Linked Life Data

15351034

Source:http://linkedlifedata.com/resource/pubmed/id/15351034

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
3
pubmed:dateCreated
2004-9-7
pubmed:abstractText
Helicobacter pylori colonizes the gastric mucosa of human and causes chronic gastritis. The previous studies have demonstrated that gamma interferon (IFN-gamma) but not tumor necrosis factor-alpha (TNF-alpha) plays a critical role in pathogenesis of gastritis induced by H. pylori infection. In this study we investigated the induction of gastritis induced by H. felis infection in TNF-alpha-deficient mice, comparing with IFN-gamma-deficient mice. The scores of gastritis and epithelial changes of TNF-alpha-deficient mice and IFN-gamma-deficient mice were significantly lower than that of C57BL/6 mice. Moreover, the degrees of gastritis and epithelial changes of TNF-alpha-deficient mice were rather low compared with that of IFN-gamma-deficient mice. In spleen cell cultures stimulated with heat-killed H. felis, IFN-gamma production by TNF-alpha-deficient mice and TNF-alpha production by IFN-gamma-deficient mice were significantly reduced compared with those in C57BL/6 mice. These results suggested that TNF-alpha is involved in pathogenesis of gastritis induced by H. felis infection as IFN-gamma and that an interaction between TNF-alpha and IFN-gamma might be required in pathogenesis of gastritis induced by Helicobacter infection.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0882-4010
pubmed:author
pubmed:issnType
Print
pubmed:volume
37
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
119-24
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Tumor necrosis factor-alpha is required for gastritis induced by Helicobacter felis infection in mice.
pubmed:affiliation
Department of Bacteriology, Hirosaki University School of Medicine, 5 Zaifu-cho, Hirosaki, Aomori 036-8562, Japan.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't