Exacerbation of lymphocytic choriomeningitis in mice treated with the inducible nitric oxide synthase inhibitor aminoguanidine.

Abstract:

:To elucidate the possible involvement of the inducible nitric oxide synthase (iNOS) and NO in the development of lymphocytic choriomeningitis (LCM), the consequences of inhibition of iNOS by the inhibitor aminoguanidine was examined in mice following intracerebral infection with LCM virus (LCMV). Aminoguanidine administration to mice infected with LCMV completely blocked increased plasma nitrate/nitrite levels and led to increased proinflammatory cytokine gene expression at early stages of lesion development in the brain, enhanced clinical severity and decreased survival time. The levels of LCMV recovered from the brain of aminoguanidine treated mice did not differ from those in infected control mice. These findings argue against either an anti-viral or pathogenic role of NO in LCM but rather suggest a possible protective action of this mediator.

journal_name

J Neuroimmunol

authors

Campbell IL

doi

10.1016/s0165-5728(96)00129-4

subject

Has Abstract

pub_date

1996-12-01 00:00:00

pages

31-6

issue

1-2

eissn

0165-5728

issn

1872-8421

pii

S0165-5728(96)00129-4

journal_volume

71

pub_type

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