Evidence map›Paper›PMID 22679437›Full record

ArticleFrontiers in physiology2012

NOX4-Dependent Hydrogen Peroxide Overproduction in Human Atrial Fibrillation and HL-1 Atrial Cells: Relationship to Hypertension.

Jun Zhang, Ji Youn Youn, Antony Y Kim, Rafael J Ramirez, Ling Gao, Doan Ngo, Peng Chen, Jennifer Scovotti, Aman Mahajan, Hua Cai

Open access · goldAbstract read
In one paragraph

Article in Frontiers in physiology, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
3.0field-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, 1 synthesis or guideline pooled it, 52 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Review
  4. Review
  5. Oxidative stress and atrial fibrillation.Journal of molecular and cellular cardiology · 2024
    Review
  6. Article
  7. Review
  8. Review
  9. IiScience · 2022
    Article
  10. Review
  11. Article
  12. Article
  13. Genome-wide analysis of circular RNA expression profiles in patients with atrial fibrillation.International journal of clinical and experimental pathology · 2020
    Article
  14. Review
  15. Effects of N-acetyl cysteine, vitamin E and vitamin C on liver glutathione levels following amiodarone treatment in rats.Kardiochirurgia i torakochirurgia polska = Polish journal of cardio-thoracic surgery · 2019
    Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Article
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 1 institution in 1 country.

Jun ZhangDivision of Molecular Medicine, Cardiovascular Research Laboratories, Department of Anesthesiology, David Geffen School of Medicine at University of California Los Angeles Los Angeles, CA, USA.
Ji Youn Youn
Antony Y Kim
Rafael J Ramirez
Ling Gao
Doan Ngo
Peng Chen
Jennifer Scovotti
Aman Mahajan
Hua Cai
University of California, Los Angeles · US

Funding

Angiotensin II Uncoupling of Enos in HypertensionR01HL077440 · NHLBI · UNIVERSITY OF CHICAGO · PI CAI, HUA LINDA · 2005 to 2019
$4.8M
NOXs, eNOS Uncoupling and Diabetic AtherogenesisR01HL088975 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CAI, HUA LINDA · 2010 to 2019
$4.5M
Mitochondrial pathways in NO induced cardioprotectionR01HL101228 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CAI, HUA LINDA, PING, PEIPEI · 2010 to 2013
$2.6M
Role of Vascular Oxidative Stress in ObesityR01HL108701 · NHLBI · UNIVERSITY OF CALIFORNIA LOS ANGELES · PI CAI, HUA LINDA, HARRISON, DAVID G · 2012 to 2015
$1.9M
Endocardial dysfunction in humans with AFR21HL081571 · NHLBI · UNIVERSITY OF CHICAGO · PI CAI, HUA LINDA · 2005 to 2006
$302k
NHLBI NIH HHS R01 HL077440NHLBI NIH HHS R01 HL088975NHLBI NIH HHS R01 HL101228NHLBI NIH HHS R01 HL108701NHLBI NIH HHS R21 HL081571
6 · The paper itself

Abstract

BACKGROUND/

objectivesAtrial fibrillation (AF) is the most common type of cardiac arrhythmia with patients dying frequently of stroke. In view of the unclear etiologies of AF and a potential role of oxidative stress, the present study examined cardiac reactive oxygen species production and NADPH oxidase (NOX) expression in AF patients. METHODS AND

resultsPatients with AF were older than those without (58.8 ± 11.7 vs. 47.8 ± 19.2, p = 0.047). Whereas total [Formula: see text] production (determined by electron spin resonance) was similar in patients with and without AF, H(2)O(2) production was more than doubled in AF patients (149.8 ± 26.28 vs. 66.9 ± 7.14 pmol/mg/min, p = 0.0055), which correlated well with a doubling in NOX isoform 4 (NOX4) expression. AF patients with co-existing hypertension had three-fold higher H(2)O(2) production compared to those without (239.0 ± 125.1 vs. 83.6 ± 51.3 pmol/mg/min, p = 0.003). Treatment of HL-1 atrial cells with angiotensin II, a known modulator of atrial structural remodeling, resulted in upregulation of NOX4 and H(2)O(2) production, further implicating a potential role of NOX4 in atrial remodeling.

conclusionOur data represent the first implication that NOX4-derived H(2)O(2) may play an important role in the etiologies of AF.

Indexed as

angiotensin IIatrial fibrillationHL-1 cellshydrogen peroxidehypertensionNADPH oxidaseNOX4

Identifiers

PMID22679437
PMCPMC3367314
OpenAlexW2048397551

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC
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.