Evidence map›Paper›PMID 33436749›Full record

ArticleScientific reports2021

Microfluidic capillary networks are more sensitive than ektacytometry to the decline of red blood cell deformability induced by storage.

Nathaniel Z Piety, Julianne Stutz, Nida Yilmaz, Hui Xia, Tatsuro Yoshida, Sergey S Shevkoplyas

Open access · goldAbstract readComparative Study
In one paragraph

Article in Scientific reports, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 19 papers.

0numbers the graph read from it
0cells of the map it votes in
19citing papers in PubMed
2.6field-weighted citation impact, top 10% 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

19 citing papers in PubMed, 28 citations in OpenAlex.

  1. Review
  2. Article
  3. Article
  4. Review
  5. Article
  6. Big Data in Transfusion Medicine and Artificial Intelligence Analysis for Red Blood Cell Quality Control.Transfusion medicine and hemotherapy : offizielles Organ der Deutschen Gesellschaft fur Transfusionsmedizin und Immunhamatologie · 2023
    Review
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Review
  17. Deformability of Stored Red Blood Cells.Frontiers in physiology · 2021
    Review
  18. Article
  19. Effects of Coincubation With Crystalloids or Medications on Canine Packed Red Blood Cells: An In Vitro Evaluation.Journal of veterinary emergency and critical care (San Antonio, Tex. : 2001)
    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

6 authors at 3 institutions in 1 country.

Nathaniel Z PietyDepartment of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Houston, TX, 77204-5060, USA.
Julianne StutzDepartment of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Houston, TX, 77204-5060, USA.
Nida YilmazDepartment of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Houston, TX, 77204-5060, USA.
Hui XiaDepartment of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Houston, TX, 77204-5060, USA.
Tatsuro YoshidaHemanext, Lexington, MA, USA.
Sergey S ShevkoplyasDepartment of Biomedical Engineering, University of Houston, 3605 Cullen Blvd, Houston, TX, 77204-5060, USA. sshevkoplyas@uh.edu.
University of Houston · USHemanext (United States) · USVanderbilt University · US

Funding

Eliminating Mediators of Toxicity from Stored BloodR01HL117329 · NHLBI · UNIVERSITY OF HOUSTON · PI SHEVKOPLYAS, SERGEY S · 2012 to 2017
$1.9M
NHLBI NIH HHS HHSN268201300045CNHLBI NIH HHS R01HL117329
6 · The paper itself

Abstract

Ektacytometry has been the primary method for evaluating deformability of red blood cells (RBCs) in both research and clinical settings. This study was designed to test the hypothesis that the flow of RBCs through a network of microfluidic capillaries could provide a more sensitive assessment of the progressive impairment of RBC deformability during hypothermic storage than ektacytometry. RBC units (n = 9) were split in half, with one half stored under standard (normoxic) conditions and the other half stored hypoxically, for up to 6 weeks. RBC deformability was measured weekly using two microfluidic devices, an artificial microvascular network (AMVN) and a multiplexed microcapillary network (MMCN), and two commercially available ektacytometers (RheoScan-D and LORRCA). By week 6, the elongation indexes measured with RheoScan-D and LORRCA decreased by 5.8-7.1% (5.4-6.9% for hypoxic storage). Over the same storage duration, the AMVN perfusion rate declined by 27.5% (24.5% for hypoxic) and the MMCN perfusion rate declined by 49.0% (42.4% for hypoxic). Unlike ektacytometry, both AMVN and MMCN measurements showed statistically significant differences between the two conditions after 1 week of storage. RBC morphology deteriorated continuously with the fraction of irreversibly-damaged (spherical) cells increasing significantly faster for normoxic than for hypoxic storage. Consequently, the number of MMCN capillary plugging events and the time MMCN capillaries spent plugged was consistently lower for hypoxic than for normoxic storage. These data suggest that capillary networks are significantly more sensitive to both the overall storage-induced decline of RBC deformability, and to the differences between the two storage conditions, than ektacytometry.

Indexed as

Blood ViscosityErythrocyte DeformabilityBlood PreservationCytological TechniquesErythrocytesHumansMicrofluidicsOsmolar Concentration

Identifiers

PMID33436749
PMCPMC7804960
OpenAlexW3118978303

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.