Leukocytic response in monkeys challenged with staphylococcal enterotoxin |
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Authors: | Sugiyama H McKissic E M |
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Affiliation: | Food Research Institute, University of Chicago, Chicago, Illinois. |
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Abstract: | Sugiyama, H. (University of Chicago, Chicago, Ill.), and E. M. McKissic, Jr. Leukocytic response in monkeys challenged with staphylococcal enterotoxin. J. Bacteriol. 92:349-352. 1966-The feeding of staphylococcal enterotoxin to monkeys elicited a leukocytosis which was evident within 0.5 hr of challenge. The peak neutrophilic leukocytosis was reached in 3 hr, and then subsided so that leukocyte counts were normal within 28 hr. Each of the three serological types of enterotoxin tested induced the same effects. Intravenous injection of enterotoxin slightly above the emetic ed(50) level produced an initial leukopenia followed by a neutrophilic leukocytosis which was maximal 9 or more hr postinjection. With smaller intravenous challenges, some animals responded with a leukopenia followed by a leukocytosis, some with only a leukocytosis, and others with no significant change in total leukocyte counts. The reversal of normal lymphocyte-to-neutrophile ratio toward a neutrophile-predominant white blood cell population occurred in all animals. |
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