Evidence map›Paper›PMID 29604234›Full record

ArticleExperimental physiology2018

Increased skeletal muscle mitochondrial free radical production in peripheral arterial disease despite preserved mitochondrial respiratory capacity.

Corey R Hart, Gwenael Layec, Joel D Trinity, Oh Sung Kwon, Jia Zhao, Van R Reese, Jayson R Gifford, Russell S Richardson

Open access · bronzeAbstract read
In one paragraph

Article in Experimental physiology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 33 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
33citing papers in PubMed, 1 pooled it
4.0field-weighted citation impact, top 6% 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

33 citing papers in PubMed, 1 synthesis or guideline pooled it, 45 citations in OpenAlex.

  1. Sarcopenia and peripheral arterial disease: a systematic review.Journal of cachexia, sarcopenia and muscle · 2020
    Pooled it
  2. Trial
  3. The Role of Home-Based Exercise in the Management of Peripheral Artery Disease.Current treatment options in cardiovascular medicine · 2026
    Article
  4. Article
  5. Article
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  11. Clinical physiology: the crucial role of MRI in evaluation of peripheral artery disease.American journal of physiology. Heart and circulatory physiology · 2024
    Review
  12. Article
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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

8 authors at 4 institutions in 1 country.

Corey R HartGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Gwenael LayecGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Joel D TrinityGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Oh Sung KwonGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Jia ZhaoGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Van R ReeseGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Jayson R GiffordGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Russell S RichardsonGeriatric Research, Education, and Clinical Center, George E. Whalen VA Medical Center, Salt Lake City, UT, USA.
Geriatric Research Education and Clinical Center · USGeorge E. Wahlen Department of VA Medical Center · USLake City VA Medical Center · USUniversity of Utah · US

Funding

Nitric oxide coupling and BH4 availability roles in muscle dysfunction with COPDK99HL125756 · NHLBI · UNIVERSITY OF UTAH · PI LAYEC, GWENAEL · 2015 to 2016
$300k
NHLBI NIH HHS K99 HL125756RRD VA I01 RX000182
6 · The paper itself

Abstract

NEW

findingsWhat is the central question of this study? What is the degree to which skeletal muscle mitochondria-derived reactive oxygen species (ROS) production is linked to impaired skeletal muscle function in patients with early-stage peripheral arterial disease (PAD) and what is the impact on mitochondrial respiratory capacity? What is the main finding and its importance? This is the first study to document increased mitochondria-derived reactive oxygen species production associated with elevated intramuscular oxidative stress, despite preserved mitochondrial respiratory function, in patients with PAD. Furthermore, systemic inflammation, mitochondria-derived ROS production and skeletal muscle oxidative stress were strongly correlated to disease severity, as indicated by ankle-brachial index, in patients with PAD. ABSTRACT: Skeletal muscle mitochondrial dysfunction, which is not fully explained by disease-related arterial occlusion, has been implicated in the pathophysiology of peripheral arterial disease (PAD). Therefore, this study comprehensively assessed mitochondrial respiratory function in biopsies from the gastrocnemius of 10 patients with PAD (Fontaine Stage II) and 12 healthy controls (HC). Intramuscular and systemic inflammation, mitochondria-derived reactive oxygen species (ROS) production, and oxidative stress were also assessed to better understand the mechanisms responsible for the proposed PAD-induced mitochondrial dysfunction. Interestingly, mitochondrial respiratory capacity, assessed as complex I (CI) and complex II (CII)-driven State 3 respiration, measured separately and in combination (State 3 CI+II), revealed no difference between the patients with PAD and the HC. However, mitochondria-derived ROS production was significantly elevated in PAD (HC: 1.0 ± 0.9; PAD: 4.3 ± 1.0 AU (mg tissue)

Indexed as

AgedCell RespirationFemaleFree RadicalsHumansHydrogen PeroxideInflammationMaleMiddle AgedMitochondriaMitochondria, MuscleMuscle, SkeletalOxidative StressPeripheral Arterial DiseaseReactive Oxygen SpeciesFree RadicalsHydrogen PeroxideReactive Oxygen Speciesoxidative capacityPADROS

Identifiers

PMID29604234
PMCPMC7640985
OpenAlexW2794565312

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.