Evidence map›Paper›PMID 28249043›Full record

ArticlePloS one2017

Effects of sevuparin on rosette formation and cytoadherence of Plasmodium falciparum infected erythrocytes.

Somporn Saiwaew, Juntima Sritabal, Nattaporn Piaraksa, Srisuda Keayarsa, Ronnatrai Ruengweerayut, Chirapong Utaisin, Patima Sila, Rangsan Niramis, Rachanee Udomsangpetch, Prakaykaew Charunwatthana and 9 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

21 citing papers in PubMed, 41 citations in OpenAlex.

  1. Article
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  9. Plasma Plasmodium falciparum Histidine-rich Protein 2 Concentrations in Children With Malaria Infections of Differing Severity in Kilifi, Kenya.Clinical infectious diseases : an official publication of the Infectious Diseases Society of America · 2021
    Article
  10. Degradation of endothelial glycocalyx in Tanzanian children with falciparum malaria.FASEB journal : official publication of the Federation of American Societies for Experimental Biology · 2021
    Article
  11. Review
  12. Article
  13. Testing the effect of PAR1 inhibitors onWellcome open research · 2020
    Article
  14. Article
  15. Review
  16. Temperature Dependence ofThe American journal of tropical medicine and hygiene · 2019
    Article
  17. Review
  18. 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

19 authors at 6 institutions in 3 countries.

Somporn SaiwaewDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Juntima SritabalDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Nattaporn PiaraksaDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Srisuda KeayarsaDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Ronnatrai RuengweerayutMae Sot Hospital, Mae Sot, Tak, Thailand.
Chirapong UtaisinMae Ramat Hospital, Mae Ramat, Tak, Thailand.
Patima SilaMae Ramat Hospital, Mae Ramat, Tak, Thailand.
Rangsan NiramisQueen Sirikit National Institute of Child Health, Bangkok, Thailand.
Rachanee UdomsangpetchCenter for Research and Innovation, Faculty of Medical Technology, Mahidol University, Nakhon Pathom, Thailand.
Prakaykaew CharunwatthanaDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Emsri PongponratnDepartment of Tropical Pathology, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Sasithon PukrittayakameeDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Anna M LeitgebDilaforette AB, Stockholm, Sweden.
Mats WahlgrenDepartment of Microbiology, Tumor and Cell Biology, Karolinska Institutet, Stockholm, Sweden.
Sue J LeeMahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Nicholas P J DayMahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Nicholas J WhiteMahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Arjen M DondorpMahidol-Oxford Tropical Medicine Research Unit, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Kesinee ChotivanichDepartment of Clinical Tropical Medicine, Faculty of Tropical Medicine, Mahidol University, Bangkok, Thailand.
Mahidol University · THMaesot General Hospital · THMahidol Oxford Tropical Medicine Research Unit · THKarolinska Institutet · SEQueen Sirikit National Institute of Child Health · THUniversity of Oxford · GB

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

In severe falciparum malaria cytoadherence of parasitised red blood cells (PRBCs) to vascular endothelium (causing sequestration) and to uninfected red cells (causing rosette formation) contribute to microcirculatory flow obstruction in vital organs. Heparin can reverse the underlying ligand-receptor interactions, but may increase the bleeding risks. As a heparin-derived polysaccharide, sevuparin has been designed to retain anti-adhesive properties, while the antithrombin-binding domains have been eliminated, substantially diminishing its anticoagulant activity. Sevuparin has been evaluated recently in patients with uncomplicated falciparum malaria, and is currently investigated in a clinical trial for sickle cell disease. The effects of sevuparin on rosette formation and cytoadherence of Plasmodium falciparum isolates from Thailand were investigated. Trophozoite stages of P. falciparum-infected RBCs (Pf-iRBCs) were cultured from 49 patients with malaria. Pf-iRBCs were treated with sevuparin at 37°C and assessed in rosetting and in cytoadhesion assays with human dermal microvascular endothelial cells (HDMECs) under static and flow conditions. The proportion of Pf-iRBCs forming rosettes ranged from 6.5% to 26.0% (median = 12.2%). Rosetting was dose dependently disrupted by sevuparin (50% disruption by 250 μg/mL). Overall 57% of P. falciparum isolates bound to HDMECs under static conditions; median (interquartile range) Pf-iRBC binding was 8.5 (3.0-38.0) Pf-iRBCs/1000 HDMECs. Sevuparin in concentrations ≥ 100 μg/mL inhibited cytoadherence. Sevuparin disrupts P. falciparum rosette formation in a dose dependent manner and inhibits cytoadherence to endothelial cells. The data support assessment of sevuparin as an adjunctive treatment to the standard therapy in severe falciparum malaria.

Indexed as

AdolescentAdultAgedCell AdhesionCells, CulturedEndothelial CellsErythrocytesFemaleHeparinHumansMalaria, FalciparumMaleMiddle AgedPlasmodium falciparumRosette FormationTrophozoitesHeparinsevuparin

Identifiers

PMID28249043
PMCPMC5332063
OpenAlexW2593881223

What OpenQuestion holds

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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.