Evidence map›Paper›PMID 17499230›Full record

ArticleCardiovascular research2007

NADPH oxidase-derived superoxide anion mediates angiotensin II-enhanced carotid body chemoreceptor sensitivity in heart failure rabbits.

Yu-Long Li, Lie Gao, Irving H Zucker, Harold D Schultz

Open access · bronzeAbstract read
In one paragraph

Article in Cardiovascular research, 2007. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
5.8field-weighted citation impact, top 3% 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

72 citing papers in PubMed, 118 citations in OpenAlex.

  1. Review
  2. Review
  3. Cellular basis of learning and memory in the carotid body.Frontiers in synaptic neuroscience · 2022
    Review
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12 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 2 countries.

Yu-Long LiDepartment of Cellular and Integrative Physiology, University of Nebraska Medical Center, Omaha, NE 68198-5850, USA.
Lie Gao
Irving H Zucker
Harold D Schultz
University of Nebraska Medical Center · USLaboratoire d’immunologie intégrative du cancer · FR

Funding

The Role of Excitatory Input into the PVN on Increased Sympathetic Drive in HeartP01HL062222 · NHLBI · UNIVERSITY OF NEBRASKA MEDICAL CENTER · PI SCHULTZ, HAROLD D · 1999 to 2019
$32.2M
THE REDOX-MEDIATED REGULATION OF IRON-RESPONSIVE GENE EXPRESSION IN LIVERP20RR017675 · NCRR · UNIVERSITY OF NEBRASKA LINCOLN · PI BECKER, DONALD F · 2002 to 2011
$20.4M
NCRR NIH HHS P20 RR017675NHLBI NIH HHS P01 HL062222NHLBI NIH HHS P01-HL62222
6 · The paper itself

Abstract

objectiveA previous study from this laboratory showed that elevation of endogenous angiotensin II (Ang II) and upregulation of the angiotensin II type 1 (AT(1)) receptor in the carotid body (CB) are involved in the enhanced peripheral chemoreceptor sensitivity in rabbits with chronic heart failure (CHF). NADPH oxidase-derived superoxide anion mediates the effects of Ang II in many organs. We investigated whether this signaling pathway may mediate the enhanced peripheral chemoreceptor sensitivity induced by Ang II in CHF rabbits. METHODS AND

resultsBy recording single-unit activity from the carotid sinus nerve in isolated preparations, we found that phenylarsine oxide 2 muM (PAO, NADPH oxidase inhibitor) and TEMPOL 1 mM (superoxide dismutase mimetic) significantly decreased not only the Ang II-enhanced CB chemoreceptor responses to different levels of hypoxia in sham rabbits (Delta-12.5+/-0.8 and Delta-12.8+/-0.9 imp/s at 40.7+/-2.3 mm Hg of PO(2), and Delta-5.6+/-0.5 and Delta-5.3+/-0.4 imp/s at 60.2+/-3.1 mm Hg of PO(2), p<0.05, respectively) but also the CHF-induced elevation of CB chemoreceptor responses to different levels of hypoxia (Delta-13.6+/-1.1 and Delta-13.7+/-0.9 imp/s at 40.9+/-3.1 mm Hg of PO(2), and Delta-6.7+/-1.2 and Delta-6.6+/-0.8 imp/s at 59.8+/-3.5 mm Hg of PO(2), p<0.05). In addition, mRNA and protein expressions of NADPH oxidase components (gp91(phox), p40(phox) and p47(phox)) were higher in the CB from CHF rabbits compared to sham rabbits. Furthermore, 100 pM Ang II induced an increase in superoxide production in CB homogenates from sham rabbits, which was similar to that in CB homogenate from CHF rabbits. PAO and Tempol inhibited the Ang II- and CHF-enhanced superoxide anion production.

conclusionsThese results suggest that the enhanced peripheral chemoreceptor sensitivity mediated by Ang II in CHF rabbits occurs via a NADPH oxidase-superoxide signaling pathway.

Indexed as

Action PotentialsAngiotensin IIAngiotensin II Type 1 Receptor BlockersAnimalsArsenicalsBlotting, WesternCarotid BodyChemoreceptor CellsCyclic N-OxidesHeart FailureMaleModels, AnimalNADPH OxidasesRabbitsReceptor, Angiotensin, Type 1Reverse Transcriptase Polymerase Chain ReactionAngiotensin IIAngiotensin II Type 1 Receptor BlockersArsenicalsCyclic N-OxidesNADPH OxidasesoxophenylarsineReceptor, Angiotensin, Type 1RNA, MessengerSpin LabelsSuperoxidestempol

Identifiers

PMID17499230
PMCPMC2062532
OpenAlexW2127031045

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.