Evidence map›Paper›PMID 26801309›Full record

ArticleAmerican journal of physiology. Heart and circulatory physiology2016

ERK1/2 MAPK signaling in hypothalamic paraventricular nucleus contributes to sympathetic excitation in rats with heart failure after myocardial infarction.

Yang Yu, Shun-Guang Wei, Zhi-Hua Zhang, Robert M Weiss, Robert B Felder

Open access · greenAbstract read
In one paragraph

Article in American journal of physiology. Heart and circulatory physiology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 2 pooled it
5.4field-weighted citation impact, top 4% 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, 2 syntheses or guidelines pooled it, 45 citations in OpenAlex.

  1. Pooled it
  2. Guidelines for experimental models of myocardial ischemia and infarction.American journal of physiology. Heart and circulatory physiology · 2018
    Guideline
  3. Article
  4. Review
  5. Article
  6. Review
  7. Angiotensin II inhibits the A-type KAmerican journal of physiology. Regulatory, integrative and comparative physiology · 2022
    Article
  8. Review
  9. Article
  10. Article
  11. Review
  12. Article
  13. Article
  14. Article
  15. Article
  16. Effects ofEvidence-based complementary and alternative medicine : eCAM · 2021
    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

5 authors at 1 institution in 1 country.

Yang YuDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa.
Shun-Guang WeiDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa.
Zhi-Hua ZhangDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa.
Robert M WeissDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa.
Robert B FelderDepartment of Internal Medicine, Roy J. and Lucille A. Carver College of Medicine, University of Iowa, Iowa City, Iowa robert-felder@uiowa.edu.
University of Iowa · US

Funding

Cytokines and Sympathetic Activation in Heart FailureR01HL073986 · NHLBI · UNIVERSITY OF IOWA · PI FELDER, ROBERT B · 2003 to 2017
$5.2M
Brain MAP Kinases - Substrate for Sympathetic Excitation in Heart FailureR01HL096671 · NHLBI · UNIVERSITY OF IOWA · PI FELDER, ROBERT B · 2011 to 2014
$1.5M
High-Resolution Research UltrasoundS10OD019941 · OD · UNIVERSITY OF IOWA · PI WEISS, ROBERT M · 2015 to 2015
$298k
NHLBI NIH HHS R01 HL073986NHLBI NIH HHS R01-HL-073986NHLBI NIH HHS R01 HL096671NHLBI NIH HHS R01-HL-096671NIH HHS S10 OD019941NIH HHS S10-OD-019941
6 · The paper itself

Abstract

Brain MAPK signaling pathways are activated in heart failure (HF) induced by myocardial infarction and contribute to augmented sympathetic nerve activity. We tested whether decreasing ERK1/2 (also known as p44/42 MAPK) signaling in the hypothalamic paraventricular nucleus (PVN), a forebrain source of presympathetic neurons, would reduce the upregulation of sympathoexcitatory mediators in the PVN and augmented sympathetic nerve activity in rats with HF. Sprague-Dawley rats underwent left anterior descending coronary artery ligation to induce HF, with left ventricular dysfunction confirmed by echocardiography. One week after coronary artery ligation or sham operation, small interfering (si)RNAs targeting ERK1/2 or a nontargeting control siRNA was microinjected bilaterally into the PVN. Experiments were conducted 5-7 days later. Confocal images revealed reduced phosphorylated ERK1/2 immunofluorescence in the PVN of HF rats treated with ERK1/2 siRNAs compared with HF rats treated with control siRNA. Western blot analysis confirmed significant reductions in both total and phosphorylated ERK1/2 in the PVN of HF rats treated with ERK1/2 siRNAs along with reduced expression of renin-angiotensin system components and inflammatory mediators. HF rats treated with ERK1/2 siRNAs also had reduced PVN neuronal excitation (fewer Fos-related antigen-like-immunoreactive neurons), lower plasma norepinephrine levels, and improved peripheral manifestations of HF compared with HF rats treated with control siRNAs. These results demonstrate that ERK1/2 signaling in the PVN plays a pivotal role in mediating sympathetic drive in HF induced by myocardial infarction and may be a novel target for therapeutic intervention.

Indexed as

AnimalsBlotting, WesternCerebral CortexEchocardiographyGene Knockdown TechniquesHeart FailureImmunohistochemistryMAP Kinase Signaling SystemMyocardial InfarctionNorepinephrineParaventricular Hypothalamic NucleusRatsRats, Sprague-DawleyRenin-Angiotensin SystemRNA, Small InterferingSympathetic Nervous SystemNorepinephrineRNA, Small Interferingautonomic regulationbrainextracellular signal-regulated kinases 1 and 2mitogen-activated protein kinaseproinflammatory cytokinesrenin-angiotensin system

Identifiers

PMID26801309
PMCPMC4865063
OpenAlexW2296533040

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.