Cited by 187Nitric Oxide and Endothelin EffectsAngiogenesis and VEGF in CancerPeripheral Artery Disease Management

Chronic sodium nitrite therapy augments ischemia-induced angiogenesis and arteriogenesis

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Kumar, Dinesh, Branch, Billy G., Pattillo, Christopher B., Hood, Jay, Thoma, Stephen, Simpson, Stephen, Illum, Sandra, Arora, Neeraj +6 more·2008·Proceedings of the National Academy of Sciences

Abstract

Chronic tissue ischemia due to defective vascular perfusion is a hallmark feature of peripheral artery disease for which minimal therapeutic options exist. We have reported that sodium nitrite therapy exerts cytoprotective effects against acute ischemia/reperfusion injury in both heart and liver, consistent with the model of bioactive NO formation from nitrite during ischemic stress. Here, we test the hypothesis that chronic sodium nitrite therapy can selectively augment angiogenic activity and tissue perfusion in the murine hind-limb ischemia model. Various therapeutic doses (8.25-3,300 mug/kg) of sodium nitrite or PBS were administered. Sodium nitrite significantly restored ischemic hind-limb blood flow in a time-dependent manner, with low-dose sodium nitrite being most effective. Nitrite therapy significantly increased ischemic limb vascular density and stimulated endothelial cell proliferation. Remarkably, the effects of sodium nitrite therapy were evident within 3 days of the ischemic insult demonstrating the potency and efficacy of chronic sodium nitrite therapy. Sodium nitrite therapy also increased ischemic tissue nitrite and NO metabolites compared to nonischemic limbs. Use of the NO scavenger carboxy PTIO completely abolished sodium nitrite-dependent ischemic tissue blood flow and angiogenic activity consistent with nitrite reduction to NO being the proangiogenic mechanism. These data demonstrate that chronic sodium nitrite therapy is a recently discovered therapeutic treatment for peripheral artery disease and critical limb ischemia.

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Crossref · 10.1073/pnas.0711480105

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  • In these experiments, nitrite conversion to nitric oxide was dependent on XOR.

    “In these experiments, nitrite conversion to nitric oxide was dependent on XOR.”

    From Nitrate-Nitrite-Nitric Oxide Pathway: Implications for Anesthesiology and Intensive Care (2010) · cites this paper as [145]

    The Discussion says nitrite can be reduced to NO and identifies xanthine oxidoreductase (XOR) as one possible electron donor. It also says the donor’s identity remains under investigation; it does not establish that nitrite-to-NO conversion in these experiments depended on XOR. (LLM, conf=0.88)

    Experimental — accuracy not yet measured
  • Inhaled nitrite has beneficial effects in animal models of pulmonary hypertension.

    “Recently, inhaled nitrite has been shown to have beneficial effects in animal models of pulmonary hypertension.”

    From Nitrate-Nitrite-Nitric Oxide Pathway: Implications for Anesthesiology and Intensive Care (2010) · cites this paper as [145]

    The Results describe sodium nitrite given by intraperitoneal injection to mice with hind-limb ischemia, not inhaled nitrite in pulmonary-hypertension models. Searches for inhaled nitrite and pulmonary hypertension found no passage in our copy reporting the claimed benefit. (LLM, conf=0.77)

    Experimental — accuracy not yet measured
  • In more chronic rodent models of pulmonary hypertension, pulmonary hypertension was prevented by inhaled nitrite but also right ventricular hypertrophy and failure.

    “Again, pulmonary hypertension was prevented by inhaled nitrite but also right ventricular hypertrophy and failure.”

    From Nitrate-Nitrite-Nitric Oxide Pathway: Implications for Anesthesiology and Intensive Care (2010) · cites this paper as [145]

    The Results describe sodium nitrite given by intraperitoneal injection in a mouse hind-limb ischemia model; the Discussion addresses restoration of limb perfusion. Searches for inhaled nitrite, pulmonary hypertension, and right-ventricular outcomes found no passage in our copy addressing the claimed prevention of pulmonary hypertension, hypertrophy, or failure. (LLM, conf=0.76)

    Experimental — accuracy not yet measured
  • Hypoxia-induced proliferation of cultured pulmonary artery smooth muscle cells was inhibited by nitrite.

    “In addition, hypoxia-induced proliferation of cultured pulmonary artery smooth muscle cells was inhibited by nitrite.”

    From Nitrate-Nitrite-Nitric Oxide Pathway: Implications for Anesthesiology and Intensive Care (2010) · cites this paper as [145]

    The Results section reports that nitrite increased endothelial cell proliferation in ischemic mouse hind-limb tissue. It does not address cultured pulmonary artery smooth muscle cells or whether nitrite inhibits their hypoxia-induced proliferation (searched: pulmonary artery smooth muscle cells, smooth muscle cell proliferation). (LLM, conf=0.78)

    Experimental — accuracy not yet measured
  • Nitrite is a dietary constituent that protects the heart against I/R injury in many animal models during both ischemia and preconditioning stage.

    “Nitrite is a dietary constituent that protects the heart against I/R injury in many animal models during both ischemia and preconditioning stage [186,187,188,189,190,191,192].”

    From AMPK, Mitochondrial Function, and Cardiovascular Disease (2020) · cites this paper as [191]

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Authors
Kumar, D., Branch, B. G., Pattillo, C. B., Hood, J., Thoma, S., Simpson, S., Illum, S., Arora, N., Chidlow, J. H., Langston, W., Teng, X., Lefer, D. J., Patel, R. P., & Kevil, C. G.
Affiliations
  • Louisiana State University Health Sciences Center Shreveport (US)
  • Departments of †Pathology and
  • University of Alabama at Birmingham (US)
  • Albert Einstein College of Medicine (US)
Venue
Proceedings of the National Academy of Sciences
Published
2008-05-27
Volume
105
Issue
21
Pages
7540-7545
ISSN
  • 0027-8424 (ISSN-L)
  • 1091-6490
OpenAlex
W2014848058
Cited by
187
References
49
Citations by year
2025: 1 · 2024: 3 · 2023: 2 · 2022: 4 · 2021: 6 · 2020: 5 · 2019: 7 · 2018: 9 · 2017: 12 · 2016: 6 · 2015: 18 · 2014: 9 · 2013: 21 · 2012: 26
FWCI
12.86
Type
journal article
Language
en
Open access
Locations
  • Proceedings of the National Academy of Sciences (publishedVersion)
  • PubMed Central (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL-80482, HL60849, R01HL080482, R01HL060849)
  • National Institute of Diabetes and Digestive and Kidney Diseases (P01DK043785, DK-43785)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Angiogenesis and VEGF in Cancer
  • Health Sciences › Medicine › Surgery › Peripheral Artery Disease Management
Keywords
nitric oxide, angiogenesis, arteriogenesis, hindlimb ischemia, peripheral arterial disease, critical limb ischemia, ischemia-reperfusion injury, endothelial cell proliferation, vessel density, blood flow recovery
MeSH terms
Animals, Arteries, Cyclic N-Oxides, Disease Models, Animal, Endothelium, Vascular, Hindlimb, Imidazoles, Ischemia, Male, Mice, Inbred C57BL, Nitric Oxide, Sodium Nitrite, Free Radical Scavengers, Peripheral Vascular Diseases, Neovascularization, Physiologic, Cytoprotection, Mice

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