Evidence map›Paper›PMID 32841100›Full record

ArticleVascular medicine (London, England)2020

Skeletal muscle capillary density is related to anaerobic threshold and claudication in peripheral artery disease.

Brian D Duscha, William E Kraus, William S Jones, Jennifer L Robbins, Lucy W Piner, Kim M Huffman, Jason D Allen, Brian H Annex

Open access · bronzeAbstract read
In one paragraph

Article in Vascular medicine (London, England), 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
2.7field-weighted citation impact, top 9% 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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Trial
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  3. Prognostic value of [European journal of nuclear medicine and molecular imaging · 2026
    Article
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  5. Article
  6. New horizons in nuclear cardiology: Imaging of peripheral arterial disease.Journal of nuclear cardiology : official publication of the American Society of Nuclear Cardiology · 2025
    Review
  7. Article
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  11. Article
  12. Review
  13. Peripheral arterial disease: A small and large vessel problem.American heart journal plus : cardiology research and practice · 2023
    Review
  14. Article
  15. Review
  16. Review
  17. Article
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 3 institutions in 1 country.

Brian D DuschaDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.ORCID 0000-0002-3257-6157
William E KrausDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
William S JonesDivision of Cardiology, Duke University School of Medicine, Durham, NC, USA.
Jennifer L RobbinsDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
Lucy W PinerDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
Kim M HuffmanDuke Molecular Physiology Institute, Duke University School of Medicine, Durham, NC, USA.
Jason D AllenDepartment of Kinesiology, Curry School of Education and Human Development, University of Virginia, Charlottesville, VA, USA.
Brian H AnnexDepartment of Medicine, Medical College of Georgia, Augusta, GA, USA.
Duke University · USAugusta University · USUniversity of Virginia · US

Funding

Clinical Phenotyping and Disease Specific Sampling to Identify Non-coding RNAs for Human Therapeutics in PADR01HL150003 · NHLBI · AUGUSTA UNIVERSITY · PI ANNEX, BRIAN H, MCCLUNG, JOSEPH MATTHEW · 2020 to 2023
$3.0M
Precision Medicine for Therapeutic Angiogenesis in Peripheral Arterial Disease: Targeting of the IL21R PathwayR01HL148590 · NHLBI · AUGUSTA UNIVERSITY · PI ANNEX, BRIAN H · 2019 to 2022
$2.9M
The Anti-angiogenic VEGF165b and VEGFR1 Signaling in Peripheral Artery DiseaseR01HL141325 · NHLBI · UNIVERSITY OF VIRGINIA · PI ANNEX, BRIAN H · 2019 to 2022
$2.7M
New Roles for VEGFR1 in AngiogenesisR01GM129074 · NIGMS · JOHNS HOPKINS UNIVERSITY · PI MAC GABHANN, FEILIM C · 2018 to 2021
$2.6M
NHLBI NIH HHS R01 HL141325NHLBI NIH HHS R01 HL148590NHLBI NIH HHS R01 HL150003NIGMS NIH HHS R01 GM129074
6 · The paper itself

Abstract

Peripheral artery disease (PAD) is characterized by impaired blood flow to the lower extremities, causing claudication and exercise intolerance. Exercise intolerance may result from reduced skeletal muscle capillary density and impaired muscle oxygen delivery. This cross-sectional study tested the hypothesis that capillary density is related to claudication times and anaerobic threshold (AT) in patients with PAD. A total of 37 patients with PAD and 29 control subjects performed cardiopulmonary exercise testing on a treadmill for AT and gastrocnemius muscle biopsies. Skeletal muscle capillary density was measured using immunofluorescence staining. PAD had decreased capillary density (278 ± 87 vs 331 ± 86 endothelial cells/mm

Indexed as

Anaerobic ThresholdExercise ToleranceMicrovascular DensityAgedCapillariesCase-Control StudiesCross-Sectional StudiesFemaleHumansIntermittent ClaudicationMaleMiddle AgedMuscle, SkeletalPeripheral Arterial DiseaseRegional Blood Flowanaerobic thresholdangiogenesiscapillary densityexerciseperipheral artery disease (PAD)

Identifiers

PMID32841100
PMCPMC8297535
OpenAlexW3080361313

What OpenQuestion holds

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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.