Evidence map›Paper›PMID 29017590›Full record

ReviewParasites & vectors2017

Review of the evolution of insecticide resistance in main malaria vectors in Cameroon from 1990 to 2017.

Christophe Antonio-Nkondjio, N Sonhafouo-Chiana, C S Ngadjeu, P Doumbe-Belisse, A Talipouo, L Djamouko-Djonkam, E Kopya, R Bamou, P Awono-Ambene, Charles S Wondji

Open access · goldAbstract readReview
In one paragraph

Review in Parasites & vectors, 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 78 papers.

0numbers the graph read from it
0cells of the map it votes in
78citing papers in PubMed
11.2field-weighted citation impact, top 1% 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

78 citing papers in PubMed, 138 citations in OpenAlex.

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18 more citing papers are in PubMed but not listed here.

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 5 institutions in 2 countries.

Christophe Antonio-NkondjioLaboratoire de Recherche sur le Paludisme, Organisation de Coordination pour la lutte Contre les Endémies en Afrique Centrale (OCEAC), Yaoundé, Cameroon. antonio_nk@yahoo.fr.
N Sonhafouo-ChianaFaculty of Health Sciences, University of Buea, Buea, Cameroon.
C S NgadjeuFaculty of Sciences, University of Yaoundé I, Yaoundé, Cameroon.
P Doumbe-BelisseFaculty of Sciences, University of Yaoundé I, Yaoundé, Cameroon.
A TalipouoFaculty of Sciences, University of Yaoundé I, Yaoundé, Cameroon.
L Djamouko-DjonkamFaculty of Sciences, University of Dschang, Dschang, Cameroon.
E KopyaFaculty of Sciences, University of Yaoundé I, Yaoundé, Cameroon.
R BamouFaculty of Sciences, University of Dschang, Dschang, Cameroon.
P Awono-AmbeneLaboratoire de Recherche sur le Paludisme, Organisation de Coordination pour la lutte Contre les Endémies en Afrique Centrale (OCEAC), Yaoundé, Cameroon.
Charles S WondjiVector Group, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, UK.
Université de Yaoundé I · CMOrganisation de Coordination pour la lutte contre les Endémies en Afrique Centrale · CMUniversité de Dschang · CMLiverpool School of Tropical Medicine · GBUniversity of Buea · CM

Funding

Wellcome Trust 202687/Z/16/Z
6 · The paper itself

Abstract

backgroundMalaria remains a major public health threat in Cameroon and disease prevention is facing strong challenges due to the rapid expansion of insecticide resistance in vector populations. The present review presents an overview of published data on insecticide resistance in the main malaria vectors in Cameroon to assist in the elaboration of future and sustainable resistance management strategies.

methodsA systematic search on mosquito susceptibility to insecticides and insecticide resistance in malaria vectors in Cameroon was conducted using online bibliographic databases including PubMed, Google and Google Scholar. From each peer-reviewed paper, information on the year of the study, mosquito species, susceptibility levels, location, insecticides, data source and resistance mechanisms were extracted and inserted in a Microsoft Excel datasheet. The data collected were then analysed for assessing insecticide resistance evolution.

resultsThirty-three scientific publications were selected for the analysis. The rapid evolution of insecticide resistance across the country was reported from 2000 onward. Insecticide resistance was highly prevalent in both An. gambiae (s.l.) and An. funestus. DDT, permethrin, deltamethrin and bendiocarb appeared as the most affected compounds by resistance. From 2000 to 2017 a steady increase in the prevalence of kdr allele frequency was noted in almost all sites in An. gambiae (s.l.), with the L1014F kdr allele being the most prevalent. Several detoxification genes (particularly P450 monooxygenase) were associated with DDT, pyrethroids and bendiocarb resistance. In An. funestus, resistance to DDT and pyrethroids was mainly attributed to the 119F-GSTe2 metabolic resistance marker and over-expression of P450 genes whereas the 296S-RDL mutation was detected in dieldrin-resistant An. funestus.

conclusionsThe review provides an update of insecticide resistance status in malaria vector populations in Cameroon and stresses the need for further actions to reinforce malaria control strategies in the coming years.

Indexed as

Evolution, MolecularAnimalsAnophelesCameroonGene FrequencyHumansInsecticide ResistanceInsecticidesInsect ProteinsMalariaMosquito VectorsMutationNitrilesPyrethrinsdecamethrinInsecticidesInsect ProteinsNitrilesPyrethrinsAn. funestusAn. gambiae (s.l.)CameroonInsecticide resistanceMalariaVector control

Identifiers

PMID29017590
PMCPMC5635606
OpenAlexW2763931229

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.