Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig

In anaesthetized, paralysed, ventilated pigs the ability of inhaled nitric oxide (80 ppm in 02) to reduce the haemodynamic and respiratory effects of endothelin-1 administration (200 pmol/kg, i.v.) was evaluated. The mechanical properties of the respiratory system were evaluated by the rapid airway...

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Main Authors: M. G. Clement, M. Dimori
Format: Article
Language:English
Published: Wiley 1994-01-01
Series:Mediators of Inflammation
Online Access:http://dx.doi.org/10.1155/S0962935194000165
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author M. G. Clement
M. Dimori
author_facet M. G. Clement
M. Dimori
author_sort M. G. Clement
collection DOAJ
description In anaesthetized, paralysed, ventilated pigs the ability of inhaled nitric oxide (80 ppm in 02) to reduce the haemodynamic and respiratory effects of endothelin-1 administration (200 pmol/kg, i.v.) was evaluated. The mechanical properties of the respiratory system were evaluated by the rapid airway occlusion technique. The overall respiratory resistance, the interrupter resistance and the additional resistance that reflects the viscoelastic properties of tissues and the inequality of the time constant within the system were also evaluated. The results show that inhaled nitric oxide can act as a selective pulmonary vasodilator and as a bronchodilator to counteract the vasoconstrictor and bronchoconstrictor activity of endothelin-1. In the pig, nitric oxide inhaled at 80 ppm for 6 mitt reduced the changes in respiratory-, interrupter- and additional resistance due to endothelin-1 administration without significantly changing the static and dynamic elastance of the respiratory system.
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spelling doaj-art-dea80754c9d0498793eccff2f1f3d8162025-02-03T05:51:05ZengWileyMediators of Inflammation0962-93511466-18611994-01-013213113510.1155/S0962935194000165Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the PigM. G. Clement0M. Dimori1Institute of Veterinary Physiology and Biochemistry, University of Milan, Via Celoria 10, Milan 20133, ItalyInstitute of Veterinary Physiology and Biochemistry, University of Milan, Via Celoria 10, Milan 20133, ItalyIn anaesthetized, paralysed, ventilated pigs the ability of inhaled nitric oxide (80 ppm in 02) to reduce the haemodynamic and respiratory effects of endothelin-1 administration (200 pmol/kg, i.v.) was evaluated. The mechanical properties of the respiratory system were evaluated by the rapid airway occlusion technique. The overall respiratory resistance, the interrupter resistance and the additional resistance that reflects the viscoelastic properties of tissues and the inequality of the time constant within the system were also evaluated. The results show that inhaled nitric oxide can act as a selective pulmonary vasodilator and as a bronchodilator to counteract the vasoconstrictor and bronchoconstrictor activity of endothelin-1. In the pig, nitric oxide inhaled at 80 ppm for 6 mitt reduced the changes in respiratory-, interrupter- and additional resistance due to endothelin-1 administration without significantly changing the static and dynamic elastance of the respiratory system.http://dx.doi.org/10.1155/S0962935194000165
spellingShingle M. G. Clement
M. Dimori
Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
Mediators of Inflammation
title Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
title_full Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
title_fullStr Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
title_full_unstemmed Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
title_short Inhaled Nitric Oxide Counterbalances ET-1 Dependent Pulmonary Hypertension and Bronchoconstriction in the Pig
title_sort inhaled nitric oxide counterbalances et 1 dependent pulmonary hypertension and bronchoconstriction in the pig
url http://dx.doi.org/10.1155/S0962935194000165
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AT mdimori inhalednitricoxidecounterbalanceset1dependentpulmonaryhypertensionandbronchoconstrictioninthepig