonella senftenberg and V. cholerae to slices of rabbit ileum in Krebs-Ringer solution appeared to involve different mechanisms, in that the former was strongly removed from the intestinal tissues by sodium lauryl sulfate, whereas vibrios were not affected by this agent. Triton X-100 increased the adsorption of vibrios, whereas rabbit bile and changes in pH had no effect.

Infect Immun. 1972 August; 6(2): 134-141
Copyright © 1972 American Society for Microbiology. All Rights Reserved.



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