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Glucocorticoid administration accelerates mortality of pneumovirus-infected mice
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UNSPECIFIED (2001) Glucocorticoid administration accelerates mortality of pneumovirus-infected mice. JOURNAL OF INFECTIOUS DISEASES, 184 (12). pp. 1518-1523. ISSN 0022-1899.
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Abstract
The use of glucocorticoids for the treatment of symptoms associated with respiratory syncytial virus (RSV) infection has been questioned. To evaluate the sequelae of glucocorticoid administration in the setting of pneumovirus infection in vivo, hydrocortisone was administered to mice infected with pneumonia virus of mice (PVM), a pneumovirus and natural rodent pathogen that is closely related to RSV and replicates the signs and symptoms of severe human RSV infection. Results showed that hydrocortisone spared the pulmonary neutrophilia but resulted in ablation of the pulmonary eosinophilia, despite continued production of the relevant chemoattractant, macrophage inflammatory protein-1 alpha. Hydrocortisone also led to diminished production of inducible nitric oxide synthase and accumulation of reactive nitrogen species in lung tissue and bronchoalveolar lavage fluid and diminished lymphocyte recruitment. PVM-infected mice responded to hydrocortisone with enhanced viral replication and accelerated mortality. These results suggest several mechanisms to explain why glucocorticoid therapy may be of limited benefit in the overall picture of pneumovirus infection.
| Item Type: | Journal Article | ||||
|---|---|---|---|---|---|
| Subjects: | Q Science > QR Microbiology > QR180 Immunology Q Science > QR Microbiology > QR355 Virology Q Science > QR Microbiology |
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| Journal or Publication Title: | JOURNAL OF INFECTIOUS DISEASES | ||||
| Publisher: | UNIV CHICAGO PRESS | ||||
| ISSN: | 0022-1899 | ||||
| Official Date: | 15 December 2001 | ||||
| Dates: |
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| Volume: | 184 | ||||
| Number: | 12 | ||||
| Number of Pages: | 6 | ||||
| Page Range: | pp. 1518-1523 | ||||
| Publication Status: | Published |
Data sourced from Thomson Reuters' Web of Knowledge
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