Abstract:
:For more than 50 years DEET (N,N-Diethyl-m-toluamide) has been considered the gold standard of repellents. It is applied to the skin or clothing to deter mosquitoes and other blood-sucking invertebrate pests from approaching and/or settling, and ultimately it provides temporary protection from bites. Despite rampant global use, surprisingly little is understood about DEET's mode of action and the molecular targets of the active ingredient. Furthermore, the theories into its mechanism for repellency are largely based off fruit fly and mosquito research. Since ticks possess a unique sensory structure, the Haller's organ, the specific genes and pathways associated with DEET avoidance may differ from insects. In these studies, we collected American dog ticks (Dermacentor variabilis) from four natural populations within Manitoba, Canada. We first carried out behavior assays, which showed DEET effectively repelled the ticks. RNA sequencing revealed that DEET caused a rapid and substantial reduction in the abundance of transcripts encoding cytochrome P450 and acetylcholinesterase genes, which gradually recovered over the 24 h time course. Finally, enzymatic kinetics provided functional support for DEET's role as an effective inhibitor of P450 s. While many facets of its mode of action remain to be worked out, our study provides valuable insights into the molecular underpinnings of DEET's repellence in ticks.
journal_name
Ticks Tick Borne Disjournal_title
Ticks and tick-borne diseasesauthors
Koloski CW,LeMoine CMR,Klonowski AR,Smith CM,Cassone BJdoi
10.1016/j.ttbdis.2018.12.006subject
Has Abstractpub_date
2019-04-01 00:00:00pages
515-522issue
3eissn
1877-959Xissn
1877-9603pii
S1877-959X(18)30444-8journal_volume
10pub_type
杂志文章abstract::Tick-borne encephalitis virus (TBEV) is a zoonotic agent causing severe encephalitis in humans. A wide range of animal species could be infected with TBEV in endemic areas. A serological survey of wild animals is effective in identifying TBEV-endemic areas. Safe, simple, and reliable TBEV serodiagnostic tools are need...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.03.002
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abstract::The raccoon (Procyon lotor) and the raccoon dog (Nyctereutes procyonoides) belong to a group of the invasive species. The introduced species as potential reservoirs for vector-borne pathogens have been the subject of recent research, though there are still no data with reference to the European population of the racco...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.03.018
更新日期:2018-05-01 00:00:00
abstract::This study was aimed to know epidemiological aspects of Borrelia spp. in a protected urban area of Buenos Aires city, Argentina, where thousands of people visit this area for recreational purposes. Ticks were collected from vegetation, birds and dogs. Three hundred and forty birds belonging to 43 species, 41 genera, 1...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101282
更新日期:2019-10-01 00:00:00
abstract::Ticks are important vectors of pathogens affecting humans and animals worldwide. They do not only carry pathogens but diverse commensal and symbiotic microorganisms are also present in ticks. A molecular screening for tick-borne pathogens and endosymbionts was carried out in Ixodes ricinus, Dermacentor reticulatus and...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.05.002
更新日期:2018-07-01 00:00:00
abstract::In this study, we examine the current pattern of tick diversity and host use in French Guiana, South America, from 97 sampling localities encompassing peri-urban, rural and natural habitats. We collected 3395 ticks, including 1485 specimens from 45 vertebrate species (humans, domestic and wild animals) and 1910 questi...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.09.003
更新日期:2019-01-01 00:00:00
abstract::This study investigated the first outbreak of oriental theileriosis in a herd of beef cattle in South Australia using a newly established multiplexed tandem PCR (MT-PCR) to identify, differentiate and quantitate the four genotypes (buffeli, chitose, ikeda and type 5) of Theileria orientalis recognised to occur in Aust...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2015.04.012
更新日期:2015-07-01 00:00:00
abstract::The human pathogens Borrelia afzelii, which causes Lyme borreliosis and B. miyamotoi, which causes relapsing fever, both circulate between Ixodes ricinus ticks and rodents. The spatiotemporal dynamics in the prevalence of these pathogens have not yet been fully elucidated, but probably depend on the spatiotemporal pop...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2017.08.008
更新日期:2018-02-01 00:00:00
abstract::Animal production has a key role in global economic development and food security. Ticks, specifically Rhipicephalus microplus cause substantial economic and health impacts on more than eighty percent of the world cattle population. Though synthetic acaricides play a major role in tick management, their injudicious us...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2021.101655
更新日期:2021-01-19 00:00:00
abstract::The present study provides the first epidemiological data on infection with Babesia bovis in cattle raised in the southwestern Brazilian Amazon. Blood clot samples were filtered through nylon cloth before being submitted to DNA extraction. PCR and nested-PCR were applied to assess the frequency of infection with B. bo...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2012.08.001
更新日期:2013-02-01 00:00:00
abstract::Amblyomma rotundatum is an ixodid tick strictly associated with cold-blooded animals, among them the toad Rhinella jimi. This work aimed to evaluate the seasonal dynamics of larvae, nymphs, and adults of A. rotundatum parasitizing R. jimi in an area within the semi-arid Caatinga Biome of northeastern Brazil. Monthly s...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.06.005
更新日期:2018-07-01 00:00:00
abstract::With the aim of finding quantitative phenotypic traits that can be used to discriminate the levels of resistance/susceptibility to Babesia bovis, we estimated the repeatability and correlation between the level of infection, determined by the number of copies of a fragment of the gene that encodes cytochrome B (NC mt-...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.11.008
更新日期:2017-03-01 00:00:00
abstract::Ixodes affinis Neumann (1899) and Ixodes scapularis Say (1821) are tick vectors of the etiologic agent of Lyme disease, Borrelia burgdorferi sensu stricto. Ixodes affinis and I. scapularis are morphologically very similar, and as they are sympatric in the mid- and south-Atlantic U.S. coastal states, their accurate ide...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.08.003
更新日期:2014-02-01 00:00:00
abstract::The number of tick-borne infections in the northern European regions of Russia has increased considerably in the last years. In the present study, 676 unfed adult Ixodes persulcatus ticks were collected in the Komi Republic from 2011 to 2013 to study tick-borne rickettsioses. Rickettsia spp. DNA was detected by PCR in...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2017.04.001
更新日期:2017-06-01 00:00:00
abstract::Lyme borreliosis is a vector-borne zoonosis caused by Borrelia burgdorferi sensu lato species complex spirochetes, which are maintained in transmission cycles among vertebrates and Ixodes ticks. Recently, a new genospecies within this complex, Borrelia chilensis, was described in Ixodes stilesi collected from the envi...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2017.05.007
更新日期:2017-08-01 00:00:00
abstract::Equine piroplasmosis (EP) is an important tick-borne disease of equids, caused by Theileria equi and Babesia caballi. It is endemic in most parts of the world, including Israel, and has clinical and economic consequences. This study was set to evaluate the presence of EP parasites in domestic donkeys and in wild equid...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101286
更新日期:2020-01-01 00:00:00
abstract::This study reports the results of a comparative test of identification of ticks occurring in Western Europe and Northern Africa. A total of 14 laboratories were voluntarily enrolled in the test. Each participant received between 22 and 25 specimens of adult and nymphal ticks of 11 species: Dermacentor marginatus, D. r...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2017.03.001
更新日期:2017-06-01 00:00:00
abstract::Severe fever with thrombocytopenia syndrome virus (SFTSV) is an emerging tick-borne pathogen in China, Japan, and the Republic of Korea (ROK). The aim of this study was to investigate the prevalence of SFTSV antigens and anti-SFTSV antibodies in black goats (Capra hircus coreanae) throughout the ROK. Sera were collect...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2018.04.018
更新日期:2018-07-01 00:00:00
abstract::The hard tick Ixodes ricinus is the principal vector of Lyme borreliosis (LB) group spirochaetes in Europe, but it also transmits a large number of other microbial pathogens that are of importance to animal and human health. Here, we characterise geographically distinct populations of this important ectoparasite based...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.10.001
更新日期:2014-03-01 00:00:00
abstract::Anaplasma species are obligate intracellular rickettsial pathogens that affect the health of humans and animals. In this study, we investigated the presence and frequency of Anaplasma species by 16S rRNA PCR-RLB, RFLP, and DNA sequencing in 200 apparently healthy cattle. Anaplasma spp. overall infection rate was 38.5 ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101604
更新日期:2021-01-01 00:00:00
abstract::A total of 7364 ticks belonging to 13 species was collected from 64 game animals (belonging to 11 species) and from 64 livestock animals (cattle and sheep) living in close vicinity at 6 localities in 3 South African Provinces (Free State, Mpumalanga, and Limpopo). The geographic distribution of all tick species was co...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.10.003
更新日期:2014-03-01 00:00:00
abstract::Hepatozoon canis is a blood parasite of the suborder Adeleorina infecting wild and domestic canids. Transmission occurs by oral uptake of Rhipicephalus sanguineus sensu lato vector ticks infected with H. canis, but vertical transmission is also assumed to be possible. In German foxes, a high prevalence of H. canis has...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101520
更新日期:2020-11-01 00:00:00
abstract::The entomopathogenic fungus Metarhizium anisopliae is used as a biological pest control agent against various arthropod species, including ticks. However, the efficacy depends on tick species, tick stage and fungus strain. We studied the effect of M. anisopliae on engorged larvae and nymphs of Ixodes ricinus, the most...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.03.010
更新日期:2016-07-01 00:00:00
abstract::Rhipicephalus (Boophilus) microplus (Acari: Ixodidae) ticks cause economic losses for cattle industries throughout tropical and subtropical regions of the world estimated at $US2.5 billion annually. Lack of access to efficacious long-lasting vaccination regimes and increases in tick acaricide resistance have led to th...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2014.03.005
更新日期:2014-09-01 00:00:00
abstract::Theileria parva is a tick-transmitted protozoan parasite that causes a disease called East Coast fever (ECF) in cattle. This important tick borne-disease (TBD) causes significant economic losses in cattle in many sub-Saharan countries, including Tanzania. Cattle immunization using Muguga cocktail has been recommended ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.05.007
更新日期:2019-08-01 00:00:00
abstract::Bacterial pathogens of the families Anaplasmataceae and Rickettsiaceae are often spread to humans or other animals from bites from infected arthropod hosts. Recently, an increasing number of studies have implicated migratory birds in the circulation of these pathogens through the spread of arthropod vectors. However, ...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2016.01.015
更新日期:2016-04-01 00:00:00
abstract::Kemerovo virus (KEMV) is a member of the Great Island virus genetic group, belonging to the tick-borne arboviruses of the genus Orbivirus within the family Reoviridae. Nine strains of KEMV, which were isolated from various locations in Russia, were sequenced by high-throughput sequencing to study their intraspecific d...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101333
更新日期:2020-03-01 00:00:00
abstract::Bovine anaplasmosis is a globally economically important tick-borne disease caused by the obligate intraerythrocytic rickettsia, Anaplasma marginale. A live Anaplasma centrale blood-based vaccine is available, but it does not protect against all A. marginale field strains and may also transmit other blood-borne pathog...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2020.101444
更新日期:2020-07-01 00:00:00
abstract::Anaplasma phagocytophilum is an obligate intracellular and tick-transmitted bacterium, which causes granulocytic anaplasmosis in animals and humans. Although infection with A. phagocytophilum in domestic animals and vector ticks is documented, there is sparse information on the occurrence of A. phagocytophilum in wild...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2013.11.001
更新日期:2014-04-01 00:00:00
abstract::The water buffalo industry is a vital part of the Philippine livestock economy and is an essential contributor to the developing local dairy industry. Although relatively less susceptible to diseases, water buffaloes can still be infected and can act as reservoirs of tick-borne pathogens (TBPs). However, limited infor...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.03.016
更新日期:2019-06-01 00:00:00
abstract::Complement is a key first line innate host defense system in the blood of vertebrates. Upon activation, this powerful defense mechanism can elicit inflammatory responses, lyse non-self-cells, or mark them for opsonophagocytic removal. Blood-feeding arthropods thus require the ability to block host complement activatio...
journal_title:Ticks and tick-borne diseases
pub_type: 杂志文章
doi:10.1016/j.ttbdis.2019.101354
更新日期:2020-03-01 00:00:00