Evidence map›Paper›PMID 19733578›Full record

ArticleMicrovascular research2009

Aging decreases expression and activity of glutathione peroxidase-1 in human endothelial progenitor cells.

Tongrong He, Michael J Joyner, Zvonimir S Katusic

Open access · greenAbstract readComparative Study
In one paragraph

Article in Microvascular research, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed
2.6field-weighted citation impact, top 11% 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

31 citing papers in PubMed, 68 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Article
  5. Article
  6. Article
  7. Review
  8. Article
  9. Review
  10. Vascular Ageing and Aerobic Exercise.International journal of environmental research and public health · 2021
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Review
  16. Article
  17. Review
  18. Endogenous Stem Cells in Homeostasis and Aging.Tissue engineering and regenerative medicine · 2017
    Article
  19. Role of prostacyclin signaling in endothelial production of soluble amyloid precursor protein-α in cerebral microvessels.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2017
    Article
  20. Oxidative stress response and Nrf2 signaling in aging.Free radical biology & medicine · 2015
    Review
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 at 1 institution in 1 country.

Tongrong HeDepartment of Anesthesiology and Molecular Pharmacology and Experimental Therapeutics, Mayo Clinic College of Medicine, Rochester, MN 55905, USA. he.tongrong@mayo.edu
Michael J Joyner
Zvonimir S Katusic
Mayo Clinic · US

Funding

PERFUSION OF ACTIVE MUSCLES--METABOLITES AND NERVESR01HL046493 · NHLBI · MAYO CLINIC ROCHESTER · PI JOYNER, MICHAEL J · 1997 to 2011
$3.7M
Neurovascular Control and Blood Pressure Regulation in HumansR01HL083947 · NHLBI · MAYO CLINIC ROCHESTER · PI JOYNER, MICHAEL J · 2007 to 2016
$3.6M
TETRAHYDROBIOPTERIN--REGULATOR OF ENDOTHELIAL FUNCTIONR01HL053524 · NHLBI · MAYO CLINIC ROCHESTER · PI KATUSIC, ZVONIMIR S · 1995 to 2009
$2.3M
Mechanisms of endothelial repair after vascular injuryR01HL091867 · NHLBI · MAYO CLINIC ROCHESTER · PI KATUSIC, ZVONIMIR S · 2009 to 2012
$1.5M
PERFUSION OF ACTIVE MUSCLES: METABOLITES AND NERVESR29HL046493 · NHLBI · MAYO CLINIC COLL OF MEDICINE, ROCHESTER · PI JOYNER, MICHAEL J · 1992 to 1996
–
NCRR NIH HHS RR 25150NHLBI NIH HHS HL-46493NHLBI NIH HHS HL-53524NHLBI NIH HHS HL-83947NHLBI NIH HHS HL-91867NHLBI NIH HHS R01 HL046493NHLBI NIH HHS R01 HL053524NHLBI NIH HHS R01 HL083947NHLBI NIH HHS R01 HL091867
6 · The paper itself

Abstract

The mechanisms underlying effects of aging on functions of pro-angiogenic endothelial progenitor cells (EPCs) are poorly understood. Previous studies demonstrated that human EPCs express high levels of antioxidant enzymes as compared to mature endothelial cells. Here, we hypothesized that aging impairs antioxidant capacity of EPCs. So called "early EPCs" derived from cultured blood mononuclear cells were obtained from healthy young (average=24 years old) and old (average=72 years old) subjects. In EPCs of old subjects, the levels of glutathione peroxidase-1 (GPX1) protein and enzymatic activity were significantly reduced. The serum selenium levels in young and old subjects were not significantly different. Increasing selenium concentration in the cell culture also did not affect the protein levels of GPX1, suggesting the reduced GPX1 in old subject's EPCs is selenium independent. Expressions of catalase, Mn-superoxide dismutase (MnSOD), and CuZnSOD were not affected by aging. EPCs of old subjects were more sensitive to oxidative stress induced by H(2)O(2) as compared with EPCs of young subjects, suggesting that impairment of GPX1 during aging may contribute to low survival ability of EPCs in response to oxidative stress. The results indicate that GPX1 may represent a potential therapeutic target for enhancement of regenerative capacity of EPCs in old subjects.

Indexed as

AdolescentAgedAged, 80 and overAgingApoptosisBlotting, WesternCells, CulturedCell SurvivalEndothelial CellsGlutathione PeroxidaseGlutathione Peroxidase GPX1HumansHydrogen PeroxideLeukocytes, MononuclearMaleOxidative StressGlutathione PeroxidaseGlutathione Peroxidase GPX1GPX1 protein, humanHydrogen PeroxideOxidoreductasesSelenium Compounds

Identifiers

PMID19733578
PMCPMC2783485
OpenAlexW2025464183

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.