Expression of nitric oxide synthase in a murine model of viral myocarditis induced by coxsackievirus B3.

Abstract:

:Nitric oxide is known to participate in the immune and inflammatory processes. In this study, we investigated the production of nitric oxide (NO) in murine viral myocarditis induced by coxsackievirus B3. The expression of inducible NO synthase (iNOS) mRNA in the heart first appeared on day 4 after virus inoculation and it was detectable for one month by reverse transcriptase-polymerase chain reaction (RT-PCR) methods. iNOS activity which was determined by the conversion of L-[3H]arginine to L-[3H]citrulline was increased on day 4 and revealed its peak on day 8. Immunohistochemistry on day 7 showed increased iNOS staining mainly in infiltrating macrophages and polymorphonuclear leukocytes. Thus, NO is thought to be produced in the heart and play an important role in a murine model of coxsackievirus B3-induced viral myocarditis.

authors

Mikami S,Kawashima S,Kanazawa K,Hirata K,Katayama Y,Hotta H,Hayashi Y,Ito H,Yokoyama M

doi

10.1006/bbrc.1996.0519

subject

Has Abstract

pub_date

1996-03-27 00:00:00

pages

983-9

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006291X96905197

journal_volume

220

pub_type

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