Evidence map›Paper›PMID 20153844›Full record

ArticleRespiratory physiology & neurobiology2010

Chronic intermittent hypoxia augments chemoreflex control of sympathetic activity: role of the angiotensin II type 1 receptor.

Noah J Marcus, Yu-Long Li, Cynthia E Bird, Harold D Schultz, Barbara J Morgan

Abstract read
In one paragraph

Article in Respiratory physiology & neurobiology, 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 91 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
91citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 5% 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

91 citing papers in PubMed, 1 synthesis or guideline pooled it, 150 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. HBiomedicines · 2026
    Article
  4. Review
  5. Article
  6. Review
  7. Article
  8. Advancements in the neurocirculatory reflex response to hypoxia.American journal of physiology. Regulatory, integrative and comparative physiology · 2024
    Review
  9. Review
  10. Review
  11. Article
  12. Article
  13. Review
  14. Article
  15. Article
  16. Review
  17. Observational
  18. Article
  19. Article
  20. Role of angiotensin II in chronic intermittent hypoxia-induced hypertension and cognitive decline.American journal of physiology. Regulatory, integrative and comparative physiology · 2021
    Review

31 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

5 authors at 2 institutions in 1 country.

Noah J MarcusDepartment of Kinesiology, University of Wisconsin, Madison, WI 53706, USA.
Yu-Long Li
Cynthia E Bird
Harold D Schultz
Barbara J Morgan
University of Wisconsin–Madison · USUniversity of Nebraska Medical Center · US

Funding

Respiratory NeurobiologyT32HL007654 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI MITCHELL, GORDON S. · 1987 to 2011
$4.0M
Sleep Disordered Breathing and Vasomotor RegulationR01HL074072 · NHLBI · UNIVERSITY OF WISCONSIN-MADISON · PI MORGAN, BARBARA J · 2004 to 2007
$1.4M
NHLBI NIH HHS HL 074072NHLBI NIH HHS R01 HL074072NHLBI NIH HHS T32 HL007654NHLBI NIH HHS T32 HL07654
6 · The paper itself

Abstract

Chronic exposure to intermittent hypoxia (CIH) increases carotid sinus nerve activity in normoxia and in response to acute hypoxia. We hypothesized that CIH augments basal and chemoreflex-stimulated sympathetic outflow through an angiotensin receptor-dependent mechanism. Rats were exposed to CIH for 28 days: a subset was treated with losartan. Then, lumbar sympathetic activity was recorded under anesthesia during 20-s apneas, isocapnic hypoxia, and potassium cyanide. We measured carotid body superoxide production and expression of angiotensin II type-1 receptor, neuronal nitric oxide synthase, and NADPH oxidase. Sympathetic activity was higher in CIH vs. control rats at baseline, during apneas and isocapnic hypoxia, but not cyanide. Carotid body superoxide production and expression of angiotensin II type 1 receptor and gp91(phox) subunit of NADPH oxidase were elevated in CIH rats, whereas expression of neuronal nitric oxide synthase was reduced. None of these differences were evident in animals treated with losartan. CIH-induced augmentation of chemoreflex sensitivity occurs, at least in part, via the renin-angiotensin system.

Indexed as

Angiotensin IIAngiotensin II Type 1 Receptor BlockersAnimalsApneaBlood PressureCarotid BodyChemoreceptor CellsGene Expression RegulationHypoxiaLosartanMaleNADPH OxidasesNitric Oxide Synthase Type IOxygen ConsumptionRatsRats, Sprague-DawleyAngiotensin IIAngiotensin II Type 1 Receptor BlockersLosartanNADPH OxidasesNitric Oxide Synthase Type IReceptor, Angiotensin, Type 1Superoxides

Identifiers

PMID20153844
PMCPMC2846996
OpenAlexW2069253560

What OpenQuestion holds

Textmetadata
LicenceTDM
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.