Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9
pubmed:dateCreated
1993-12-7
pubmed:abstractText
The mechanism of mucosal injury in Giardia lamblia-infected animals and humans is not well understood, although the role of gut macrophages in killing the trophozoites is well known. It is speculated, however, that macrophage products have a role in tissue injury and inflammatory response during infection, as in other inflammatory diseases. Therefore, in the present study an attempt was made to examine the mechanism involved in enterocyte damage during giardiasis. This was achieved using co-culture of enterocytes and gut macrophages obtained from infected BALB/c mice. The extent of tissue damage was assessed by measuring the marker enzyme of enterocyte damage, lactate dehydrogenase. To investigate the role of the various proteases and free oxygen radicals released by activated macrophages on enterocyte damage, inhibitors of various proteases and free oxygen radicals were used. Superoxide radical and certain proteases were found to have important roles in bringing about enterocyte damage during this infection in mice. Parasite load, lactate dehydrogenase release, and extent of lipid peroxidation were more pronounced in mice infected with symptomatic strains than in asymptomatic ones. The theory of inflammatory cell-mediated enterocyte damage in Giardia lamblia infection is proposed.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Sep
pubmed:issn
0036-5521
pubmed:author
pubmed:issnType
Print
pubmed:volume
28
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
845-8
pubmed:dateRevised
2003-11-14
pubmed:meshHeading
pubmed:year
1993
pubmed:articleTitle
Macrophage-mediated enterocyte damage in BALB/c mice infected with different strains of Giardia lamblia.
pubmed:affiliation
Dept. of Parasitology, Postgraduate Institute of Medical Education and Research, Chandigarh, India.
pubmed:publicationType
Journal Article