Evidence map›Paper›PMID 28590246›Full record

ArticleeLife2017

Evidence from a natural experiment that malaria parasitemia is pathogenic in retinopathy-negative cerebral malaria.

Dylan S Small, Terrie E Taylor, Douglas G Postels, Nicholas Av Beare, Jing Cheng, Ian Jc MacCormick, Karl B Seydel

Open access · goldAbstract read
In one paragraph

Article in eLife, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
3.5field-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

17 citing papers in PubMed, 23 citations in OpenAlex.

  1. Article
  2. Article
  3. Article
  4. Review
  5. Using Malarial Retinopathy to Improve the Diagnosis of Pediatric Cerebral Malaria.The American journal of tropical medicine and hygiene · 2023
    Article
  6. Article
  7. Pediatric Cerebral Malaria.Current tropical medicine reports · 2021
    Article
  8. Article
  9. Article
  10. Central Nervous System Virus Infection in African Children with Cerebral Malaria.The American journal of tropical medicine and hygiene · 2020
    Article
  11. Article
  12. Article
  13. Desperately Seeking Therapies for Cerebral Malaria.Journal of immunology (Baltimore, Md. : 1950) · 2020
    Review
  14. MRI demonstrates glutamine antagonist-mediated reversal of cerebral malaria pathology in mice.Proceedings of the National Academy of Sciences of the United States of America · 2018
    Article
  15. Review
  16. Review
  17. 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

7 authors at 5 institutions in 3 countries.

Dylan S SmallDepartment of Statistics, The Wharton School, University of Pennsylvania, Philadelphia, United States.ORCID 0000-0003-4928-2646
Terrie E TaylorDepartment of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, United States.
Douglas G PostelsDepartment of Neurology and Ophthalmology, College of Osteopathic Medicine, Michigan State University, East Lansing, United States.
Nicholas Av BeareDepartment of Eye and Vision Science, University of Liverpool, Liverpool, United Kingdom.
Jing ChengDepartment of Preventive and Restorative Dental Sciences, University of California, San Francisco, San Francisco, United States.
Ian Jc MacCormickDepartment of Eye and Vision Science, University of Liverpool, Liverpool, United Kingdom.
Karl B SeydelDepartment of Osteopathic Medical Specialties, College of Osteopathic Medicine, Michigan State University, East Lansing, United States.
Blantyre Institute for Community Ophthalmology · MWUniversity of Liverpool · GBMichigan State University · USUniversity of California, San Francisco · USUniversity of Pennsylvania · US

Funding

Medical Research Council G0600230Medical Research Council G0600718Medical Research Council MR/M006212/1Wellcome Trust
6 · The paper itself

Abstract

Cerebral malaria (CM) can be classified as retinopathy-positive or retinopathy-negative, based on the presence or absence of characteristic retinal features. While malaria parasites are considered central to the pathogenesis of retinopathy-positive CM, their contribution to retinopathy-negative CM is largely unknown. One theory is that malaria parasites are innocent bystanders in retinopathy-negative CM and the etiology of the coma is entirely non-malarial. Because hospitals in malaria-endemic areas often lack diagnostic facilities to identify non-malarial causes of coma, it has not been possible to evaluate the contribution of malaria infection to retinopathy-negative CM. To overcome this barrier, we studied a natural experiment involving genetically inherited traits, and find evidence that malaria parasitemia does contribute to the pathogenesis of retinopathy-negative CM. A lower bound for the fraction of retinopathy-negative CM that would be prevented if malaria parasitemia were to be eliminated is estimated to be 0.93 (95% confidence interval: 0.68, 1).

Indexed as

ChildChild, PreschoolFemaleHumansInfantMalaria, CerebralMalawiMaleParasitemiacerebral malariaepidemiologyglobal healthmalarial retinopathynatural experimentpathogenesisP. falciparum

Identifiers

PMID28590246
PMCPMC5462542
OpenAlexW2621471645

What OpenQuestion holds

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LicenceCC BY
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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.