Source:http://linkedlifedata.com/resource/pubmed/id/10444455
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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2 Pt 1
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pubmed:dateCreated |
1999-9-23
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pubmed:abstractText |
Enteric nematode infections lead to increased interleukin (IL)-5 expression, eosinophilic inflammation, and intestinal smooth muscle hypercontractility. Although eosinophils release inflammatory mediators that cause smooth muscle contraction, the role of IL-5 and eosinophils in enteric smooth muscle hypercontractility is unclear. IL-5-deficient mice and their wild-type controls were infected with the nematode Trichinella spiralis. Intestinal parasites and eosinophils were counted, and jejunal longitudinal muscle contractility was assessed. During infection, IL-5 gene expression increased significantly in wild-type mice and was accompanied by significant intestinal eosinophilia in wild-type but not IL-5-deficient mice. Although both strains developed increased muscle contractility during infection, contraction was significantly less in the IL-5-deficient mice at days 16 and 21 postinfection. In addition, parasite expulsion was transiently delayed at day 16 in IL-5-deficient mice. Thus, in the nematode-infected mouse, IL-5 appears essential for intestinal eosinophilia and contributes to, but is not essential for, the development of muscle hypercontractility. IL-5 also appears to play a minor role in expelling a primary T. spiralis infection from the gut.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:month |
Aug
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pubmed:issn |
0002-9513
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
277
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
G400-8
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pubmed:dateRevised |
2009-11-19
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pubmed:meshHeading |
pubmed-meshheading:10444455-Animals,
pubmed-meshheading:10444455-Basophils,
pubmed-meshheading:10444455-Carbachol,
pubmed-meshheading:10444455-Cell Count,
pubmed-meshheading:10444455-Eosinophils,
pubmed-meshheading:10444455-Gastrointestinal Motility,
pubmed-meshheading:10444455-Gene Expression,
pubmed-meshheading:10444455-Interleukin-5,
pubmed-meshheading:10444455-Intestines,
pubmed-meshheading:10444455-Larva,
pubmed-meshheading:10444455-Mice,
pubmed-meshheading:10444455-Mice, Inbred C57BL,
pubmed-meshheading:10444455-Mice, Knockout,
pubmed-meshheading:10444455-Muscle, Skeletal,
pubmed-meshheading:10444455-Trichinella spiralis,
pubmed-meshheading:10444455-Trichinellosis
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pubmed:year |
1999
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pubmed:articleTitle |
IL-5 contributes to worm expulsion and muscle hypercontractility in a primary T. spiralis infection.
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pubmed:affiliation |
Intestinal Diseases Research Program, Department of Medicine, McMaster University, Hamilton, Ontario, Canada L8N 3Z5.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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