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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1987-2-2
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pubmed:abstractText |
To clarify the role of the macrophage in the translocation of intestinal bacteria, groups (n = 10) of Swiss Webster mice (Immunocompetent) and C3H/HeJ mice (macrophage defective) were given bacitracin/streptomycin in their drinking water to eliminate the majority of the intestinal microflora. These mice were then "monoassociated" with a streptomycin-resistant strain of Escherichia coli. Forty-eight hours later, E coli was present in all animals at a concentration of 10(11)/g of cecum. In four separate experiments, E coli was recovered from 100% of the mesenteric lymph nodes (MLNs) of the immunocompetent Swiss Webster mice and from 10%, 40%, 30%, and 50% of the MLNs of macrophage-defective C3H/HeJ mice. Swiss Webster mice were then similarly monoassociated by antibiotic decontamination followed by administration of antibiotic-resistant, fluorescein-labeled E coli in their drinking water; cohort groups of mice were given fluorescein-labeled latex beads (1 micron in diameter) in their drinking water. Two, four, and 11 days later, the MLNs were removed and single cell suspensions were analyzed in the fluorescence-activated cell sorter. The fluorescein label was detected exclusively in the macrophage (esterase-positive) population. These results support the hypothesis that intestinal macrophages may play a key role in the transport of intestinal particles (including bacteria) into extraintestinal sites.
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pubmed:grant | |
pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
AIM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Jan
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pubmed:issn |
0004-0010
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
122
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
48-53
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pubmed:dateRevised |
2008-11-21
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pubmed:meshHeading |
pubmed-meshheading:3541854-Animals,
pubmed-meshheading:3541854-Bacterial Physiological Phenomena,
pubmed-meshheading:3541854-Cecum,
pubmed-meshheading:3541854-Escherichia coli,
pubmed-meshheading:3541854-Female,
pubmed-meshheading:3541854-Fluoresceins,
pubmed-meshheading:3541854-Humans,
pubmed-meshheading:3541854-Intestines,
pubmed-meshheading:3541854-Lymph Nodes,
pubmed-meshheading:3541854-Macrophages,
pubmed-meshheading:3541854-Mice,
pubmed-meshheading:3541854-Mice, Inbred C3H,
pubmed-meshheading:3541854-Pilot Projects,
pubmed-meshheading:3541854-Time Factors
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pubmed:year |
1987
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pubmed:articleTitle |
Role of the macrophage in the translocation of intestinal bacteria.
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pubmed:publicationType |
Journal Article,
Research Support, U.S. Gov't, P.H.S.
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