Cited by 97Nitric Oxide and Endothelin EffectsHemoglobin structure and functionRedox biology and oxidative stress

Enhanced S -Nitroso-Albumin Formation From Inhaled NO During Ischemia/Reperfusion

Ng, Ella S.M., Jourd’heuil, David, McCord, Joe M., Hernandez, Daniel, Yasui, Mitsukuni, Knight, Derrice, Kubes, Paul·2004·Circulation Research

Abstract

In the present study, we investigated whether inhaled nitric oxide (NO) was transported by plasma proteins, such as S-nitroso-albumin (SNO-Alb), in the feline circulation and whether this molecule delivers NO to the periphery under conditions of stress, specifically ischemia/reperfusion (I/R). A flow probe was interposed between the femoral and superior mesenteric artery for blood flow measurements, and a branch of the superior mesenteric vein was cannulated for arterial-venous sampling. In animals breathing room air, SNO-Alb was below detection level in arterial or venous blood. NO inhalation resulted in a significant arterial-venous gradient for SNO-Alb. Concomitant with this loss of SNO-Alb across the intestinal vasculature was an increase in nitrite (NO2-). However, this release of NO was not sufficient to alter intestinal blood flow. I/R during NO inhalation caused a very large increase in arterial SNO-Alb that permitted a 5-fold increase in SNO-Alb consumption and significant generation of NO2- within the postischemic intestinal vasculature. The increased SNO-Alb consumption was sufficient to dramatically improve intestinal blood flow. The very large burst of arterial SNO-Alb during I/R was completely blocked by the administration of superoxide dismutase, suggesting that oxidative stress contributed to the increased SNO-Alb formation. Our data suggest that inhaled NO can increase nitrosothiol production and these molecules may be a functional NO delivery system during cardiovascular disease.

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Crossref · 10.1161/01.res.0000117771.63140.d6

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  • Nitrite reduction back to NO under appropriate pathophysiological conditions can generate many nitroso species, or nitrite itself may mediate intracellular nitrosation reactions such as RSNO formation.

    “Recent studies show the potential role of nitrite reduction back to NO under appropriate pathophysiological conditions to generate many nitroso species or that nitrite itself may mediate intracellular nitrosation reactions (e.g. RSNO formation) [22, 23].”

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Authors
Ng, E. S. M., Jourd’heuil, D., McCord, J. M., Hernandez, D., Yasui, M., Knight, D., & Kubes, P.
Affiliations
  • University of Calgary (CA)
  • From the Department of Physiology and Biophysics (E.S.M.N., D.K., P.K.), Immunology Research Group, University of Calgary, Calgary, Alberta, Canada; Center for Cardiovascular Sciences (D.J.), Albany Medical College, Albany, NY; and Webb-Waring Institute (J.M.M., D.H., M.Y.), University of Colorado Health Sciences Center, Denver, Colo.
Venue
Circulation Research
Published
2004-03-05
Volume
94
Issue
4
Pages
559-565
ISSN
  • 0009-7330 (ISSN-L)
  • 1524-4571
OpenAlex
W2096856230
Cited by
97
References
40
Citations by year
2026: 1 · 2025: 2 · 2023: 1 · 2021: 2 · 2020: 1 · 2018: 2 · 2017: 2 · 2016: 4 · 2015: 7 · 2014: 4 · 2013: 2 · 2012: 8
FWCI
7.19
Type
journal article
Language
en
Open access
closed
Locations
  • Circulation Research (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • Canada Research Chairs
  • Canadian Institutes of Health Research
  • National Cancer Institute (CA-89366, R01CA089366)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Cell Biology › Hemoglobin structure and function
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
inhaled nitric oxide, ischemia-reperfusion, nitric oxide delivery, S-nitrosothiols, nitrite, intestinal blood flow, oxidative stress, superoxide dismutase, superior mesenteric artery, superior mesenteric vein, feline model
MeSH terms
Administration, Inhalation, Animals, Biological Transport, Cats, Constriction, Intestines, Ischemia, Nitric Oxide, Nitrites, Nitroso Compounds, Oxidation-Reduction, Recombinant Fusion Proteins, Serum Albumin, Bovine, Splanchnic Circulation, Superoxides, Superoxide Dismutase, Vasodilation, Reperfusion, Mesenteric Artery, Superior, Oxidative Stress, NG-Nitroarginine Methyl Ester, Nitric Oxide Donors, S-Nitrosoglutathione

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