Evidence map›Paper›PMID 29432484›Full record

ArticlePLoS neglected tropical diseases2018

Submicroscopic placental infection by non-falciparum Plasmodium spp.

Justin Y A Doritchamou, Richard A Akuffo, Azizath Moussiliou, Adrian J F Luty, Achille Massougbodji, Philippe Deloron, Nicaise G Tuikue Ndam

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 2 pooled it
3.0field-weighted citation impact, top 10% 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

13 citing papers in PubMed, 2 syntheses or guidelines pooled it, 26 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Article
  4. Current update on malaria in pregnancy: a systematic review.Tropical diseases, travel medicine and vaccines · 2025
    Review
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  12. 8-Aminoquinoline Therapy for Latent Malaria.Clinical microbiology reviews · 2019
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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

7 authors at 3 institutions in 3 countries.

Justin Y A DoritchamouMERIT, Intitut de Recherche pour le Developpement-Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Richard A AkuffoNoguchi Memorial Institute for Medical Research, University of Ghana, Accra, Ghana.
Azizath MoussiliouMERIT, Intitut de Recherche pour le Developpement-Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Adrian J F LutyMERIT, Intitut de Recherche pour le Developpement-Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Achille MassougbodjiCentre d'Etude et de Recherche sur le Paludisme Associé à la Grossesse et à l'Enfance (CERPAGE), Faculté des Sciences de la Santé, Université d'Abomey-Calavi, Cotonou, Benin.
Philippe DeloronMERIT, Intitut de Recherche pour le Developpement-Université Paris Descartes, Sorbonne Paris Cité, Paris, France.
Nicaise G Tuikue NdamMERIT, Intitut de Recherche pour le Developpement-Université Paris Descartes, Sorbonne Paris Cité, Paris, France.ORCID 0000-0003-2646-2513
Délégation Paris 5 · FRUniversité d'Abomey-Calavi · BJUniversity of Ghana · GH

Funding

Pregnancy Malaria Vaccine developmentZIAAI001176 · NIAID · NATIONAL INSTITUTE OF ALLERGY AND INFECTIOUS DISEASES · PI DUFFY, PATRICK · 2012 to 2025
$5.6M
6 · The paper itself

Abstract

backgroundAmong the Plasmodium species that infect humans, adverse effects of P. falciparum and P. vivax have been extensively studied and reported with respect to poor outcomes particularly in first time mothers and in pregnant women living in areas with unstable malaria transmission. Although, other non-falciparum malaria infections during pregnancy have sometimes been reported, little is known about the dynamics of these infections during pregnancy. METHODS AND

findingsUsing a quantitative PCR approach, blood samples collected from Beninese pregnant women during the first antenatal visit (ANV) and at delivery including placental blood were screened for Plasmodium spp. Risk factors associated with Plasmodium spp. infection during pregnancy were assessed as well as the relationships with pregnancy outcomes. P. falciparum was the most prevalent Plasmodium species detected during pregnancy, irrespective either of parity, of age or of season during which the infection occurred. Although no P. vivax infections were detected in this cohort, P. malariae (9.2%) and P. ovale (5.8%) infections were observed in samples collected during the first ANV. These non-falciparum infections were also detected in maternal peripheral blood (1.3% for P. malariae and 1.2% for P. ovale) at delivery. Importantly, higher prevalence of P. malariae (5.5%) was observed in placental than peripheral blood while that of P. ovale was similar (1.8% in placental blood). Among the non-falciparum infected pregnant women with paired peripheral and placental samples, P. malariae infections in the placental blood was significantly higher than in the peripheral blood, suggesting a possible affinity of P. malariae for the placenta. However, no assoctiation of non-falciparum infections and the pregnancy outcomes was observed.

conclusionsOverall this study provided insights into the molecular epidemiology of Plasmodium spp. infection during pregnancy, indicating placental infection by non-falciparum Plasmodium and the lack of association of these infections with adverse pregnancy outcomes.

Indexed as

BeninBloodFemaleHumansMalariaMolecular EpidemiologyPlacentaPlacenta DiseasesPlasmodiumPregnancyPregnancy Complications, InfectiousPregnancy OutcomeReal-Time Polymerase Chain ReactionRisk Factors

Identifiers

PMID29432484
PMCPMC5825172
OpenAlexW2786913955

What OpenQuestion holds

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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.