User profiles for Osamu Komagata

Osamu KOMAGATA

Department of Medical Entomology, National Institute of Infectious Diseases
Verified email at niid.go.jp
Cited by 2319

[HTML][HTML] Mechanisms of Pyrethroid Resistance in the Dengue Mosquito Vector, Aedes aegypti: Target Site Insensitivity, Penetration, and Metabolism

S Kasai, O Komagata, K Itokawa, T Shono… - PLoS neglected …, 2014 - journals.plos.org
Aedes aegypti is the major vector of yellow and dengue fevers. After 10 generations of adult
selection, an A. aegypti strain (SP) developed 1650-fold resistance to permethrin, which is …

[HTML][HTML] Widespread Distribution of a Newly Found Point Mutation in Voltage-Gated Sodium Channel in Pyrethroid-Resistant Aedes aegypti Populations in Vietnam

H Kawada, Y Higa, O Komagata, S Kasai… - PLoS neglected …, 2009 - journals.plos.org
Background Resistance of Aedes aegypti to photostable pyrethroid insecticides is a major
problem for disease-vector control programs. Pyrethroids target the voltage-gated sodium …

First detection of a putative knockdown resistance gene in major mosquito vector, Aedes albopictus

…, CS Tang, K Itokawa, O Komagata… - Japanese journal of …, 2011 - jstage.jst.go.jp
The Asian tiger mosquito, Aedes albopictus (Skuse), is the major vector of Chikungunya
fever and the secondary vector of dengue fever. We collected Ae. albopictus from Singapore …

[HTML][HTML] A Single Crossing-Over Event in Voltage-Sensitive Na+ Channel Genes May Cause Critical Failure of Dengue Mosquito Control by Insecticides

K Hirata, O Komagata, K Itokawa… - PLoS neglected …, 2014 - journals.plos.org
The voltage-sensitive sodium (Na + ) channel (Vssc) is the target site of pyrethroid
insecticides. Pest insects develop resistance to this class of insecticide by acquisition of one or …

Overexpression of cytochrome P450 genes in pyrethroid-resistant Culex quinquefasciatus

O Komagata, S Kasai, T Tomita - Insect biochemistry and molecular biology, 2010 - Elsevier
JPal-per strain of Culex quinquefasciatus exhibits extremely high resistance against
pyrethroids in larvae, though the resistance is greatly lower in adults. Increased microsome …

[HTML][HTML] Multimodal Pyrethroid Resistance in Malaria Vectors, Anopheles gambiae ss, Anopheles arabiensis, and Anopheles funestus ss in Western Kenya

H Kawada, GO Dida, K Ohashi, O Komagata, S Kasai… - PloS one, 2011 - journals.plos.org
Anopheles gambiae ss, Anopheles arabiensis, and Anopheles funestus ss are the most
important species for malaria transmission. Pyrethroid resistance of these vector mosquitoes is …

[HTML][HTML] Testing the causality between CYP9M10 and pyrethroid resistance using the TALEN and CRISPR/Cas9 technologies

K Itokawa, O Komagata, S Kasai, K Ogawa, T Tomita - Scientific reports, 2016 - nature.com
Recently-emerging genome editing technologies have enabled targeted gene knockout
experiments even in non-model insect species. For studies on insecticide resistance, genome …

[HTML][HTML] First detection of a Vssc allele V1016G conferring a high level of insecticide resistance in Aedes albopictus collected from Europe (Italy) and Asia (Vietnam) …

…, V Pichler, K Itokawa, K Murota, O Komagata… - …, 2019 - eurosurveillance.org
Introduction Aedes albopictus (Skuse) is an important vector of arboviral diseases, including
dengue, chikungunya and Zika virus disease. Monitoring insecticide resistance and …

Genomic structures of Cyp9m10 in pyrethroid resistant and susceptible strains of Culex quinquefasciatus

K Itokawa, O Komagata, S Kasai, Y Okamura… - Insect biochemistry and …, 2010 - Elsevier
Development of insecticide resistance reduces the efficacy of controlling measures against
the medical and agricultural insect pests. Cytochrome P450s are one of the major …

Discovery of super–insecticide-resistant dengue mosquitoes in Asia: Threats of concomitant knockdown resistance mutations

…, KC Mulyatno, K Sawabe, T Tomita, O Komagata - Science …, 2022 - science.org
Aedes aegypti (Linnaeus, 1762) is the main mosquito vector for dengue and other arboviral
infectious diseases. Control of this important vector highly relies on the use of insecticides, …