Evidence map›Paper›PMID 32702263›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2020

Intermittent hypoxia enhances shear-mediated dilation of the internal carotid artery in young adults.

Erika Iwamoto, Brady E Hanson, Joshua M Bock, Darren P Casey

Open access · bronzeAbstract read
PubMed Publisher
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed
3.9field-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

23 citing papers in PubMed, 40 citations in OpenAlex.

  1. Trial
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  3. Effect of a Single Session of Intermittent Hypoxia on Erythropoietin and Oxygen-Carrying Capacity.International journal of environmental research and public health · 2020
    Trial
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  13. Relationship between Hypoxia and Hypercapnia Tolerance and Life Expectancy.International journal of molecular sciences · 2024
    Review
  14. Handgrip exercise does not alter COExperimental physiology · 2023
    Article
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

4 authors at 2 institutions in 2 countries.

Erika IwamotoHuman Integrative and Cardiovascular Physiology Laboratory, Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa.
Brady E HansonHuman Integrative and Cardiovascular Physiology Laboratory, Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa.
Joshua M BockHuman Integrative and Cardiovascular Physiology Laboratory, Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa.
Darren P CaseyHuman Integrative and Cardiovascular Physiology Laboratory, Department of Physical Therapy and Rehabilitation Science, University of Iowa, Iowa City, Iowa.
University of Iowa · USFraternal Order of Eagles · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Cyclic intermittent hypoxia (IH) increases cerebral blood velocity. This enhanced velocity augments the commensurate shear stimulus and may subsequently increase cerebrovascular endothelial function. This study aimed to examine the effects of cyclic IH on hypercapnia-induced shear-mediated dilation of the internal carotid artery (ICA), a potential index of cerebrovascular endothelial function. Shear-mediated dilation was measured in nine adults (22 ± 4 yr) before as well as after 50 min of cyclic IH [5 cycles, 4 min of normoxia, followed by 6 min of hypoxia (target 80% [Formula: see text]) per cycle] and control normoxia (sham, 50 min of continuous normoxia) on separate days (≥72 h apart). ICA diameter and velocity were measured using Doppler ultrasound during cyclic IH and hypercapnia. Shear-mediated dilation was induced by 3 min of hypercapnia (Δ[Formula: see text]; IH: pre 10.1 ± 1.0 mmHg, post 10.8 ± 1.3 mmHg; sham: pre 10.5 ± 1.5 mmHg, post 10.8 ± 1.5 mmHg) and was calculated as the percent rise in peak relative to baseline diameter. Hypoxia increased ICA blood flow and shear rate (SR) during each cycle [blood flow: 322 ± 90 to 406 ± 74 mL/min,

Indexed as

Carotid Artery, InternalVasodilationBlood Flow VelocityDilatationHumansHypercapniaHypoxiaYoung Adultcyclic intermittent hypoxiahypercapniainternal carotid arteryshear-mediated dilation

Identifiers

PMID32702263
OpenAlexW3044585553

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.