Evidence map›Paper›PMID 31022294›Full record

ArticlePloS one2019

Demographical, hematological and serological risk factors for Plasmodium falciparum gametocyte carriage in a high stable transmission zone in Cameroon.

Estelle Essangui, Carole Else Eboumbou Moukoko, Niels Nguedia, Michele Tchokwansi, Umaru Banlanjo, Franklin Maloba, Balotin Fogang, Christiane Donkeu, Marie Biabi, Glwadys Cheteug and 4 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 17 papers.

0numbers the graph read from it
0cells of the map it votes in
17citing papers in PubMed
1.6field-weighted citation impact, top 17% 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

17 citing papers in PubMed, 26 citations in OpenAlex.

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  17. HIV-1 Infection Is Associated With Increased Prevalence and Abundance ofFrontiers in cellular and infection microbiology · 2020
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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

14 authors at 4 institutions in 1 country.

Estelle EssanguiMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Carole Else Eboumbou MoukokoMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Niels NguediaMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Michele TchokwansiMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Umaru BanlanjoMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Franklin MalobaMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Balotin FogangMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Christiane DonkeuMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Marie BiabiMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Glwadys CheteugMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Sylvie KemleuMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Emmanuel Elanga-NdilleMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.
Léopold LehmanFaculty of Sciences, University of Douala, Douala, Cameroon.
Lawrence AyongMalaria Research Unit, Centre Pasteur Cameroon, Yaounde, Cameroon.ORCID 0000-0001-7717-4832
Centre Pasteur du Cameroun · CMUniversity of Douala · CMUniversity of Buea · CMUniversité de Yaoundé I · CM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Presence of mature gametocyte forms of malaria parasites in peripheral blood is a key requirement for malaria transmission. Yet, studies conducted in most malaria transmission zones report the absence of gametocyte in the majority of patients. We therefore sought to determine the risk factors of both all-stage and mature gametocyte carriage in an area with high stable transmission of Plasmodium falciparum in Cameroon. Gametocyte positivity was determined using three complementary methods: thick blood smear microscopy, RT-PCR and RT-LAMP, whereas exposure to the infection was assessed by enzyme-linked immunosorbent assay. Of 361 malaria endemic residents randomly included in the study (mean age: 28±23 years, age range: 2-100 years, male/female sex ratio: 1.1), 87.8% were diagnosed with P. falciparum infection, of whom 45.7% presented with fever (axillary body temperature ≥37.5°C). Mature gametocyte positivity was 1.9% by thick blood smear microscopy and 8.9% by RT-PCR targeting the mature gametocyte transcript, Pfs25. The gametocyte positivity rate was 24.1% and 36.3% by RT-PCR or RT-LAMP, respectively, when targeting the sexual stage marker, Pfs16. Multivariate analyses revealed anemia as a common independent risk factor for both mature and all-stage gametocyte carriage, whereas fever and low anti-gametocyte antibody levels were independently associated with all-stage gametocyte carriage only. Taken together, the data suggest important differences in risk factors of gametocyte carriage depending on stage analyzed, with anemia, fever and low antiplasmodial plasma antibody levels representing the major contributing risk factors.

Indexed as

DemographyAdolescentAdultCameroonCarrier StateFemaleGerm CellsHumansMalaria, FalciparumMaleMultivariate AnalysisPlasmodium falciparumPrevalenceRisk FactorsYoung Adult

Identifiers

PMID31022294
PMCPMC6483257
OpenAlexW2941715082

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.