Evidence map›Paper›PMID 20713189›Full record

ReviewRespiratory physiology & neurobiology2010

Hypoxia-induced changes in pulmonary and systemic vascular resistance: where is the O2 sensor?

Gregory B Waypa, Paul T Schumacker

Abstract readReview
In one paragraph

Review 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 45 papers.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed
4.4field-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

45 citing papers in PubMed, 76 citations in OpenAlex.

  1. Article
  2. Article
  3. Review
  4. Fontan Circulation and High Cardiac Output State: A Forgotten Phenotype.CJC pediatric and congenital heart disease · 2025
    Article
  5. Review
  6. Article
  7. Review
  8. Article
  9. Review
  10. Article
  11. Review
  12. Regulation of Oxygen Homeostasis at the Intestinal Epithelial Barrier Site.International journal of molecular sciences · 2021
    Review
  13. Article
  14. Pulmonary Hypertension in Acute and Chronic High Altitude Maladaptation Disorders.International journal of environmental research and public health · 2021
    Review
  15. Embryo and Its Mitochondria.Antioxidants (Basel, Switzerland) · 2021
    Review
  16. Review
  17. Redox Signaling and Regional Heterogeneity of Endothelial Dysfunction inInternational journal of molecular sciences · 2020
    Article
  18. Article
  19. Review
  20. Where Is the "Optimal" Fontan Hemodynamics?Korean circulation journal · 2017
    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

2 authors at 2 institutions in 2 countries.

Gregory B WaypaDepartment of Pediatrics, Division of Neonatology, Northwestern University, Morton Building 4-685, 310 East Superior St, Chicago, IL 60611, USA. g-waypa@northwestern.edu
Paul T Schumacker
Northwestern University · PHNorthwestern University · US

Funding

Respiratory and Metabolic Adaptation to HypoxiaR01HL035440 · NHLBI · UNIVERSITY OF CHICAGO · PI SCHUMACKER, PAUL T · 1986 to 2018
$5.0M
O2 Sensing in Hypoxic Pulmonary VasoconstrictionR01HL079650 · NHLBI · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SCHUMACKER, PAUL T · 2005 to 2009
$1.6M
O2 SENSING BY MITOCHONDRIA DURING INTERMITTENT HYPOXIAR01HL066315 · NHLBI · UNIVERSITY OF CHICAGO · PI SCHUMACKER, PAUL T. · 2000 to 2003
$1.1M
Monitoring cellular redox signaling and oxidant stress in vivoR21RR025355 · NCRR · NORTHWESTERN UNIVERSITY AT CHICAGO · PI SCHUMACKER, PAUL T · 2009 to 2010
$511k
NCRR NIH HHS R21 RR025355NCRR NIH HHS RR025355NHLBI NIH HHS HL079650NHLBI NIH HHS HL35440NHLBI NIH HHS R01 HL035440NHLBI NIH HHS R01 HL066315NHLBI NIH HHS R01 HL079650
6 · The paper itself

Abstract

Pulmonary arteries (PA) constrict in response to alveolar hypoxia, whereas systemic arteries (SA) undergo dilation. These physiological responses reflect the need to improve gas exchange in the lung, and to enhance the delivery of blood to hypoxic systemic tissues. An important unresolved question relates to the underlying mechanism by which the vascular cells detect a decrease in oxygen tension and translate that into a signal that triggers the functional response. A growing body of work implicates the mitochondria, which appear to function as O2 sensors by initiating a redox-signaling pathway that leads to the activation of downstream effectors that regulate vascular tone. However, the direction of this redox signal has been the subject of controversy. Part of the problem has been the lack of appropriate tools to assess redox signaling in live cells. Recent advancements in the development of redox sensors have led to studies that help to clarify the nature of the hypoxia-induced redox signaling by reactive oxygen species (ROS). Moreover, these studies provide valuable insight regarding the basis for discrepancies in earlier studies of the hypoxia-induced mechanism of redox signaling. Based on recent work, it appears that the O2 sensing mechanism in both the PA and SA are identical, that mitochondria function as the site of O2 sensing, and that increased ROS release from these organelles leads to the activation of cell-specific, downstream vascular responses.

Indexed as

AnimalsBlood VesselsCell HypoxiaHumansMitochondriaMuscle, SmoothOxygenPulmonary ArteryReactive Oxygen SpeciesVascular ResistanceVasodilationOxygenReactive Oxygen Species

Identifiers

PMID20713189
PMCPMC2991475
OpenAlexW2062946803

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.