Cited by 104Cardiac Ischemia and ReperfusionNitric Oxide and Endothelin EffectsAcute Myocardial Infarction Research

Cardioprotective effects of acidified sodium nitrite in myocardial ischemia with reperfusion

Johnson, G, Tsao, P S, Mulloy, D, Lefer, A M·1990·The Journal of Pharmacology and Experimental Therapeutics

Abstract

The effects of acidified sodium nitrite (NaNO2) which releases nitric oxide, a substance which is thought to be indistinguishable from endothelium-derived relaxing factor, were investigated in a 6-h model of myocardial ischemia (MI) with reperfusion in open-chest, anesthetized cats. Acidified NaNO2 (12.5-50 mmol/kg/hr) was infused i.v., starting 30 min postocclusion followed by reperfusion 1 hr later, in cats subjected to MI by occlusion of the left anterior descending coronary artery. Acidified NaNO2 infusion (25 and 50 mmol/kg/hr) resulted in significantly lower plasma creatine kinase activities at every time beyond 1 hr for the MI + vehicle group, and was not significantly different when compared to sham MI + NaNO2 controls. The areas at risk expressed as percentage of the total left ventricular weights were not significantly different between the MI + vehicle and MI + acidified NaNO2 groups. However, the necrotic area expressed as a percentage of the myocardial area at risk was significantly lower in the 25 and 50 mmol/kg/hr NaNO2-treated cats. Cardiac myeloperoxidase activities indicated that significantly fewer neutrophils were attracted to the ischemic zone of the NaNO2-treated MI cats when compared to the vehicle-infused MI cats. Acidified NaNO2 significantly inhibited platelet aggregation in a dose-dependent manner in cat platelet-rich plasma. Thus, acidified NaNO2 exerts a significant protective action during ischemia and reperfusion injury, which suggests that endothelium-derived relaxing factor has a cardioprotective effect in MI.

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Crossref · 10.1016/s0022-3565(25)13354-5

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  • The nitrate/nitrite content of fruits and vegetables could contribute to their cardiovascular health benefits in animals and humans.

    “the nitrate/nitrite content of the fruits and vegetables could contribute to their cardiovascular health benefits in animals [29,33,78,79,80,81,82,83] and humans [31,84,85,86].”

    From NO-Rich Diet for Lifestyle-Related Diseases (2015) · cites this paper as [83]

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Authors
Johnson, G., Tsao, P. S., Mulloy, D., & Lefer, A. M.
Affiliations
Thomas Jefferson University (US)
Venue
The Journal of Pharmacology and Experimental Therapeutics
Publisher
Elsevier BV
Published
1990-01
Volume
252
Issue
1
Pages
35-41
ISSN
0022-3565 (ISSN-L)
OpenAlex
W2286008140
Cited by
104
References
0
Citations by year
2023: 2 · 2021: 1 · 2020: 2 · 2018: 2 · 2017: 3 · 2016: 2 · 2015: 3 · 2014: 3 · 2012: 2
FWCI
2.65
Type
journal article
Language
en
Open access
closed
Locations
  • Journal of Pharmacology and Experimental Therapeutics (publishedVersion)
  • PubMed (publishedVersion)
  • PubMed
Topics
  • Health Sciences › Medicine › Pathology and Forensic Medicine › Cardiac Ischemia and Reperfusion
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Acute Myocardial Infarction Research
Keywords
myocardial ischemia-reperfusion injury, cardioprotection, nitric oxide, endothelium-derived relaxing factor, myocardial necrosis, neutrophil infiltration, myeloperoxidase, platelet aggregation inhibition, coronary artery occlusion, creatine kinase
MeSH terms
Animals, Blood Pressure, Cats, Coronary Disease, Creatine Kinase, Heart, Heart Rate, Male, Peroxidase, Nitrites, Platelet Aggregation, Platelet Aggregation Inhibitors, Sodium Nitrite, Myocardial Reperfusion Injury

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