Trial reportEuropean journal of clinical pharmacology2003
A dose-response study of nitric oxide synthase inhibition in different vascular beds in man.
Trial report in European journal of clinical pharmacology, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
9 citing papers in PubMed, 39 citations in OpenAlex.
- Nitric oxide synthase inhibition in healthy adults reduces regional and total cerebral macrovascular blood flow and microvascular perfusion.The Journal of physiology · 2021Trial
- Dipeptidyl Peptidase-4 Inhibition Potentiates Stimulated Growth Hormone Secretion and Vasodilation in Women.Journal of the American Heart Association · 2018Trial
- Static autoregulation in humans.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2024Review
- Brain Blood Flow: The More You N.O.The Journal of physiology · 2022Article
- Oral Nitrate Supplementation Differentially Modulates Cerebral Artery Blood Velocity and Prefrontal Tissue Oxygenation During 15 km Time-Trial Cycling in Normoxia but Not in Hypoxia.Frontiers in physiology · 2018Article
- 2-Aminopyridines with a Truncated Side Chain To Improve Human Neuronal Nitric Oxide Synthase Inhibitory Potency and Selectivity.Journal of medicinal chemistry · 2015Article
- Arginine-based inhibitors of nitric oxide synthase: therapeutic potential and challenges.Mediators of inflammation · 2012Review
- Design, synthesis, and biological evaluation of 3,4-dihydroquinolin-2(1H)-one and 1,2,3,4-tetrahydroquinoline-based selective human neuronal nitric oxide synthase (nNOS) inhibitors.Journal of medicinal chemistry · 2011Article
- Short-term hypoxia reduces arterial stiffness in healthy men.European journal of applied physiology · 2009Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 1 institution in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
BACKGROUND AND
objectiveNitric oxide (NO) is an almost ubiquitous messenger molecule and is implicated in several disorders. NG monomethyl L-arginine ( L-NMMA:546C88) is an inhibitor of all three NO synthases (NOS), the enzymes that catalyse the production of NO. The present study was performed to evaluate the dose-response relation of L-NMMA to improve the design and interpretation of studies in migraine sufferers and other diseases.
methodsIn a double-blind, placebo-controlled, cross-over design, six healthy volunteers were randomised to receive three different doses of L-NMMA (0.3 mg/kg, 1 mg/kg, 3 mg/kg) or placebo (5% dextrose) intravenously (iv) over 5 min on four different days. On a fifth study day, in an open design, the same subjects received L-NMMA in the dose 6 mg/kg iv over 15 min. The effect of L-NMMA on the maximal mean blood velocity (Vmean) in the middle cerebral artery (MCA) (transcranial Doppler), the luminal diameter of the radial artery (high-frequency ultrasound), mean arterial blood pressure (MAP), heart rate and electrocardiogram were repeatedly followed every 5 min until 60 min after start of the infusion, then every 15 min during the following hour, and at 3 h and 4 h.
resultsInhibition of NOS had no effect on Vmean in MCA or on the diameter of the radial artery, but MAP increased and heart rate decreased dose dependently. With a dose of 6-mg/kg L-NMMA infused over a 15-min period, the maximum MAP increase was 20% 20 min after the start of L-NMMA infusion. The maximum decrease of heart rate was 24% 15 min after start of the L-NMMA infusion.
conclusionL-NMMA in a dose that caused marked changes in systemic blood pressure and heart rate had no effect on cerebral and radial arteries in man.
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Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.