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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
1
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pubmed:dateCreated |
1986-8-14
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pubmed:abstractText |
The present longitudinal study was designed to characterize immunosuppression during acute Plasmodium falciparum infection, during the treatment and up to 1 month after the acute stage. The proliferative responses of blood mononuclear cells (BMNC) isolated from non-immune and semi-immune malaria patients and controls to mitogens and two Plasmodium-derived stimulators (merozoites, Meroz, and soluble purified antigen, SPag) and non-related antigens were measured by [3H]thymidine incorporation. BMNC isolated before treatment (day 0) from the non-immune patients did not respond to Meroz, whereas those from controls showed a significantly higher response. The SPag responses were also low in BMNC isolated on day 0 and increased in both the non-immune and the semi-immune patients during the observation period. These findings indicate that during malaria there is a depression of the parasite-specific proliferative response. The subset composition of BMNC isolated from non-immune patients was studied in a FACS analyser. The mean cell volumes of both Leu 2+ and Leu 3+ cells were increased during the acute phase of the infection, indicating that malaria infection results in activation of both T-helper and T-suppressor cells. There was no overall reduction of the response to mitogens on day 0. However, 3 days after initiation of the treatment the mitogen response was decreased. This finding indicates that it is important to distinguish between the effects of malaria infection and of drug treatment.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical |
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Differentiation...,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Protozoan,
http://linkedlifedata.com/resource/pubmed/chemical/Antigens, Surface,
http://linkedlifedata.com/resource/pubmed/chemical/Epitopes,
http://linkedlifedata.com/resource/pubmed/chemical/Immunoglobulin G,
http://linkedlifedata.com/resource/pubmed/chemical/Mitogens
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pubmed:status |
MEDLINE
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pubmed:month |
Jul
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pubmed:issn |
0300-9475
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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 |
73-81
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:2425416-Antigens, Differentiation, T-Lymphocyte,
pubmed-meshheading:2425416-Antigens, Protozoan,
pubmed-meshheading:2425416-Antigens, Surface,
pubmed-meshheading:2425416-Epitopes,
pubmed-meshheading:2425416-Fluorescent Antibody Technique,
pubmed-meshheading:2425416-Humans,
pubmed-meshheading:2425416-Immunoglobulin G,
pubmed-meshheading:2425416-Longitudinal Studies,
pubmed-meshheading:2425416-Lymphocyte Activation,
pubmed-meshheading:2425416-Malaria,
pubmed-meshheading:2425416-Mitogens,
pubmed-meshheading:2425416-Phenotype,
pubmed-meshheading:2425416-Plasmodium falciparum,
pubmed-meshheading:2425416-T-Lymphocytes, Regulatory
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pubmed:year |
1986
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pubmed:articleTitle |
Suppression of parasite-specific response in Plasmodium falciparum malaria. A longitudinal study of blood mononuclear cell proliferation and subset composition.
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pubmed:publicationType |
Journal Article,
Research Support, Non-U.S. Gov't
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