Evidence map›Paper›PMID 24068047›Full record

ArticleAmerican journal of physiology. Regulatory, integrative and comparative physiology2013

Norepinephrine increases NADPH oxidase-derived superoxide in human peripheral blood mononuclear cells via α-adrenergic receptors.

Shekhar H Deo, Nathan T Jenkins, Jaume Padilla, Alan R Parrish, Paul J Fadel

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Regulatory, integrative and comparative physiology, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.8field-weighted citation impact, top 9% 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

31 citing papers in PubMed, 60 citations in OpenAlex.

  1. Trial
  2. Trial
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  4. Article
  5. Article
  6. TBrain, behavior, and immunity · 2025
    Article
  7. Review
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  12. Article
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  14. Impact of acute antioxidant supplementation on vascular function and autonomic nervous system modulation in young adults with PTSD.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Article
  15. Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. Loneliness, Social Isolation, and Cardiovascular Health.Antioxidants & redox signaling · 2018
    Review
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

5 authors at 1 institution in 1 country.

Shekhar H DeoDepartment of Medical Pharmacology and Physiology, University of Missouri, Columbia, Missouri;
Nathan T Jenkins
Jaume Padilla
Alan R Parrish
Paul J Fadel
University of Missouri · US

Funding

Exercise &Health: Integration from Molecule to PatientT32AR048523 · NIAMS · UNIVERSITY OF MISSOURI-COLUMBIA · PI TERJUNG, RONALD L · 2003 to 2013
$2.5M
Aging, Sex, and Neural Cardiovascular Control During Dynamic ExerciseR01HL093167 · NHLBI · UNIVERSITY OF MISSOURI-COLUMBIA · PI FADEL, PAUL J · 2008 to 2012
$2.0M
NHLBI NIH HHS R01-HL-093167NIAMS NIH HHS T32-AR-048523
6 · The paper itself

Abstract

Many diseases associated with sympathoexcitation also exhibit elevated reactive oxygen species (ROS). A recent animal study indicated that exogenous administration of the sympathetic neurotransmitter norepinephrine (NE) increased systemic ROS via circulating leukocytes. The mechanisms contributing to this effect of NE and whether these findings can be translated to humans is unknown. Thus we tested the hypothesis that NE increases superoxide production in human peripheral blood mononuclear cells (PBMCs) via NADPH oxidase. Primary human PBMCs were freshly isolated from healthy young men and placed in culture. After NE (50 pg/ml, 50 ng/ml, and 50 μg/ml concentrations) or control treatments, NADPH oxidase mRNA expression (gp91(phox), p22(phox), and p67(phox)) was assessed using real-time RT-PCR, and intracellular superoxide production was measured using dihydroethidium fluorescence. PBMCs were also treated with selective adrenergic agonists-antagonists to determine the receptor population involved. In addition, CD14(+) monocyte-endothelial cell adhesion was determined using a fluorescent-based assay. NE significantly increased NADPH oxidase gene expression and intracellular superoxide production in a time-dependent manner (superoxide: 0.9 ± 0.2 fold, 6 h vs. 3.0 ± 0.3 fold, 36 h; NE, 50 μg/ml; P < 0.05). The sustained increase in NE-induced superoxide production was primarily mediated via α-adrenergic receptors, preferentially α2-receptors. The NADPH oxidase blocker diphenylene iodonium and protein kinase C inhibitor Staurosporine significantly attenuated NE-induced increases in superoxide production. Importantly, NE treatment increased CD14(+) monocyte-endothelial cell adhesion. These findings indicate for the first time that NE increases superoxide production in freshly isolated primary human PBMCs via NADPH oxidase through α-adrenergic receptors, an effect facilitating monocyte adhesion to the endothelium.

Indexed as

AdultCell AdhesionGene Expression Regulation, EnzymologicHumansLeukocytes, MononuclearLipopolysaccharide ReceptorsMaleMonocytesNADPH OxidasesNorepinephrineProtein Kinase CProtein SubunitsReal-Time Polymerase Chain ReactionReceptors, Adrenergic, alphaReverse Transcriptase Polymerase Chain ReactionSuperoxidesLipopolysaccharide ReceptorsNADPH OxidasesNorepinephrineProtein Kinase CProtein SubunitsReceptors, Adrenergic, alphaSuperoxidesoxidative stressreactive oxygen speciessympathetic nerve activity

Identifiers

PMID24068047
PMCPMC3841802
OpenAlexW1967604577

What OpenQuestion holds

Textmetadata
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.