Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2
pubmed:dateCreated
2004-5-17
pubmed:abstractText
Infection with Trypanosoma cruzi in C57BL/6 mice leads to a progressive fatal disease accompanied by thymocyte depletion, which is not related with a higher parasite burden but with increased serum levels of tumour necrosis factor alpha (TNF- alpha). Because this situation may result from an excessive inflammatory syndrome, mice were now given anti-TNF-alpha mAbs throughout their acute infection, or subjected to a LPS desensitization protocol before parasite challenge. Treatment with anti-TNF-alpha mAbs failed to ameliorate thymocyte depletion but shortened survival time and increased parasite load. Pretreatment with LPS (desensitization followed by a sublethal LPS dose) prolonged survival time with a trend to reduce parasitemias and TNF-alpha serum concentrations. Given that pentoxifylline (PTx) interferes with in vitro LPS tolerance, experiments by administering PTx in combination with the tolerance-inducing LPS doses were also performed. Such schedule significantly reduced mortality, TNF-alpha and IL-6 serum concentrations, and CD4+ CD8+ thymocyte loss. LPS pretreatment allowed a better infection control and protected from the accompanying tissue damage.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
0928-8244
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
41
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
123-31
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed:year
2004
pubmed:articleTitle
Thymocyte depletion during acute Trypanosoma cruzi infection in C57BL/6 mice is partly reverted by lipopolysaccharide pretreatment.
pubmed:affiliation
Instituto de Inmunología, Facultad de Ciencias Médicas de Rosario, Argentina.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't