Evidence map›Paper›PMID 32357882›Full record

ArticleMalaria journal2020

Measuring antibody avidity to Plasmodium falciparum merozoite antigens using a multiplex immunoassay approach.

Diane Wallace Taylor, Naveen Bobbili, Alex Kayatani, Samuel Tassi Yunga, Winifrida Kidima, Rose F G Leke

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

10 citing papers in PubMed, 12 citations in OpenAlex.

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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

6 authors at 2 institutions in 2 countries.

Diane Wallace TaylorDepartment of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School of Medicine, University of Hawaii, 561 Ilalo Street, Honolulu, HI, 96813, USA. dwtaylor@hawaii.edu.ORCID http://orcid.org/0000-0002-0988-4290
Naveen BobbiliDepartment of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School of Medicine, University of Hawaii, 561 Ilalo Street, Honolulu, HI, 96813, USA.
Alex KayataniDepartment of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School of Medicine, University of Hawaii, 561 Ilalo Street, Honolulu, HI, 96813, USA.
Samuel Tassi YungaDepartment of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School of Medicine, University of Hawaii, 561 Ilalo Street, Honolulu, HI, 96813, USA.
Winifrida KidimaDepartment of Tropical Medicine, Medical Microbiology, and Pharmacology, John A. Burns School of Medicine, University of Hawaii, 561 Ilalo Street, Honolulu, HI, 96813, USA.
Rose F G LekeFaculty of Medicine and Biomedical Sciences, The Biotechnology Center, University of Yaoundé 1, Yaoundé, Cameroon.
University of Hawaiʻi at Mānoa · USUniversité de Yaoundé I · CM

Funding

TH2 BIAS EFFECT ON MALARIAL IMMUNITY IN CAMEROONU01AI043888 · NIAID · GEORGETOWN UNIVERSITY · PI TAYLOR, DIANE WALLACE · 1998 to 2002
$2.7M
Training of Cameroonian Scientists in Research on MalariaD43TW009074 · FIC · UNIVERSITY OF HAWAII AT MANOA · PI NERURKAR, VIVEK RAMCHANDRA · 2011 to 2015
$978k
Defining Immunity to Placental Malaria using a Multi-assay Predictive ModelR21AI105286 · NIAID · UNIVERSITY OF HAWAII AT MANOA · PI CHEN, JOHN J, TAYLOR, DIANE WALLACE · 2014 to 2015
$418k
FIC NIH HHS D43 TW009074FIC NIH HHS D43TW009074National Institute of Allergy and Infectious Diseases, NIH UOI AI43888NIAID NIH HHS R21 AI105286NIAID NIH HHS U01 AI043888Wellcome Trust
6 · The paper itself

Abstract

backgroundAntibodies (Ab) play a significant role in immunity to Plasmodium falciparum malaria. Usually, following repeated exposure to pathogens, affinity maturation and clonal selection take place, resulting in increased antibody avidity. However, some studies suggest affinity maturation may not occur to malaria antigens in endemic areas. Information on development of antibody avidity is confusing and conflicting, in part, because different techniques have been used to measure avidity. Today, bead-based multiplex immunoassays (MIA) are routinely used to simultaneously quantitate antibody levels to multiple antigens. This study evaluated the feasibility of developing an avidity MIA with 5 merozoite antigens (AMA1, EBA-175, MSP1-42, MSP2, MSP3) that uses a single chaotropic concentration.

methodsThe most common ELISA protocols that used the chaotropic reagents guanidine HCl (GdHCl), urea, and ammonium thiocyanate (NH

resultsOverall, 4 M GdHCl and 8 M urea were weaker chaotropes than 3 M NH

conclusionsAn avidity MIA is feasible for the 5 merozoite antigens that uses a single concentration (2 M) of NH

Indexed as

AdolescentAdultAntibodies, ProtozoanAntibody AffinityAntigens, ProtozoanEnzyme-Linked Immunosorbent AssayFemaleHumansImmunoassayInfantMalaria, FalciparumMaleMerozoitesMiddle AgedPlasmodium falciparumYoung AdultAntibodies, ProtozoanAntigens, ProtozoanAntibodiesAntibody avidityMalariaMethods studyMultiplex immunoassayPlasmodium falciparum

Identifiers

PMID32357882
PMCPMC7195780
OpenAlexW3022517672

What OpenQuestion holds

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LicenceCC BY
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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.