Evidence map›Paper›PMID 25912054›Full record

ArticleTransfusion2015

Effects of nitric oxide and its congeners on sickle red blood cell deformability.

Andrea M Belanger, Christian Keggi, Tamir Kanias, Mark T Gladwin, Daniel B Kim-Shapiro

Abstract read
In one paragraph

Article in Transfusion, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed
2.9field-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

18 citing papers in PubMed, 36 citations in OpenAlex.

  1. Trial
  2. Article
  3. Article
  4. Article
  5. Review
  6. Article
  7. Article
  8. Article
  9. Article
  10. Review
  11. Nitric oxide pathology and therapeutics in sickle cell disease.Clinical hemorheology and microcirculation · 2018
    Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Review
  17. Article
  18. 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

5 authors at 2 institutions in 1 country.

Andrea M BelangerDepartment of Physics.
Christian KeggiDepartment of Physics.
Tamir KaniasHeart, Lung, Blood and Vascular Medicine Institute.
Mark T GladwinHeart, Lung, Blood and Vascular Medicine Institute.
Daniel B Kim-ShapiroDepartment of Physics.
University of Pittsburgh · USWake Forest University · US

Funding

Storage Lesion in Banked Blood Due to Disruption of Nitric Oxide HomeostasisR01HL098032 · NHLBI · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI Mark T Gladwin · 2009 to 2026
$12.5M
Effects of Nitric Oxide in Sickle Cell BloodR37HL058091 · NHLBI · WAKE FOREST UNIVERSITY · PI KIM-SHAPIRO, DANIEL B · 2007 to 2016
$3.5M
Structural and Computational Biophysics Training ProgramT32GM095440 · NIGMS · WAKE FOREST UNIVERSITY HEALTH SCIENCES · PI HOLLIS, THOMAS J, LYLES, DOUGLAS S. · 2011 to 2020
$1.7M
Effects of Nitric Oxide in Sickle Cell BloodR01HL058091 · NHLBI · WAKE FOREST UNIVERSITY · PI KIM-SHAPIRO, DANIEL B · 2002 to 2006
$1.6M
MECHANISM AND KINETICS OF SICKLE CELL HEMOGLOBINR29HL058091 · NHLBI · WAKE FOREST UNIVERSITY · PI KIM-SHAPIRO, DANIEL B · 1998 to 2002
$260k
NHLBI NIH HHS HL058091NHLBI NIH HHS HL098032NHLBI NIH HHS R01 HL058091NHLBI NIH HHS R01 HL098032NHLBI NIH HHS R29 HL058091NHLBI NIH HHS R37 HL058091NIGMS NIH HHS T32 GM095440
6 · The paper itself

Abstract

backgroundSickle cell disease (SCD) is characterized by hemoglobin polymerization upon deoxygenation. Polymerization causes the sickle cells to become rigid and misshapen (sickling). Red blood cell (RBC) dehydration greatly increases polymerization. Cycles of sickling and unsickling cause an influx of calcium that leads to loss of potassium via the calcium-activated Gardos channel, which dehydrates the cells leading to increased polymerization. In this study the effects of nitric oxide (NO) and its congeners on RBC deformability were examined, focusing on sickle RBCs (sRBCs). STUDY DESIGN AND

methodsRBCs from patients with SCD and from nonpatients were exposed to various compounds that release NO or its congeners. Intracellular calcium was increased using a calcium ionophore or cycling of oxygen tension for sRBCs. Deformability was measured by laser-assisted osmotic gradient ektacytometry.

resultsConsistent with a previous report, sodium nitroprusside (SNP) was found to protect against calcium-induced loss of deformability in normal RBCs, but (contrary to some previous reports) no effect of any NO donors was observed when calcium influx was not induced. Importantly, in studies of deoxygenation-induced dehydration of sRBCs, SNP resulted in substantial improvements in deformability (p = 0.036) and hydration (p = 0.024). Sodium nitrite showed similar trends. SNP was shown to have no effect on calcium influx, but reduced potassium efflux.

conclusionThese data suggest that SNP and perhaps certain nitrogen oxides (like nitrite) inhibit the Gardos channel and may be able to protect sickle cells from dehydration and thereby improve outcome in the disease.

Indexed as

Anemia, Sickle CellCalciumCalcium SignalingErythrocyte DeformabilityErythrocytes, AbnormalFemaleHumansMaleNitric OxideNitroprussidePotassiumCalciumNitric OxideNitroprussidePotassium

Identifiers

PMID25912054
PMCPMC4605849
OpenAlexW2161988331

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.