Evidence map›Paper›PMID 23311696›Full record

ArticleAntioxidants & redox signaling2013

Effects of erythrocyte aging on nitric oxide and nitrite metabolism.

Benjamin Y Owusu, Ryan Stapley, Jaideep Honavar, Rakesh P Patel

Abstract read
In one paragraph

Article in Antioxidants & redox signaling, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
1.4field-weighted citation impact, top 18% 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

16 citing papers in PubMed, 25 citations in OpenAlex.

  1. Influence of Atherosclerotic Risk Factors on the Effectiveness of Therapeutic Ultrasound Cavitation for Flow Augmentation.Journal of the American Society of Echocardiography : official publication of the American Society of Echocardiography · 2024
    Article
  2. Peroxiredoxin-2 recycling is slower in denser and pediatric sickle cell red cells.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2022
    Article
  3. Article
  4. Review
  5. Article
  6. An Overview of NO Signaling Pathways in Aging.Molecules (Basel, Switzerland) · 2021
    Review
  7. Article
  8. Red blood cell storage lesion: causes and potential clinical consequences.Blood transfusion = Trasfusione del sangue · 2019
    Review
  9. Review
  10. Article
  11. Review
  12. Article
  13. Article
  14. 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

4 authors at 1 institution in 1 country.

Benjamin Y OwusuDepartment of Pathology and Center for Free Radical Biology, University of Alabama at Birmingham , Birmingham, Alabama.
Ryan Stapley
Jaideep Honavar
Rakesh P Patel
University of Alabama at Birmingham · US

Funding

Training Program in Cardiovascular PathophysiologyT32HL007918 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BALLINGER, SCOTT W. · 1999 to 2018
$3.6M
RBC age and potentiation of transfusion related pathology in trauma patientsR01HL095468 · NHLBI · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BARNUM, SCOTT R, PATEL, RAKESH P. · 2009 to 2012
$1.5M
NHLBI NIH HHS HL095468NHLBI NIH HHS R01 HL095468NHLBI NIH HHS T32 HL007918
6 · The paper itself

Abstract

aimsRecent studies have suggested that in addition to oxygen transport, red blood cells (RBC) are key regulators of vascular function by both inhibiting and promoting nitric oxide (NO)-mediated vasodilation. Most studies assume that RBC are homogenous, but, in fact, they comprise cells of differing morphology and biochemical composition which are dependent on their age, parameters that control NO reactions. We tested the hypothesis that distinct RBC populations will have differential effects on NO signaling.

resultsYoung and old RBC were separated by density gradient centrifugation. Consistent with previous reports, old RBC had decreased levels of surface N-acetyl neuraminic acid and increased oxygen binding affinities. Competition kinetic experiments showed that older RBCs scavenged NO∼2-fold faster compared with younger RBC, which translated to a more potent inhibition of both acetylcholine and NO-donor dependent vasodilation of isolated aortic rings. Moreover, nitrite oxidation kinetics was faster with older RBC compared with younger RBC; whereas no differences in nitrite-reduction kinetics were observed. This translated to increased inhibitory effect of older RBC to nitrite-dependent vasodilation under oxygenated and deoxygenated conditions. Finally, leukodepleted RBC storage also resulted in more dense RBC, which may contribute to the greater NO-inhibitory potential of stored RBC. INNOVATION: These results suggest that a key element in vascular NO-homeostasis mechanisms is the distribution of RBC ages across the physiological spectrum (0-120 days) and suggest a novel mechanism for inhibited NO bioavailability in diseases which are characterized by a shift to an older RBC phenotype.

conclusionOlder RBC inhibit NO bioavailability by increasing NO- and nitrite scavenging.

Indexed as

AnimalsAorta, ThoracicErythrocyte AgingErythrocytesHumansIn Vitro TechniquesMaleNitric OxideNitritesOxidation-ReductionPreservation, BiologicalRatsSignal TransductionVasodilationNitric OxideNitrites

Identifiers

PMID23311696
PMCPMC3785809
OpenAlexW2120403454

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.