Evidence map›Paper›PMID 24838748›Full record

ReviewAmerican journal of physiology. Lung cellular and molecular physiology2014

The polymorphic and contradictory aspects of intermittent hypoxia.

Isaac Almendros, Yang Wang, David Gozal

Abstract readReview
In one paragraph

Review in American journal of physiology. Lung cellular and molecular physiology, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 87 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
87citing papers in PubMed, 3 pooled it
–field-weighted citation impact
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

87 citing papers in PubMed, 3 syntheses or guidelines pooled it.

  1. Pooled it
  2. Can Hypoxic Conditioning Improve Bone Metabolism? A Systematic Review.International journal of environmental research and public health · 2019
    Pooled it
  3. Association between sleep apnea and low bone mass in adults: a systematic review and meta-analysis.Osteoporosis international : a journal established as result of cooperation between the European Foundation for Osteoporosis and the National Osteoporosis Foundation of the USA · 2017
    Pooled it
  4. Trial
  5. Trial
  6. Trial
  7. Mechanisms underlying end-organ injury in sleep apnoea.The European respiratory journal · 2026
    Review
  8. Review
  9. Review
  10. Cancer and obstructive sleep apnea.Chinese medical journal · 2025
    Article
  11. Article
  12. Review
  13. The histone demethylase KDM6B links obstructive sleep apnea to idiopathic pulmonary fibrosis.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2025
    Article
  14. [Reoxygenation improves reduced hypothalamic leptin responsiveness induced by intermittent hypoxia in obese rats].Nan fang yi ke da xue xue bao = Journal of Southern Medical University · 2024
    Article
  15. Article
  16. Article
  17. CORP: Sources and degrees of variability in whole animal intermittent hypoxia experiments.Journal of applied physiology (Bethesda, Md. : 1985) · 2023
    Article
  18. Article
  19. Article
  20. Article

27 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

3 authors.

Isaac AlmendrosDepartment of Pediatrics, Comer Children's Hospital, Pritzker School of Medicine, The University of Chicago, Chicago, Illinois.
Yang WangDepartment of Pediatrics, Comer Children's Hospital, Pritzker School of Medicine, The University of Chicago, Chicago, Illinois.
David GozalDepartment of Pediatrics, Comer Children's Hospital, Pritzker School of Medicine, The University of Chicago, Chicago, Illinois dgozal@uchicago.edu.

Funding

Re-Engineering Translational Research at the University of ChicagoUL1TR000430 · NCATS · UNIVERSITY OF CHICAGO · PI SOLWAY, JULIAN · 2012 to 2016
$20.2M
NEUROCOGNITIVE FUNCTION IN SNORING CHILDRENR01HL065270 · NHLBI · UNIVERSITY OF LOUISVILLE · PI GOZAL, DAVID · 1999 to 2014
$5.0M
Oxidative stress in a murine model of sleep apneaR01HL086662 · NHLBI · UNIVERSITY OF LOUISVILLE · PI GOZAL, DAVID · 2008 to 2012
$1.9M
Validation of Urinary Biomarkers in Diagnosis of Pediatric OSAP50HL107160 · NHLBI · UNIVERSITY OF CHICAGO · PI GOZAL, DAVID · 2011 to 2012
$923k
NCATS NIH HHS UL1 TR000430NHLBI NIH HHS HL-086662NHLBI NIH HHS HL-107160NHLBI NIH HHS HL-65270
6 · The paper itself

Abstract

Intermittent hypoxia (IH) has been extensively studied during the last decade, primarily as a surrogate model of sleep apnea. However, IH is a much more pervasive phenomenon in human disease, is viewed as a potential therapeutic approach, and has also been used in other disciplines, such as in competitive sports. In this context, adverse outcomes involving cardiovascular, cognitive, metabolic, and cancer problems have emerged in obstructive sleep apnea-based studies, whereas beneficial effects of IH have also been identified. Those a priori contradictory findings may not be as contradictory as initially thought. Indeed, the opposite outcomes triggered by IH can be explained by the specific characteristics of the large diversity of IH patterns applied in each study. The balance between benefits and injury appears to primarily depend on the ability of the organism to respond and activate adaptive mechanisms to IH. In this context, the adaptive or maladaptive responses can be generally predicted by the frequency, severity, and duration of IH. However, the presence of underlying conditions such as hypertension or obesity, as well as age, sex, or genotypic variance, may be important factors tilting the balance between an appropriate homeostatic response and decompensation. Here, the two possible facets of IH as derived from human and experimental animal settings will be reviewed.

Indexed as

Adaptation, PhysiologicalAnimalsCognitionCognition DisordersDisease Models, AnimalHumansHypertensionHypoxiaHypoxia-Inducible Factor 1, alpha SubunitIschemic PreconditioningIschemic Preconditioning, MyocardialOxidative StressSleep Apnea, ObstructiveHIF1A protein, humanHypoxia-Inducible Factor 1, alpha Subunitbeneficial and pathological effectsintermittent hypoxiasleep apnea

Identifiers

PMID24838748
PMCPMC4101794

What Socratic 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 Socratic graph.