Evidence map›Paper›PMID 22533971›Full record

ArticleMalaria journal2012

Immunoglobulins against the surface of Plasmodium falciparum-infected erythrocytes increase one month after delivery.

Alfredo Mayor, Elisa Serra-Casas, Eduard Rovira-Vallbona, Alfons Jiménez, Llorenç Quintó, Betuel Sigaúque, Carlota Dobaño, Azucena Bardají, Pedro L Alonso, Clara Menéndez

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2012. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
0.9field-weighted citation impact, top 20% 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

4 citing papers in PubMed, 5 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

10 authors at 4 institutions in 2 countries.

Alfredo MayorBarcelona Centre for International Health Research, Hospital Clínic-Universitat de Barcelona, Barcelona, Spain. agmayor@clinic.ub.es
Elisa Serra-Casas
Eduard Rovira-Vallbona
Alfons Jiménez
Llorenç Quintó
Betuel Sigaúque
Carlota Dobaño
Azucena Bardají
Pedro L Alonso
Clara Menéndez
Universitat de Barcelona · ESBarcelona Centre for International Affairs · ESManhiça Health Research Centre · MZMinistry of Health · MZ

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe risk of Plasmodium falciparum malaria increases during pregnancy and at early postpartum. Immunological and physiological alterations associated with pregnancy that persist after delivery may contribute to the susceptibility to P. falciparum during early postpartum period.

methodsTo determine changes in antibody-mediated responses after pregnancy, levels of Immunoglobulin G (IgGs) specific for P. falciparum were compared in 200 pairs of plasmas collected from Mozambican women at delivery and during the first two months postpartum. IgGs against the surface of erythrocytes infected with a P. falciparum chondroitin sulphate A binding line (CS2) and a paediatric isolate (MOZ2) were measured by flow cytometry.

resultsIgG levels against CS2 and MOZ2 were higher at postpartum than at delivery (p = 0.033 and p = 0.045, respectively) in women without P. falciparum infection. The analysis stratified by parity and period after delivery showed that this increase was significant in multi-gravid women (p = 0.023 for CS2 and p = 0.054 for MOZ2) and during the second month after delivery (p = 0.018 for CS2 and p = 0.015 for MOZ2).

conclusionsThese results support the view that early postpartum is a period of recovery from physiological or immunological changes associated with pregnancy.

Indexed as

Postpartum PeriodAdultAntibodies, ProtozoanErythrocytesFemaleFlow CytometryHumansImmunoglobulin GMozambiquePlasmodium falciparumPregnancyYoung AdultAntibodies, ProtozoanImmunoglobulin G

Identifiers

PMID22533971
PMCPMC3423004
OpenAlexW2166832703

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.