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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
10
pubmed:dateCreated
2011-9-21
pubmed:abstractText
Cellular immune responses, chemokine, and cytokine profiles were investigated in 20-d-old turkey poults following an oral infection with 12.5 × 10(3) oocysts of Eimeria adenoeides, a protozoan parasite of the genus Eimeria that develops in the ceca. Large numbers of oocysts were produced in the feces of infected birds from d 5 after infection followed by a rapid decline by d 7. Local immune activities were characterized by observing the extent of leukocyte infiltration in the ceca by histology, measuring subsets of the lymphocyte population by immunohistochemistry, and determining the relative expression of cytokines by real-time, reverse-transcription PCR. Inflammation, assessed by scoring the extent of cellular infiltration of leukocytes in sections of ceca, was significantly higher in infected poults compared with uninfected poults on d 4, 7, 9, and 11 following infection. The percent area occupied by CD4+ and CD8+ cells in the ceca was significantly greater on d 9 and 11 (CD4+) and d 11 (CD8+) in infected poults compared with uninfected controls. The relative expression of the chemokine CXCLi2 and the cytokines interleukin (IL) 1?, interferon (IFN) ?, IL13, and IL10 was investigated in tissue samples taken from the ceca. Increased expression of CXCLi2 occurred on d 4 and 7. Increased expression of IL10 and IFN? occurred on d 4 and of IL1? and IL13 occurred on d 7 postinfection. The increased leukocyte infiltration in the ceca, alterations in the lymphocyte subpopulations, and changes in expression of chemokines and cytokines are an indication of the cell-mediated immune mechanisms occurring in the host as a result of exposure to E. adenoeides.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Oct
pubmed:issn
0032-5791
pubmed:author
pubmed:issnType
Print
pubmed:volume
90
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
2243-50
pubmed:meshHeading
pubmed:year
2011
pubmed:articleTitle
Cellular immune responses, chemokine, and cytokine profiles in Turkey poults following infection with the intestinal parasite Eimeria adenoeides.
pubmed:affiliation
Department of Poultry Science, University of Arkansas, Fayetteville, AR 72701, USA.
pubmed:publicationType
Journal Article