Cited by 359Renin-Angiotensin System StudiesEicosanoids and Hypertension PharmacologyNitric Oxide and Endothelin Effects

Role of Angiotensin and Oxidative Stress in Essential Hypertension

Romero, J. Carlos, Reckelhoff, Jane F.·1999·Hypertension

Abstract

In this review, we examine the possibility that small increments in angiotensin II are responsible for an increase in blood pressure and maintenance of hypertension through the stimulation of oxidative stress. A low dose of angiotensin II (2 to 10 ng x kg(-1) x min(-1), which does not elicit an immediate pressor response), when given for 7 to 30 days by continuous intravenous infusion, can increase mean arterial pressure by 30 to 40 mm Hg. This slow pressor response to angiotensin is accompanied by the stimulation of oxidative stress, as measured by a significant increase in levels of 8-iso-prostaglandin F(2alpha) (F(2)-isoprostane). Superoxide radicals and nitric oxide can combine chemically to form peroxynitrite, which can then oxidize arachidonic acid to form F(2)-isoprostanes. F(2)-isoprostanes exert potent vasoconstrictor and antinatriuretic effects. Furthermore, angiotensin II can stimulate endothelin production, which also has been shown to stimulate oxidative stress. In this way, a reduction in the concentration of nitric oxide (which is quenched by superoxide) along with the formation of F(2)-isoprostanes and endothelin could potentiate the vasoconstrictor effects of angiotensin II. We hypothesize that these mechanisms, which underlie the development of the slow pressor response to angiotensin II, also participate in the production of hypertension when circulating angiotensin II levels appear normal, as occurs in many cases of essential and renovascular hypertension.

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Crossref · 10.1161/01.hyp.34.4.943

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  • Although plasma angiotensin II levels are not consistently elevated in essential hypertension, activation of tissue-specific renin-angiotensin systems, including in brain and blood vessels, is thought to play a role.

    “Although plasma levels of ANGII are not consistently elevated in essential hypertension (13), activation of tissue-specific renin-angiotensin systems, including in brain and blood vessels, is thought to play a role (62).”

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Authors
Romero, J. C., & Reckelhoff, J. F.
Affiliations
Mayo Clinic (US)
Venue
Hypertension
Published
1999-10
Volume
34
Issue
4
Pages
943-949
ISSN
  • 0194-911X (ISSN-L)
  • 1524-4563
OpenAlex
W2075090912
Cited by
358
References
78
Citations by year
2026: 3 · 2025: 4 · 2024: 4 · 2023: 4 · 2022: 2 · 2021: 10 · 2020: 5 · 2019: 6 · 2018: 7 · 2017: 8 · 2016: 19 · 2015: 9 · 2014: 6 · 2013: 9 · 2012: 19
FWCI
2.87
Type
journal article
Language
en
Open access
closed
Locations
  • Hypertension (publishedVersion)
  • PubMed (publishedVersion)
Funders
  • American Heart Association
  • National Institutes of Health
  • National Heart, Lung, and Blood Institute (HL 16496, HL‐51971, P01HL051971, R01HL016496)
Topics
  • Health Sciences › Medicine › Cardiology and Cardiovascular Medicine › Renin-Angiotensin System Studies
  • Life Sciences › Biochemistry, Genetics and Molecular Biology › Biochemistry › Eicosanoids and Hypertension Pharmacology
  • Health Sciences › Medicine › Physiology › Nitric Oxide and Endothelin Effects
Keywords
angiotensin II, oxidative stress, essential hypertension, 8-isoprostane, superoxide, nitric oxide, peroxynitrite, endothelin, vasoconstriction, antinatriuretic effect, renovascular hypertension
MeSH terms
Angiotensin II, Animals, Humans, Hypertension, Nitric Oxide, Dinoprost, Oxidative Stress

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