Evidence map›Paper›PMID 39232787›Full record

ArticleMalaria journal2024

Asymptomatic carriage of Plasmodium falciparum in children living in a hyperendemic area occurs independently of IgG responses but is associated with a balanced inflammatory cytokine ratio.

Balotin Fogang, Matthieu Schoenhals, Franklin M Maloba, Marie Florence Biabi, Estelle Essangui, Christiane Donkeu, Glwadys Cheteug, Marie Kapen, Rodrigue Keumoe, Sylvie Kemleu and 7 more

Abstract read
In one paragraph

Article in Malaria journal, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
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

2 citing papers in PubMed.

  1. Article
  2. Review
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

17 authors.

Balotin FogangMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Matthieu SchoenhalsMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Franklin M MalobaMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Marie Florence BiabiMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Estelle EssanguiMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Christiane DonkeuMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Glwadys CheteugMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Marie KapenMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Rodrigue KeumoeMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Sylvie KemleuMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Sandrine NsangoMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Douglas H CornwallDepartment of Pathology, University of Utah, 15 N Medical Drive, Salt Lake City, 84112, USA.
Carole EboumbouMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Ronald PerrautMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon.
Rosette MegnekouDepartment of Animal Biology and Physiology of the University of Yaoundé I, BP 812, Yaounde, Cameroon.
Tracey J LambDepartment of Pathology, University of Utah, 15 N Medical Drive, Salt Lake City, 84112, USA. tracey.lamb@path.utah.edu.
Lawrence S AyongMolecular Parasitology Laboratory, Centre Pasteur du Cameroun, BP 1274, Yaounde, Cameroon. layong05@yahoo.co.uk.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAsymptomatic carriage of infected red blood cells (iRBCs) can be prevalent in communities regardless of transmission patterns and can occur with infection of different Plasmodium species. Clinical immunity dampens the inflammatory responses leading to disease symptoms in malaria. The aim of this study was to define the immunological correlates of asymptomatic carriage of Plasmodium falciparum in a highly exposed population.

methods142 asymptomatic Plasmodium-infected individuals greater than 2 years of age without fever (body temperature <37.5 ℃) were followed weekly for 10 weeks before being treated with artemisinin-based combination therapy (ACT). Plasma levels of 38 cytokines were measured at baseline by Luminex and the quantity and growth inhibitory activities of circulating parasite-reactive antibodies measured. The Plasmodium antigen tested included P. falciparum merozoite extract (ME) and schizont extract (SE), and the recombinant proteins erythrocyte binding antigen 175 (EBA-175) and merozoite surface protein 1 (MSP-1

resultsMedian levels of IgG against P. falciparum EBA-175 and MSP-1

conclusionThe above findings indicate that asymptomatic carriage of P. falciparum in children living in a hyperendemic area occurs independently of IgG but is associated with a balanced inflammatory cytokine ratio.

Indexed as

Carrier StateCytokinesImmunoglobulin GMalaria, FalciparumPlasmodium falciparumAdolescentAntibodies, ProtozoanAsymptomatic InfectionsChildChild, PreschoolEndemic DiseasesFemaleHumansMaleYoung AdultAntibodies, ProtozoanCytokinesImmunoglobulin GAsymptomatic malariaIgG and cytokine levelsIL-10Plasmodium falciparumTNF-α

Identifiers

PMID39232787
PMCPMC11375831

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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.