Evidence map›Paper›PMID 24040299›Full record

ArticlePloS one2013

Opsonising antibodies to P. falciparum merozoites associated with immunity to clinical malaria.

Danika L Hill, Emily M Eriksson, Connie S N Li Wai Suen, Chris Y Chiu, Victoria Ryg-Cornejo, Leanne J Robinson, Peter M Siba, Ivo Mueller, Diana S Hansen, Louis Schofield

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 64 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
64citing papers in PubMed, 1 pooled it
8.8field-weighted citation impact, top 2% 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

64 citing papers in PubMed, 1 synthesis or guideline pooled it, 101 citations in OpenAlex.

  1. Pooled it
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4 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

10 authors at 3 institutions in 3 countries.

Danika L HillWalter and Eliza Hall Institute of Medical Research, Parkville, Victoria, Australia ; Department of Medical Biology, University of Melbourne, Parkville, Victoria, Australia.
Emily M Eriksson
Connie S N Li Wai Suen
Chris Y Chiu
Victoria Ryg-Cornejo
Leanne J Robinson
Peter M Siba
Ivo Mueller
Diana S Hansen
Louis Schofield
Walter and Eliza Hall Institute of Medical Research · AUPapua New Guinea Institute of Medical Research · PGUniversity of Melbourne · AU

Funding

TransmissionU19AI089686 · NIAID · CASE WESTERN RESERVE UNIVERSITY · PI KAZURA, JAMES WALTER · 2010 to 2016
$9.9M
NIAID NIH HHS AI089686NIAID NIH HHS U19 AI089686
6 · The paper itself

Abstract

Naturally acquired humoral immunity to the malarial parasite Plasmodium falciparum can protect against disease, although the precise mechanisms remain unclear. Although antibody levels can be measured by ELISA, few studies have investigated functional antibody assays in relation to clinical outcomes. In this study we applied a recently developed functional assay of antibody-mediated opsonisation of merozoites, to plasma samples from a longitudinal cohort study conducted in a malaria endemic region of Papua New Guinea (PNG). Phagocytic activity was quantified by flow cytometry using a standardized and high-throughput protocol, and was subsequently evaluated for association with protection from clinical malaria and high-density parasitemia. Opsonising antibody responses were found to: i) increase with age, ii) be enhanced by concurrent infection, and iii) correlate with protection from clinical episodes and high-density parasitemia. Stronger protective associations were observed in individuals with no detectable parasitemia at baseline. This study presents the first evidence for merozoite phagocytosis as a correlate of acquired immunity and clinical protection against P. falciparum malaria.

Indexed as

PhagocytosisAdolescentAntibodies, ProtozoanAntigens, ProtozoanCell LineChildChild, PreschoolFollow-Up StudiesHumansImmunity, HumoralLongitudinal StudiesMalaria, FalciparumMonocytesOpsonin ProteinsPapua New GuineaParasitemiaAntibodies, ProtozoanAntigens, ProtozoanOpsonin Proteins

Identifiers

PMID24040299
PMCPMC3767630
OpenAlexW2049204605

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.