Cited by 430Nitric Oxide and Endothelin EffectsCardiovascular Health and Disease PreventionRedox biology and oxidative stress

Nitric oxide, tetrahydrobiopterin, oxidative stress, and endothelial dysfunction in hypertension

Schulz, Eberhard, Jansen, Thomas, Wenzel, Philip, Daiber, Andreas, Münzel, Thomas·2008·Antioxidants & Redox Signaling

Abstract

Endothelial dysfunction in the setting of cardiovascular risk factors such as hypercholesterolemia, diabetes mellitus, chronic smoking, as well hypertension, is, at least in part, dependent of the production of reactive oxygen species (ROS) and the subsequent decrease in vascular bioavailability of nitric oxide (NO). ROS-producing enzymes involved in increased oxidative stress within vascular tissue include NADPH oxidase, xanthine oxidase, and mitochondrial superoxide producing enzymes. Superoxide produced by the NADPH oxidase may react with NO, thereby stimulating the production of the NO/superoxide reaction product peroxynitrite. Peroxynitrite in turn has been shown to uncouple eNOS, therefore switching an antiatherosclerotic NO producing enzyme to an enzyme that may accelerate the atherosclerotic process by producing superoxide. Increased oxidative stress in the vasculature, however, is not restricted to the endothelium and also occurs within the smooth muscle cell layer. Increased superoxide production has important consequences with respect to signaling by the soluble guanylate cyclase and the cGMP-dependent kinase I, which activity and expression is regulated in a redox-sensitive fashion. The present review will summarize current concepts concerning eNOS uncoupling, with special focus on the role of tetrahydrobiopterin in mediating eNOS uncoupling.

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Crossref · 10.1089/ars.2007.1989

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Authors
Schulz, E., Jansen, T., Wenzel, P., Daiber, A., & Münzel, T.
Affiliations
II. Medizinische Klinik, Mainz, Kardiologie, Angiologie und Internistische Intensivmedizin, Mainz, Germany.
Venue
Antioxidants & Redox Signaling
Published
2008-06
Volume
10
Issue
6
Pages
1115-1126
ISSN
  • 1523-0864 (ISSN-L)
  • 1557-7716
OpenAlex
W1975365056
Cited by
430
References
96
Citations by year
2026: 9 · 2025: 16 · 2024: 18 · 2023: 11 · 2022: 15 · 2021: 21 · 2020: 22 · 2019: 18 · 2018: 17 · 2017: 12 · 2016: 22 · 2015: 30 · 2014: 27 · 2013: 35 · 2012: 37
FWCI
4.32
Type
journal article
Language
en
Open access
closed
Locations
  • Antioxidants and Redox Signaling (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Cardiovascular Health and Disease Prevention
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Molecular Biology › Redox biology and oxidative stress
Keywords
endothelial dysfunction, hypertension, nitric oxide, tetrahydrobiopterin, oxidative stress, reactive oxygen species, superoxide, NADPH oxidase, xanthine oxidase, peroxynitrite, eNOS uncoupling, soluble guanylate cyclase, vascular smooth muscle cells, atherosclerosis
MeSH terms
Soluble Guanylyl Cyclase, Animals, Biopterins, Endothelium, Vascular, Guanylate Cyclase, Humans, Hypertension, Nitric Oxide, Cyclic GMP-Dependent Protein Kinases, Receptors, Cytoplasmic and Nuclear, Oxidative Stress, NADPH Oxidases, Peroxynitrous Acid, Nitric Oxide Synthase Type III

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