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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
9
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pubmed:dateCreated |
1992-4-15
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pubmed:abstractText |
The objective of the present study was to determine whether cimetidine, a type-2 histamine receptor antagonist, inhibits the immunological enhancement of allografted rats achieved by treatment with donor antigen plus anti-donor antibody. Groups of rats submitted to this active-passive enhancement protocol and treated ip with 30 (APEC 30; Group I; N = 4) or 60 (APEC 60; Group II; N = 8) mg/day cimetidine for 14 days had a significantly shorter graft survival (20.2 +/- 5.1 and 11.1 +/- 2.6 days, respectively) than the control group (animals submitted to the enhancement protocol and killed on day 72 after transplant when the graft was beating normally; APE; Group III; N = 6; P less than 0.05). On the other hand, these animals had a significantly longer graft survival than rats allotransplanted but not treated for enhancement (ALLO; Group V; N = 5; 8.2 +/- 0.8 days). The surgical control, consisting of isotransplanted animals, had a long-term survival (ISO; Group VI; N = 6; rats killed 120 days after transplant with the graft beating normally). Animals treated with cimetidine, but not submitted to the enhancement protocol (AC 60; Group IV, N = 4) had a significantly shorter graft survival (6.25 +/- 0.5) than the allotransplanted animals (Group V). These results indicate inhibition of the suppressor mechanisms which participate in this type of immunological enhancement.
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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:issn |
0100-879X
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
24
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
933-6
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:1797288-Animals,
pubmed-meshheading:1797288-Antigens,
pubmed-meshheading:1797288-Cimetidine,
pubmed-meshheading:1797288-Graft Enhancement, Immunologic,
pubmed-meshheading:1797288-Graft Survival,
pubmed-meshheading:1797288-Immunization,
pubmed-meshheading:1797288-Lymphocytes,
pubmed-meshheading:1797288-Male,
pubmed-meshheading:1797288-Rats,
pubmed-meshheading:1797288-Rats, Inbred BN,
pubmed-meshheading:1797288-Rats, Inbred Lew,
pubmed-meshheading:1797288-Transplantation Immunology
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pubmed:year |
1991
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pubmed:articleTitle |
Inhibitory effect of cimetidine on graft survival of allotransplanted rats submitted to an active-passive enhancement protocol.
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pubmed:affiliation |
Laboratório de Immunogenética e Transplante Experimental, Faculdade de Medicina, Universidade de São Paulo, Brasil.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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