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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Barza, M. Wolff, S. M. Van Der Meer, J. W. Dinarello, C. A. |
| Description | Author Affiliation: van der Meer JW ( Department of Medicine, Tufts University School of Medicine-New England Medical Center, Boston, MA 02111.); |
| Abstract | Natural and synthetic immunomodulators that increase nonspecific resistance to infection induce interleukin 1 (IL-1) production. Therefore, we investigated the effect of the administration of IL-1 on the survival of lethally infected granulocytopenic mice. Mice with cyclophosphamide-induced granulocytopenia were injected with approximately 10(7) Pseudomonas aeruginosa in the thigh muscle at time 0; gentamicin was administered 6 hr and 23 hr later. When recombinant human IL-1 beta (one of the two forms of IL-1) was given as a single i.p. injection 24 hr before the infection, survival was increased. Using 80 ng of IL-1 beta per mouse, survival compared to control animals was 98% vs. 71% at 24 hr, 98% vs. 60% at 30 hr, 86% vs. 36% at 36 hr, and 61% vs. 11% at 48 hr (P less than 0.001) after the infection. No effect of IL-1 was observed when it was given 0.5 hr before or 6 hr after the infection. Animals not treated with gentamicin also benefited from the IL-1. Administration of the cyclooxygenase inhibitor ibuprofen did not affect the activity of IL-1. Numbers of bacteria cultured from the blood, thigh muscle, liver, spleen, and kidney were similar in IL-1-treated and control animals. Superoxide production by peritoneal macrophages was also similar in the two groups. These studies demonstrate that IL-1 pretreatment protects granulocytopenic mice against lethal pseudomonas infection and suggest that this protection occurs through a noncellular mechanism. |
| ISSN | 00278424 |
| e-ISSN | 10916490 |
| Journal | Proceedings of the National Academy of Sciences of the United States of America |
| Issue Number | 5 |
| Volume Number | 85 |
| Language | English |
| Publisher | National Academy of Sciences |
| Publisher Date | 1988-04-01 |
| Publisher Place | United States |
| Access Restriction | Open |
| Subject Keyword | Agranulocytosis Immunology Interleukin-1 Therapeutic Use Pseudomonas Infections Therapy Recombinant Proteins Streptococcal Infections Animals Blood Bactericidal Activity Dose-Response Relationship, Immunologic Immunotherapy Mice Pseudomonas Aeruginosa Streptococcus Pneumoniae Research Support, Non-U.S. Gov't Research Support, U.S. Gov't, P.H.S. Multidisciplinary |
| Content Type | Text |
| Resource Type | Article |
| Subject | Multidisciplinary |
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