Evidence map›Paper›PMID 29514999›Full record

ArticleScience translational medicine2018

Malaria in pregnancy alters l-arginine bioavailability and placental vascular development.

Chloe R McDonald, Lindsay S Cahill, Joel L Gamble, Robyn Elphinstone, Lisa M Gazdzinski, Kathleen J Y Zhong, Adrienne C Philson, Mwayiwawo Madanitsa, Linda Kalilani-Phiri, Victor Mwapasa and 4 more

Open access · greenAbstract read
In one paragraph

Article in Science translational medicine, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 31 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
31citing papers in PubMed, 1 pooled it
5.7field-weighted citation impact, top 4% 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

31 citing papers in PubMed, 1 synthesis or guideline pooled it, 51 citations in OpenAlex.

  1. Pooled it
  2. Trial
  3. Review
  4. Article
  5. Article
  6. Article
  7. Article
  8. MaternalBritish journal of biomedical science · 2025
    Article
  9. Article
  10. Investigation into Antioxidant Mechanism ofFoods (Basel, Switzerland) · 2024
    Article
  11. The intersection of hostMicrobiology and molecular biology reviews : MMBR · 2024
    Review
  12. Review
  13. Dietary supplements and vascular function in hypertensive disorders of pregnancy.Pflugers Archiv : European journal of physiology · 2023
    Review
  14. Article
  15. Allometric scaling relationships in mouse placenta.Journal of the Royal Society, Interface · 2022
    Article
  16. Review
  17. Article
  18. Article
  19. Review
  20. 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

14 authors at 5 institutions in 4 countries.

Chloe R McDonaldInstitute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada.ORCID 0000-0002-2820-4991
Lindsay S CahillMouse Imaging Centre, Hospital for Sick Children, Toronto, Ontario M5T 3HT, Canada.
Joel L GambleSandra A. Rotman Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, University of Toronto, Toronto, Ontario M5G 1L7, Canada.ORCID 0000-0002-7327-2141
Robyn ElphinstoneSandra A. Rotman Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, University of Toronto, Toronto, Ontario M5G 1L7, Canada.
Lisa M GazdzinskiMouse Imaging Centre, Hospital for Sick Children, Toronto, Ontario M5T 3HT, Canada.ORCID 0000-0001-5592-4989
Kathleen J Y ZhongSandra A. Rotman Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, University of Toronto, Toronto, Ontario M5G 1L7, Canada.
Adrienne C PhilsonHoward Hughes Medical Institute, Department of Neurobiology, Harvard Medical School, Boston, MA 02138, USA.
Mwayiwawo MadanitsaCollege of Medicine, University of Malawi, P.O. Box 280, Blantyre, Malawi.ORCID 0000-0002-4743-9382
Linda Kalilani-PhiriCollege of Medicine, University of Malawi, P.O. Box 280, Blantyre, Malawi.
Victor MwapasaCollege of Medicine, University of Malawi, P.O. Box 280, Blantyre, Malawi.
Feiko O Ter KuileLiverpool School of Tropical Medicine, Liverpool L35QA, UK.ORCID 0000-0003-3663-5617
John G SledMouse Imaging Centre, Hospital for Sick Children, Toronto, Ontario M5T 3HT, Canada.ORCID 0000-0002-4461-283X
Andrea L ConroySandra A. Rotman Laboratories, Sandra Rotman Centre for Global Health, University Health Network-Toronto General Hospital, University of Toronto, Toronto, Ontario M5G 1L7, Canada.ORCID 0000-0002-5328-6511
Kevin C KainInstitute of Medical Science, University of Toronto, Toronto, Ontario M5S 1A8, Canada. kevin.kain@uhn.ca.ORCID 0000-0001-6068-1272
University Health Network · CAUniversity of Malawi · MWUniversity of Toronto · CAHoward Hughes Medical Institute · USLiverpool School of Tropical Medicine · GB

Funding

CIHR FDN-148139
6 · The paper itself

Abstract

Reducing adverse birth outcomes due to malaria in pregnancy (MIP) is a global health priority. However, there are few safe and effective interventions. l-Arginine is an essential amino acid in pregnancy and an immediate precursor in the biosynthesis of nitric oxide (NO), but there are limited data on the impact of MIP on NO biogenesis. We hypothesized that hypoarginemia contributes to the pathophysiology of MIP and that l-arginine supplementation would improve birth outcomes. In a prospective study of pregnant Malawian women, we show that MIP was associated with lower concentrations of l-arginine and higher concentrations of endogenous inhibitors of NO biosynthesis, asymmetric and symmetric dimethylarginine, which were associated with adverse birth outcomes. In a model of experimental MIP, l-arginine supplementation in dams improved birth outcomes (decreased stillbirth and increased birth weight) compared with controls. The mechanism of action was via normalized angiogenic pathways and enhanced placental vascular development, as visualized by placental microcomputerized tomography imaging. These data define a role for dysregulation of NO biosynthetic pathways in the pathogenesis of MIP and support the evaluation of interventions to enhance l-arginine bioavailability as strategies to improve birth outcomes.

Indexed as

AnimalsArginineFemaleHumansMalariaMiceNitric OxidePlacentaPregnancyPregnancy OutcomeProspective StudiesArginineNitric OxideN,N-dimethylargininesymmetric dimethylarginine

Identifiers

PMID29514999
PMCPMC6510298
OpenAlexW2792175346

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.