Publications
| Title | Abstract | Year Filter | PMID(sorted descending) Filter |
|---|
| efficacy of ulv and thermal aerosols of deltamethrin for control of aedes albopictus in nice, france. | ultra-low volume (ulv) insecticidal aerosols dispensed from vehicle-mounted cold-foggers are widely considered the method of choice for control of aedes aegypti and ae. albopictus during outbreaks of dengue and chikungunya and, more recently, zika. nevertheless, their effectiveness has been poorly studied, particularly in europe. nearly all published studies of ulv efficacy are bio-assays based on the mortality of caged mosquitoes. in our study we preferred to monitor the direct impact of treatm ... | 2016 | 27881181 |
| susceptibility profile and metabolic mechanisms involved in aedes aegypti and aedes albopictus resistant to ddt and deltamethrin in the central african republic. | aedes aegypti and ae. albopictus are the main epidemic vectors of dengue, chikungunya and zika viruses worldwide. their control during epidemics relies mainly on control of larvae and adults with insecticides. unfortunately, loss of susceptibility of both species to several insecticide classes limits the efficacy of interventions. in africa, where aedes-borne viruses are of growing concern, few data are available on resistance to insecticides. to fill this gap, we assessed the susceptibility to ... | 2016 | 27881148 |
| neurological manifestations of zika virus infection. | zika virus (zikv) is a flavivirus (flaviviridae family) transmitted mainly by aedes mosquitoes. the virus was restricted to the african continent until its spread to south-east asia in the 1980's, the micronesia in 2007, the french polynesia in 2013 and, more recently in the americas in 2015, where, up to date, the world health organization (who) has estimated about 3-4 million total cases of zikv infection. during outbreaks in the french polynesia and brazil in 2013 and 2015, respectively, nati ... | 0 | 27878100 |
| conserved chemosensory proteins in the proboscis and eyes of lepidoptera. | odorant-binding proteins (obps) and chemosensory proteins (csps) are endowed with several different functions besides being carriers for pheromones and odorants. based on a previous report of a csp acting as surfactant in the proboscis of the moth helicoverpa armigera, we revealed the presence of orthologue proteins in two other moths plutella xylostella and chilo suppressalis, as well as two butterflies papilio machaon and pieris rapae, using immunodetection and proteomic analysis. the unusual ... | 2016 | 27877091 |
| long-term spatio-temporal dynamics of the mosquito aedes aegypti in temperate argentina. | buenos aires city is located near the southern limit of the distribution of aedes aegypti (diptera: culicidae). this study aimed to assess long-term variations in the abundance of ae. aegypti in buenos aires in relation to changes in climatic conditions. ae. aegypti weekly oviposition activity was analyzed and compared through nine warm seasons from 1998 to 2014, with 200 ovitraps placed across the whole extension of the city. the temporal and spatial dynamics of abundances were compared among s ... | 2017 | 27876100 |
| methanolic extract of agerantum conyzoides exhibited toxicity and growth disruption activities against anopheles gambiae sensu stricto and anopheles arabiensis larvae. | vector control remains the mainstay to effective malaria management. the negative implications following persistent application of synthetic insecticides geared towards regulation of mosquito populations have necessitated prospection for ecofriendly effective chemistries. plant-derived compounds have the potential to control malaria-transmitting mosquito populations. previously, agerantum conyzoides extracts have demonstrated toxicity effects on disease-transmitting mosquitoes. however, their ef ... | 2016 | 27876055 |
| generation of monoclonal antibodies against native viral proteins using antigen-expressing mammalian cells for mouse immunization. | due to their rising incidence and progressive geographical spread, infections with mosquito-borne viruses, such as dengue (denv), chikungunya and zika virus, have developed into major public health challenges. since all of these viruses may cause similar symptoms and can occur in concurrent epidemics, tools for their differential diagnosis and epidemiological monitoring are of urgent need. | 2016 | 27876044 |
| low circulation of zika virus, cambodia, 2007-2016. | we describe a retrospective study on circulation of zika virus in cambodia during 2007-2016 among patients with dengue-like symptoms and aedes aegypti mosquitoes. our findings suggest that zika virus in cambodia belongs to the asia genotype, is endemic, has low prevalence, and has had low-level impact on public health. | 2017 | 27875110 |
| dengue with a morbilliform rash and a positive tourniquet test. | 2016 | 27872891 | |
| identification of genes for engineering the male germline of aedes aegypti and ceratitis capitata. | synthetic biology approaches are promising new strategies for control of pest insects that transmit disease and cause agricultural damage. these strategies require characterised modular components that can direct appropriate expression of effector sequences, with components conserved across species being particularly useful. the goal of this study was to identify genes from which new potential components could be derived for manipulation of the male germline in two major pest species, the mosqui ... | 2016 | 27871244 |
| methods and procedures used in aedes aegypti control in the successful campaign for yellow fever prophylaxis in rio de janeiro, brazil, in 1928 and 1929. | to review the challenges and procedures used in aedes aegypti control and the characteristics of the epidemics in the successful campaign, led by clementino fraga, for yellow fever control in rio de janeiro, brazil, in 1928 and 1929, before the vaccine (1937) and ddt (1947). | 2016 | 27869977 |
| incidence of dengue cases (2007-2013) and seasonal distribution of mosquitoes (diptera: culicidae) (2012-2013) in barreiras, bahia, brazil. | to describe seasonal mosquito distribution and the incidence of dengue cases in barreiras, bahia, brazil. | 2016 | 27869967 |
| [aedes aegypti control strategies: a review]. | to describe the main strategies to control aedes aegypti, with emphasis on promising technological innovations for use in brazil. | 2016 | 27869956 |
| no magic bullet: citizenship and social participation in the control of aedes aegypti. | 2016 | 27869933 | |
| mosquito oviposition behavior and vector control. | the burden of gene transfer from one mosquito generation to the next falls on the female and her eggs. the selection of an oviposition site that guarantees egg and larval survival is a critical step in the reproductive process. the dangers associated with ephemeral aquatic habitats, lengthy droughts, freezing winters, and the absence of larval nutrition makes careful oviposition site selection by a female mosquito extremely important. mosquito species exhibit a remarkable diversity of ovipositio ... | 2016 | 27869724 |
| a genome-wide identification and analysis of the basic helix-loop-helix transcription factors in brown planthopper, nilaparvata lugens. | the basic helix-loop-helix (bhlh) transcription factors in insects play essential roles in multiple developmental processes including neurogenesis, sterol metabolism, circadian rhythms, organogenesis and formation of olfactory sensory neurons. the identification and function analysis of bhlh family members of the most destructive insect pest of rice, nilaparvata lugens, may provide novel tools for pest management. here, a genome-wide survey for bhlh sequences identified 60 bhlh sequences (nlbhlh ... | 2016 | 27869716 |
| assessing the epidemic potential of rna and dna viruses. | many new and emerging rna and dna viruses are zoonotic or have zoonotic origins in an animal reservoir that is usually mammalian and sometimes avian. not all zoonotic viruses are transmissible (directly or by an arthropod vector) between human hosts. virus genome sequence data provide the best evidence of transmission. of human transmissible virus, 37 species have so far been restricted to self-limiting outbreaks. these viruses are priorities for surveillance because relatively minor changes in ... | 0 | 27869592 |
| [recommendations for the surveillance of aedes aegypti]. | diseases caused by arboviruses transmitted by aedes aegypti, such as dengue, chikungunya and zika, continue to rise in annual incidence and geographic expansion. a key limitation for achieving control of a. aegypti has been the lack of effective tools for monitoring its population, and thus determine what control measures actually work. surveillance of a. aegypti has been based mainly on immature indexes, but they bear little relation to the number of mosquito females, which are the ones capable ... | 2016 | 27869394 |
| [first report of the f1534c mutation associated with cross-resistance to ddt and pyrethroids in aedes aegypti from colombia]. | the main strategy for the control of aedes aegypti, vector of dengue, chikungunya and zika viruses, is based on the use of insecticides to reduce its populations. however, their use has led to insect resistance to these chemicals. objective: to determine the presence of the f1534c mutation associated with cross-resistance to ddt and pyrethroids in a. aegypti in sincelejo, colombia. materials and methods: we studied nine specimens of a. aegypti that showed resistance to lambdacyhalothrin in bioas ... | 2016 | 27869391 |
| factors influencing infection and transmission of anopheles gambiae densovirus (agdnv) in mosquitoes. | anopheles gambiae densovirus (agdnv) is a potential microbial agent for paratransgenesis and gene transduction in an. gambiae, the major vector of human malaria in sub-saharan africa. understanding the interaction between agdnv and an. gambiae is critical for using agdnv in a basic and applied manner for anopheles gene manipulation. here, we tested the effects of mosquito age, sex, blood feeding status, and potential for horizontal transmission using an enhanced green fluorescent protein (egfp) ... | 2016 | 27867767 |
| essential oil composition, antimicrobial and pharmacological activities of lippia sidoides cham. (verbenaceae) from são gonçalo do abaeté, minas gerais, brazil. | lippia sidoides (verbenaceae) is used in brazilian folk medicine as an antiseptic, and it is usually applied topically on skin, mucous membranes, mouth, and throat, or used for vaginal washings. | 0 | 27867267 |
| the dna chaperone hmgb1 potentiates the transcriptional activity of rel1a in the mosquito aedes aegypti. | high mobility group protein 1 (hmgb1) is a non-histone, chromatin-associated nuclear protein that functions in regulating eukaryotic gene expression. we investigated the influence and mechanism of action of aedes aegypti hmgb1 (aahmgb1) on mosquito rel1a-mediated transcription from target gene promoters. the dna-binding domain (rhd) of aarel1a was bacterially expressed and purified, and aahmgb1 dramatically enhanced rhd binding to consensus nf-kb/rel dna response elements. luciferase reporter an ... | 2017 | 27867076 |
| housing improvement: a novel paradigm for urban vector-borne disease control? | 2016 | 27864518 | |
| sarniensine, a mesembrine-type alkaloid isolated from nerine sarniensis, an indigenous south african amaryllidaceae, with larvicidal and adulticidal activities against aedes aegypti. | a new mesembrine-type alkaloid, named sarniensine, was isolated together with tazettine, lycorine, the main alkaloid, and 3-epimacronine from nerine sarniensis, with the last two produced for the first time by this plant. this amaryllidaceae, which is indigenous of south africa, was investigated for its alkaloid content, because the organic extract of its bulbs showed strong larvicidal activity with an lc50 value of 0.008μgμl(-1) against first instar aedes aegypti larvae and with an ld50 value 4 ... | 2017 | 27864138 |
| establishment of aedes aegypti (l.) in mountainous regions in mexico: increasing number of population at risk of mosquito-borne disease and future climate conditions. | the study was conducted in the central region of veracruz mexico, in the metropolitan area of xalapa. it is a mountainous area where aedes aegypti (l.) is not currently endemic. an entomological survey was done along an elevation gradient using the ae. aegypti occurrences at different life cycle stages. seven sites were sampled and a total of 24 mosquito species were recorded: 9 species were found in urban areas, 18 in non-urban areas with remnant vegetation, and 3 occurred in both environments. ... | 2017 | 27863974 |
| assessment of icount software, a precise and fast egg counting tool for the mosquito vector aedes aegypti. | widespread in the tropics, the mosquito aedes aegypti is an important vector of many viruses, posing a significant threat to human health. vector monitoring often requires fecundity estimation by counting eggs laid by female mosquitoes. traditionally, manual data analyses have been used but this requires a lot of effort and is the methods are prone to errors. an easy tool to assess the number of eggs laid would facilitate experimentation and vector control operations. | 2016 | 27863526 |
| analyses of density-dependent effects are needed to understand how and when wolbachia can control dengue vectors. | releases of wolbachia-infected mosquitoes have been shown to be an effective method of controlling aedes aegypti, the main vector of dengue fever, in australia. a study in bmc biology from penelope hancock and others shows that incorporation of density-dependent effects into population models can provide major improvements in understanding how and when the infected populations can become established.see research article: https://bmcbiol.biomedcentral.com/articles/10.1186/s12915-016-0319-5 . | 2016 | 27863487 |
| understanding zika virus. | this article describes what pediatric healthcare professionals should know about zika virus (zikv). | 2017 | 27862959 |
| dibenzo-α-pyrones: a new class of larvicidal metabolites against aedes aegypti from the endophytic fungus hyalodendriella sp. ponipodef12. | in our search for new agrochemicals from endophytic fungi, the crude extract of the endophytic hyalodendriella sp. ponipodef12 associated with the hybrid 'neva' of populus deltoides marsh × p. nigra l. was found to possess larvicidal activity against aedes aegypti. | 2016 | 27862895 |
| epidemiological characteristics of yellow fever in brazil, 2000-2012. | this study aims to describe the epidemiological characteristics of yellow fever in brazil in the period 2000-2012. | 2016 | 27861674 |
| phylosymbiosis: relationships and functional effects of microbial communities across host evolutionary history. | phylosymbiosis was recently proposed to describe the eco-evolutionary pattern, whereby the ecological relatedness of host-associated microbial communities parallels the phylogeny of related host species. here, we test the prevalence of phylosymbiosis and its functional significance under highly controlled conditions by characterizing the microbiota of 24 animal species from four different groups (peromyscus deer mice, drosophila flies, mosquitoes, and nasonia wasps), and we reevaluate the phylos ... | 2016 | 27861590 |
| the driving force for 2014 dengue outbreak in guangdong, china. | dengue fever has rapidly spread in recent decades to become the most globally expansive viral vector-borne disease. in mainland china, a number of dengue outbreaks have been reported since 1978, but the worst epidemic in decades, involving 45230 cases and 76 imported cases, resulting in six deaths in guangdong province, emerged in 2014. reasons for this ongoing surge in dengue, both imported and autochthonous, are currently unclear and demand urgent investigation. here, a seasonally-driven dynam ... | 2016 | 27861514 |
| movement of aedes aegypti following a sugar meal and its implication in the development of control strategies in durán, ecuador. | we evaluated how the presence of sugar sources impacted the distribution of aedes aegypti in different habitats in durán, ecuador. land cover and normalized difference vegetation index maps were used to guide a random point sampling routine to select study grids (30 m × 30 m) in low vegetation (lv) and high vegetation (hv). five individual plants, at one home in the lv and hv grid, were treated with a different colored, non-attractive, 60% sucrose solution to determine mosquito feeding and movem ... | 2016 | 27860016 |
| evaluation of collection methods for culex quinquefasciatus, aedes aegypti, and aedes simpsoni in northeastern tanzania. | in east africa, significant morbidity and mortality are caused by infections spread by culex quinquefasciatus and aedes aegypti. sticky traps have been shown to be effective tools for sampling populations of aedes mosquitoes and have been found to catch cx. quinquefasciatus. thus, they could potentially be used to sample populations of this species. this study compared sticky ovitraps (so) and mosquitraps (mqt) with the cdc gravid trap (cdc-gt) for collection of culex and aedes mosquito populati ... | 2016 | 27860009 |
| in vitro effect of seven essential oils on the reproduction of the cattle tick rhipicephalus microplus. | the acaricidal effect of seven essential oils was examined in vitro against the cattle tick (rhipicephalus microplus). engorged female ticks were manually collected in farms of southern brazil and placed into petri dishes (n = 10) in order to test the following oils: juniper (juniperus communis), palmarosa (cymbopogon martinii), cedar (cedrus atlantica), lemon grass (cymbopogon citratus), ginger (zingiber officinale), geranium (pelargonium graveolens) and bergamot (citrus aurantium var bergamia) ... | 2016 | 27857849 |
| perinatal chikungunya in twins. | we report a case of vertically transmitted chikungunya infection in heterozygous twin neonates presenting as seizures, encephalopathy, midfacial hyperpigmentation, anemia, and thrombocytopenia. this could be considered as a rare cause of neonatal seizure and identification would help in appropriate management. | 0 | 27857791 |
| febrile illness diagnostics and the malaria-industrial complex: a socio-environmental perspective. | global prioritization of single-disease eradication programs over improvements to basic diagnostic capacity in the global south have left the world unprepared for epidemics of chikungunya, ebola, zika, and whatever lies on the horizon. the medical establishment is slowly realizing that in many parts of sub-saharan africa (ssa), particularly urban areas, up to a third of patients suffering from acute fever do not receive a correct diagnosis of their infection. | 2016 | 27855644 |
| wolbachia-based dengue virus inhibition is not tissue-specific in aedes aegypti. | dengue fever, caused by the dengue virus (denv), is now the most common arbovirus transmitted disease globally. one novel approach to control denv is to use the endosymbiotic bacterium, wolbachia pipientis, to limit denv replication inside the primary mosquito vector, aedes aegypti. wolbachia that is naturally present in a range of insects reduces the capacity for viruses, bacteria, parasites and fungi to replicate inside insects. wolbachia's mode of action is not well understood but may involve ... | 2016 | 27855218 |
| screening of fungi for biological control of a triatomine vector of chagas disease: temperature and trypanosome infection as factors. | entomopathogenic fungi have been investigated as an alternative tool for controlling various insects, including triatomine vectors of the protozoan trypanosoma cruzi, the etiological agent of chagas disease. here we tested the pathogenicity and virulence of ten isolates of the fungi metarhizium spp. and beauveria bassiana against rhodnius prolixus and found all of the isolates to be virulent. we used two isolates (urpe-11 metarhizium anisopliae and ent-1 beauveria bassiana) for further screening ... | 2016 | 27855217 |
| zika mosquito vectors: the jury is still out. | after a 40-year hiatus, the international congress of entomology (ice 2016) convened in orlando, florida (september 25-30, 2016). one of the symposia at ice 2016, the zika symposium, covered multiple aspects of the zika epidemic, including epidemiology, sexual transmission, genetic tools for reducing transmission, and particularly vector competence. while there was a consensus among participants that the yellow fever mosquito, aedes aegypti, is a vector of the zika virus, there is growing eviden ... | 2016 | 27853521 |
| yellow fever virus capsid protein is a potent suppressor of rna silencing that binds double-stranded rna. | mosquito-borne flaviviruses, including yellow fever virus (yfv), zika virus (zikv), and west nile virus (wnv), profoundly affect human health. the successful transmission of these viruses to a human host depends on the pathogen's ability to overcome a potentially sterilizing immune response in the vector mosquito. similar to other invertebrate animals and plants, the mosquito's rna silencing pathway comprises its primary antiviral defense. although a diverse range of plant and insect viruses has ... | 2016 | 27849599 |
| the genome of the crustacean parhyale hawaiensis, a model for animal development, regeneration, immunity and lignocellulose digestion. | the amphipod crustacean parhyale hawaiensis is a blossoming model system for studies of developmental mechanisms and more recently regeneration. we have sequenced the genome allowing annotation of all key signaling pathways, transcription factors, and non-coding rnas that will enhance ongoing functional studies. parhyale is a member of the malacostraca clade, which includes crustacean food crop species. we analysed the immunity related genes of parhyale as an important comparative system for the ... | 2016 | 27849518 |
| review of west nile virus circulation and outbreak risk in madagascar: entomological and ornithological perspectives. | west nile fever (wnf) is a zoonotic disease, occurring nearly globally. in madagascar, west nile virus (wnv) was first detected in 1978 from wild birds and the virus is currently distributed across the island, but no epidemic or epizootic period has been recorded. one fatal human case of wnv infection was reported in 2011, suggesting a "tip of the iceberg" phenomenon of a possible wnf epidemic/epizootic on the island. the main objective of this literature-based survey is to review patterns of wn ... | 2016 | 27849515 |
| evolutionarily conserved odorant receptor function questions ecological context of octenol role in mosquitoes. | olfaction is a key insect adaptation to a wide range of habitats. in the last thirty years, the detection of octenol by blood-feeding insects has been primarily understood in the context of animal host-seeking. the recent discovery of a conserved octenol receptor gene in the strictly nectar-feeding elephant mosquito toxorhynchites amboinensis (taor8) suggests a different biological role. here, we show that taor8 is a functional ortholog of its counterparts in blood-feeding mosquitoes displaying ... | 2016 | 27849027 |
| hiv and zika: when will we be able to end these epidemics? | 2016 | 27846847 | |
| repellency and larvicidal activity of essential oils from xylopia laevigata, xylopia frutescens, lippia pedunculosa, and their individual compounds against aedes aegypti linnaeus. | in order to find new alternatives for vector control and personal protection, we evaluated the larvicidal and repellent activity of essentials oils from plants found in the northeast of brazil against aedes aegypti linnaeus mosquitoes. the plants tested include xylopia laevigata, xylopia frutescens, and lippia pedunculosa and their major compounds, piperitenone oxide, and (r)-limonene. the essential oil of l. pedunculosa and its major volatile compounds were shown to be toxic for ae. aegypti lar ... | 2017 | 27844468 |
| trends in clinical trials of dengue vaccine. | dengue is one of the most important vector-borne disease and an increasing problem worldwide because of current globalization trends. roughly, half the world's population lives in dengue endemic countries, and nearly 100 million people are infected annually with dengue. india has the highest burden of the disease with 34% of the global cases. in the context of an expanding and potentially fatal infectious disease without effective prevention or specific treatment, the public health value of a pr ... | 0 | 27843790 |
| anterior ischemic optic neuropathy following dengue fever. | dengue fever is caused by a flavivirus. this infection is endemic in the tropics and warm temperate regions of the world. ocular manifestations of dengue fever include subconjunctival, vitreous, and retinal haemorrhages; posterior uveitis; optic neuritis; and maculopathies, haemorrhage, and oedema. however anterior ischemic optic neuropathy is a rare presentation. optic nerve ischemia most frequently occurs at the optic nerve head, where structural crowding of nerve fibers and reduction of the v ... | 0 | 27843231 |
| wolbachia: the selfish trojan horse in dengue control. | dengue fever has re-emerged as a major public health challenge. of late, several promising attempts have been made to control the disease with limited success. an innovative method of biological control of dengue is the use of the bacterium wolbachia. selected strains of wolbachia have been introduced into aedes aegypti to prevent transmission of dengue viruses by the vector. wolbachia prevents dengue transmission by either directly blocking the virus or by decreasing the lifespan of the vector. ... | 2016 | 27843186 |
| use of transgenic aedes aegypti in brazil: risk perception and assessment. | the ox513a strain of aedes aegypti, which was developed by the british company oxitec, expresses a self-limiting transgene that prevents larvae from developing to adulthood. in april 2014, the brazilian national technical commission on biosafety completed a risk assessment of ox513a and concluded that the strain did not present new biological risks to humans or the environment and could be released in brazil. at that point, brazil became the first country to approve the unconstrained release of ... | 2016 | 27843167 |
| reining in angola's yellow fever outbreak. | rosa moreira tells andréia azevedo soares how angola reined in its worst yellow fever epidemic in 30 years. | 0 | 27843160 |
| distinguishing between zika and spondweni viruses. | 0 | 27843157 | |
| dynamic expression of genes encoding subunits of inward rectifier potassium (kir) channels in the yellow fever mosquito aedes aegypti. | inward rectifier potassium (kir) channels play fundamental roles in neuromuscular, epithelial, and endocrine function in mammals. recent research in insects suggests that kir channels play critical roles in the development, immune function, and excretory physiology of fruit flies and/or mosquitoes. moreover, our group has demonstrated that mosquito kir channels may serve as valuable targets for the development of novel insecticides. here we characterize the molecular expression of 5 mrnas encodi ... | 2017 | 27836744 |
| zika virus epidemic in brazil. i. fatal disease in adults: clinical and laboratorial aspects. | zika virus (zikv) was first detected in brazil in may 2015 and the country experienced an explosive epidemic. however, recent studies indicate that the introduction of zikv occurred in late 2013. cases of microcephaly and deaths associated with zikv infection were identified in brazil in november, 2015. | 2016 | 27835759 |
| plant virus-insect vector interactions: current and potential future research directions. | acquisition and transmission by an insect vector is central to the infection cycle of the majority of plant pathogenic viruses. plant viruses can interact with their insect host in a variety of ways including both non-persistent and circulative transmission; in some cases, the latter involves virus replication in cells of the insect host. replicating viruses can also elicit both innate and specific defense responses in the insect host. a consistent feature is that the interaction of the virus wi ... | 2016 | 27834855 |
| host plant affects morphometric variation of diaphorina citri (hemiptera: liviidae). | the asian citrus psyllid (acp), diaphorina citri kuwayama, is one of the most serious citrus pests worldwide due to its role as vector of huanglongbing or citrus greening disease. while some optimal plant species for acp oviposition and development have been identified, little is known of the influence of host plants on acp size and shape. our goal was to determine how size and shape of acp wing and body size varies when development occurs on different host plants in a controlled rearing environ ... | 2016 | 27833820 |
| effects of periplocoside p from periploca sepium on the midgut transmembrane potential of mythimna separata larvae. | periplocoside p (psp) isolated from the root bark of periploca sepium contains a pregnane glycoside skeleton and possesses high insecticidal properties. preliminary studies indicated that psp disrupts epithelial functions in the midgut of lepidopteran larvae. in the present study, we examined the effects of psp on the apical and basolateral membrane voltages, va and vbl, respectively, of cells from (1) midguts isolated from the larvae of the oriental armyworm mythimna separata that were in vitro ... | 2016 | 27833169 |
| green synthesis of selenium nanoparticles conjugated clausena dentata plant leaf extract and their insecticidal potential against mosquito vectors. | mosquitoes are major vectors for the transmission of many diseases like chikungunya, malaria, dengue, zika, etc. worldwide. in the present study, selenium nanoparticles (senps) were synthesized from clausena dentata and were tested for their larvicidal efficacy against the fourth-instar larvae of anopheles stephensi, aedes aegypti, and culex quinquefasciatus. the synthesized nanoparticles were characterized using uv-vis spectroscopy, fourier transform infrared radiation (ftir) spectroscopy, edax ... | 2016 | 27832715 |
| thoughts around the zika virus crisis. | as a lot of reviews are available on zika virus (zikv), in this short commentary, we will focus on the recent advances and gaps in knowledge regarding our understanding of zikv infections and on the reaction to the "zikv crisis." | 0 | 27832453 |
| temporal and spatial evolution of dengue incidence in brazil, 2001-2012. | in brazil, the incidence of dengue greatly increased in the last two decades and there are several factors impeding the control of the disease. the present study focused on describing the space-time evolution of dengue in brazil from 2001 to 2012 and analyzing the relationship of the reported cases with socio-demographic and environmental factors. | 2016 | 27832129 |
| inducing cold-sensitivity in the frigophilic fly drosophila montana by rnai. | cold acclimation is a critical physiological adaptation for coping with seasonal cold. by increasing their cold tolerance individuals can remain active for longer at the onset of winter and can recover more quickly from a cold shock. in insects, despite many physiological studies, little is known about the genetic basis of cold acclimation. recently, transcriptomic analyses in drosophila virilis and d. montana revealed candidate genes for cold acclimation by identifying genes upregulated during ... | 2016 | 27832122 |
| zika virus may affect the universal two-child policy: a new challenge for china. | 2016 | 27832058 | |
| zika control through the bacterium wolbachia pipientis. | 2016 | 27831765 | |
| cuba: time to expand health in all policies. | the adelaide statement on health in all policies (2010), lays out equity-based principles designed to guide policymakers on incorporating health and well-being components into the development, implementation and evaluation of policy and practice while moving towards shared governance at all levels-local, regional, national and international. special emphasis is placed on cross-sector coordination to achieve policy goals, while improving health and well-being for all.[1] in cuba's case, experienc ... | 2016 | 27829655 |
| does fluoride influence oviposition of anopheles stephensi in stored water habitats in an urban setting? | the physico-chemical characteristics of lentic aquatic habitats greatly influence mosquito species in selecting suitable oviposition sites; immature development, pupation and adult emergence, therefore are considerations for their preferred ecological niche. correlating water quality parameters with mosquito breeding, as well as immature vector density, are useful for vector control operations in identifying and targeting potential breeding habitats. | 2016 | 27829419 |
| role of aedes aegypti (linnaeus) and aedes albopictus (skuse) in local dengue epidemics in taiwan. | aedes mosquitoes in taiwan mainly comprise aedes albopictus and ae. aegypti. however, the species contributing to autochthonous dengue spread and the extent at which it occurs remain unclear. thus, in this study, we spatially analyzed real data to determine spatial features related to local dengue incidence and mosquito density, particularly that of ae. albopictus and ae. aegypti. | 2016 | 27829399 |
| immunization with brugia malayi myosin as heterologous dna prime protein boost induces protective immunity against b. malayi infection in mastomys coucha. | the current control strategies employing chemotherapy with diethylcarbamazine, ivermectin and albendazole have reduced transmission in some filaria-endemic areas, there is growing interest for complementary approaches, such as vaccines especially in light of threat of parasite developing resistance to mainstay drugs. we earlier demonstrated recombinant heavy chain myosin of b. malayi (bm-myo) as a potent vaccine candidate whose efficacy was enhanced by heterologous dna prime/protein boost (myo-p ... | 2016 | 27828973 |
| larval nutritional stress affects vector life history traits and human malaria transmission. | exposure to stress during an insect's larval development can have carry-over effects on adult life history traits and susceptibility to pathogens. we investigated the effects of larval nutritional stress for the first time using field mosquito vectors and malaria parasites. in contrast to previous studies, we show that larval nutritional stress may affect human to mosquito transmission antagonistically: nutritionally deprived larvae showed lower parasite prevalence for only one gametocyte carrie ... | 2016 | 27827429 |
| downregulation of aedes aegypti chromodomain helicase dna binding protein 7/kismet by wolbachia and its effect on dengue virus replication. | dengue virus (denv) is a mosquito-transmitted virus imposing a significant burden on human health around the world. since current control strategies are not sufficient, there is an urgent need to find alternative methods to control denv transmission. it has been demonstrated that introduction of wolbachia pipientis in aedes aegypti mosquitoes can impede denv transmission with the mechanism(s) not fully understood. recently, a number of studies have found the involvement of chromodomain dna bindi ... | 2016 | 27827425 |
| identification and characterization of micrornas expressed in the african malaria vector anopheles funestus life stages using high throughput sequencing. | over the past several years, thousands of micrornas (mirnas) have been identified in the genomes of various insects through cloning and sequencing or even by computational prediction. however, the number of mirnas identified in anopheline species is low and little is known about their role. the mosquito anopheles funestus is one of the dominant malaria vectors in africa, which infects and kills millions of people every year. therefore, small rna molecules isolated from the four life stages (eggs ... | 2016 | 27825380 |
| predicting wolbachia invasion dynamics in aedes aegypti populations using models of density-dependent demographic traits. | arbovirus transmission by the mosquito aedes aegypti can be reduced by the introduction and establishment of the endosymbiotic bacteria wolbachia in wild populations of the vector. wolbachia spreads by increasing the fitness of its hosts relative to uninfected mosquitoes. however, mosquito fitness is also strongly affected by population size through density-dependent competition for limited food resources. we do not understand how this natural variation in fitness affects symbiont spread, which ... | 2016 | 27825343 |
| chikungunya virus infection: an update on joint manifestations and management. | the advent of sophisticated diagnostics has enabled the discovery of previously unknown arthropod-borne viruses like chikungunya. this infection has become increasingly prevalent in the last 10 years across the indian ocean and has been brought to media attention by a recent outbreak in the caribbean. the outbreak has been aided by a drastic rise in air travel, allowing infected individuals to transport the virus to previously unaffected regions. in addition, a recently documented viral mutation ... | 2016 | 27824550 |
| epidemiological characteristics and risk factors of dengue infection in korean travelers. | dengue viral infection has rapidly spread around the world in recent decades. in korea, autochthonous cases of dengue fever have not been confirmed yet. however, imported dengue cases have been increased since 2001. the risk of developing severe dengue in korean has been increased by the accumulation of past-infected persons with residual antibodies to dengue virus and the remarkable growth of traveling to endemic countries in southeast asia. notably, most of imported dengue cases were identifie ... | 0 | 27822922 |
| zika - an emerging global threat. | 2016 | 27822403 | |
| rapid detection strategies for the global threat of zika virus: current state, new hypotheses, and limitations. | the current scenario regarding the widespread zika virus (zikv) has resulted in numerous diagnostic studies, specifically in south america and in locations where there is frequent entry of travelers returning from zikv-affected areas, including pregnant women with or without clinical symptoms of zikv infection. the world health organization, who, announced that millions of cases of zikv are likely to occur in the usa in the near future. this situation has created an alarming public health emerge ... | 2016 | 27822207 |
| afrocolombian ethnicity, a paradoxical protective factor against dengue. | dengue is a priority public health problem. during epidemics in cuba and haiti, ethnic african descendant population had lower risk of dengue, and the ethnic factor was proposed as a protective one. | 2016 | 27821892 |
| microcephaly in north-east brazil: a retrospective study on neonates born between 2012 and 2015. | to assess the number of children born with microcephaly in the state of paraíba, north-east brazil. | 0 | 27821886 |
| measuring haitian children's exposure to chikungunya, dengue and malaria. | to differentiate exposure to the newly introduced chikungunya virus from exposure to endemic dengue virus and other pathogens in haiti. | 2016 | 27821884 |
| how social structures, space, and behaviors shape the spread of infectious diseases using chikungunya as a case study. | whether an individual becomes infected in an infectious disease outbreak depends on many interconnected risk factors, which may relate to characteristics of the individual (e.g., age, sex), his or her close relatives (e.g., household members), or the wider community. studies monitoring individuals in households or schools have helped elucidate the determinants of transmission in small social structures due to advances in statistical modeling; but such an approach has so far largely failed to con ... | 2016 | 27821727 |
| the physical genome mapping of anopheles albimanus corrected scaffold misassemblies and identified interarm rearrangements in genus anopheles. | the genome of the neotropical malaria vector anopheles albimanus was sequenced as part of the 16 anopheles genomes project published in 2015. the draft assembly of this species consisted of 204 scaffolds with an n50 scaffold size of 18.1 mb and a total assembly size of 170.5 mb. it was among the smallest genomes with the longest scaffolds in the 16 anopheles species cluster, making an. albimanus the logical choice for anchoring the genome assembly to chromosomes. in this study, we developed a hi ... | 2017 | 27821634 |
| transcriptome analysis of the midgut of the chinese oak silkworm antheraea pernyi infected with antheraea pernyi nucleopolyhedrovirus. | the antheraea pernyi nucleopolyhedrovirus (apnpv) is an exclusive pathogen of a. pernyi. the intense interactions between apnpv and a. pernyi cause a series of physiological and pathological changes to a. pernyi. however, no detailed report exists regarding the molecular mechanisms underlying the interactions between apnpv and a. pernyi. in this study, four cdna libraries of the a. pernyi midgut, including two apnpv-infected groups and two control groups, were constructed for transcriptomic anal ... | 2016 | 27820844 |
| a cluster-randomized controlled trial to reduce diarrheal disease and dengue entomological risk factors in rural primary schools in colombia. | as many neglected tropical diseases are co-endemic and have common risk factors, integrated control can efficiently reduce disease burden and relieve resource-strained public health budgets. diarrheal diseases and dengue fever are major global health problems sharing common risk factors in water storage containers. where provision of clean water is inadequate, water storage is crucial. fecal contamination of stored water is a common source of diarrheal illness, but stored water also provides bre ... | 2016 | 27820821 |
| the epidemiological characteristics and dynamic transmission of dengue in china, 2013. | there was a dengue epidemic in several regions of china in 2013. no study has explored the dynamics of dengue transmission between different geographical locations with dengue outbreaks in china. the purpose of the study is to analyze the epidemiological characteristics and to explore the dynamic transmission of dengue in china, 2013. | 2016 | 27820815 |
| an evaluation of educational interventions aimed at decreasing aedes aegypti mosquito breeding sites: a systematic review. | 2011 | 27820243 | |
| talen-mediated knock-in via non-homologous end joining in the crustacean daphnia magna. | transcription activator-like effector nucleases (talens) are versatile tools that enable the insertion of dna into different organisms. here, we confirmed talen-mediated knock-in via non-homologous end joining in the crustacean daphnia magna, a model organism for ecological and toxicological genomics. we tested two different talens, ey1 talen and ey2 talen, both of which target the eyeless locus. the donor dna plasmid, harbouring the h2b-gfp reporter gene, was designed to contain both talen targ ... | 2016 | 27819301 |
| the formulation of the essential oil of piper aduncum linnaeus (piperales: piperaceae) increases its efficacy as an insect repellent. | the essential oil (eo) of piper aduncum linnaeus, known as 'sireh lada' to locals malaysian, has the potential to be used as an alternative to synthetic insect repellents such as n,n-diethyl-meta-toluamide. however, the eo's efficacy as a repellent decreases after application due to the high volatility of its active ingredients. a number of studies have showed that optimizing the formulation of plant-based eos can improve their efficacy as repellents. the present study sought to evaluate the eff ... | 2017 | 27819201 |
| mosquito-transmitted viruses - the great brazilian challenge. | arboviruses pose a serious threat to public health worldwide, overloading the healthcare system and causing economic losses. these viruses form a very diverse group, and in brazil, arboviruses belonging to the families flaviviridae and togaviridae are predominant. unfortunately, the number of arboviruses increases in proportion with factors such as deforestation, poor sanitation, climate changes, and introduction of new viruses like chikungunya virus and zika virus. in brazil, dengue is endemic, ... | 2016 | 27818091 |
| resistance to genetic insect control: modelling the effects of space. | genetic insect control, such as self-limiting ridl(2) (release of insects carrying a dominant lethal) technology, is a development of the sterile insect technique which is proposed to suppress wild populations of a number of major agricultural and public health insect pests. this is achieved by mass rearing and releasing male insects that are homozygous for a repressible dominant lethal genetic construct, which causes death in progeny when inherited. the released genetically engineered ('ge') in ... | 2016 | 27816677 |
| magnetic nanoparticles are highly toxic to chloroquine-resistant plasmodium falciparum, dengue virus (den-2), and their mosquito vectors. | a main challenge in parasitology is the development of reliable tools to prevent or treat mosquito-borne diseases. we investigated the toxicity of magnetic nanoparticles (mnp) produced by magnetospirillum gryphiswaldense (strain msr-1) on chloroquine-resistant (cq-r) and sensitive (cq-s) plasmodium falciparum, dengue virus (den-2), and two of their main vectors, anopheles stephensi and aedes aegypti, respectively. mnp were studied by fourier-transform infrared spectroscopy and transmission elect ... | 2017 | 27815736 |
| detection of dengue virus serotypes 1, 2 and 3 in selected regions of kenya: 2011-2014. | dengue fever, a mosquito-borne disease, is associated with illness of varying severity in countries in the tropics and sub tropics. dengue cases continue to be detected more frequently and its geographic range continues to expand. we report the largest documented laboratory confirmed circulation of dengue virus in parts of kenya since 1982. | 2016 | 27814732 |
| one year after the zika virus outbreak in brazil: from hypotheses to evidence. | zika virusis an arbovirus of the flaviviridae family with two major strains, an asian and an african strain. the main vectors involved in the transmission of zika virus are the aedes aegypti and aedes albopictus mosquitoes. despite its identification, discovered in 1947 in the zika forest in uganda, only isolated and sporadic occurrences of human infection were reported within a largely asymptomatic proportion of individuals. the first reported outbreak occurred in 2007 in the yap island, which ... | 2016 | 27812646 |
| pyriproxyfen and the microcephaly epidemic in brazil - an ecological approach to explore the hypothesis of their association. | the microcephaly epidemic in brazil generated intense debate regarding its causality, and one hypothesised cause of this epidemic, now recognised as congenital zika virus syndrome, was the treatment of drinking water tanks with pyriproxyfen to control aedes aegypti larvae. we present the results of a geographical analysis of the association between the prevalence of microcephaly confirmed by fenton growth charts and the type of larvicide used in the municipalities that were home to the mothers o ... | 2016 | 27812601 |
| in silico study on anti-chikungunya virus activity of hesperetin. | the re-emerging, aedes spp. transmitted chikungunya virus (chikv) has recently caused large outbreaks in a wide geographical distribution of the world including countries in europe and america. though fatalities associated with this self-remitting disease were rarely reported, quality of patients' lives have been severely diminished by polyarthralgia recurrence. neither effective antiviral treatment nor vaccines are available for chikv. our previous in vitro screening showed that hesperetin, a b ... | 2016 | 27812412 |
| mosquito populations dynamics associated with climate variations. | mosquitoes are responsible for the transmission of numerous serious pathogens. members of the aedes and culex genera, which include many important vectors of mosquito-borne diseases, are highly invasive and adapted to man-made environments. they are spread around the world involuntarily by humans and are highly adapted to urbanized environments, where they are exposed to climate-related abundance drivers. we investigated culicidae fauna in two urban parks in the city of são paulo to analyze the ... | 2017 | 27810426 |
| low sensitivity of the tourniquet test for differential diagnosis of dengue: an analysis of 28,000 trials in patients. | the aim of this study was to evaluate the utility of the tourniquet test (tt) for dengue diagnosing. to our knowledge, no previous study with such a large sample, of this duration, with as many laboratory methods referenced, or relating the results of the tt to the 2009 who classification of severity has been conducted thus far. | 2016 | 27809813 |
| transcriptomic data from panarthropods shed new light on the evolution of insulator binding proteins in insects : insect insulator proteins. | body plan development in multi-cellular organisms is largely determined by homeotic genes. expression of homeotic genes, in turn, is partially regulated by insulator binding proteins (ibps). while only a few enhancer blocking ibps have been identified in vertebrates, the common fruit fly drosophila melanogaster harbors at least twelve different enhancer blocking ibps. we screened recently compiled insect transcriptomes from the 1kite project and genomic and transcriptomic data from public databa ... | 2016 | 27809783 |
| sodium channel mutations and pyrethroid resistance in aedes aegypti. | pyrethroid insecticides are widely used to control insect pests and human disease vectors. voltage-gated sodium channels are the primary targets of pyrethroid insecticides. mutations in the sodium channel have been shown to be responsible for pyrethroid resistance, known as knockdown resistance (kdr), in various insects including mosquitoes. in aedes aegypti mosquitoes, the principal urban vectors of dengue, zika, and yellow fever viruses, multiple single nucleotide polymorphisms in the sodium c ... | 2016 | 27809228 |
| genome investigations of vector competence in aedes aegypti to inform novel arbovirus disease control approaches. | dengue (denv), yellow fever, chikungunya, and zika virus transmission to humans by a mosquito host is confounded by both intrinsic and extrinsic variables. besides virulence factors of the individual arboviruses, likelihood of virus transmission is subject to variability in the genome of the primary mosquito vector, aedes aegypti. the "vectorial capacity" of a. aegypti varies depending upon its density, biting rate, and survival rate, as well as its intrinsic ability to acquire, host and transmi ... | 2016 | 27809220 |
| perplexing metabolomes in fungal-insect trophic interactions: a terra incognita of mycobiocontrol mechanisms. | the trophic interactions of entomopathogenic fungi in different ecological niches viz., soil, plants, or insect themselves are effectively regulated by their maneuvered metabolomes and the plethora of metabotypes. in this article, we discuss a holistic framework of co-evolutionary metabolomes and metabotypes to model the interactions of biocontrol fungi especially with mycosed insects. conventionally, the studies involving fungal biocontrol mechanisms are reported in the context of much aggrandi ... | 2016 | 27807434 |
| recombinase polymerase amplification assay for rapid detection of lumpy skin disease virus. | lumpy skin disease virus (lsdv) is a capripoxvirus infecting cattle and buffalos. lumpy skin disease (lsd) leads to significant economic losses due to hide damage, reduction of milk production, mastitis, infertility and mortalities (10 %). early detection of the virus is crucial to start appropriate outbreak control measures. veterinarians rely on the presence of the characteristic clinical signs of lsd. laboratory diagnostics including virus isolation, sequencing and real-time polymerase chain ... | 2016 | 27806722 |