Cited by 123Nitric Oxide and Endothelin EffectsCardiovascular Health and Disease PreventionEicosanoids and Hypertension Pharmacology

L-arginine availability determines the duration of acetylcholine-induced systemic vasodilatation in vivo

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Aisaka, Kazuo, Gross, Steven S., Griffith, Owen W., Levi, Roberto·1989·Biochemical and Biophysical Research Communications

Abstract

In vitro studies have shown that acetylcholine-induced vasorelaxation is mediated by endothelium-derived relaxing factor/nitric oxide (EDRF/NO). EDRF/NO is synthesized from L-arginine by an enzymatic pathway that is inhibited by L-NG-methylarginine. To assess whether EDRF/NO also mediates the vasodilating action of acetylcholine in vivo, we have investigated the effect of L-arginine and L-NG-methylarginine on the hypotensive response to acetylcholine in the anesthetized guinea pig. L-arginine prolonged the duration of the depressor response to acetylcholine and L-NG-methylarginine decreased it. However, neither L-arginine nor L-NG-methylarginine modified the magnitude of acetylcholine's hypotensive effect unless the blood pressure was previously elevated by infusion with norepinephrine. Thus, de novo synthesis of nitric oxide from L-arginine contributes importantly, but not exclusively, to acetylcholine's hypotensive effect in the guinea pig. Furthermore, the concentration of circulating L-arginine may influence the duration and magnitude of acetylcholine-induced depressor responses under normotensive and hypertensive conditions.

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Crossref · 10.1016/0006-291x(89)92281-x

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Authors
Aisaka, K., Gross, S. S., Griffith, O. W., & Levi, R.
Affiliations
Cornell University (US)
Corresponding author
Levi, Roberto
Venue
Biochemical and Biophysical Research Communications
Publisher
Elsevier BV
Published
1989-09
Volume
163
Issue
2
Pages
710-717
ISSN
0006-291X (ISSN-L)
OpenAlex
W2006890214
Cited by
123
References
22
Citations by year
2025: 1 · 2021: 1 · 2018: 2 · 2015: 1 · 2014: 2
FWCI
7.75
Type
journal article
Language
en
Open access
Locations
  • Biochemical and Biophysical Research Communications (publishedVersion, cc-by-nc-nd)
  • PubMed (publishedVersion)
Funders
National Heart, Lung, and Blood Institute (HL37407, HL18828, HL-34215)
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 › Biochemistry › Eicosanoids and Hypertension Pharmacology
Keywords
L-arginine, acetylcholine, nitric oxide, endothelium-derived relaxing factor, systemic vasodilatation, hypotensive response, norepinephrine-induced hypertension, guinea pig, nitric oxide synthase
MeSH terms
Acetylcholine, Animals, Arginine, Biological Availability, Blood Pressure, Depression, Chemical, Guinea Pigs, Male, Nitric Oxide, Time Factors, Vasodilation, omega-N-Methylarginine

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