Evidence map›Paper›PMID 27679490›Full record

ArticleThe Journal of biological chemistry2016

Formation of Nitric Oxide by Aldehyde Dehydrogenase-2 Is Necessary and Sufficient for Vascular Bioactivation of Nitroglycerin.

Marissa Opelt, Emrah Eroglu, Markus Waldeck-Weiermair, Michael Russwurm, Doris Koesling, Roland Malli, Wolfgang F Graier, John T Fassett, Astrid Schrammel, Bernd Mayer

Open access · hybridAbstract read
In one paragraph

Article in The Journal of biological chemistry, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
1.8field-weighted citation impact, top 16% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

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.

2 · The registry

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.

3 · Its place in the literature

Who cites it

21 citing papers in PubMed, 39 citations in OpenAlex.

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  6. Association of Different Combinations ofInternational journal of general medicine · 2023
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  7. International journal of general medicine · 2023
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  15. Discordance between eNOS phosphorylation and activation revealed by multispectral imaging and chemogenetic methods.Proceedings of the National Academy of Sciences of the United States of America · 2019
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

10 authors at 3 institutions in 2 countries.

Marissa OpeltFrom the Institute of Pharmaceutical Sciences, Department of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria.
Emrah Erogluthe Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria, and.
Markus Waldeck-Weiermairthe Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria, and.
Michael Russwurmthe Department of Pharmacology and Toxicology, Ruhr University Bochum, 44780 Bochum, Germany.
Doris Koeslingthe Department of Pharmacology and Toxicology, Ruhr University Bochum, 44780 Bochum, Germany.
Roland Mallithe Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria, and.
Wolfgang F Graierthe Institute of Molecular Biology and Biochemistry, Center of Molecular Medicine, Medical University of Graz, 8010 Graz, Austria, and.
John T FassettFrom the Institute of Pharmaceutical Sciences, Department of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria.
Astrid SchrammelFrom the Institute of Pharmaceutical Sciences, Department of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria.
Bernd MayerFrom the Institute of Pharmaceutical Sciences, Department of Pharmacology and Toxicology, University of Graz, A-8010 Graz, Austria, mayer@uni-graz.at.
Medical University of Graz · ATUniversity of Graz · ATRuhr University Bochum · DE

Funding

Austrian Science Fund FWF P 28529Austrian Science Fund FWF W 1226
6 · The paper itself

Abstract

Aldehyde dehydrogenase-2 (ALDH2) catalyzes vascular bioactivation of the antianginal drug nitroglycerin (GTN), resulting in activation of soluble guanylate cyclase (sGC) and cGMP-mediated vasodilation. We have previously shown that a minor reaction of ALDH2-catalyzed GTN bioconversion, accounting for about 5% of the main clearance-based turnover yielding inorganic nitrite, results in direct NO formation and concluded that this minor pathway could provide the link between vascular GTN metabolism and activation of sGC. However, lack of detectable NO at therapeutically relevant GTN concentrations (≤1 μm) in vascular tissue called into question the biological significance of NO formation by purified ALDH2. We addressed this issue and used a novel, highly sensitive genetically encoded fluorescent NO probe (geNOp) to visualize intracellular NO formation at low GTN concentrations (≤1 μm) in cultured vascular smooth muscle cells (VSMC) expressing an ALDH2 mutant that reduces GTN to NO but lacks clearance-based GTN denitration activity. NO formation was compared with GTN-induced activation of sGC. The addition of 1 μm GTN to VSMC expressing either wild-type or C301S/C303S ALDH2 resulted in pronounced intracellular NO elevation, with maximal concentrations of 7 and 17 nm, respectively. Formation of GTN-derived NO correlated well with activation of purified sGC in VSMC lysates and cGMP accumulation in intact porcine aortic endothelial cells infected with wild-type or mutant ALDH2. Formation of NO and cGMP accumulation were inhibited by ALDH inhibitors chloral hydrate and daidzin. The present study demonstrates that ALDH2-catalyzed NO formation is necessary and sufficient for GTN bioactivation in VSMC.

Indexed as

Aldehyde Dehydrogenase, MitochondrialAmino Acid SubstitutionAnimalsCattleChloral HydrateHumansIsoflavonesMiceMice, KnockoutMuscle, Smooth, VascularMutation, MissenseMyocytes, Smooth MuscleNitric OxideNitroglycerinSwineAldehyde Dehydrogenase, MitochondrialALDH2 protein, humanALDH2 protein, mouseChloral HydratedaidzinIsoflavonesNitric OxideNitroglycerinaldehyde dehydrogenase-2cyclic GMP (cGMP)metabolismmutagenesis in vitronitric oxidenitroglycerinsite-directed mutagenesisvascular smooth muscle cells

Identifiers

PMID27679490
PMCPMC5104933
OpenAlexW2525185519

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.