Evidence map›Paper›PMID 11159991›Full record

ArticleInfection and immunity2001

Antibody responses to infections with strains of Plasmodium falciparum expressing diverse forms of merozoite surface protein 2.

S Weisman, L Wang, H Billman-Jacobe, D H Nhan, T L Richie, R L Coppel

Abstract read
In one paragraph

Article in Infection and immunity, 2001. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 20 papers.

0numbers the graph read from it
0cells of the map it votes in
20citing papers in PubMed
4.5field-weighted citation impact, top 6% 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

20 citing papers in PubMed, 38 citations in OpenAlex.

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  18. Antigenic diversity and immune evasion by malaria parasites.Clinical and diagnostic laboratory immunology · 2004
    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

6 authors at 3 institutions in 3 countries.

S WeismanDepartment of Microbiology, Monash University, Clayton, Victoria 3800, Australia.
L Wang
H Billman-Jacobe
D H Nhan
T L Richie
R L Coppel
Monash University · AUNational Institute of Malariology, Parasitology and Entomology · VNNaval Medical Research Command · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Individuals living in areas where Plasmodium falciparum is endemic experience numerous episodes of infection. These episodes may or may not be symptomatic, with the outcome depending on a combination of parasite and host factors, several of which are poorly understood. One factor is believed to be the particular alleles of several parasite proteins to which the host is capable of mounting protective immune responses. We report a study examining antibody responses to MSP2 in 15 semi-immune teenagers and adults living in the Khanh-Hoa area of southern-central Vietnam, where P. falciparum is highly endemic; subjects were serially infected with multiple strains of P. falciparum. The MSP2 alleles infecting these subjects were determined by nucleotide sequencing. A total of 62 MSP2 genes belonging to both dimorphic families were identified, of which 33 contained distinct alleles, with 61% of the alleles being detected once. Clear changes in the repertoire occurred between infections. Most infections contained a mixture of parasites expressing MSP2 alleles from both dimorphic families. Two examples of reinfection with a strain expressing a previously encountered allele were detected. Significant changes in antibody levels to various regions of MSP2 were detected over the course of the experiment. There was no clear relation between the infecting form of MSP2 and the ensuing antibody response. This study highlights the complexity of host-parasite relationship for this important human pathogen.

Indexed as

AdolescentAdultAmino Acid SequenceAnimalsAntibodies, ProtozoanAntigens, ProtozoanChildEnzyme-Linked Immunosorbent AssayFemaleHumansMalaria, FalciparumMaleMiddle AgedMolecular Sequence DataPlasmodium falciparumProtozoan ProteinsAntibodies, ProtozoanAntigens, Protozoanmerozoite surface protein 2, PlasmodiumProtozoan Proteins

Identifiers

PMID11159991
PMCPMC97975
OpenAlexW1996674271

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.