Evidence map›Paper›PMID 23626680›Full record

ArticlePloS one2013

Resistance to DDT in an urban setting: common mechanisms implicated in both M and S forms of Anopheles gambiae in the city of Yaoundé Cameroon.

Billy Fossog Tene, Rodolphe Poupardin, Carlo Costantini, Parfait Awono-Ambene, Charles S Wondji, Hilary Ranson, Christophe Antonio-Nkondjio

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2013. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 72 papers.

0numbers the graph read from it
0cells of the map it votes in
72citing papers in PubMed
3.4field-weighted citation impact, top 7% 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

72 citing papers in PubMed, 117 citations in OpenAlex.

  1. Trial
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  9. Level of involvement of four selected cytochrome P450s (CYPs) in pyrethroid-resistantCurrent research in parasitology & vector-borne diseases · 2024
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  17. A globalBMC bioinformatics · 2022
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12 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

7 authors at 4 institutions in 3 countries.

Billy Fossog TeneLaboratoire de Recherche sur le Paludisme, Organisation de Coordination pour la lutte Contre les Endémies en Afrique Centrale, Yaoundé, Cameroon.
Rodolphe Poupardin
Carlo Costantini
Parfait Awono-Ambene
Charles S Wondji
Hilary Ranson
Christophe Antonio-Nkondjio
Liverpool School of Tropical Medicine · GBOrganisation de Coordination pour la lutte contre les Endémies en Afrique Centrale · CMMaladies Infectieuses et Vecteurs: Écologie, Génétique, Évolution et Contrôle · FRUniversité de Yaoundé I · CM

Funding

Wellcome TrustWellcome Trust WTO86423MA
6 · The paper itself

Abstract

backgroundIn the city of Yaoundé in Cameroon malaria is predominately transmitted by the M and S molecular forms of Anopheles gambiae and both are resistant to the pyrethroid insecticides and DDT. Mutations in the target site of these insecticides, present at a high frequency in malaria vectors in this city, contribute to this resistance profile. To identify additional resistance mechanisms, the expression profile of multiple DDT-resistant field populations of M and S molecular forms was compared to laboratory-susceptible populations. METHODOLOGY/PRINCIPAL

findingsThe prevalence of DDT resistance was highest in the S form population originating from the cultivated site of Nkolondom (mortality after WHO bioassay = 4%). A high prevalence of DDT resistance was also found in two urban M form populations, Messa from a pristine unpolluted environment (DDT mortality = 54%), and Gare, where the breeding sites are heavily polluted with organic matter (DDT mortality = 38%). Microarray analysis showed that several transcripts coding for detoxification enzymes (P450s, GSTs and UDPGTs) and ABC transporters were upregulated in the three populations. Despite the presence of multiple detoxification genes over expressed in the DDT-resistant subset of these field populations, only three were commonly over expressed in resistant populations from all three environments. Two of these genes, CYP6M2 and GSTD1-6, encode enzymes that have been previously shown to metabolize DDT. CONCLUSION/SIGNIFICANCE: Analogous to target site resistance, genes involved in metabolic resistance to DDT are also shared between the M and S forms of An gambiae. Alternative explanations for this occurrence are explored.

Indexed as

Gene Expression RegulationAnimalsAnophelesATP-Binding Cassette TransportersCameroonCytochrome P-450 Enzyme SystemDDTGene Expression ProfilingGene FrequencyGenotypeGlucuronosyltransferaseGlutathione TransferaseInactivation, MetabolicInsecticide ResistanceInsecticidesInsect ProteinsATP-Binding Cassette TransportersCytochrome P-450 Enzyme SystemDDTGlucuronosyltransferaseGlutathione TransferaseInsecticidesInsect ProteinsPyrethrins

Identifiers

PMID23626680
PMCPMC3634070
OpenAlexW2081207002

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.