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- W2030797425 endingPage "1809" @default.
- W2030797425 startingPage "1797" @default.
- W2030797425 abstract "Significance: Pulmonary arterial hypertension (PAH) is a disorder characterized by increased pulmonary vascular resistance and mean pulmonary artery pressure leading to impaired function of the right ventricle, reduced cardiac output, and death. An imbalance between vasoconstrictors and vasodilators plays an important role in the pathobiology of PAH. Recent Advances: Nitric oxide (NO) is a potent vasodilator in the lung, whose bioavailability and signaling pathway are impaired in PAH. It is now appreciated that the oxidative product of NO metabolism, the inorganic anion nitrite (NO2−), functions as an intravascular endocrine reservoir of NO bioactivity that can be reduced back to NO under physiological and pathological hypoxia. Critical Issues: The conversion of nitrite to NO is controlled by coupled electron and proton transfer reactions between heme- and molybdenum-containing proteins, such as hemoglobin and xanthine oxidase, and by simple protonation and disproportionation, and possibly by catalyzed disproportionation. The two major sources of nitrite (and nitrate) are the endogenous l-arginine–NO pathway, by oxidation of NO, and the diet, with conversion of nitrate from diet into nitrite by oral commensal bacteria. In the current article, we review the enzymatic formation of nitrite and the available data regarding its use as a therapy for PAH and other cardiovascular diseases. Future Directions: The successful efficacy demonstrated in several animal models and safety in early clinical trials suggest that nitrite may represent a promising new therapy for PAH. Antioxid. Redox Signal. 18, 1797–1809." @default.
- W2030797425 created "2016-06-24" @default.
- W2030797425 creator A5006165632 @default.
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- W2030797425 creator A5087409511 @default.
- W2030797425 date "2013-05-10" @default.
- W2030797425 modified "2023-10-15" @default.
- W2030797425 title "Nitrite Signaling in Pulmonary Hypertension: Mechanisms of Bioactivation, Signaling, and Therapeutics" @default.
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- W2030797425 doi "https://doi.org/10.1089/ars.2012.4833" @default.
- W2030797425 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3619206" @default.
- W2030797425 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22871207" @default.
- W2030797425 hasPublicationYear "2013" @default.