Measurement of nitric oxide release in the isolated perfused rat lung.

Abstract:

:In this study we have continuously measured real-time production of nitric oxide (NO) in the isolated, perfused rat lung by using an NO monitor (model NO-501, Inter Medical Co., Nagoya, Japan) with an NO-selective resin microsensor. A stable NO response was obtained when the sensor was placed in the pulmonary artery or the pulmonary vein; in contrast, the tracings obtained from the lung periphery were unstable. Furthermore, the NO release was higher when the isolated lungs were perfused with physiological salt solution rather than whole blood perfusion. Changes in NO production were also monitored in acute hypoxia and reoxygenation. Pretreatment with endotoxin (10 mg/kg) potentiated the NO release observed, and this effect of endotoxin was further potentiated by arginine (1 x 10(-4) M) and acetylcholine (1 x 10(-5) M) and countered by the NO synthase inhibitor, L-NG-nitro-arginine methyl ester (L-NAME; 1 x 10(-3) M).

authors

Wang D,Hsu K,Hwang CP,Chen HI

doi

10.1006/bbrc.1995.1435

subject

Has Abstract

pub_date

1995-03-28 00:00:00

pages

1016-20

issue

3

eissn

0006-291X

issn

1090-2104

pii

S0006-291X(85)71435-0

journal_volume

208

pub_type

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