Evidence map›Paper›PMID 31604938›Full record

ArticleNature communications2019

Cis-regulatory CYP6P9b P450 variants associated with loss of insecticide-treated bed net efficacy against Anopheles funestus.

Leon M J Mugenzi, Benjamin D Menze, Magellan Tchouakui, Murielle J Wondji, Helen Irving, Micareme Tchoupo, Jack Hearn, Gareth D Weedall, Jacob M Riveron, Charles S Wondji

Open access · goldAbstract read
In one paragraph

Article in Nature communications, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 69 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
69citing papers in PubMed, 1 pooled it
12.4field-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

69 citing papers in PubMed, 1 synthesis or guideline pooled it, 136 citations in OpenAlex.

  1. Pooled it
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  6. Complex Roles of Insect Cytochrome P450s in Chemical Adaptation.International journal of biological sciences · 2026
    Review
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9 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 3 institutions in 2 countries.

Leon M J MugenziVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Benjamin D MenzeVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Magellan TchouakuiCentre for Research in Infectious Diseases (CRID), P.O. Box, 13501, Yaoundé, Cameroon.
Murielle J WondjiVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Helen IrvingVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Micareme TchoupoCentre for Research in Infectious Diseases (CRID), P.O. Box, 13501, Yaoundé, Cameroon.
Jack HearnVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.ORCID http://orcid.org/0000-0003-3358-4949
Gareth D WeedallVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Jacob M RiveronVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK.
Charles S WondjiVector Biology Department, Liverpool School of Tropical Medicine, Pembroke Place, Liverpool, L3 5QA, UK. charles.wondji@lstmed.ac.uk.ORCID http://orcid.org/0000-0003-0791-3673
Liverpool School of Tropical Medicine · GBMinistry of Scientific Research and Innovation · CMUniversity of Buea · CM

Funding

Wellcome TrustWellcome Trust 101893/Z/13/Z
6 · The paper itself

Abstract

Elucidating the genetic basis of metabolic resistance to insecticides in malaria vectors is crucial to prolonging the effectiveness of insecticide-based control tools including long lasting insecticidal nets (LLINs). Here, we show that cis-regulatory variants of the cytochrome P450 gene, CYP6P9b, are associated with pyrethroid resistance in the African malaria vector Anopheles funestus. A DNA-based assay is designed to track this resistance that occurs near fixation in southern Africa but not in West/Central Africa. Applying this assay we demonstrate, using semi-field experimental huts, that CYP6P9b-mediated resistance associates with reduced effectiveness of LLINs. Furthermore, we establish that CYP6P9b combines with another P450, CYP6P9a, to additively exacerbate the reduced efficacy of insecticide-treated nets. Double homozygote resistant mosquitoes (RR/RR) significantly survive exposure to insecticide-treated nets and successfully blood feed more than other genotypes. This study provides tools to track and assess the impact of multi-gene driven metabolic resistance to pyrethroids, helping improve resistance management.

Indexed as

Insecticide-Treated BednetsAfricaAnimalsAnophelesCytochrome P-450 Enzyme SystemGene Expression ProfilingGenotypeInsecticide ResistanceInsect ProteinsMosquito ControlMosquito VectorsPolymorphism, GeneticPyrethrinsCytochrome P-450 Enzyme SystemInsect ProteinsPyrethrins

Identifiers

PMID31604938
PMCPMC6789023
OpenAlexW2979966268

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.