Evidence map›Paper›PMID 33025653›Full record

ArticleMicrocirculation (New York, N.Y. : 1994)2021

Standardized microfluidic assessment of red blood cell-mediated microcapillary occlusion: Association with clinical phenotype and hydroxyurea responsiveness in sickle cell disease.

Yuncheng Man, Erdem Kucukal, Ran An, Allison Bode, Jane A Little, Umut A Gurkan

Open access · greenAbstract read
In one paragraph

Article in Microcirculation (New York, N.Y. : 1994), 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed, 1 pooled it
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

20 citing papers in PubMed, 1 synthesis or guideline pooled it, 30 citations in OpenAlex.

  1. Pooled it
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  12. Microfluidic methods to advance mechanistic understanding and translational research in sickle cell disease.Translational research : the journal of laboratory and clinical medicine · 2022
    Review
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  15. Review
  16. Article
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  18. Article
  19. Genetic therapies for the first molecular disease.The Journal of clinical investigation · 2021
    Review
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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

6 authors at 2 institutions in 1 country.

Yuncheng ManDepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA.ORCID 0000-0002-3034-5523
Erdem KucukalDepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA.
Ran AnDepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA.
Allison BodeDepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA.
Jane A LittleDivision of Hematology and Oncology, Department of Medicine, UNC Blood Research Center, University of North Carolina at Chapel Hill, Chapel Hill, NC, USA.
Umut A GurkanDepartment of Mechanical and Aerospace Engineering, Case Western Reserve University, Cleveland, OH, USA.ORCID 0000-0002-0331-9960
Case Western Reserve University · USUniversity of North Carolina at Chapel Hill · US

Funding

Targeted Anticoagulant Therapy for Sickle Cell DiseaseU01HL117659 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KEY, NIGEL S., MACKMAN, NIGEL · 2013 to 2017
$7.6M
Mechanism of sickle cell disease-specific venous thromboembolismR01HL157441 · NHLBI · UNIV OF NORTH CAROLINA CHAPEL HILL · PI KEY, NIGEL S., PAWLINSKI, RAFAL L · 2021 to 2024
$2.6M
Standardized Monitoring of Cellular Adhesion to Improve Clinical Care in Sickle Cell DiseaseR01HL133574 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI GURKAN, UMUT A., LITTLE, JANE · 2016 to 2020
$2.0M
CWRU- Cardiovascular Research Training ProgramT32HL134622 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI JAIN, MUKESH KUMAR, PROWELLER, AARON · 2017 to 2021
$1.9M
Clinical Microfluidic Assessment of Red Blood Cell Adhesion, Deformability, Cellular Hemoglobin Distribution, Cellular Density, and Blood Rheology for Curative Therapies in Sickle Cell DiseaseOT2HL152643 · NHLBI · CASE WESTERN RESERVE UNIVERSITY · PI GURKAN, UMUT A. · 2019 to 2021
$1.9M
NHLBI NIH HHS OT2 HL152643NHLBI NIH HHS R01 HL133574NHLBI NIH HHS R01 HL157441NHLBI NIH HHS T32 HL134622NHLBI NIH HHS U01 HL117659
6 · The paper itself

Abstract

objectivesWe present a standardized in vitro microfluidic assay and Occlusion Index (OI) for the assessment of red blood cell (RBC)-mediated microcapillary occlusion and its clinical associations in sickle cell disease (SCD).

methodsRed blood cell mediated microcapillary occlusion represented by OI and its clinical associations were assessed for seven subjects with hemoglobin-SC disease (HbSC), 18 subjects with homozygous SCD (HbSS), and five control individuals (HbAA).

resultsWe identified two sub-populations with HbSS based on the OI distribution. HbSS subjects with relatively higher OIs had significantly lower hemoglobin levels, lower fetal hemoglobin (HbF) levels, and lower mean corpuscular volume (MCV), but significantly higher serum lactate dehydrogenase levels and absolute reticulocyte counts, compared to subjects with HbSS and lower OIs. HbSS subjects who had relatively higher OIs were more likely to have had a concomitant diagnosis of intrapulmonary shunting (IPS). Further, lower OI associated with hydroxyurea (HU) responsiveness in subjects with HbSS, as evidenced by significantly elevated HbF levels and MCV.

conclusionsWe demonstrated that RBC-mediated microcapillary occlusion and OI associated with subject clinical phenotype and HU responsiveness in SCD. The presented standardized microfluidic assay may be useful for evaluating clinical phenotype and assessing therapeutic outcomes in SCD, including emerging targeted and curative treatments that aim to improve RBC deformability and microcirculatory health.

Indexed as

Anemia, Sickle CellHydroxyureaErythrocytesHemoglobinsHumansMicrocirculationMicrofluidicsPhenotypeHemoglobinsHydroxyureaErythrocytesmicrocirculationmicrofluidicsmicrovascular occlusionsickle cell disease

Identifiers

PMID33025653
PMCPMC7920910
OpenAlexW3092173794

What OpenQuestion holds

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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.