Evidence map›Paper›PMID 27630198›Full record

ArticleThe Journal of infectious diseases2016

Nitric Oxide-Dependent Endothelial Dysfunction and Reduced Arginine Bioavailability in Plasmodium vivax Malaria but No Greater Increase in Intravascular Hemolysis in Severe Disease.

Bridget E Barber, Timothy William, Matthew J Grigg, Kim A Piera, Youwei Chen, Hao Wang, J Brice Weinberg, Tsin W Yeo, Nicholas M Anstey

Open access · bronzeAbstract read
In one paragraph

Article in The Journal of infectious diseases, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 18 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
18citing papers in PubMed, 2 pooled it
1.8field-weighted citation impact, top 12% 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, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Trial
  4. Comparable severity ofNew microbes and new infections · 2026
    Article
  5. Article
  6. Reduced Red Blood Cell Deformability in Vivax Malaria.The Journal of infectious diseases · 2025
    Article
  7. Case Report: Severe Plasmodium vivax Malaria after Splenectomy.The American journal of tropical medicine and hygiene · 2023
    Article
  8. Review
  9. Oxidative Stress in Malaria: Potential Benefits of Antioxidant Therapy.International journal of molecular sciences · 2022
    Review
  10. Observational
  11. Article
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Metabolome-wide association study of peripheral parasitemia in Plasmodium vivax malaria.International journal of medical microbiology : IJMM · 2017
    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

9 authors at 3 institutions in 3 countries.

Bridget E BarberGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
Timothy WilliamInfectious Diseases Society Sabah-Menzies School of Health Research Clinical Research Unit.
Matthew J GriggGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
Kim A PieraGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
Youwei ChenDuke University Medical Center.
Hao WangGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
J Brice WeinbergDuke University Medical Center.
Tsin W YeoGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
Nicholas M AnsteyGlobal and Tropical Health Division, Menzies School of Health Research and Charles Darwin University.
Menzies School of Health Research · AUCharles Darwin University · AUDurham Technical Community College · US

Funding

NITRIC OXIDE AND SEVERE MALARIAR01AI041764 · NIAID · DUKE UNIVERSITY · PI WEINBERG, JOE BRICE · 1997 to 2012
$6.3M
Nitric Oxide and Microvascular Dysfunction in Severe MalariaR01HL130763 · NHLBI · DUKE UNIVERSITY · PI ANSTEY, NICHOLAS, GRANGER, DONALD LEE · 2015 to 2018
$1.5M
Comparative incidence and clinical spectrum of Plasmodium knowlesi malaria, a longitudinal study in Sabah, MalaysiaR01AI116472 · NIAID · INFECTIOUS DISEASE SOCIETY KOTA KINABALU · PI WILLIAM, TIMOTHY · 2015 to 2019
$682k
NHLBI NIH HHS R01 HL130763NIAID NIH HHS R01 AI041764NIAID NIH HHS R01 AI116472
6 · The paper itself

Abstract

backgroundPathogenesis of severe Plasmodium vivax malaria is poorly understood. Endothelial dysfunction and reduced nitric oxide (NO) bioavailability characterize severe falciparum malaria, but have not been assessed in severe vivax malaria.

methodsIn patients with severe vivax malaria (n = 9), patients with nonsevere vivax malaria (n = 58), and healthy controls (n = 79), we measured NO-dependent endothelial function by using reactive hyperemia-peripheral arterial tonometry (RH-PAT) and assessed associations with arginine, asymmetric dimethylarginine (ADMA), and hemolysis.

resultsThe L-arginine level and the L-arginine to ADMA ratio (a measure of L-arginine bioavailability) were reduced in patients with severe vivax malaria and those with nonsevere vivax malaria, compared with healthy controls (median L-arginine level, 65, 66, and 98 µmol/mL, respectively [P = .0001]; median L-arginine to ADMA ratio, 115, 125, and 187, respectively [P = .0001]). Endothelial function was impaired in proportion to disease severity (median RH-PAT index, 1.49, 1.73, and 1.97 in patients with severe vivax malaria, those with nonsevere vivax malaria, and healthy controls, respectively; P = .018) and was associated with the L-arginine to ADMA ratio. While the posttreatment fall in hemoglobin level was greater in severe vivax malaria as compared to nonsevere vivax malaria (2.5 vs 1 g/dL; P = .0001), markers of intravascular hemolysis were not higher in severe disease.

conclusionsEndothelial function is impaired in nonsevere and severe vivax malaria, is associated with reduced L-arginine bioavailability, and may contribute to microvascular pathogenesis. Severe disease appears to be more associated with extravascular hemolysis than with intravascular hemolysis.

Indexed as

HemolysisAdolescentAdultAgedArginineBiological AvailabilityEndothelial CellsEpidemiologic StudiesFemaleHumansMalaria, VivaxMaleMiddle AgedNitric OxideProspective StudiesYoung AdultArginineNitric Oxidearginineasymmetric dimethylarginineendothelial functionhemolysismalarianitric oxidePlasmodium vivax

Identifiers

PMID27630198
PMCPMC6937019
OpenAlexW2520176501

What OpenQuestion holds

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Registered trials

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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.