Evidence map›Paper›PMID 22252876›Full record

ArticleInfection and immunity2012

Plasmodium falciparum malaria in the Peruvian Amazon, a region of low transmission, is associated with immunologic memory.

Eva H Clark, Claudia J Silva, Greta E Weiss, Shanping Li, Carlos Padilla, Peter D Crompton, Jean N Hernandez, OraLee H Branch

Open access · greenAbstract read
In one paragraph

Article in Infection and immunity, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 35 papers.

0numbers the graph read from it
0cells of the map it votes in
35citing papers in PubMed
6.6field-weighted citation impact, top 3% 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

35 citing papers in PubMed, 62 citations in OpenAlex.

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  7. PvMSP8 as a NovelPathogens (Basel, Switzerland) · 2021
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  13. Development of B Cell Memory in Malaria.Frontiers in immunology · 2019
    Review
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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

8 authors at 6 institutions in 2 countries.

Eva H ClarkDepartment of Microbiology, The University of Alabama at Birmingham, Birmingham, Alabama, USA.
Claudia J Silva
Greta E Weiss
Shanping Li
Carlos Padilla
Peter D Crompton
Jean N Hernandez
OraLee H Branch
National Institute of Allergy and Infectious Diseases · USUniversidad Nacional de la Amazonía Peruana · PEInstituto Nacional de Salud · PENational Institutes of Health · USNew York University · USUniversity of Alabama at Birmingham · US

Funding

Mechanisms of naturally-acquired immunity to malaria and clinical trials of anti-malaria monoclonal antibodiesZIAAI001155 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI CROMPTON, PETER · 2011 to 2025
$30.9M
Malaria: Immunity and Diversity in Low TransmissionR01AI064831 · NIAID · UNIVERSITY OF ALABAMA AT BIRMINGHAM · PI BRANCH, ORALEE H · 2006 to 2010
$2.3M
NIAID NIH HHS R01 AI064831
6 · The paper itself

Abstract

The development of clinical immunity to Plasmodium falciparum malaria is thought to require years of parasite exposure, a delay often attributed to difficulties in developing protective antibody levels. In this study, we evaluated several P. falciparum vaccine candidate antigens, including apical membrane antigen 1 (AMA-1), circumsporozoite protein (CSP), erythrocyte binding antigen 175 (EBA-175), and the 19-kDa region of merozoite surface protein 1 (MSP1(19)). After observing a more robust antibody response to MSP1(19), we evaluated the magnitude and longevity of IgG responses specific to this antigen in Peruvian adults and children before, during, and after P. falciparum infection. In this low-transmission region, even one reported prior infection was sufficient to produce a positive anti-MSP1(19) IgG response for >5 months in the absence of reinfection. We also observed an expansion of the total plasmablast (CD19(+) CD27(+) CD38(high)) population in the majority of individuals shortly after infection and detected MSP1-specific memory B cells in a subset of individuals at various postinfection time points. This evidence supports our hypothesis that effective antimalaria humoral immunity can develop in low-transmission regions.

Indexed as

Immunologic MemoryAdolescentADP-ribosyl Cyclase 1AdultAntibodies, ProtozoanAntigens, CD19Antigens, ProtozoanB-LymphocytesChildChild, PreschoolFemaleHumansImmunoglobulin GMalaria, FalciparumMalaria VaccinesMaleADP-ribosyl Cyclase 1Antibodies, ProtozoanAntigens, CD19Antigens, Protozoanapical membrane antigen I, Plasmodiumcircumsporozoite protein, Protozoanerythrocyte-binding antigen 175, PlasmodiumImmunoglobulin GMalaria VaccinesMembrane ProteinsMerozoite Surface Protein 1Protozoan ProteinsTumor Necrosis Factor Receptor Superfamily, Member 7

Identifiers

PMID22252876
PMCPMC3318420
OpenAlexW2000825145

What OpenQuestion holds

Textmetadata
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.