Evidence map›Paper›PMID 34237076›Full record

ArticlePLoS neglected tropical diseases2021

Sodium channel activation underlies transfluthrin repellency in Aedes aegypti.

Felipe Andreazza, Wilson R Valbon, Qiang Wang, Feng Liu, Peng Xu, Elizabeth Bandason, Mengli Chen, Shaoying Wu, Leticia B Smith, Jeffrey G Scott and 5 more

Open access · goldAbstract read
In one paragraph

Article in PLoS neglected tropical diseases, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed, 1 pooled it
4.1field-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

16 citing papers in PubMed, 1 synthesis or guideline pooled it, 31 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. Article
  4. Article
  5. Article
  6. The BiteBarrier perimeter: A passive spatial device for tick control and bite prevention.Current research in parasitology & vector-borne diseases · 2025
    Article
  7. Article
  8. Article
  9. Article
  10. Article
  11. Article
  12. Methanolic Extracts ofPlants (Basel, Switzerland) · 2022
    Article
  13. Article
  14. Article
  15. Review
  16. Article
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

15 authors at 7 institutions in 3 countries.

Felipe AndreazzaDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.ORCID 0000-0003-3424-3177
Wilson R ValbonDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.ORCID 0000-0003-2038-5684
Qiang WangDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.
Feng LiuDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.
Peng XuDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.
Elizabeth BandasonDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.
Mengli ChenInstitute of Pesticide and Environmental Toxicology, Zhejiang University, Hangzhou, China.
Shaoying WuDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.
Leticia B SmithDepartment of Entomology, Cornell University, Ithaca, New York, United States of America.ORCID 0000-0002-8798-326X
Jeffrey G ScottDepartment of Entomology, Cornell University, Ithaca, New York, United States of America.
Youfa JiangJiangsu Yangnong Chemical Co., Ltd., Jiangsu, China.
Dingxin JiangKey Laboratory of Natural Pesticide and Chemical Biology, Ministry of Education, South China Agricultural University, Guangzhou, China.
Aijun ZhangInvasive Insect Biocontrol and Behavior Laboratory, Beltsville Agricultural Research Center-West, USDA-ARS, Beltsville, Maryland, United States of America.ORCID 0000-0002-2997-6803
Eugenio E OliveiraDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.ORCID 0000-0003-1174-6564
Ke DongDepartment of Entomology, Michigan State University, East Lansing, Michigan, United States of America.ORCID 0000-0002-9773-6350
Michigan United · USUniversidade Federal de Viçosa · BRCornell University · USBeltsville Agricultural Research Center · USDuke University · USSouth China Agricultural University · CNZhejiang University · CN

Funding

Molecular Mechanism of Pyrethroid Repellency in Drosophila Melanogaster and MosquitoesR01GM115475 · NIGMS · MICHIGAN STATE UNIVERSITY · PI DONG, KE · 2015 to 2018
$1.2M
NIGMS NIH HHS R01 GM115475
6 · The paper itself

Abstract

backgroundVolatile pyrethroid insecticides, such as transfluthrin, have received increasing attention for their potent repellent activities in recent years for controlling human disease vectors. It has been long understood that pyrethroids kill insects by promoting activation and inhibiting inactivation of voltage-gated sodium channels. However, the mechanism of pyrethroid repellency remains poorly understood and controversial. METHODOLOGY/PRINCIPAL

findingsHere, we show that transfluthrin repels Aedes aegypti in a hand-in-cage assay at nonlethal concentrations as low as 1 ppm. Contrary to a previous report, transfluthrin does not elicit any electroantennogram (EAG) responses, indicating that it does not activate olfactory receptor neurons (ORNs). The 1S-cis isomer of transfluthrin, which does not activate sodium channels, does not elicit repellency. Mutations in the sodium channel gene that reduce the potency of transfluthrin on sodium channels decrease transfluthrin repellency but do not affect repellency by DEET. Furthermore, transfluthrin enhances DEET repellency. CONCLUSIONS/SIGNIFICANCE: These results provide a surprising example that sodium channel activation alone is sufficient to potently repel mosquitoes. Our findings of sodium channel activation as the principal mechanism of transfluthrin repellency and potentiation of DEET repellency have broad implications in future development of a new generation of dual-target repellent formulations to more effectively repel a variety of human disease vectors.

Indexed as

AedesAnimalsCyclopropanesFluorobenzenesInsect ProteinsInsect RepellentsIsomerismSodium ChannelsCyclopropanesFluorobenzenesInsect ProteinsInsect RepellentsSodium Channelstransfluthrin

Identifiers

PMID34237076
PMCPMC8266078
OpenAlexW3179105761

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.