Evidence map›Paper›PMID 20864561›Full record

ArticleJournal of applied physiology (Bethesda, Md. : 1985)2010

Human aging and CD31+ T-cell number, migration, apoptotic susceptibility, and telomere length.

Erich J Kushner, Brian R Weil, Owen J MacEneaney, Richard G Morgan, Michael L Mestek, Gary P Van Guilder, Kyle J Diehl, Brian L Stauffer, Christopher A DeSouza

Open access · greenAbstract readComparative Study
In one paragraph

Article in Journal of applied physiology (Bethesda, Md. : 1985), 2010. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
0.9field-weighted citation impact, top 25% 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

24 citing papers in PubMed, 29 citations in OpenAlex.

  1. CD31Physiological reports · 2026
    Article
  2. Article
  3. Review
  4. Article
  5. Article
  6. Review
  7. Article
  8. Article
  9. Article
  10. Exercise and Cardiovascular Progenitor Cells.Comprehensive Physiology · 2019
    Review
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Review
  20. 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

9 authors at 2 institutions in 1 country.

Erich J KushnerIntegrative Vascular Biology Laboratory, Department of Integrative Physiology, University of Colorado, Boulder, CO 8030, USA.
Brian R Weil
Owen J MacEneaney
Richard G Morgan
Michael L Mestek
Gary P Van Guilder
Kyle J Diehl
Brian L Stauffer
Christopher A DeSouza
University of Colorado Boulder · USDenver Health Medical Center · US

Funding

ZOPOLRESTAT PHARMACOKINETICS IN DIABETICS WITH VARYING RENAL FUNCTIONM01RR000051 · NCRR · UNIVERSITY OF COLORADO DENVER · PI KOSMISKI, LISA A. · 1985 to 2008
$52.6M
Obesity/Insulin Resistance, Vitamin C and Endothelin-1R01HL076434 · NHLBI · UNIVERSITY OF COLORADO AT BOULDER · PI DESOUZA, CHRISTOPHER A · 2004 to 2008
$1.5M
Aging, Exercise and Endothelin-1 Vasoconstrictor ToneR01HL077450 · NHLBI · UNIVERSITY OF COLORADO AT BOULDER · PI DESOUZA, CHRISTOPHER A · 2004 to 2007
$1.4M
NCRR NIH HHS M01 RR000051NCRR NIH HHS RR-00051NHLBI NIH HHS HL-076434NHLBI NIH HHS HL-077450NHLBI NIH HHS R01 HL076434NHLBI NIH HHS R01 HL077450
6 · The paper itself

Abstract

CD31(+) T cells, or so-called "angiogenic T cells," have been shown to demonstrate vasculoprotective and neovasculogenic qualities. The influence of age on CD31(+) T-cell number and function is unclear. We tested the hypothesis that circulating CD31(+) T-cell number and migratory capacity are reduced, apoptotic susceptibility is heightened, and telomere length is shortened with advancing age in adult humans. Thirty-six healthy, sedentary men were studied: 12 young (25 ± 1 yr), 12 middle aged (46 ± 1 yr), and 12 older (64 ± 2 yr). CD31(+) T cells were isolated from peripheral blood samples by magnetic-activated cell sorting. The number of circulating CD31(+) T cells (fluorescence-activated cell sorting analysis) was lower (P < 0.01) in older (24% of CD3(+) cells) compared with middle-aged (38% of CD3(+) cells) and young (40% of CD3(+) cells) men. Migration (Boyden chamber) to both VEGF and stromal cell-derived factor-1α was markedly blunted (P < 0.05) in cells harvested from middle-aged [306.1 ± 45 and 305.6 ± 46 arbitrary units (AU), respectively] and older (231 ± 65 and 235 ± 62 AU, respectively) compared with young (525 ± 60 and 570 ± 62 AU, respectively) men. CD31(+) T cells from middle-aged and older men demonstrated greater apoptotic susceptibility, as staurosporine-stimulated intracellular caspase-3 activation was ∼ 40% higher (P < 0.05) than young. There was a progressive age-related decline in CD31(+) T-cell telomere length (young: 10,706 ± 220 bp; middle-aged: 10,179 ± 251 bp; and older: 9,324 ± 192 bp). Numerical and functional impairments in this unique T-cell subpopulation may contribute to diminished angiogenic potential and greater cardiovascular risk with advancing age.

Indexed as

ApoptosisChemotaxisAdultAgedAge FactorsAgingCardiovascular DiseasesCaspase 3Cell SeparationChemokine CXCL12Cytochromes cFlow CytometryHumansLymphocyte CountMaleMiddle AgedCASP3 protein, humanCaspase 3Chemokine CXCL12Cytochromes cPlatelet Endothelial Cell Adhesion Molecule-1TelomeraseVascular Endothelial Growth Factor A

Identifiers

PMID20864561
PMCPMC3006402
OpenAlexW2101959467

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.