Evidence map›Paper›PMID 30670064›Full record

ArticleMalaria journal2019

Comparative analysis of IgG and IgG subclasses against Plasmodium falciparum MSP-1

Tebit Emmanuel Kwenti, Tufon Anthony Kukwah, Tayong Dizzle Bita Kwenti, Babila Raymond Nyassa, Meriki Henry Dilonga, George Enow-Orock, Nicholas Tendongfor, Nota Damian Anong, Samuel Wanji, Longdoh Anna Njunda and 1 more

Open access · goldAbstract read
In one paragraph

Article in Malaria journal, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
2.4field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 1 synthesis or guideline pooled it, 21 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

11 authors at 2 institutions in 1 country.

Tebit Emmanuel KwentiDepartment of Medical Laboratory Sciences, Faculty of Health Science, University of Buea, P.O. Box 23, Buea, Southwest Region, Cameroon. kwentitebit@yahoo.com.
Tufon Anthony KukwahRegional Hospital of Buea, P.O. Box 32, Buea, Southwest Region, Cameroon.
Tayong Dizzle Bita KwentiDepartment of Microbiology and Parasitology, Faculty of Science, University of Buea, P.O. Box 63, Buea, Southwest Region, Cameroon.
Babila Raymond NyassaDepartment of Microbiology and Parasitology, Faculty of Science, University of Buea, P.O. Box 63, Buea, Southwest Region, Cameroon.
Meriki Henry DilongaRegional Hospital of Buea, P.O. Box 32, Buea, Southwest Region, Cameroon.
George Enow-OrockRegional Hospital of Buea, P.O. Box 32, Buea, Southwest Region, Cameroon.
Nicholas TendongforDepartment of Public Health and Hygiene, Faculty of Health Science, University of Buea, P.O. Box 23, Buea, Southwest Region, Cameroon.
Nota Damian AnongDepartment of Biological Science, Faculty of Science, University of Bamenda, Bamenda, North West Region, Cameroon.
Samuel WanjiParasites and Vector Biology Research Unit, Department of Microbiology and Parasitology, University of Buea, Buea, Cameroon.
Longdoh Anna NjundaDepartment of Medical Laboratory Sciences, Faculty of Health Science, University of Buea, P.O. Box 23, Buea, Southwest Region, Cameroon.
Theresa Nkuo-AkenjiDepartment of Biological Science, Faculty of Science, University of Bamenda, Bamenda, North West Region, Cameroon.
University of Buea · CMUniversity of Bamenda · CM

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundStudies reporting the natural immune responses against malaria in children from different geographical settings in endemic areas are not readily available. This study was aimed at comparing the immune responses against Plasmodium falciparum MSP-1

methodsIn a cross-sectional survey, children between 2 and 15 years, were enrolled from five ecological strata including the south Cameroonian equatorial forest, sudano-sahelian, high inland plateau, high western plateau, and the coastal strata. The children were screened for clinical malaria (defined by malaria parasitaemia ≥ 5000 parasites/µl plus axillary temperature ≥ 37.5 °C). Their antibody responses were measured against P. falciparum MSP-1

resultsIn all, 415 children comprising 217 (52.3%) males participated. Total IgG and IgG1-IgG4 titres were observed to increase with age in all the strata except in the sudano-sahelian and high inland plateau strata. Total IgG and IgG1-IgG4 titres were significantly higher in the coastal strata and lowest in the high inland plateau (for IgG1 and IgG2) and sudano-sahelian strata (for IgG3 and IgG4). Titres of the cytophilic antibodies (IgG1 and IgG3) were significantly higher than the non-cytophilic antibodies (IgG2 and IgG4) in all the strata except in the sudano-sahelian and high inland plateau strata. Total IgG and IgG subclass titres were significantly higher in children positive for clinical malaria compared to negative children in all study sites except in the high western plateau and coastal (for IgG1 and IgG3), and the sudano-sahelian strata (for all antibodies). Furthermore, a significant positive correlation was observed between parasite density and IgG2 or IgG4 titres in all study sites except in the south Cameroonian equatorial forest and sudano-sahelian strata.

conclusionsThis study showed that antibody responses against MSP-1

Indexed as

AdolescentCameroonChildChild, PreschoolCross-Sectional StudiesEnvironmentEnzyme-Linked Immunosorbent AssayFemaleHumansImmunoglobulin GMalaria, FalciparumMaleParasitemiaPlasmodium falciparumProtozoan ProteinsImmunoglobulin GProtozoan ProteinsBioecological StrataCameroonChildrenELISAIgG subclassesMalaria immune responsesMSP-1

Identifiers

PMID30670064
PMCPMC6341684
OpenAlexW2930400071

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.