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J Vet Med Sci. 2003 Nov;65(11):1185-8.

The effects of antipyretics on influenza virus encephalitis in mice and chicks.

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  • 1Laboratory of Comparative Pathology, School of Veterinary Medicine, Hokkaido University, Sapporo, Japan.

Abstract

To investigate the effect of antipyretics on the murine and poultry models of influenzal encephalitis, we injected large quantities of antipyretics, acetylsalicylic acid (aspirin) and dicrofenac sodium (voltaren). The effect of antipyretic treatment on the murine encephalitis model was unremarkable histologically and immunohistochemically. Whereas in chicks, CNS lesions consisting of perivascular cuffing and gliosis appeared only in those animals treated with the antipyretics and viral antigen was detected mainly in the nuclei of glial cells or vascular endothelia of voltaren-treated animals. We here demonstrate that antipyretic treatment aggravated the hematogenous spread of the influenza virus to the CNS in chicks, but did not affect the transneural infection in mice.

PMID:
14665746
[PubMed - indexed for MEDLINE]
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