Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| group b wolbachia strain-dependent inhibition of arboviruses. | mosquito-borne viruses, including zika virus (zikv) and dengue virus (denv), are global threats that continue to infect millions annually. historically, efforts to combat the spread of these diseases have sought to eradicate the mosquito population. this has had limited success. recent efforts to combat the spread of these diseases have targeted the mosquito population and the mosquito's ability to transmit viruses by altering the mosquito's microbiome. the introduction of particular strains of ... | 2018 | 29297702 |
| zika virus infection modulates the bacterial diversity associated with aedes aegypti as revealed by metagenomic analysis. | zika is a re-emerging infection that has been considered a major threat to global public health. currently at least 100 countries are at risk of zika virus (zikv) transmission. aedes aegypti is the main mosquito vector in the americas. this vector is exposed to, and interacts symbiotically with a variety of microorganisms in its environment, which may result in the formation of a lifetime association. here, the unknown effect that zikv exerts on the dynamic bacterial community harbored by this m ... | 2018 | 29293631 |
| insecticide treated curtains and residual insecticide treatment to control aedes aegypti: an acceptability study in santiago de cuba. | within the context of a field trial conducted by the cuban vector control program (aacp), we assessed acceptability of insecticide-treated curtains (itcs) and residual insecticide treatment (rit) with deltamethrin by the community. we also assessed the potential influence of interviewees' risk perceptions for getting dengue and disease severity. | 2018 | 29293501 |
| n-substituted methyl maleamates as larvicidal compounds against aedes aegypti (diptera: culicidae). | severe human arboviral diseases can be transmitted by the mosquito aedes aegypti (l.), including dengue, chikungunya, zika, and yellow fever. the use of larvicides in containers that can result as potential breeding places and cannot be eliminated is the main alternative in control programs. however, their continuous and widespread use caused an increase in insecticide-resistant populations of this mosquito. the aim of this study was to evaluate the effect of three n-substituted methyl maleamate ... | 2018 | 29290037 |
| [dengue, zika, chikungunya and the development of vaccines]. | dengue (denv), zika (zikv) and chikungunya (chikv), three arbovirosis transmitted by aedes mosquitoes, have spread in recent decades in humid tropical and subtropical zones. dengue is epidemic in subtropical areas of argentina. denv infection confers lasting immunity against the infecting serotype but increases the risk of serious disease upon reinfection by any of the other three. the recombinant tetravalent vaccine dengvaxia® prevents severe dengue and hospitalization in seropositive subjects. ... | 2018 | 29360072 |
| cytoplasmic glutamine synthetase gene expression regulates larval development in bactrocera dorsalis (hendel). | in insects, glutamine synthetase (gs), a key enzyme in the synthesis of glutamine, has been reported to be associated with embryonic development, heat shock response, and fecundity regulation. however, little is known about the influence of gs on postembryonic development. in this study, we demonstrate that blocking the activity of gs in the oriental fruit fly (bactrocera dorsalis) with use of a gs-specific inhibitor (l-methionine s-sulfoximine), led to a significant delay in larval development, ... | 2018 | 29359358 |
| the wolbachia strain wau provides highly efficient virus transmission blocking in aedes aegypti. | introduced transinfections of the inherited bacteria wolbachia can inhibit transmission of viruses by aedes mosquitoes, and in ae. aegypti are now being deployed for dengue control in a number of countries. only three wolbachia strains from the large number that exist in nature have to date been introduced and characterized in this species. here novel ae. aegypti transinfections were generated using the walba and wau strains. in its native ae. albopictus, walba is maintained at lower density tha ... | 2018 | 29370307 |
| environmentally benign nanometric neem-laced urea emulsion for controlling mosquito population in environment. | the increasing risk of vector-borne diseases and the environmental pollution in the day-to-day life due to the usage of the conventional pesticides makes the role of nanotechnology to come into the action. the current study deals with one of the applications of nanotechnology through the formulation of neem urea nanoemulsion (nune). nune was formulated using neem oil, tween 20, and urea using the microfluidization method. prior to the development of nanoemulsion, the ratio of oil/surfactant/urea ... | 2018 | 29116538 |
| functional characterization of the dual allatostatin-a receptors in mosquitoes. | the neuropeptide allatostatin-a (asta) and its cognate receptors (astars) are involved in the modulation of feeding behavior, which in hematophagous insects includes the regulation of the disease vector-related behaviors, host seeking and blood feeding. in mosquitoes and other dipterans, there are two copies of astar, contrasting with the single copy found in other insects. in this study, we identified and cloned the dual astar system of two important disease vectors aedes aegypti and culex quin ... | 2018 | 29103918 |
| genome sequence of a novel strain of a phasi charoen-like virus identified in zhanjiang, china. | here, we report the genome sequence of a novel strain of a phasi charoen-like virus, isolated from aedes aegypti mosquitoes caught in zhanjiang province of china. phylogenetic analysis suggested that this virus belongs to a new genus, goukovirus, in the family bunyaviridae this is the first reported genome sequence of a phasi charoen-like virus identified in china. | 2018 | 29326198 |
| behavior of detoxifying enzymes of aedes aegypti exposed to girgensohnine alkaloid analog and cymbopogon flexuosus essential oil. | because mosquito control depend on the use of commercial insecticides and resistance has been described in some of them, there is a need to explore new molecules no resistant. in vivo effects of girgensohnine analog 2-(3,4-dimethoxyphenyl)-2-(piperidin-1-yl)acetonitrile dppa and cymbopogon flexuosus essential oil cfeo, on the detoxifying enzymes acetylcholinesterase (ache), glutathione-s-transferase (gst), nonspecific esterases (α- and β-), mixed function oxidases (mfo) and p-npa esterases were ... | 2018 | 29129589 |
| fine-scale landscape genomics helps explain the slow spatial spread of wolbachia through the aedes aegypti population in cairns, australia. | the endosymbiotic bacterium wolbachia suppresses the capacity for arbovirus transmission in the mosquito aedes aegypti, and can spread spatially through wild mosquito populations following local introductions. recent introductions in cairns, australia have demonstrated slower than expected spatial spread. potential reasons for this include: (i) barriers to ae. aegypti dispersal; (ii) higher incidence of long-range dispersal; and (iii) intergenerational loss of wolbachia. we investigated these th ... | 2018 | 29358725 |
| current concerns and perspectives on zika virus co-infection with arboviruses and hiv. | dissemination of vector-borne viruses, such as zika virus (zikv), in tropical and sub-tropical regions has a complicated impact on the immunopathogenesis of other endemic viruses such as dengue virus (denv), chikungunya virus (chikv) and human immunodeficiency virus (hiv). the consequences of the possible co-infections with these viruses have specifically shown significant impact on the treatment and vaccination strategies. zikv is a mosquito-borne flavivirus from african and asian lineages that ... | 2018 | 29352633 |
| aerial ulv control of aedes aegypti with naled (dibrom) inside simulated rural village and urban cryptic habitats. | we conducted aerial fixed wing ultra low volume (ulv) spray trials with naled to investigate penetration of exposed and simulated cryptic habitat within opened buildings, partially sealed buildings, and outdoor locations targeting sentinel adult aedes aegypti mosquitoes in north central florida. mortality was observed in open and closed buildings and outdoors, even in mosquitoes placed in cryptic habitats. observations on the impact of building type, mosquito exposure method such as placement in ... | 2018 | 29352307 |
| reduction in musca domestica fecundity by dsrna-mediated gene knockdown. | house flies (musca domestica) are worldwide agricultural pests with estimated control costs at $375 million annually in the u.s. non-target effects and widespread resistance challenge the efficacy of traditional chemical control. double stranded rna (dsrna) has been suggested as a biopesticide for m. domestica but a phenotypic response due to the induction of the rnai pathway has not been demonstrated in adults. in this study female house flies were injected with dsrna targeting actin-5c or ribo ... | 2018 | 29342168 |
| zika virus in salivary glands of five different species of wild-caught mosquitoes from mexico. | zika virus (zikv) is a mosquito-borne pathogen, and aedes aegypti has been identified as the main vector of the disease. other mosquito species in the aedes and culex genera have been suggested to have the potential for being competent vectors based on experimental exposition of mosquitoes to an infectious blood meal containing zikv. here, we report the isolation in cell culture of zikv obtained from different body parts of wild-caught female mosquitoes (ae. aegypti, ae. vexans, cx. quinquefasci ... | 2018 | 29339746 |
| wolbachia-induced transcription factor gata4 suppresses ovary-specific genes blastoderm-specific protein 25d and imaginal disc growth factor. | the endosymbiotic bacterium wolbachia infects a wide array of insect hosts and has been implicated in a range of biological modifications as a consequence of its infection. previously, it was shown that the transcription factor gata4 was significantly induced in wolbachia wmelpop-cla strain infected aedes aegypti whole mosquitoes and cells. here, we provide evidence that this induction also occurs in mosquito ovaries where the ovary-specific genes blastoderm-specific protein 25d (bsg25d) and ima ... | 2018 | 29336504 |
| vibrational properties of bulk boric acid 2a and 3t polymorphs and their two-dimensional layers: measurements and density functional theory calculations. | boric acid (h3bo3) is being used effectively nowadays in traps/baits for the management of aedes aegypti l. and aedes albopictus skuse species of mosquitoes, which are the main spreading vectors worldwide for diseases such as malaria, dengue, and zika. previously, we published results on the structural, electronic, and optical properties of its molecular triclinic h3bo3-2a and trigonal h3bo3-3t polymorphs within the framework of density functional theory (dft). because of the renewed importance ... | 2018 | 29328646 |
| the discovery of arthropod-specific viruses in hematophagous arthropods: an open door to understanding the mechanisms of arbovirus and arthropod evolution? | the discovery of an odd virus from hematophagous arthropods 40 years ago by stollar and thomas described cell fusing agent virus in cells derived from aedes aegypti mosquitoes. then came the report of kamiti river virus from ae. macintoshi in 1999, followed by worldwide reports of the discovery of other viruses of mosquitoes, ticks, and midges that replicate only in arthropods and not in vertebrates or in vertebrate cells. these viruses (now totaling at least 64 published) have genomes analogous ... | 2018 | 29324047 |
| dengue hemorrhagic fever virus in saudi arabia: a review. | dengue fever is a global disease with a spectrum of clinical manifestation ranging from mild febrile disease to a severe disease in the form of dengue hemorrhagic fever and dengue shock syndrome. dengue virus is one viral hemorrhagic fever that exists in the kingdom of saudi arabia in addition to alkhurma (alkhurma) hemorrhagic fever, chikungunya virus, crimean-congo hemorrhagic fever, and rift valley fever. the disease is limited to the western and south-western regions of saudi arabia, where a ... | 2018 | 29319426 |
| qsar analysis of plant-derived compounds with larvicidal activity against zika aedes aegypti (diptera: culicidae) vector using freely available descriptors. | we develop a qsar model for predicting the larvicidal activity of 60 plant-derived molecules against aedes aegypti l. (diptera: culicidae), vector of several diseases such as, dengue, yellow fever, chikungunya and zika virus. the balanced subsets method (bsm) based on k-means cluster analysis (k-mca) is employed to split the data set. the replacement method (rm) variable subset selection technique coupled with multivariable linear regression (mlr) proves to be successful for exploring 18,326 mol ... | 2018 | 29314584 |
| krüppel homologue 1 acts as a repressor and an activator in the transcriptional response to juvenile hormone in adult mosquitoes. | krüppel homologue 1 (kr-h1) is a zinc finger transcription factor that is upregulated in insects by juvenile hormone (jh) in metamorphosis and adult reproduction. the molecular function of kr-h1 in reproduction remains largely unknown. here we report that aakr-h1 functions as an important transcription regulator in adult female aedes aegypti mosquitoes. the amount of aakr-h1 protein increases with rising jh levels after adult emergence, reaches its peak at 48 h after eclosion, then decreases gra ... | 2018 | 29314423 |
| aristololactam derivatives from the fruits of aristolochia contorta bunge. | three new aristololactam derivatives, aristololactam w-y (1-3), and three known compounds (4-6) were isolated from the fruits of aristolochia contorta bunge. compounds 1 and 2 represent the first example of an n-ch2och3 aristololactam derivative from natural products. their structures were elucidated by 1d/2d nmr and hresims spectra. all of the isolated compounds were evaluated for their insecticidal activity against 4th instar larvae of aedes aegypti. compound 4 displayed insecticidal activity ... | 2018 | 29313366 |
| the genomes of four meyerozymacaribbica isolates and novel insights into the meyerozymaguilliermondii species complex. | yeasts of the meyerozyma guilliermondii species complex are widespread in nature and can be isolated from a variety of sources, from the environment to arthropods to hospital patients. to date, the species complex comprises the thoroughly studied and versatile m. guilliermondii, and the hard to distinguish m. caribbica, and candida carpophila here we report the whole-genome sequencing and de novo assembly of four m. caribbica isolates, identified with the most recent molecular techniques, derive ... | 2018 | 29311113 |
| critical low temperature for the survival of aedes aegypti in taiwan. | taiwan is geographically located in a region that spans both tropical and subtropical climates (22-25°n and 120-122°e). the taiwan centers for disease control have found that the ecological habitat of aedes aegypti appears only south of 23.5°n. low temperatures may contribute to this particular habitat distribution of ae. aegypti under the influence of the east asian winter monsoon. however, the threshold condition related to critically low temperatures remains unclear because of the lack of lar ... | 2018 | 29310716 |
| multifaceted functional implications of an endogenously expressed trna fragment in the vector mosquito aedes aegypti. | the mosquito aedes aegypti is the primary vector of human arboviral diseases caused by dengue, chikungunya and zika viruses. many studies have shown the potential roles of small rna molecules such as microrna, small interfering rna and piwi-interacting rna in vector mosquitoes. the function of trna fragments (trf), the newly discovered class of small rnas, in mosquitoes is not known. in this study, we show that specific trfs are expressed in significantly differential manner between males and fe ... | 2018 | 29364883 |
| mosquito vector-associated microbiota: metabarcoding bacteria and eukaryotic symbionts across habitat types in thailand endemic for dengue and other arthropod-borne diseases. | vector-borne diseases are a major health burden, yet factors affecting their spread are only partially understood. for example, microbial symbionts can impact mosquito reproduction, survival, and vectorial capacity, and hence affect disease transmission. nonetheless, current knowledge of mosquito-associated microbial communities is limited. to characterize the bacterial and eukaryotic microbial communities of multiple vector species collected from different habitat types in disease endemic areas ... | 2018 | 29375803 |
| influence of location and distance of biogents sentinel™ traps from human-occupied experimental huts on aedes aegypti recapture and entry into huts. | a mark-release-recapture study was conducted to refine the "push-pull" strategy for controlling the dengue, chikungunya, and zika virus vector aedes aegypti in a peridomestic environment by determining optimal locations and distances from human-occupied experimental huts for placement of the "pull" component (biogents sentinel™ [bgs] traps) to maximize the capture of mosquitoes. the bgs traps were placed at portals of entry (windows or doors) or corners of the experimental huts and at varying di ... | 2018 | 31442172 |
| habitat characteristics for immature stages of aedes aegypti in zanzibar city, tanzania. | aedesaegypti is the main vector for dengue, chikungunya, yellow fever, zika, and other arboviruses of public health importance. the presence of ae. aegypti has never been systematically assessed in zanzibar, including its preferred larval habitats. in 2016 we conducted a cross-sectional entomological survey to describe the preferred larval habitats of ae. aegypti in zanzibar city, the main urban area of the zanzibar archipelago. the surveys for container habitats were conducted for a 17-wk perio ... | 2018 | 31442169 |
| rapid immobilization of adult aedes aegypti caused by plant essential oils at sublethal concentrations. | many synthetic insecticides cause immobilization in insect pests after they are exposed. this immobilization or knockdown is an important feature of intoxication that contributes to the abatement of pest insect populations, while preventing vectors of disease from biting and spreading pathogenic organisms to susceptible individuals. we have previously demonstrated that certain plant essential oils rapidly immobilize adult female mosquitoes that have been exposed via topical application. to furth ... | 2018 | 31442168 |
| entomological investigation of aedes aegypti in neighborhoods with confirmed human arbovirus infection in puerto rico. | the exotic arboviruses chikungunya (chikv) and zika (zikv) recently caused large outbreaks and continue to circulate in puerto rico, prompting entomological investigations at 9 locations with confirmed chikv- or zikv-infected human cases. adult mosquitoes were collected using the centers for disease control and prevention autocidal gravid ovitraps over a 14-day period at each site. mean female aedes aegypti captured per trap-week ranged from 13.47 per trap-week to 1.27 per trap-week. arbovirus-p ... | 2018 | 31442166 |
| repellent activity of carrot seed essential oil and its pure compound, carotol, against mosquitoes. | in our natural products screening program for mosquitoes, carrot seed essential oil showed high repellency. the gas chromatography (gc)/flame ionization detector and gc/mass spectrometry analysis of the essential oil revealed the presence of 47 compounds. carotol was more than 75% w/w, followed by muurolene (4.86%), (z)-β-farnesene (2.9%), and diepicedrene (1.1%). systematic bioassay-guided fractionation of the essential oil was performed to identify active repellent compounds. in both klun and ... | 2018 | 31442148 |
| origin of aedes aegypti in clark county, nevada. | aedesaegypti is the primary vector for serious diseases, including those caused by chikungunya, dengue, and zika viruses. in 2017, the southern nevada health district first detected this invasive species in clark county, nv, including in the city of las vegas. we analyzed ae. aegypti from the city of north las vegas to determine the likely source of the invasion. we genotyped a sample of ae. aegypti at 12 highly variable microsatellites and analyzed the data in reference to published data from 2 ... | 2018 | 31442147 |
| scaled deployment of wolbachia to protect the community from dengue and other aedes transmitted arboviruses. | background: a number of new technologies are under development for the control of mosquito transmitted viruses, such as dengue, chikungunya and zika that all require the release of modified mosquitoes into the environment. none of these technologies has been able to demonstrate evidence that they can be implemented at a scale beyond small pilots. here we report the first successful citywide scaled deployment of wolbachia in the northern australian city of townsville. methods: the wmel strain of ... | 2018 | 30596205 |
| molecular basis for arbovirus transmission by aedes aegypti mosquitoes. | mosquitoes are considered the most important vectors for the transmission of pathogens to humans. aedes aegypti is a unique species, not only by its highly anthropophilic and peridomestic habits but also because it can transmit an important variety of pathogenic viruses. examples are dengue, yellow fever, chikungunya, zika, and mayaro viruses. after ingesting viremic blood, a wide range of mechanisms are activated in the mosquito to counteract viral infection. nevertheless, these arboviruses pos ... | 2018 | 31082816 |
| green synthesis of copper oxide nanoparticles and mosquito larvicidal activity against dengue, zika and chikungunya causing vector aedes aegypti. | in the present study, high purity copper oxide nanoparticles (nps) were synthesised using tridax procumbens leaf extract. green syntheses of nano-mosquitocides rely on plant compounds as reducing and stabilising agents. copper oxide nps were characterised using x-ray diffraction (xrd) analysis, fourier transform infrared (ft-ir), field-emission scanning electron microscopy with energy dispersive spectroscopy, ultraviolet-visible spectrophotometry and fluorescence spectroscopy. xrd studies of the ... | 2018 | 30964011 |
| wing geometry analysis of aedes aegypti (diptera, culicidae), a dengue virus vector, from multiple geographical locations of samut songkhram, thailand. | dengue haemorrhagic fever (dhf) is a mosquito-borne disease and remains a major public health problem, especially in tropical and temperate countries. studying wing morphometric of aedes aegypti as a mosquito vector of dhf can help to better understand biological process of the mosquito adaptation to the environment. we aimed to study the geometric morphometric of ae. aegypti from multiple geographical areas. | 2018 | 30918904 |
| effects of multiple transmission pathways on zika dynamics. | although the zika virus is transmitted to humans primarily through the bite of infected female aedes aegypti mosquitoes, it can also be sexually and vertically transmitted within both populations. in this study, we develop a new mathematical model of the zika virus which incorporates sexual transmission in humans and mosquitos, vertical transmission in mosquitos, and mosquito to human transmission through bites. analysis of this deterministic model shows that the secondary transmission routes of ... | 2018 | 30839920 |
| supersensitive odorant receptor underscores pleiotropic roles of indoles in mosquito ecology. | mosquitoes exhibit highly diverse and fast evolving odorant receptors (ors). the indole-sensitive or gene clade, comprised of or2 and or10 is a notable exception on account of its conservation in both mosquito subfamilies. this group of paralogous genes exhibits a complex developmental expression pattern in aedes aegypti: aaegor2 is expressed in both adults and larvae, aaegor10 is adult-specific and a third member named aaegor9 is larva-specific. or2 and or10 have been deorphanized and are selec ... | 2018 | 30733668 |
| insecticidal and repellent properties of novel trifluoromethylphenyl amides ii. | this project focused on the design, synthesis, and testing of trifluoromethylphenyl amides (tfmpas) as potential mosquitocides and repellents. fourteen compounds were evaluated for toxicity against larvae and adults of aedes aegypti. several compounds were toxic against aedes aegypti (larval, adult and feeding bioassays) and drosophila melanogaster (glass-surface contact assay), but were much less toxic than fipronil, with toxicity ratios ranging from 100-fold in the larval assay to 100,000-fold ... | 2018 | 30704711 |
| toxicity, mode of action, and synergist potential of flonicamid against mosquitoes. | the present study focused on the toxicity of the aphid anti-feedant flonicamid and its main metabolite, 4-trifluoromethylnicotinamide (tfna-am) to aedes aegypti and anopheles gambiae mosquitoes. the compounds were toxic to both species via topical application, resulting in un-coordinated locomotion and leg splaying, with a favorable an. gambiae ld50 value of 35 ng/mg for tfna-am, but no significant lethality to ae. aegypti at 10 μg/female. there was mild cross resistance in the akron-kdr (akdr) ... | 2018 | 30704710 |
| use of chemical probes to explore the toxicological potential of the k+/cl- cotransporter (kcc) as a novel insecticide target to control the primary vector of dengue and zika virus, aedes aegypti. | the majority of commercialized insecticides target the insect nervous system and therefore, neural proteins are well-validated targets for insecticide development. considering that only a few neural targets are exploited for insecticidal action and the development of insecticide resistance has reduced the efficacy of current insecticidal classes, we sought to test the toxicological potential of the potassium-chloride cotransporter (kcc). in mammals, kcc proteins have seminal roles in shaping gab ... | 2018 | 30704707 |
| current status of aedes aegypti insecticide resistance development from banjarmasin, kalimantan, indonesia. | aedes aegypti represents the principal vector of many arthropod-borne diseases in tropical areas worldwide. since mosquito control strategies are mainly based on use of insecticides, resistance development can be expected to occur in frequently exposed ae. aegypti populations. surveillance on resistance development as well as testing of insecticide susceptibility is therefore mandatory and needs further attention by national/international public health authorities. in accordance, we here conduct ... | 2018 | 30671445 |
| [communication for arboviral disease prevention: tailoring paho initiatives to the cuban contextcomunicação para prevenção de arboviroses: adequação das iniciativas da opas ao contexto cubano]. | the purpose of this paper is to describe the opportunities and challenges of training processes in the coordination of regional and national communication initiatives for arboviral disease prevention, using the lessons learned in the cuban context as an example. in february 2016 and december 2017, professional staff from the pedro kourí institute of tropical medicine attended workshops for strengthening communication capacities for arboviral disease prevention in primary health care settings thr ... | 2018 | 31093174 |
| zebrafish embryo toxicity of a binary mixture of pyrethroid insecticides: d-tetramethrin and cyphenothrin. | pesguard fg161™, a mixture of d-tetramethrin and cyphenothrin (1:3 ratio), is extensively used to achieve rapid control of adult dengue vector, aedes aegypti, during the disease outbreaks. both d-tetramethrin and cyphenothrin are synthetic pyrethroids that are known to have adverse effects on non-mammalian organisms such as fish. the present study intended to use zebrafish embryo toxicity model to investigate the toxic effect of the above binary mixture on fish. particularly, zebrafish embryo to ... | 2018 | 30687404 |
| zika virus infection produces a reduction on aedes aegypti lifespan but no effects on mosquito fecundity and oviposition success. | a zika virus (zikv) pandemic started soon after the first autochthonous cases in latin america. although aedes aegypti is pointed as the primary vector in latin america, little is known about the fitness cost due to zikv infection. we investigated the effects of zikv infection on the life-history traits of ae. aegypti females collected in three districts of rio de janeiro, brazil (barra, deodoro, and porto), equidistant ~25 km each other. aedes aegypti mosquitoes were classified into infected (a ... | 2018 | 30619118 |
| geographical distribution of aedes aegypti and aedes albopictus (diptera: culicidae) and genetic diversity of invading population of ae. albopictus in the republic of the congo. | background: the arbovirus vector, aedes albopictus, originating from asia, has recently invaded african countries, including the republic of the congo, where it was associated with a chikungunya outbreak. up until now, little was known about its distribution in relation to the native aedes aegypti and how the invasion will modify the epidemiology of arboviral diseases. here, we assessed the current distribution of ae. albopictus and ae. aegypti in the republic of the congo and explored the genet ... | 2018 | 30175244 |
| larvicidal potential of five selected dragonfly nymphs in sri lanka over aedes aegypti (linnaeus) larvae under laboratory settings. | limitations in breeding source reduction practices, development of insecticide resistance in mosquitoes, and ill effects of chemical controlling methods on human and ecosystem health have motivated sri lankan authorities working for dengue control to seek for alternative, ecofriendly, and sustainable approaches for controlling of aedes vectors, to manage dengue epidemics. the present study attempted to investigate the predation efficiency of locally available dragonfly nymphs over aedes aegypti ... | 2018 | 30627580 |
| mapping the global potential distributions of two arboviral vectors aedes aegypti and ae. albopictus under changing climate. | aedes aegypti and ae. albopictus are the primary vectors that transmit several arboviral diseases, including dengue, chikungunya, and zika. the world is presently experiencing a series of outbreaks of these diseases, so, we still require to better understand the current distributions and possible future shifts of their vectors for successful surveillance and control programs. few studies assessed the influences of climate change on the spatial distributional patterns and abundance of these impor ... | 2018 | 30596764 |
| long-term exposure of aedes aegypti to bacillus thuringiensis svar. israelensis did not involve altered susceptibility to this microbial larvicide or to other control agents. | bacillus thuringiensis svar. israelensis (bti) is an effective and safe biolarvicide to control aedes aegypti. its mode of action based on four protoxins disfavors resistance; however, control in endemic areas that display high mosquito infestation throughout the year requires continuous larvicide applications, which imposes a strong selection pressure. therefore, this study aimed to investigate the effects of an intensive bti exposure on an ae. aegypti strain (recbti), regarding its susceptibil ... | 2018 | 30594214 |
| biochemical effects of petroselinum crispum (umbellifereae) essential oil on the pyrethroid resistant strains of aedes aegypti (diptera: culicidae). | in ongoing screening research for edible plants, petroselinum crispum essential oil was considered as a potential bioinsecticide with proven antimosquito activity against both the pyrethroid susceptible and resistant strains of aedes aegypti. due to the comparative mosquitocidal efficacy on these mosquitoes, this plant essential oil is promoted as an attractive candidate for further study in monitoring resistance of mosquito vectors. therefore, the aim of this study was to evaluate the impact of ... | 2018 | 30586929 |
| a comparative study of energy contents in mosquito vectors of malaria and dengue prevailing in jodhpur city (thar desert) of rajasthan state, india. | transmission of malaria and dengue in the desert part of india is mainly caused by anopheles stephensi and aedes aegypti respectively. the maintenance and transmission of the pathogens that cause malaria and dengue are dependent on the physiology of the mosquito vectors. we aimed to measure the energy contents in the mosquitoes transmitting malaria and dengue in the desert part of the country. | 2018 | 30584552 |
| combined sterile insect technique and incompatible insect technique: sex separation and quality of sterile aedes aegypti male mosquitoes released in a pilot population suppression trial in thailand. | the sterile insect technique (sit), which is based on irradiation-induced sterility, and incompatible insect technique (iit), which is based on wolbachia-induced cytoplasmic incompatibility (a kind of male sterility), have been used as alternative methods to reduce mosquito vector populations. both methods require the release of males to reduce fertile females and suppress the number of natural populations. different techniques of sex separation to obtain only males have been investigated previo ... | 2018 | 30583749 |
| molecular tools to create new strains for mosquito sexing and vector control. | vector control programs based on population reduction by matings with mass-released sterile insects require the release of only male mosquitoes, as the release of females, even if sterile, would increase the number of biting and potentially disease-transmitting individuals. while small-scale releases demonstrated the applicability of sterile males releases to control the yellow fever mosquito aedes aegypti, large-scale programs for mosquitoes are currently prevented by the lack of efficient sexi ... | 2018 | 30583736 |
| functional analysis of the promoter of an early zygotic gene klc2 in aedes aegypti. | aedes aegypti is an important mosquito vector that transmits arboviruses that cause devastating diseases including zika, dengue fever, yellow fever and chikungunya. improved understanding of gene regulation in the early development of ae. aegypti will facilitate genetic studies and help the development of novel control strategies of this important disease vector. | 2018 | 30583735 |
| sex determination and aedes population control. | the global economic cost of aedes-borne diseases, such as dengue, is estimated to be in the billions of dollars annually. in this scenario, a sustained vector control strategy is the only alternative to control dengue, as well as other diseases transmitted by aedes, including zika and chikungunya. the use of transgenic mosquitoes is a promising weapon in the improvement of approaches currently applied in aedes aegypti control. field trials using genetically modified mosquitoes for population con ... | 2018 | 30583731 |
| pure early zygotic genes in the asian malaria mosquito anopheles stephensi. | the asian malaria mosquito, anopheles stephensi, is a major urban malaria vector in the middle east and on the indian subcontinent. early zygotic transcription, which marks the maternal-to-zygotic transition, has not been systematically studied in an. stephensi or any other anopheles mosquitoes. improved understanding of early embryonic gene expression in an. stephensi will facilitate genetic and evolutionary studies and help with the development of novel control strategies for this important di ... | 2018 | 30583723 |
| exploring the potential of computer vision analysis of pupae size dimorphism for adaptive sex sorting systems of various vector mosquito species. | several mosquito population suppression strategies based on the rearing and release of sterile males have provided promising results. however, the lack of an efficient male selection method has hampered the expansion of these approaches into large-scale operational programmes. currently, most of these programmes targeting aedes mosquitoes rely on sorting methods based on the sexual size dimorphism (ssd) at the pupal stage. the currently available sorting methods have not been developed based on ... | 2018 | 30583722 |
| dengue outbreaks and the geographic distribution of dengue vectors in taiwan: a 20-year epidemiological analysis. | dengue fever is an important mosquito-borne viral infectious disease that mostly occurs in tropical and subtropical areas of the world. according to epidemiological data from the center for disease control of taiwan, more than 98.62% of outbreaks of indigenous total dengue cases were reported in the southern part of taiwan. southern taiwan is an aggregate area encompassing tainan, kaohsiung, and pingtung, all of which are located below the tropic of cancer (23º35'n). with a few exceptions, dengu ... | 2018 | 30580791 |
| dengue in taiwan: pointing the finger at aedes aegypti. | in this issue of the biomedical journal we explore the history of dengue infection in taiwan and what current trends have to say about the vector responsible for transmitting the disease on the island. we focus on original research reporting the development of a new perfusion bioreactor to engineer bone from human cord blood stem cells. finally, we look at trends in osteoporosis in taiwan and how they highlight the success of public health campaigns. | 2018 | 30580790 |
| zika in puerto rico, 2016-2017: ii perspectives on epidemic surveillance and control, health communication, outcomes and lessons. | the social reaction to the zika epidemic in puerto rico reached a confrontational climax regarding aerial fumigation with an organophosphate insecticide. the public drama has obscured multiple simultaneous controversies. this and a companion paper, based mostly on print and digital news reports, provide a context and description of the major controversies and examine the outcomes and their lessons for the protection of the public's health. part ii covers the questions on disease surveillance (wh ... | 2018 | 30576574 |
| zika virus in the americas: an environmental health perspective. | phylogenetic studies suggest that zikv may have been introduced to brazil, and therefore to the americas, in 2014 during the world spring canoe championship held in the city of rio de janeiro. since then the virus has spread across latin america, caribbean, and north america. it seems clear that aedes aegypti and, to a lesser extent, aedes albopictus are the main vectors of the pathogen. zikv infection symptoms are similar to other flaviviruses such as a dengue infection and therefore can be eas ... | 2018 | 30576572 |
| the pagodas protocol: pediatric assessment group of dengue and aedes saliva protocol to investigate vector-borne determinants of aedes-transmitted arboviral infections in cambodia. | mosquito-borne arboviruses, like dengue virus, continue to cause significant global morbidity and mortality, particularly in southeast asia. when the infectious mosquitoes probe into human skin for a blood meal, they deposit saliva containing a myriad of pharmacologically active compounds, some of which alter the immune response and influence host receptivity to infection, and consequently, the establishment of the virus. previous reports have highlighted the complexity of mosquito vector-derive ... | 2018 | 30572920 |
| construction sites in miami-dade county, florida are highly favorable environments for vector mosquitoes. | urbanization is increasing globally, and construction sites are an integral part of the urbanization process. it is unknown to what extent construction sites create favorable breeding conditions for mosquitoes. the main objectives of the present study were to identify what species of mosquitoes are present at construction sites and the respective physical features associated with their production. eleven construction sites were cross-sectionally surveyed for the presence of mosquitoes in miami-d ... | 2018 | 30571764 |
| soluble expression of recombinant midgut zymogen (native propeptide) proteases from the aedes aegypti mosquito utilizing e. coli as a host. | studying proteins and enzymes involved in important biological processes in the aedes aegypti mosquito is limited by the quantity that can be directly isolated from the mosquito. adding to this difficulty, digestive enzymes (midgut proteases) involved in metabolizing blood meal proteins require a more oxidizing environment to allow proper folding of disulfide bonds. therefore, recombinant techniques to express foreign proteins in escherichia coli prove to be effective in producing milligram quan ... | 2018 | 30563449 |
| simultaneous detection of different zika virus lineages via molecular computation in a point-of-care assay. | we have developed a generalizable "smart molecular diagnostic" capable of accurate point-of-care (poc) detection of variable nucleic acid targets. our isothermal assay relies on multiplex execution of four loop-mediated isothermal amplification reactions, with primers that are degenerate and redundant, thereby increasing the breadth of targets while reducing the probability of amplification failure. an easy-to-read visual answer is computed directly by a multi-input boolean or logic gate (gate o ... | 2018 | 30558136 |
| larval exposure to the bacterial insecticide bti enhances dengue virus susceptibility of adult aedes aegypti mosquitoes. | understanding the interactions between pathogens sharing the same host can be complicated for holometabolous animals when larval and adult stages are exposed to distinct pathogens. in medically important insect vectors, the effect of pathogen exposure at the larval stage may influence susceptibility to human pathogens at the adult stage. we addressed this hypothesis in the mosquito aedes aegypti, a major vector of arthropod-borne viruses (arboviruses), such as the dengue virus (denv) and the chi ... | 2018 | 30558130 |
| evolution of maternal and zygotic mrna complements in the early drosophila embryo. | the earliest stages of animal development are controlled by maternally deposited mrna transcripts and proteins. once the zygote is able to transcribe its own genome, maternal transcripts are degraded, in a tightly regulated process known as the maternal to zygotic transition (mzt). while this process has been well-studied within model species, we have little knowledge of how the pools of maternal and zygotic transcripts evolve. to characterize the evolutionary dynamics and functional constraints ... | 2018 | 30557299 |
| aedes aegypti galectin competes with cry11aa for binding to alp1 to modulate cry toxicity. | the key step for the toxicity of bacillus thuringiensis subsp. israelensis (bti) is the interaction between toxins and putative receptors; thus, many studies focus on identification of new toxin receptors and engineering of toxins with higher affinity/specificity for receptors. in the larvae of aedes aegypti, galectin-14 was one of the genes upregulated by bti treatment. rnai knockdown expression of galectin-14 and feeding recombinant galectin-14-thioredoxin fusion protein significantly affected ... | 2018 | 30556692 |
| evaluation of the leaf essential oil from artemisia vulgaris and its larvicidal and repellent activity against dengue fever vector aedes aegypti-an experimental and molecular docking investigation. | aedes aegypti is a mosquito vector that spreads dengue fever and yellow fever worldwide in tropical and subtropical countries. essential oil isolated from artemisia vulgaris is found to have larvicidal and repellent action against this vector. the dried leaves were subjected to hydrodistillation using a clevenger-type apparatus for 4 h. the isolated essential oil was analyzed by using gas chromatography-mass spectrometry, and the major insecticidal compounds were identified as α-humulene (0.72%) ... | 2018 | 30556010 |
| omics approaches to study juvenile hormone synthesis. | the juvenile hormones (jhs) are a family of insect acyclic sesquiterpenoids produced by the corpora allata (ca), a pair of endocrine glands connected to the brain. they are involved in the regulation of development, reproduction, behavior, caste determination, diapause, stress response, and numerous polyphenisms. in the post-genomics era, comprehensive analyses using functional 'omics' technologies such as transcriptomics, proteomics and metabolomics have increased our understanding of the activ ... | 2018 | 30551825 |
| genetic variability of the aedes aegypti (diptera: culicidae) mosquito in el salvador, vector of dengue, yellow fever, chikungunya and zika. | aedes aegypti is associated with dengue, yellow fever, chikungunya and zika viruses. this vector is widespread in tropical and subtropical areas, and can also occur in temperate areas at higher latitudes. the geographical distribution of ae. aegypti continues to spread due to human activities. this is the first study to examine the population genetic structure of this insect in el salvador, central america. | 2018 | 30547835 |
| susceptible and mcry3a resistant corn rootworm larvae killed by a non-hemolytic bacillus thuringiensis cyt1aa mutant. | the western corn rootworm (wcr) diabrotica virgifera virgifera causes substantial damage in corn. genetically modified (gm) plants expressing some bacillus thuringiensis (bt) insecticidal cry proteins efficiently controlled this pest. however, changes in wcr susceptibility to these bt traits have evolved and identification of insecticidal proteins with different modes of action against wcr is necessary. we show here for the first time that cyt1aa from bt exhibits toxicity against wcr besides to ... | 2018 | 30546034 |
| aspergillus terreus (trichocomaceae): a natural, eco-friendly mycoinsecticide for control of malaria, filariasis, dengue vectors and its toxicity assessment against an aquatic model organism artemia nauplii. | vector-borne diseases like malaria, filariasis, and dengue are transmitted by mosquitoes and they cause global mortality and morbidity due to an increased resistance against commercial insecticides. the present study was aimed to evaluate the neurobehavioral toxicity, knock-down effect, histopathology, ovicidal, adulticidal, and smoke toxicity effect of aspergillus terreus extract against three mosquito species, namely anopheles stephensi, culex quinquefasciatus, and aedes aegypti (diptera: culi ... | 2018 | 30534070 |
| multispecies transcriptomics data set of brugia malayi, its wolbachia endosymbiont wbm, and aedes aegypti across the b. malayi life cycle. | here, we present a comprehensive transcriptomics data set of brugia malayi, its wolbachia endosymbiont wbm, and its vector host. this study samples from 16 stages across the entire b. malayi life cycle, including stage 1 through 4 larvae, adult males and females, embryos, immature microfilariae, and mature microfilariae. | 2018 | 30533772 |
| comparison of landmark- and outline-based geometric morphometrics for discriminating mosquito vectors in ratchaburi province, thailand. | it is often challenging to identify mosquito vectors in the field based on morphological features due to their similar morphologies and difficulties in obtaining undamaged samples but is required for their successful control. geometric morphometrics (gm) overcomes this issue by analyzing a suite of traits simultaneously and has the added advantages of being easy to use, low cost, and quick. therefore, this research compared the efficiency and precision of landmark- and outline-based gm technique ... | 2018 | 30533435 |
| dengue outbreaks in hawai'i after wwii - a review of public health response and scientific literature. | the four serotypes of dengue virus (denv) cause the most important and common arthropod-borne viral diseases in humans. there have been three major dengue outbreaks in hawai'i since 1946. the most recent and largest outbreak occurred on hawai'i island in 2015-2016. this article reviews the public health response to dengue outbreaks over the period 2001-2016, as well as scientific literature on dengue outbreaks in hawai'i. as summarized in the assessment by the centers for disease control and pre ... | 2018 | 30533283 |
| correction: mosquito pornoscopy: observation and interruption of aedes aegypti copulation to determine female polyandric event and mixed progeny. | [this corrects the article doi: 10.1371/journal.pone.0193164.]. | 2018 | 30532207 |
| vector competence of biting midges and mosquitoes for shuni virus. | shuni virus (shuv) is an orthobunyavirus that belongs to the simbu serogroup. shuv was isolated from diverse species of domesticated animals and wildlife, and is associated with neurological disease, abortions, and congenital malformations. recently, shuv caused outbreaks among ruminants in israel, representing the first incursions outside the african continent. the isolation of shuv from a febrile child in nigeria and seroprevalence among veterinarians in south africa suggests that the virus ma ... | 2018 | 30532189 |
| the composition of midgut bacteria in aedes aegypti (diptera: culicidae) that are naturally susceptible or refractory to dengue viruses. | the composition, abundance, and diversity of midgut bacteria in mosquitoes can influence pathogen transmission. we used 16s rrna microbiome profiling to survey midgut microbial diversity in pooled samples of laboratory colonized dengue-refractory, cali-mib, and dengue-susceptible, cali-s aedes aegypti (linnaeus). the 16s rrna sequences from the sugar-fed midguts of adult females clustered to 63 amplicon sequence variants (asvs), primarily from proteobacteria, firmicutes, flavobacteria, and actin ... | 2018 | 30508201 |
| optimization of double-stranded rnai intrathoracic injection method in aedes aegypti. | rna interference is widely used to analyze gene functions via phenotypic knockdown of target transcripts in mosquitoes, which transmit numerous mosquito-borne diseases. functional analysis of mosquito genes is indispensable to understand and reduce transmission of mosquito-borne diseases in mosquitoes. intrathoracic injection of double-stranded rna (dsrna) remains the simplest and most customizable method in mosquitoes for functional analysis of the genes of interest. however, achieving consiste ... | 2018 | 30505333 |
| risk prediction system for dengue transmission based on high resolution weather data. | dengue is the fastest spreading vector-borne viral disease, resulting in an estimated 390 million infections annually. precise prediction of many attributes related to dengue is still a challenge due to the complex dynamics of the disease. important attributes to predict include: the risk of and risk factors for an infection; infection severity; and the timing and magnitude of outbreaks. in this work, we build a model for predicting the risk of dengue transmission using high-resolution weather d ... | 2018 | 30521550 |
| [costs of an aedes aegypti vector control program in municipalities in colombia: a case study in girón and guadalajara de buga, 2016]. | the aim of this study was to measure the costs of vector-borne disease control programs at the local level in colombia (2016). a cost analysis was performed for this purpose from the policymaker's perspective in the municipalities (counties) of girón and guadalajara de buga, specifically for the aedes aegypti control program, the principal mosquito vector of dengue, zika, and chikungunya. the analysis involved the quantification of all the costs required for each of the prevention and control st ... | 2018 | 30517314 |
| sequential infection of aedes aegypti mosquitoes with chikungunya virus and zika virus enhances early zika virus transmission. | in urban settings, chikungunya, zika, and dengue viruses are transmitted by aedes aegypti mosquitoes. since these viruses co-circulate in several regions, coinfection in humans and vectors may occur, and human coinfections have been frequently reported. yet, little is known about the molecular aspects of virus interactions within hosts and how they contribute to arbovirus transmission dynamics. we have previously shown that aedes aegypti exposed to chikungunya and zika viruses in the same blood ... | 2018 | 30513725 |
| volatile composition and biological activities of the leaf essential oil from zanthoxylum limoncello grown in oaxaca, méxico. | zanthoxylum limoncello is a native plant from southern mexico which is used as a timber source, condiment and as a traditional medicine. herein, we report on the volatile content of the leaf essential oil and its biological activities. the annual essential oils (2015-2018) contained volatile organic compounds which exhibited a moderate growth inhibitory activity against h. pylori atcc 53504 (mic 121.4-139.7 μg ml-1 ), 26695 (mic 85.5-94.9 μg ml-1 ) and j99 (mic 94.7-110.4 μg ml-1 ). these hydrod ... | 2019 | 30512233 |
| co-occurrence of v1016i and f1534c mutations in the voltage-gated sodium channel and resistance to pyrethroids in aedes aegypti (l.) from the colombian caribbean region. | knockdown resistance is conferred primarily by non-synonymous mutations that reduce pyrethroids binding to voltage-gated sodium channels. in 2014, kdr mutation v1016i in aedes aegypti populations resistant to pyrethroids was reported for the first time in colombiα, in 2016 another kdr mutation, f1534c, and in 2018 the mutation v419l. nine populations of a. aegypti, previously characterized as being resistant to λ-cyhalothrin, deltamethrin, cyfluthrin and permethrin, were used for this study. gen ... | 2019 | 30520256 |
| differential suppression of persistent insect specific viruses in trans-infected wmel and wmelpop-cla aedes-derived mosquito lines. | wolbachia suppresses the replication of +ssrna viruses such as dengue and zika viruses in aedes aegypti mosquitoes. however, the range of viruses affected by this endosymbiont is yet to be explored. recently, novel insect-specific viruses (isvs) have been described from numerous mosquito species and mosquito-derived cell lines. cell-fusing agent virus (flaviviridae) and phasi charoen-like virus (bunyaviridae) persistently infect the ae. aegypti cell line aag2 which has been used for experimental ... | 2019 | 30503908 |
| [new altitudinal registration of aedes aegypti in the region of piura, peru]. | 2019 | 30517515 | |
| seroprevalence of zika virus among asymptomatic pregnant mothers and their newborns in the najran region of southwest saudi arabia. | zika virus (zikv) is a teratogenic flavivirus that can cause microcephaly. its main vector, aedes aegypti, has been previ.ously identified in saudi arabia, but no zikv infection has yet been reported. nevertheless, the country is at risk from zikv because it receives many travelers throughout the year, including pilgrims from zikv-endemic countries. | 2019 | 30531174 |
| mechanisms of pyrethroid resistance in aedes (stegomyia) aegypti from colombia. | in colombia aedes (stegomyia) aegypti is the main vector of urban arboviruses such as dengue, chikungunya and zika. this urban mosquito has a well-established capacity to develop insecticide resistance to different types of insecticides (pyrethroids, organochlorides, organophosphates), using multiple resistance mechanisms. an understanding of ongoing resistance mechanisms is critical to determining the activities of vector control programs. in order to identify the biochemical and molecular mech ... | 2019 | 30552882 |
| proteins, transcripts, and genetic architecture of seminal fluid and sperm in the mosquito aedes aegypti. | the yellow fever mosquito, aedes aegypti,, transmits several viruses causative of serious diseases, including dengue, zika, and chikungunya. some proposed efforts to control this vector involve manipulating reproduction to suppress wild populations or to replace them with disease-resistant mosquitoes. the design of such strategies requires an intimate knowledge of reproductive processes, yet our basic understanding of reproductive genetics in this vector remains largely incomplete. to accelerate ... | 2019 | 30552291 |
| the tudor protein veneno assembles the ping-pong amplification complex that produces viral pirnas in aedes mosquitoes. | piwi-interacting rnas (pirnas) comprise a class of small rnas best known for suppressing transposable elements in germline tissues. the vector mosquito aedes aegypti encodes seven piwi genes, four of which are somatically expressed. this somatic pirna pathway generates pirnas from viral rna during infection with cytoplasmic rna viruses through ping-pong amplification by the piwi proteins ago3 and piwi5. yet, additional insights into the molecular mechanisms mediating non-canonical pirna producti ... | 2019 | 30566680 |
| container size alters the outcome of interspecific competition between aedes aegypti (diptera: culicidae) and aedes albopictus. | aedes aegypti l. and aedes albopictus skuse co-occur in a variety of water-filled containers where they compete for resources. larvae of ae. albopictus skuse often outcompete those of ae. aegypti l., but variation in biotic and abiotic parameters can modify the outcome of this interspecific competition. we tested whether container size can alter the magnitude and direction of intra- and interspecific competition by rearing three ae. aegypti and ae. albopictus larval combinations (100:0, 50:50 an ... | 2019 | 30566608 |
| bioactivity of wild carrot (daucus carota, apiaceae) essential oil against mosquito larvae. | invasive alien plants wreak havoc on native ecosystems and using them as a source of biopesticides could improve their management. we examined the toxicity of essential oil of wild carrot (also known as 'queen anne's lace', daucus carota linnaeus), an aggressive invader throughout the united states, against aedes aegypti l., culex pipiens l., and culex restuans theobald larvae. comparisons were made between essential oil extracted from umbels of local populations of wild carrot versus a commerci ... | 2019 | 30566578 |
| distinctive regulatory properties of pyruvate kinase 1 from aedes aegypti mosquitoes. | female aedes aegypti mosquitoes are vectors of arboviruses that cause diseases of public health significance. the discovery of new metabolic targets is crucial for improving mosquito control strategies. we recently demonstrated that glucose oxidation supports ammonia detoxification in a. aegypti. pyruvate kinase (pk, ec 2.7.1.40) catalyzes the last step of the glycolytic pathway. in most organisms, one or more allosteric effectors control pk activity. however, the kinetic properties and structur ... | 2019 | 30578824 |
| production of tetravalent dengue virus envelope protein domain iii based antigens in lettuce chloroplasts and immunologic analysis for future oral vaccine development. | dengue fever is a mosquito (aedes aegypti) -transmitted viral disease that is endemic in more than 125 countries around the world. there are four serotypes of the dengue virus (denv 1-4) and a safe and effective dengue vaccine must provide protection against all four serotypes. to date, the first vaccine, dengvaxia (cyd-tdv), is available after many decades' efforts, but only has moderate efficacy. more effective and affordable vaccines are hence required. plants offer promising vaccine producti ... | 2019 | 30578710 |
| density-dependent enhanced replication of a densovirus in wolbachia-infected aedes cells is associated with production of pirnas and higher virus-derived sirnas. | the endosymbiotic bacterium wolbachia pipientis has been shown to restrict a range of rna viruses in drosophila melanogaster and transinfected dengue mosquito, aedes aegypti. here, we show that wolbachia infection enhances replication of aedes albopictus densovirus (aaldnv-1), a single stranded dna virus, in aedes cell lines in a density-dependent manner. analysis of previously produced small rnas of aag2 cells showed that wolbachia-infected cells produced greater absolute abundance of virus-der ... | 2019 | 30583288 |
| the aedes aegypti imd pathway is a critical component of the mosquito antifungal immune response. | successful infection of the insect body by entomopathogenic fungi is the result of complex molecular interactions between the host and the invading pathogenic fungi. the mosquito antifungal response is multifaceted and is regulated in part by the toll and jak-stat pathways. here, we assessed the role of the imd pathway in the mosquito ae. aegypti antifungal immune response when challenged with one of two entomopathogenic fungi, beauveria bassiana and isaria javanica. imd pathway components of th ... | 2019 | 30582948 |
| green synthesis of silver-nanoparticles from annona reticulata leaves aqueous extract and its mosquito larvicidal and anti-microbial activity on human pathogens. | silver nanoparticles play a important role in controlling mosquito population as well as multi drug resistant pathogens without causing much harm to humans. in the present study was focused on green synthesis of silver nanoparticles against dengue causing vector (aedes aegypti) and pathogens affecting humans. the synthesized silver nanoparticle was confirmed using uv- absorption spectrum range obtained at 416 nm, xrd, ftir and hr-tem analysis were used to determine the silver nanoparticle morpho ... | 2019 | 30581768 |
| a gut commensal bacterium promotes mosquito permissiveness to arboviruses. | mosquitoes are hematophagous vectors that can acquire human viruses in their intestinal tract. here, we define a mosquito gut commensal bacterium that promotes permissiveness to arboviruses. antibiotic depletion of gut bacteria impaired arboviral infection of a lab-adapted aedes aegypti mosquito strain. reconstitution of individual cultivable gut bacteria in antibiotic-treated mosquitoes identified serratia marcescens as a commensal bacterium critical for efficient arboviral acquisition. s. marc ... | 2019 | 30595552 |