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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
2
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pubmed:dateCreated |
1997-1-16
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pubmed:abstractText |
The effects of stressor application on the splenic plaque-forming cell (PFC) response was assessed in two strains of mice: the BALB/cByJ strain, which is highly responsive to stressors; and the more hardy DBA/2J strain. Both strains exhibited a peak PFC response 120 h following administration of sheep red blood cells (SRBC; 5 x 106 cells). Stressor exposure reduced the immune response; however, the appearance of such an outcome was dependent upon the time at which the stressor was applied relative to SRBC inoculation. In DBA/2J mice, foot-shock applied either immediately after SRBC inoculation or at the time of the peak immune response (120 h) resulted in suppression of the PFC response. In BALB/cByJ mice, both stressor severities provoked an immunosuppression when applied 120 h after inoculation, but when applied 96 h after immunization only foot-shock reduced the PFC response. At other intervals, the stressors were without effect. Pretreatment with the beta-norepinephrine antagonist propranolol precluded the immunosuppression elicited by a stressor applied 96 h after inoculation, but did not affect the reduction of the PFC response elicited by a stressor applied 120 h after inoculation. It is suggested that several factors may contribute to stressor-provoked alterations of the immune response, and that the contribution of these factors vary over the course of an immune response being mounted.
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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:month |
Feb
|
pubmed:issn |
0091-3057
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
53
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
235-41
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pubmed:dateRevised |
2006-11-15
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pubmed:meshHeading |
pubmed-meshheading:8808126-Adrenergic beta-Antagonists,
pubmed-meshheading:8808126-Animals,
pubmed-meshheading:8808126-Brain Chemistry,
pubmed-meshheading:8808126-Corticosterone,
pubmed-meshheading:8808126-Electroshock,
pubmed-meshheading:8808126-Hemolytic Plaque Technique,
pubmed-meshheading:8808126-Male,
pubmed-meshheading:8808126-Mice,
pubmed-meshheading:8808126-Mice, Inbred BALB C,
pubmed-meshheading:8808126-Mice, Inbred DBA,
pubmed-meshheading:8808126-Propranolol,
pubmed-meshheading:8808126-Rats,
pubmed-meshheading:8808126-Sheep,
pubmed-meshheading:8808126-Species Specificity,
pubmed-meshheading:8808126-Spleen,
pubmed-meshheading:8808126-Stress, Psychological
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pubmed:year |
1996
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pubmed:articleTitle |
Stressor-induced alterations of the splenic plaque-forming cell response: strain differences and modification by propranolol.
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pubmed:affiliation |
Department of Psychology, Carleton University, Ottawa, Ontario, Canada.
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pubmed:publicationType |
Journal Article,
Comparative Study,
Research Support, Non-U.S. Gov't
|