Evidence map›Paper›PMID 19644138›Full record

ArticleHaematologica2009

Red blood cell aggregation, aggregate strength and oxygen transport potential of blood are abnormal in both homozygous sickle cell anemia and sickle-hemoglobin C disease.

Julien Tripette, Tamas Alexy, Marie-Dominique Hardy-Dessources, Daniele Mougenel, Eric Beltan, Tawfik Chalabi, Roger Chout, Maryse Etienne-Julan, Olivier Hue, Herbert J Meiselman and 1 more

Open access · goldAbstract read
In one paragraph

Article in Haematologica, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 67 papers.

0numbers the graph read from it
0cells of the map it votes in
67citing papers in PubMed
3.2field-weighted citation impact, top 8% 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

67 citing papers in PubMed, 163 citations in OpenAlex.

  1. Trial
  2. Trial
  3. Trial
  4. Trial
  5. Trial
  6. Trial
  7. Trial
  8. Article
  9. Article
  10. Article
  11. Article
  12. Article
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Article

7 more citing papers are in PubMed but not listed here.

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

11 authors at 3 institutions in 2 countries.

Julien TripetteLaboratoire ACTES, EA 3596, Département de Physiologie, Université des Antilles et de la Guyane, Campus de Fouillole, Pointe-à-Pitre, Guadeloupe, French West Indies.
Tamas Alexy
Marie-Dominique Hardy-Dessources
Daniele Mougenel
Eric Beltan
Tawfik Chalabi
Roger Chout
Maryse Etienne-Julan
Olivier Hue
Herbert J Meiselman
Philippe Connes
Centre Hospitalier Universitaire Pointe-à-Pitre · GPSouthern California University for Professional Studies · USUniversité des Antilles · GP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent evidence suggests that red blood cell aggregation and the ratio of hematocrit to blood viscosity (HVR), an index of the oxygen transport potential of blood, might considerably modulate blood flow dynamics in the microcirculation. It thus seems likely that these factors could play a role in sickle cell disease. DESIGN AND

methodsWe compared red blood cell aggregation characteristics, blood viscosity and HVR at different shear rates between sickle cell anemia and sickle cell hemoglobin C disease (SCC) patients, sickle cell trait carriers (AS) and control individuals (AA).

resultsBlood viscosity determined at high shear rate was lower in sickle cell anemia (n=21) than in AA (n=52), AS (n=33) or SCC (n=21), and was markedly increased in both SCC and AS. Despite differences in blood viscosity, both sickle cell anemia and SCC had similar low HVR values compared to both AA and AS. Sickle cell anemia (n=21) and SCC (n=19) subjects had a lower red blood cell aggregation index and longer time for red blood cell aggregates formation than AA (n=16) and AS (n=15), and a 2 to 3 fold greater shear rate required to disperse red blood cell aggregates.

conclusionsThe low HVR levels found in sickle cell anemia and SCC indicates a comparable low oxygen transport potential of blood in both genotypes. Red blood cell aggregation properties are likely to be involved in the pathophysiology of sickle cell disease: the increased shear forces needed to disperse red blood cell aggregates may disturb blood flow, especially at the microcirculatory level, since red blood cell are only able to pass through narrow capillaries as single cells rather than as aggregates.

Indexed as

Erythrocyte AggregationAnemia, Sickle CellBiological TransportBlood ViscosityErythrocyte DeformabilityErythrocytesFibrinogenHematocritHemoglobin CHemoglobin C DiseaseHemoglobin, SickleHemorheologyHomozygoteHumansOxygenFibrinogenHemoglobin CHemoglobin, SickleOxygen

Identifiers

PMID19644138
PMCPMC2719028
OpenAlexW2104773315

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.