Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| chikungunya fever. rheumatic manifestations of an emerging disease in europe. | chikungunya fever is a viral disease caused by an alphavirus belonging to the togaviridae family, transmitted by several species of aedes mosquitoes: aedes aegypti and aedes albopictus (a. albopictus). it is endemic in africa and asia with recurrent outbreaks. it is an emerging disease and cases in europe transmitted by a. albopictus have been established in mediterranean areas. the first autochthonous cases detected on the caribbean islands suppose a serious threat of spreading disease to ameri ... | 2016 | 25192946 |
| [entomological evaluation of the risk of urban outbreak of yellow fever in 2008 in abidjan, côte d'ivoire]. | in april 2008, seven years after the outbreak of 2001, abidjan faced another epidemic of yellow fever. three weeks after the case detected in the commune of treichville at 28(th) of april 2008, two other cases were notified, the first one in port-bouet and the second one in cocody located respectively in the south and north of the city of abidjan. in order to determine a large-scale risk of urban yellow fever epidemic, epidemiological and entomological investigations were conducted by the minist ... | 2016 | 23693032 |
| spatial and temporal variation in aedes aegypti and aedes albopictus (diptera: culicidae) numbers in the yogyakarta area of java, indonesia, with implications for wolbachia releases. | of mosquito vector populations, particularly through wolbachia endosymbionts. the success of these strategies depends on understanding the dynamics of vector populations. in preparation for wolbachia releases around yogyakarta, we have studied aedes populations in five hamlets. adult monitoring with biogent- sentinel (bg-s) traps indicated that hamlet populations had different dynamics across the year; while there was an increase in aedes aegypti (l.) and aedes albopictus (skuse) numbers in the ... | 2016 | 26576934 |
| identification of a major quantitative trait locus determining resistance to the organophosphate temephos in the dengue vector mosquito aedes aegypti. | organophosphate insecticides (op) have extensively been used to control mosquitoes, such as the vector aedes aegypti. unfortunately, op resistance has hampered control programs worldwide. we used quantitative trait locus (qtl) mapping to evaluate temephos resistance in two f1 intercross populations derived from crosses between a resistant ae. aegypti strain (recr) and two susceptible strains (moyod and red). a single major effect qtl was identified on chromosome 2 of both segregating populations ... | 2016 | 26576515 |
| characterization and mosquitocidal potential of neem cake-synthesized silver nanoparticles: genotoxicity and impact on predation efficiency of mosquito natural enemies. | mosquitoes (diptera: culicidae) serve as important vectors for a wide number of parasites and pathogens of huge medical and veterinary importance. aedes aegypti is a primary dengue vector in tropical and subtropical urban areas. there is an urgent need to develop eco-friendly mosquitocides. in this study, silver nanoparticles (agnp) were biosynthesized using neem cake, a by-product of the neem oil extraction from the seed kernels of azadirachta indica. agnp were characterized using a variety of ... | 2016 | 26573518 |
| the impact of indoor residual spraying of deltamethrin on dengue vector populations in the peruvian amazon. | dengue is an important public health problem in the amazon area of peru, resulting in significant morbidity each year. as in other areas of the world, ultra-low volume (ulv) application of insecticides is the main strategy to reduce adult populations of the dengue vector aedes aegypti, despite growing evidence of its limitations as a single control method. this study investigated the efficacy of deltamethrin s.c. applied through indoor residual spraying (irs) of dwellings in reducing a. aegypti ... | 2016 | 26571068 |
| how important is vertical transmission of dengue viruses by mosquitoes (diptera: culicidae)? | vertical transmission of dengue viruses by mosquitoes was discovered at the end of the late 1970s and has been suggested to be a means by which these viruses persist. however, it is unclear how widespread it is in nature, and its importance in the epidemiology of this disease is still debated. here, we review the literature on vertical transmission and discuss its role in dengue's epidemiology and control. we conclude that given the number of studies that failed to find evidence of vertical tran ... | 2016 | 26545718 |
| satyrization and satyrization-resistance in competitive displacements of invasive mosquito species. | competitive displacements or reductions of resident populations of insects, often effected by a related species, may be caused by a variety of mechanisms. satyrization is a form of mating interference in which males of one species mate with females of another species, significantly decreasing their fitness and not generating hybrids. satyrization has been established to be the probable cause of competitive displacements of resident mosquitoes by invasive species, especially of aedes aegypti by a ... | 2016 | 26542083 |
| plant-mediated biosynthesis of nanoparticles as an emerging tool against mosquitoes of medical and veterinary importance: a review. | mosquitoes (diptera: culicidae) are a key threat for millions of people worldwide, since they act as vectors for devastating parasites and pathogens. mosquito young instars are usually targeted with organophosphates, insect growth regulators and microbial control agents. indoors residual spraying and insecticide-treated bed nets are also employed. however, these chemicals have strong negative effects on human health and the environment. newer and safer tools have been recently implemented to enh ... | 2016 | 26541154 |
| nepenthes ampullaria (nepenthaceae) pitchers are unattractive to gravid aedes aegypti and aedes albopictus (diptera: culicidae). | nepenthes pitcher plants are colonized by a variety of specialized arthropods. as aedes mosquitoes are container breeders, nepenthes pitchers are a potential candidate oviposition site for vector species, such as aedes aegypti (l.) and aedes albopictus (skuse). however, aedes spp. are not commonly encountered in nepenthes pitchers, and the environment inside the pitchers of some species is lethal to them. one exception is nepenthes ampullaria jack, whose pitchers are known to be colonized by ae. ... | 2016 | 26518035 |
| the role of octopamine receptor agonists in the synergistic toxicity of certain insect growth regulators (igrs) in controlling dengue vector aedes aegypti (diptera: culicidae) mosquito. | the synergistic action of octopamine receptor agonists (or agonists) on many insecticide classes (e.g., organophosphorus, pyrethroids, and neonicotinoids) on aedes aegypti l. has been reported recently. an investigation of or agonist's effect on insect growth regulators (igrs) was undertaken to provide a better understanding of the mechanism of action. based on the igr bioassay, pyriproxyfen was the most potent igr insecticide tested (ec50=0.0019ng/ml). however, the lethal toxicity results indic ... | 2016 | 26672383 |
| off! clip-on repellent device with metofluthrin tested on aedes aegypti (diptera: culicidae) for mortality at different time intervals and distances. | the off! clip-on mosquito-repellent device was tested outdoors against aedes aegypti (l.). a single treatment device was used against batches of caged adult, nonblood fed ae. aegypti at multiple locations 0.3m from treatment center. another set of cages was stationed 0.6m from treatment. a final set of cages was placed 0.9m away. trials ran for durations of 5, 15, 30, and 60 min. initial knockdown and mortality after 24 h was recorded. the devices had effective knockdown and mortality. this was ... | 2016 | 26668103 |
| expression profiles and rnai silencing of inhibitor of apoptosis transcripts in aedes, anopheles, and culex mosquitoes (diptera: culicidae). | effective mosquito control is vital to curtail the devastating health effects of many vectored diseases. rna interference (rnai)-mediated control of mosquitoes is an attractive alternative to conventional chemical pesticides. previous studies have suggested that transcripts for inhibitors of apoptosis (iaps) may be good rnai targets. to revisit and extend previous reports, we examined the expression of aedes aegypti (l.) iaps (aaeiaps) 1, 2, 5, 6, 9, and a viral iap-associated factor (viaf) as w ... | 2016 | 26659858 |
| spatial clustering of aedes aegypti (diptera: culicidae) and its impact on entomological surveillance indicators. | spatial clustering of aedes aegypti (l.) was assessed in 0.25-km2 sampling plots located in three different neighborhoods in the city of rio de janeiro, brazil monitoring was carried out with two oviposition traps (collecting either. eggs or adult mosquitoes) over a consecutive 80-wk period. taylor power laws (tpl) were used to assess clustering in both adult and egg collections. the clustering level observed in both tpl models was sufficient to increase by two to three times the sampling effort ... | 2016 | 26659607 |
| oviposition behavior in aedes aegypti and aedes albopictus (diptera: culicidae) in response to the presence of heterospecific and conspecific larvae. | in mosquitoes, location of suitable sites for oviposition requires a set of visual, tactile, and olfactory cues that influences females before laying their eggs. the ability of gravid females to distinguish among potential oviposition sites that will or will not support the growth, development, and survival of their progeny is critical. aedes aegypti (l.) and aedes albopictus (skuse) share ecological niches, being highly competitive in larval stage. we studied the oviposition behavior of both sp ... | 2016 | 26634825 |
| genetic deviation in geographically close populations of the dengue vector aedes aegypti (diptera: culicidae): influence of environmental barriers in south india. | mosquitoes are vectors of devastating pathogens and parasites, causing millions of deaths every year. dengue is a mosquito-borne viral infection found in tropical and subtropical regions around the world. recently, dengue transmission has strongly increased in urban and semiurban areas, becoming a major international public health concern. aedes aegypti (diptera: culicidae) is a primary vector of dengue. shedding light on genetic deviation in a. aegypti populations is of crucial importance to fu ... | 2016 | 26627691 |
| hydrothermal synthesis of titanium dioxide nanoparticles: mosquitocidal potential and anticancer activity on human breast cancer cells (mcf-7). | mosquito vectors (diptera: culicidae) are responsible for transmission of serious diseases worldwide. mosquito control is being enhanced in many areas, but there are significant challenges, including increasing resistance to insecticides and lack of alternative, cost-effective, and eco-friendly products. to deal with these crucial issues, recent emphasis has been placed on plant materials with mosquitocidal properties. furthermore, cancers figure among the leading causes of morbidity and mortali ... | 2016 | 26621285 |
| sustained efficacy of the novel topical repellent tt-4302 against mosquitoes and ticks. | mosquitoes and ticks are blood-feeding pests of humans and animals that can vector many important aetiological agents of disease. previous research demonstrated that tt-4302 (guardian(®) wilderness) containing 5% geraniol applied to human subjects gave 5-6 h of repellency against mosquitoes (depending on species) and was repellent to ticks in vitro. this study was conducted to obtain an independent third-party evaluation of tt-4302 against stegomyia aegypti (= aedes aegypti) (diptera: culicidae) ... | 2016 | 26614394 |
| development of a mosquito attractant blend of small molecules against host-seeking aedes aegypti. | a mosquito's dependence on olfaction in the hunt for human host could be efficiently exploited to protect humans from mosquito bites. the present study is undertaken to make the most attractant compound blend for aedes aegypti mosquitoes to lure them to traps. eleven molecules (m1-m11) at different dilutions were screened for attractancy against non-blood-fed adult female mosquitoes in an olfactometer. the results showed that the attractancy was dependent on both the chemical nature of the molec ... | 2016 | 26693718 |
| fitness of walbb wolbachia infection in aedes aegypti: parameter estimates in an outcrossed background and potential for population invasion. | wolbachia endosymbionts are potentially useful tools for suppressing disease transmission by aedes aegypti mosquitoes because wolbachia can interfere with the transmission of dengue and other viruses as well as causing deleterious effects on their mosquito hosts. most recent research has focused on the wmel infection, but other infections also influence viral transmission and may spread in natural populations. here, we focus on the walbb infection in an australian outbred background and show tha ... | 2016 | 26711515 |
| larvicidal activity of catechin isolated from leucas aspera against aedes aegypti, anopheles stephensi, and culex quinquefasciatus (diptera: culicidae). | vector control is facing a threat due to the emergence of resistance to synthetic insecticides. insecticides of plant origin my serve as an alternative biocontrol technique in the future. the aim of the present study was to evaluate the larvicidal activity of fractions and compounds from the whole-plant methanol extracts of leucas aspera on the fourth-instar larvae of aedes aegypti, anopheles stephensi, and culex quinquefasciatus. the larvae were exposed to fractions with concentrations ranging ... | 2016 | 26711450 |
| studies on aedes aegypti resistance to some insecticides in the jazan district, saudi arabia. | the present study provided information on the susceptibility status of the adult and larvae of aedes aegypti mosquitoes in jazan region of saudi arabia. bioassay tests were performed on adults and larvae by using who recommended concentrations and test kits. adults of ae. aegypti mosquitoes were exposed to test papers impregnated with lambda-cyhalothrin (0.05%), cyfluthrin (0.15%), deltamethrin (0.05%), permethrin (0.75%), fenitrothion (1%), bendiocarb (0.1%) and ddt (4%) insecticides. ae. aegyp ... | 2016 | 27363057 |
| the eye of the tiger, the thrill of the fight: effective larval and adult control measures against the asian tiger mosquito, aedes albopictus (diptera: culicidae), in north america. | the asian tiger mosquito, aedes albopictus (skuse), is a highly invasive container-inhabiting species with a global distribution. this mosquito, similar to other stegomyia species such as aedes aegypti (l.), is highly adapted to urban and suburban areas, and commonly oviposits in artificial containers, which are ubiquitous in these peridomestic environments. the increase in speed and amount of international travel and commerce, coupled with global climate change, have aided in the resurgence and ... | 2016 | 27354440 |
| differentiation of aedes aegypti and aedes notoscriptus (diptera: culicidae) eggs using scanning electron microscopy. | aedes notoscriptus and aedes aegypti are both peri-domestic, invasive container-breeding mosquitoes. while the two potential arboviral vectors are bionomically similar, their sympatric distribution in australia is limited. in this study, analyses of ae. aegypti and ae. notoscriptus eggs were enabled using scanning electron microscopy. significant variations in egg length to width ratio and outer chorionic cell field morphology between ae. aegypti and ae. notoscriptus enabled distinction of the t ... | 2016 | 26845557 |
| characterization of enzymatic profiles of aedes aegypti strains from the state of rio grande do norte, brazil. | this study was conducted in four strains of aedes aegypti mosquitoes to evaluate the enzymatic activity profiles in the city of mossoró, rio grande do norte, and correlate them with biochemical mechanisms of resistance to insecticides. mosquitos were used to quantify the following detoxification enzymes: mixed-function oxidase (mfo), pnpa-esterase (pnpa-est), and acetylcholinesterase (ache). the profiles were compared statistically with profiles from the rockefeller strain, through the kruskal-w ... | 2016 | 26816185 |
| aedes aegypti (l.) in latin american and caribbean region: with growing evidence for vector adaptation to climate change? | within latin america and the caribbean region the impact of climate change has been associated with the effects of rainfall and temperature on seasonal outbreaks of dengue but few studies have been conducted on the impacts of climate on the behaviour and ecology of aedes aegypti mosquitoes.this study was conducted to examine the adaptive behaviours currently being employed by a. aegypti mosquitoes exposed to the force of climate change in lac countries. the literature on the association between ... | 2016 | 26796862 |
| effect of cymbopogon citratus (lemongrass) and syzygium aromaticum (clove) oils on the morphology and mortality of aedes aegypti and anopheles dirus larvae. | cymbopogon citratus (lemongrass) and syzygium aromaticum (clove) oils were evaluated to determine mortality rates, morphological aberrations, and persistence when used against third and fourth larval instars of aedes aegypti and anopheles dirus. the oils were evaluated at 1, 5, and 10 % concentrations in mixtures with soybean oil. persistence of higher concentrations was measured over a period of 10 days. for ae. aegypti, both plant oils caused various morphological aberrations to include deform ... | 2016 | 26796022 |
| delivery of chitosan/dsrna nanoparticles for silencing of wing development vestigial (vg) gene in aedes aegypti mosquitoes. | rna interference (rnai) has been used as a gene silencing strategy by the introduction of long double stranded rna (dsrna) for the control of pest insects. the aim of the present study was to examine whether the expression of vg gene which is responsible for wing development, can be repressed by chitosan/dsrna based nanoparticles in aedes aegypti. the vestigial gene (vg) was amplified from adult mosquito and cloned in plitmus28i vector. genetically engineered recombinant plasmid was transformed ... | 2016 | 26794313 |
| larvicidal and repellent potential of zingiber nimmonii (j. graham) dalzell (zingiberaceae) essential oil: an eco-friendly tool against malaria, dengue, and lymphatic filariasis mosquito vectors? | mosquitoes (diptera: culicidae) are important vectors of terms of public health relevance, especially in tropical and sub-tropical regions. the continuous and indiscriminate use of conventional pesticides for the control of mosquito vectors has resulted in the development of resistance and negative impacts on non-target organisms and the environment. therefore, there is a need for development of effective mosquito control tools. in this study, the larvicidal and repellent activity of zingiber ni ... | 2016 | 26792432 |
| exploiting intimate relationships: controlling mosquito-transmitted disease with wolbachia. | mosquito-transmitted diseases impose a growing burden on human health, and current control strategies have proven insufficient to stem the tide. the bacterium wolbachia is a novel and promising form of control for mosquito-transmitted disease. it manipulates host biology, restricts infection with dengue and other pathogens, and alters host reproduction to promote rapid spread in the field. in this review, we examine how the intimate and diverse relationships formed between wolbachia and their mo ... | 2016 | 26776329 |
| calcium influx enhances neuropeptide activation of ecdysteroid hormone production by mosquito ovaries. | a critical step in mosquito reproduction is the ingestion of a blood meal from a vertebrate host. in mosquitoes like aedes aegypti, blood feeding stimulates the release of ovary ecdysteroidogenic hormone (oeh) and insulin-like peptide 3 (ilp3). this induces the ovaries to produce ecdysteroid hormone (ecd), which then drives egg maturation. in many immature insects, prothoracicotropic hormone (ptth) stimulates the prothoracic glands to produce ecd that directs molting and metamorphosis. the recep ... | 2016 | 26772671 |
| temporal genetic stability of stegomyia aegypti (= aedes aegypti) populations. | the mosquito stegomyia aegypti (= aedes aegypti) (diptera: culicidae) is the primary vector of viruses that cause yellow fever, dengue and chikungunya fever. in the absence of effective vaccines, the reduction of these diseases relies on vector control strategies. the success of these strategies is tightly linked to the population dynamics of target populations. in the present study, 14 collections from st. aegypti populations separated by periods of 1-13 years were analysed to determine their t ... | 2016 | 26744174 |
| detection of aedes aegypti, aedes albopictus, and aedes koreicus in the area of sochi, russia. | following the identification of aedes (ae.) aegypti in the sochi area in russia at the beginning of 2000, entomological surveys were conducted during the summers of 2007, 2011, and 2012, leading to the identification of ae. albopictus and ae. koreicus. these findings highlight russia as being the only country in the world health organization european region with a documented presence of both ae. aegypti and ae. albopictus mosquitoes. both mosquito species are found on the coasts of the black sea ... | 2016 | 26741323 |
| bioactivity and laundering resistance of five commercially available, factory-treated permethrin-impregnated fabrics for the prevention of mosquito-borne diseases: the need for a standardized testing and licensing procedure. | personal protective measures against hematophagous vectors constitute the first line of defense against arthropod-borne diseases. in this regard, a major advance has been the development of residual insecticides that can be impregnated into clothing. currently, however, information on specific treatment procedures, initial insecticide concentrations, arthropod toxicity, residual activity, and laundering resistance is either fragmentary or non-existent, and no world health organization pesticides ... | 2016 | 26738734 |
| species distribution modelling of aedes aegypti in two dengue-endemic regions of pakistan. | statistical tools are effectively used to determine the distribution of mosquitoes and to make ecological inferences about the vector-borne disease dynamics. in this study, we utilised species distribution models to understand spatial patterns of aedes aegypti in two dengue-prevalent regions of pakistan, lahore and swat. species distribution models can potentially indicate the probability of suitability of ae. aegypti once introduced to new regions like swat, where invasion of this species is a ... | 2016 | 26729239 |
| determination of insecticidal effect (lc50 and lc90) of organic fatty acids mixture (c8910+silicone) against aedes aegypti and aedes albopictus (diptera: culicidae). | emerging and re-emerging vector-borne diseases such as chikungunya and dengue and associated aedes vectors are expanding their historical ranges; thus, there is a need for the development of novel insecticides for use in vector control programs. the mosquito toxicity of a novel insecticide and repellent consisting of medium-chain carbon fatty acids (c8910) was examined. determination of lc50 and lc90 was made against colony-reared aedes aegypti (l.) and aedes albopictus (skuse) using probit anal ... | 2016 | 26718717 |
| the siren's song: exploitation of female flight tones to passively capture male aedes aegypti (diptera: culicidae). | the need to capture male mosquitoes has intensified recently as a result of a number of male-based sterile insect technique (sit) and population-modification programs focused on aedes aegypti (l.) having initiated field releases. here, we report the results of the successful exploitation of the attraction of male ae. aegypti to female flight tones to enhance male collections in nonmechanical passive (nonbattery powered) gravid aedes traps (gat). prior to field studies, male attraction to female ... | 2016 | 26502754 |
| the influence of ambient temperature on the susceptibility of aedes aegypti (diptera: culicidae) to the pyrethroid insecticide permethrin. | insecticides are the most common strategy used for the management of mosquitoes. changes in ambient temperature can alter the toxicity of insecticides to ectothermic organisms. studies show organophosphate insecticides exhibit a positive correlation between ambient temperature and mortality for many insect species, and carbamate insecticides exhibit a slightly negative correlation between ambient temperature and mortality. pyrethroid insecticides exhibit a distinctly negative correlation between ... | 2016 | 26477050 |
| mosquito salivary allergen aed a 3: cloning, comprehensive molecular analysis, and clinical evaluation. | allergic reactions to mosquito bites are an increasing clinical concern. due to the lack of availability of mosquito salivary allergens, they are underdiagnosed. here, we reported a newly cloned mosquito aedes (ae.) aegypti salivary allergen. | 2016 | 26608594 |
| improving the effectiveness of three essential oils against aedes aegypti (linn.) and anopheles dirus (peyton and harrison). | repellency of essential oil extracted from curcuma longa, eucalyptus globulus, and citrus aurantium at various concentrations (5, 10, 15, 20, and 25 %) with and without 5 % vanillin was evaluated against female mosquitoes: aedes aegypti and anopheles dirus. the comparisons were made with a commercial chemical repellent (n,n-diethyl-3-methylbenzamide (deet) 25 % w/w; kor yor 15) by arm in cage method. it was found that the essential oils with 5 % vanillin gave the longest lasting period against t ... | 2016 | 26358103 |
| utilization of biodiesel by-products for mosquito control. | the current paper has elaborated the efficient utilization of non-edible oil seed cakes (neoc), by-products of the bio-diesel extraction process to develop a herbal and novel mosquitocidal composition against the aedes aegypti larvae. the composition consisted of botanical active ingredients, inerts, burning agents and preservatives; where the botanical active ingredients were karanja (pongamia glabra) cake powder and jatropha (jatropha curcas) cake powder, products left after the extraction of ... | 2016 | 26296531 |
| insecticidal potential of ocimum canum plant extracts against anopheles stephensi, aedes aegypti and culex quinquefasciatus larval and adult mosquitoes (diptera: culicidae). | mosquitoes have developed resistance to various synthetic insecticides, making their control increasingly difficult. insecticides of botanical origin may serve as suitable natural control. this study evaluates the toxic potential of ocimum canum (sims) leaf extract and powder against anopheles stephensi (liston), aedes aegypti (lin) and culex quinquefasciatus (say) larval and adult mosquitoes. larval mortality was observed after 24 h recovery period and adult smoke toxicity observed for 40 min d ... | 2016 | 26135241 |
| the epidemiology of dengue fever in saudi arabia: a systematic review. | dengue fever (df) is the most serious mosquito-borne viral disease worldwide. df is an acute febrile illness caused by aedes aegypti and aedes albopictus, which are endemic in certain cities of saudi arabia, such as jeddah and makkah (mecca). an online literature search was conducted using relevant keywords to retrieve df studies conducted in saudi arabia. forty-five articles were identified initially. after screening for exclusion and retrieving full texts, a total of 10 articles were used for ... | 2016 | 26106040 |
| rapid biosynthesis of silver nanoparticles using crotalaria verrucosa leaves against the dengue vector aedes aegypti: what happens around? an analysis of dragonfly predatory behaviour after exposure at ultra-low doses. | aedes aegypti is a primary vector of dengue, a mosquito-borne viral disease infecting 50-100 million people every year. here, we biosynthesised mosquitocidal silver nanoparticles (agnp) using the aqueous leaf extract of crotalaria verrucosa. the green synthesis of agnp was studied by uv-vis spectroscopy, sem, edx and ftir. c. verrucosa-synthesised agnps were toxic against a. aegypti larvae and pupae. lc50 of agnp ranged from 3.496 ppm (i instar larvae) to 17.700 ppm (pupae). furthermore, we eval ... | 2016 | 26284510 |
| a novel in vitro bioassay to explore the repellent effects of compounds against mosquito aedes aegypti (diptera: culicidae). | mosquitoes are vectors for many pathogens resulting in many deaths of humans. repellents play an important role in reducing mosquito bites and the spread of mosquito-borne diseases. currently, klun & debboun (k & d) and human-arm-based bioassay systems are used to identify repellent properties of compounds, extracts, and essential oils. risks involved with human-arm-based systems are allergic reactions and limited replicates. we are reporting an in vitro bioassay method “ncnpr repellent bioassay ... | 2016 | 26590191 |
| toxicity and physiological actions of carbonic anhydrase inhibitors to aedes aegypti and drosophila melanogaster. | the physiological role of carbonic anhydrases in ph and ion regulation is crucial to insect survival. we examined the toxic and neurophysiological effects of five carbonic anhydrase inhibitors (cais) against aedes aegypti. the 24 h larvicidal toxicities followed this rank order of potency: dichlorphenamide > methazolamide > acetazolamide = brinzolamide = dorzolamide. larvicidal activity increased modestly in longer exposures, and affected larvae showed attenuated responses to probing without ove ... | 2016 | 28025488 |
| exotic mosquito threats require strategic surveillance and response planning. | mosquito-borne diseases caused by endemic pathogens such as ross river, barmah forest and murray valley encephalitis viruses are an annual concern in new south wales (nsw), australia. more than a dozen mosquito species have been implicated in the transmission of these pathogens, with each mosquito occupying a specialised ecological niche that influences their habitat associations, host feeding preferences and the environmental drivers of their abundance. the nsw arbovirus surveillance and mosqui ... | 2016 | 27997935 |
| papular urticaria: a review of causal agents in colombia. | papular urticaria is a chronic allergic reaction induced by insect bites, which is common in the tropics. the objective of this review was to deepen on epidemiological and immunological aspects of this disease, focused on data published in latin american countries.we conducted a non-systematic review of the literature through electronic search on the epidemiology of papular urticaria, the entomological characteristics of the causative agents and associated immunological mechanisms.several report ... | 2016 | 27992990 |
| cocos nucifera coir-mediated green synthesis of pd nps and its investigation against larvae and agricultural pest. | in recent decades, several scientists focused their process towards nanoparticles synthesis by using various sustainable approaches. cocos nucifera (c. nucifera) was one of the versatile trees in tropical regions which also can act as a thrust quencher in all over the world. cocos nucifera coir was one of the waste by-products in all coconut-refining industries and with the help c. nucifera coir, palladium nanoparticles (pd nps) were synthesized. green-synthesized spherical-shape pd nps were ove ... | 2016 | 27908201 |
| larvicidal activity of green synthesized silver nanoparticles using excoecaria agallocha l. (euphorbiaceae) leaf extract against aedes aegypti. | green synthesis of silver nanoparticles (agnps) using plant extracts has been achieved by eco-friendly reducing and capping agents. the present study was conducted to evaluate the larvicidal efficacies of agnps synthesized using aqueous leaf extracts of excoecaria agallocha against dengue vector, aedes aegypti. the 3(rd) and 4(th) instar larvae of a. aegypti were exposed to various concentrations of aqueous extracts of e. agallocha, synthesized agnps and also crude solvent extracts (methanol and ... | 2016 | 27906138 |
| spatial pattern evolution of aedes aegypti breeding sites in an argentinean city without a dengue vector control programme. | the main objective of this study was to obtain and analyse the space-time dynamics of aedes aegypti breeding sites in clorinda city, formosa province, argentina coupled with landscape analysis using the maximum entropy approach in order to generate a dengue vector niche model. in urban areas, without vector control activities, 12 entomologic (larval) samplings were performed during three years (october 2011 to october 2014). the entomologic surveillance area represented 16,511 houses. predictive ... | 2016 | 27903056 |
| wolbachia suppresses cell fusing agent virus in mosquito cells. | the genus flavivirus contains a large number of positive-sense ssrna viruses. while some are transmitted by mosquitoes or other arthropods and are pathogenic to humans and animals (e.g. dengue and zika viruses), some are insect-specific and do not replicate in vertebrate cells. these are known as insect-specific flaviviruses (isfs). cell fusing agent virus (cfav) was the first described isf, which was detected in an aedes aegypti cell line, aag2. here, we investigated the effect of wolbachia, a ... | 2016 | 27902358 |
| fern-synthesized silver nanocrystals: towards a new class of mosquito oviposition deterrents? | mosquitoes act as vectors of devastating pathogens and parasites, representing a key threat for millions of humans and animals worldwide. eco-friendly control tools are urgently required. we proposed a novel method of fern-mediated biosynthesis of silver nanoparticles (agnp) using dicranopteris linearis, acting as a reducing and capping agent. agnp were characterized by uv-vis spectroscopy, fourier transform infrared (ftir) spectroscopy, scanning electron microscopy (sem), energy-dispersive x-ra ... | 2016 | 27892872 |
| 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 | |
| [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 |
| housing improvement: a novel paradigm for urban vector-borne disease control? | 2016 | 27864518 | |
| 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 |
| 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 |
| collagen extract from marine finfish scales as a potential mosquito larvicide. | collagen is a peptide being utilized in medical, health care, nutrient and decorative industry. marine fish scales are one of the good sources of collagen, which is extracted using the advanced enzymatic digestion method. scales of sardinella longiceps (oil sardine) have a high proportion of collagen. this product is well absorbed with broad adaptive values that encourage the inclusion of nutriments. in this paper, we have performed the isolation and characterization of collagen from s. longicep ... | 2016 | 27804059 |
| controlling aedes aegypti in cryptic environments with manually carried ultra-low volume and mist blower pesticide applications. | because aedes aegypti , a vector of dengue, chikungunya, and zika viruses, exhibits resting and reproductive behaviors that present challenges to control them, pesticide application equipment available for vector control must be evaluated for their ability to control this species in a variety of cryptic environments. five types of pesticide sprayers, representing 3 spray technologies (1 mister, 2 ultra-low volume [ulv] cold foggers, and 2 ulv thermal foggers), were evaluated for their ability to ... | 2016 | 27802406 |
| operational aspects of the centers for disease control and prevention autocidal gravid ovitrap. | dengue viruses cause hundreds of millions of infections every year in tropical and subtropical countries. unfortunately, there is not a single universal vector control method capable of suppressing aedes aegypti (l.) populations. amongst novel control tools or approaches are various types of traps targeting gravid females or their eggs. here, we provide details of the operational use of the centers for disease control and prevention autocidal gravid ovitrap (cdc-ago trap) for the surveillance an ... | 2016 | 27802402 |
| comparative excito-repellency of three cambodian plant-derived extracts against two mosquito vector species, aedes aegypti and anopheles minimus. | a study of the behavioral responses of aedes aegypti and anopheles minimus to 3 cambodian plant extracts at 3 different concentrations (1%, 2.5%, and 5%) was performed using an excito-repellency test system. these 3 plants were strophanthus scandens, capparis micracantha, and dioscorea hispida, selected according to traditional healer's knowledge, bibliographic studies and market surveys. results showed that s. scandens leaves' hexane extract was the only one to exert repellency against ae. aegy ... | 2016 | 27802401 |
| evaluation of a noncontact, alternative mosquito repellent assay system. | a novel noncontact repellency assay system (ncras) was designed and evaluated as a possible alternative method for testing compounds that repel or inhibit mosquitoes from blood feeding. deet and aedes aegypti were used in a controlled laboratory setting. using 2 study designs, a highly significant difference were seen between deet-treated and untreated skin placed behind the protective screens, indicating that deet was detected and was acting as a deterrence to mosquito landing and probing behav ... | 2016 | 27802399 |
| morphological differentiation of the eggs of north american container-inhabiting aedes mosquitoes. | aedes aegypti , ae. albopictus, ae. japonicus japonicus, and ae. triseriatus eggs are described with the aid of color images and images from scanning electron microscopy. all eggs were broadly cigar shaped with ae. triseriatus and ae. j japonicus eggs being dull or matte black, while ae. albopictus and ae. aegypti eggs were shiny jet black. aedes triseriatus eggs were lighter in color and had a rougher appearance when compared to those of ae. j. japonicus. aedes albopictus and ae. aegypti eggs c ... | 2016 | 27802396 |
| 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 |
| 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 |
| mosquitoes host communities of bacteria that are essential for development but vary greatly between local habitats. | mosquitoes are insects of interest because several species vector disease-causing pathogens to humans and other vertebrates. we previously reported that mosquitoes from long-term laboratory cultures require living bacteria in their gut to develop, but development does not depend on particular species of bacteria. here, we focused on three distinct but interrelated areas of study to better understand the role of bacteria in mosquito development by studying field and laboratory populations of aede ... | 2016 | 27718295 |
| light-driven processes control both rhodopsin maturation and recycling in mosquito photoreceptors. | many invertebrates carry out a daily cycle of shedding and rebuilding of the photoreceptor's photosensitive rhabdomeric membranes. the mosquito aedes aegypti shows a robust response, losing nearly all aaop1 rhodopsin from the rhabdomeric membranes during the shedding process at dawn. here, we made use of aaop1 antibodies capable of distinguishing newly synthesized, glycosylated rhodopsin from mature nonglycosylated rhodopsin to characterize the fate of aaop1 during the shedding and rebuilding pr ... | 2016 | 27798185 |
| melaleuca quinquenervia (cav.) s.t. blake (myrtales: myrtaceae): natural alternative for mosquito control. | to evaluate an essential oil with larvicide, adulticide and growth inhibitory activity against aedes aegypti, aedes albopictus and culex quinquefasciatus mosquitoes, of medical importance. | 2016 | 27794392 |
| identification and analysis of a processed cytochrome p450 pseudogene of the disease vector aedes aegypti. | to clone cytochrome p450 from aedes aegypti (ae. aegypti) and determine the characteristics using bioinformatics tools. | 2016 | 27794391 |
| global genetic diversity of aedes aegypti. | mosquitoes, especially aedes aegypti, are becoming important models for studying invasion biology. we characterized genetic variation at 12 microsatellite loci in 79 populations of ae. aegypti from 30 countries in six continents, and used them to infer historical and modern patterns of invasion. our results support the two subspecies ae. aegypti formosus and ae. aegypti aegypti as genetically distinct units. ae. aegypti aegypti populations outside africa are derived from ancestral african popula ... | 2016 | 27671732 |
| identification and expression analysis of two 14-3-3 proteins in the mosquito aedes aegypti, an important arboviruses vector. | the 14-3-3 proteins are evolutionarily conserved acidic proteins that form a family with several isoforms in many cell types of plants and animals. in invertebrates, including dipteran and lepidopteran insects, only two isoforms have been reported. 14-3-3 proteins are scaffold molecules that form homo- or heterodimeric complexes, acting as molecular adaptors mediating phosphorylation-dependent interactions with signaling molecules involved in immunity, cell differentiation, cell cycle, prolifera ... | 2016 | 27592842 |
| dengue in a changing climate. | dengue is the world's most important arboviral disease in terms of number of people affected. over the past 50 years, incidence increased 30-fold: there were approximately 390 million infections in 2010. globalization, trade, travel, demographic trends, and warming temperatures are associated with the recent spread of the primary vectors aedes aegypti and aedes albopictus and of dengue. overall, models project that new geographic areas along the fringe of current geographic ranges for aedes will ... | 2016 | 27475051 |
| [translation into practice of empowerment strategies for dengue prevention: facilitators and barriers]. | objective to identify facilitators and barriers to the process of translating community empowerment strategies into the practice of the national aedes aegypti control program in cuba. methods a case study of the process was conducted from 2005 to 2009 at national and provincial levels of the control program. data from participant observation, in-depth interviews, and document analysis were triangulated and analyzed inductively and deductively. results the main facilitators identified included a ... | 2016 | 27754520 |
| isolation and identification of mosquito (aedes aegypti) biting-deterrent compounds from the native american ethnobotanical remedy plant hierochloë odorata (sweetgrass). | hierochloë odorata (l.) p. beauv. (poaceae), commonly known as sweetgrass, has documented use as an insect repellent by the flatheads of montana and blackfoot of alberta. both the flatheads of montana and blackfoot of alberta would use braided plant material in a sachet in clothing or burn them from one end as incense, air/clothing freshener, and insect repellent. this study evaluated the insect-repellent properties of this plant using an in vitro mosquito aedes aegypti feeding bioassay-directed ... | 2016 | 27744691 |
| dengue related osteonecrosis of the maxillary dento-alveolar bone. | dengue is a mosquito transmitted flaviviral infection which can give rise to severe haemorrhage (dengue haemorrhagic fever/dhf) and with capillary leakage induces hypovolemic shock (dengue shock syndrome/dss). although dengue symptoms and complications have been known for many decades there has only been one documented case of osteonecrosis of the maxilla which was treated by excision of the necrotic bone. in this case of dengue infection, extensive maxillary osteonecrosis and minimal root resor ... | 2016 | 27743399 |
| pyrethroid resistance in aedes aegypti and aedes albopictus: important mosquito vectors of human diseases. | aedes aegypti and a. albopictus mosquitoes are vectors of important human disease viruses, including dengue, yellow fever, chikungunya and zika. pyrethroid insecticides are widely used to control adult aedes mosquitoes, especially during disease outbreaks. herein, we review the status of pyrethroid resistance in a. aegypti and a. albopictus, mechanisms of resistance, fitness costs associated with resistance alleles and provide suggestions for future research. the widespread use of pyrethroids ha ... | 2016 | 27742355 |
| effect of heavy-equipment aided environmental nebulization on aedes aegypti vectors of dengue, zika and chikungunya in são paulo, brazil. | the control of dengue constitutes a great challenge for public health; however, the methods normally used have shown themselves to be insufficient to keep the indices of infestation of aedes aegypti under control. recently, beyond the large number of cases and deaths associated with dengue, new risks have arisen such as those represented by chikungunya fever and zika. in the light of the great significance of these problems within the public health context, two areas in a municipality in the int ... | 2016 | 27974058 |
| detecting multiple dna human profile from a mosquito blood meal. | criminal traces commonly found at crime scenes may present mixtures from two or more individuals. the scene of the crime is important for the collection of various types of traces in order to find the perpetrator of the crime. thus, we propose that hematophagous mosquitoes found at crime scenes can be used to perform genetic testing of human blood and aid in suspect investigation. the aim of the study was to obtain a single aedes aegypti mosquito profile from a human dna mixture containing genet ... | 2016 | 27706606 |
| excito-repellency of citrus hystrix dc leaf and peel essential oils against aedes aegypti and anopheles minimus (diptera: culicidae), vectors of human pathogens. | the essential oils of kaffir lime (citrus hystrix dc.) at four different concentrations (0.5, 1.0, 2.5, and 5.0% v/v) were studied for their repellency, excitation, and knockdown properties against laboratory strains of aedes aegypti (l.) and anopheles minimus theobald using an excito-repellency test system. both contact and noncontact escape responses to leaf- and peel-derived kaffir lime oils were observed. comparing unadjusted escape responses for an. minimus, leaf oil had strong combined irr ... | 2016 | 27694144 |
| discovery of selective inhibitors targeting acetylcholinesterase 1 from disease-transmitting mosquitoes. | vector control of disease-transmitting mosquitoes is increasingly important due to the re-emergence and spread of infections such as malaria and dengue. we have conducted a high throughput screen (hts) of 17,500 compounds for inhibition of the essential ache1 enzymes from the mosquitoes anopheles gambiae and aedes aegypti. in a differential hts analysis including the human ache, several structurally diverse, potent, and selective noncovalent ache1 inhibitors were discovered. for example, a pheno ... | 2016 | 27598521 |
| proteomic analysis of aedes aegypti midgut during post-embryonic development and of the female mosquitoes fed different diets. | in this work we analyzed protein expression in the aedes aegypti midgut during the larval (fourth instar, l4), pupal, and adult stages [including newly emerged (ne), sugar-fed (sf) and blood-fed (bf) females]. two-dimensional electrophoresis showed 13 spots in the midgut of larvae, 95 in the midgut of pupae, 90 in the midgut of ne, and 76 in the midgut of sf or bf females. in the larval midguts, high serpin expression was noted, while in the pupae, protein abundance was lower than in the ne, sf, ... | 2016 | 27597118 |
| egg hatching and survival of immature stages of aedes aegypti (diptera: culicidae) under natural temperature conditions during the cold season in buenos aires, argentina. | in temperate regions, the seasonal dynamics of aedes aegypti (l.) (diptera: culicidae) is mainly influenced by temperature. it is assumed that, during the winter season, the population remains as eggs and that the development and population growth of surviving eggs begin during the following spring. the aim of the current study was to assess egg hatching of ae. aegypti during the winter in buenos aires city (argentina), and analyze the survival of immature stages. the experiments consisted of im ... | 2016 | 27576509 |
| mosquito c-type lectins maintain gut microbiome homeostasis. | the long-term evolutionary interaction between the host immune system and symbiotic bacteria determines their cooperative rather than antagonistic relationship. it is known that commensal bacteria have evolved a number of mechanisms to manipulate the mammalian host immune system and maintain homeostasis. however, the strategies employed by the microbiome to overcome host immune responses in invertebrates still remain to be understood. here, we report that the gut microbiome in mosquitoes utilize ... | 2016 | 27572642 |
| toxicity and larvicidal activity of podophyllum-based lignans against aedes aegypti (diptera: culicidae). | aedes aegypti l. (diptera: culicidae) is a mosquito species that has adapted to urban environments and is the main vector of dengue viruses. because of the increasing incidence of dengue, a more environmentally acceptable insecticide needs to be found. natural products have been and continue to be an important source of leading compounds that can be modified in order to develop new drugs. the lignan family of natural products includes compounds with a diverse spectrum of biological activity. pod ... | 2016 | 27561675 |
| eggs viability of aedes aegypti linnaeus (diptera, culicidae) under different environmental and storage conditions in manaus, amazonas, brazil. | the viability of aedes aegypti eggs was assessed in the amazon region. the eggs were maintained under different conditions: indoors (insectarium) and outdoors (natural environment), as well as in different storage types (plastic cup, paper envelope, plastic bag) for different days. egg viability was measured as the mean of hatchings observed from egg-bearing sheets of filter paper immersed in water, using three sheets randomly selected from each storage type and at both sites. there were signifi ... | 2016 | 27533732 |
| determination of juvenile hormone titers by means of lc-ms/ms/ms and a juvenile hormone-responsive gal4/uas system in aedes aegypti mosquitoes. | in anautogenous mosquitoes, juvenile hormone iii (jh) plays an essential role in female post-eclosion (pe) development, preparing them for subsequent blood feeding and egg growth. we re-examined the jh titer during the reproductive cycle of female aedes aegypti mosquitoes. using liquid chromatography coupled with triple tandem mass spectrometry (lc-ms/ms/ms), we have shown that it reaches its peak at 48-54 h pe in the female hemolymph and at 72 h pe in whole body extracts. this method represents ... | 2016 | 27530057 |
| aedes aegypti suppression in the americas: historical perspectives. | 2016 | 27529102 | |
| phylogenetic analysis of the atp-binding cassette transporter family in three mosquito species. | the atp-binding cassette (abc) transporter family functions in the atp-dependent transportation of various substrates across biological membranes. abc proteins participate in various biological processes and insecticide resistance in insects, and are divided into eight subfamilies (a-h). mosquitoes are important vectors of human diseases, but the mechanism by which the abc transporter family evolves in mosquitoes is unknown. in this study, we classified and compared the abc transporter families ... | 2016 | 27521922 |
| solution nuclear magnetic resonance studies of sterol carrier protein 2 like 2 (scp2l2) reveal the insecticide specific structural characteristics of scp2 proteins in aedes aegypti mosquitoes. | sterol carrier protein 2 like 2 from aedes aegypti (aescp2l2) plays an important role in lipid transport in mosquitoes for its routine metabolic processes. repeated unsuccessful attempts to crystallize ligand free scp2l2 prompted us to undertake nuclear magnetic resonance (nmr) spectroscopy to determine its three-dimensional structure. we report here the three-dimensional structures and dynamics of apo-aescp2l2 and its complex with palmitate. the (15)n heteronuclear single-quantum coherence spec ... | 2016 | 27508310 |
| conidiobolus macrosporus (entomophthorales), a mosquito pathogen in central brazil. | a new fungal pathogen of culicinae (diptera: culicidae) adults, conidiobolus macrosporus (entomophthorales: ancylistaceae), was detected and isolated during a survey of mosquito pathogens close to the city of aruanã, goiás state, in december 2014. the morphological characteristics of c. macrosporus are presented, and reasons for some uncertainty about this identification are discussed. the pathogenicity and high virulence of this fungus for aedes aegypti were confirmed in laboratory conditions. ... | 2016 | 27506454 |
| identification of aacasps7, an effector caspase in aedes albopictus. | aedes albopictus mosquito is a vector of various arboviruses and is becoming a significant threat to public health due to its rapid global expansion. several reports suggest that apoptosis could be a factor limiting arbovirus infection in mosquitoes. thus, it is significant to identify apoptosis pathway and study the correlation between apoptosis and virus infection in mosquitoes. apoptosis is a type of programmed cell death that plays a vital role in immunity, development, and tissue homeostasi ... | 2016 | 27502418 |
| larvicidal activity of natural and modified triterpenoids against aedes aegypti (diptera: culicidae). | insecticide resistance to commonly used substances demands new molecules for the chemical control of the dengue vector aedes aegypti. because natural product sources have been an alternative to obtain larvicidal compounds, the aim of this study was to evaluate the triterpenoids betulinic (ba) and ursolic (ua) acids and their semi-synthetic derivatives against larval ae. aegypti. ba, ua, ten derivatives modified at the c-3 position and a positive control (diflubenzuron) were evaluated. larvicidal ... | 2016 | 27501778 |
| coexistence of aedes aegypti and aedes albopictus (diptera: culicidae) in peninsular florida two decades after competitive displacements. | the spread of aedes albopictus (skuse) eastward in the mid-1980s from its initial establishment in houston, tx, was associated with rapid declines and local disappearances of aedes aegypti (l.) in gulf coast states and florida where annual larval surveillance during the early 1990s described temporal and spatial patterns of competitive displacements in cemeteries and tire shops. approximately 20 yr later in 2013-2014, we re-visited former collection sites and sampled aquatic immatures of these t ... | 2016 | 27493253 |
| microrna-309 targets the homeobox gene six4 and controls ovarian development in the mosquito aedes aegypti. | obligatory blood-triggered reproductive strategy is an evolutionary adaptation of mosquitoes for rapid egg development. it contributes to the vectorial capacity of these insects. therefore, understanding the molecular mechanisms underlying reproductive processes is of particular importance. here, we report that microrna-309 (mir-309) plays a critical role in mosquito reproduction. a spatiotemporal expression profile of mir-309 displayed its blood feeding-dependent onset and ovary-specific manife ... | 2016 | 27489347 |
| the sex locus is tightly linked to factors conferring sex-specific lethal effects in the mosquito aedes aegypti. | in many taxa, sex chromosomes are heteromorphic and largely non-recombining. evolutionary models predict that spread of recombination suppression on the y chromosome is fueled by the accumulation of sexually antagonistic alleles in close linkage to the sex determination region. however, empirical evidence for the existence of sexually antagonistic alleles is scarce. in the mosquito aedes aegypti, the sex-determining chromosomes are homomorphic. the region of suppressed recombination, which surro ... | 2016 | 27485667 |