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effect of wolbachia walbb on a positive-sense rna negev-like virus: a novel virus persistently infecting aedes albopictus mosquitoes and cells.the aedes aegypti mosquito is the primary vector of several medically important arboviruses. the endosymbiotic bacterium, wolbachia pipientis, has emerged as a means of blocking transmission of arboviruses such as dengue and zika viruses. one wolbachia strain that has shown potential in field trials is walbb, a naturally occurring wolbachia strain of the asian tiger mosquito aedes albopictus. when transinfected into ae. aegypti, walbb exhibits strong virus inhibition. in addition to modulating a ...201931846415
vector distribution and transmission risk of the zika virus in south and central america.zika is of great medical relevance due to its rapid geographical spread in 2015 and 2016 in south america and its serious implications, for example, certain birth defects. recent epidemics urgently require a better understanding of geographic patterns of the zika virus transmission risk. this study aims to map the zika virus transmission risk in south and central america. we applied the maximum entropy approach, which is common for species distribution modelling, but is now also widely in use fo ...201931745446
management of insecticide resistance in the major aedes vectors of arboviruses: advances and challenges.the landscape of mosquito-borne disease risk has changed dramatically in recent decades, due to the emergence and reemergence of urban transmission cycles driven by invasive aedes aegypti and ae. albopictus. insecticide resistance is already widespread in the yellow fever mosquito, ae. aegypti; is emerging in the asian tiger mosquito ae. albopictus; and is now threatening the global fight against human arboviral diseases such as dengue, yellow fever, chikungunya, and zika. because the panel of i ...201931600206
update on the distribution of aedes albopictus (diptera: culicidae) in misiones, argentina.the asian tiger mosquito ( aedes albopictus, diptera: culicidae) has spread rapidly in the last 30 years from its native region in southeast asia. in argentina, studies on its potential distribution suggest that this species could be found in temperate zones of the province of buenos aires. however, since its initial detection in 1998 ae. albopictus is bounded to the subtropical province of misiones. to evaluate the presence and abundance of ae. albopictus in the northeast of argentina, we preli ...201931531624
identification of human skin bacteria attractive to the asian tiger mosquito.aedes albopictus is a vector of arboviruses and filarial nematodes. originating from asia, this mosquito has rapidly expanded its geographical distribution and colonized areas across both temperate and tropical regions. due to the increase in insecticide resistance, the use of environmentally friendly vector control methods is encouraged worldwide. using methods based on semiochemicals in baited traps are promising for management of mosquito populations. interestingly, human skin microbiota was ...201931464044
a novel densovirus isolated from the asian tiger mosquito displays varied pathogenicity depending on its host species.mosquito-borne viral diseases (mbvds) continue to pose a significant global public health burden. mosquito control remains a core intervention strategy in integrated mosquito management (imm) programs to reduce the transmission of mbvds. mosquito densoviruses (mdvs) are mosquito-specific entomopathogenic viruses, and their attractive biological and pathogenic characteristics make mdvs potential biological control agents as alternatives to traditional chemical pesticides. however, different viral ...201931333635
development of a degree-day model to predict egg hatch of aedes albopictus.aedes albopictus, the asian tiger mosquito, is an important nuisance mosquito species and known vector of arboviruses such as dengue, chikungunya, and zika. despite their cosmopolitan distribution around the world, there is a paucity of accurate predictive models based on rates of development at different temperatures (degree-day models). these types of models can benefit mosquito control districts by predicting when to target early-season larval development, when populations are likely at their ...201931922937
high genetic diversity but no geographical structure of aedes albopictus populations in réunion island.in recent years, the asian tiger mosquito aedes albopictus has emerged as a species of major medical concern following its global expansion and involvement in many arbovirus outbreaks. on réunion island, ae. albopictus was responsible for a large chikungunya outbreak in 2005-2006 and more recently an epidemic of dengue which began at the end of 2017 and is still ongoing at the time of writing. this dengue epidemic has seen a high number of human cases in south and west coastal regions, while few ...201931856896
pathogenicity and transgenerational effects of metarhizium anisopliae on the demographic parameters of aedes albopictus (culicidae: diptera).dengue fever is a vector-borne infectious disease that spreads swiftly and threatens human lives in several tropical countries. most of the strategies employed for the control of aedes albopictus (skuse) involve synthetic chemicals. the indiscriminate use of synthetic chemicals has led to the development of resistance and is unsafe for human and environmental health. therefore, there is a need to develop ecologically safe tactics, such as the use of the entomopathogenic fungus (epf) metarhizium ...201931819965
potential effects of heat waves on the population dynamics of the dengue mosquito aedes albopictus.extreme weather events affect the development and survival of disease pathogens and vectors. our aim was to investigate the potential effects of heat waves on the population dynamics of asian tiger mosquito (aedes albopictus), which is a major vector of dengue and zika viruses. we modeled the population abundance of blood-fed mosquito adults based on a mechanistic population model of ae. albopictus with the consideration of diapause. using simulated heat wave events derived from a 35-year histor ...201931276467
first detection of the asian tiger mosquito, aedes (stegomyia) albopictus (diptera: culicidae), in tunisia.aedes albopictus (skuse) is a widespread invasive mosquito vector species with a distribution including tropical and temperate climates; its range is still expanding. aedes albopictus populations were recently detected in morocco and algeria, the countries neighboring tunisia, but never in tunisia. in 2018, we initiated an intensive field study using bg-sentinel traps, ovitraps, larval surveys, and citizens' reports to determine whether ae. albopictus populations exist in tunisia. in october 201 ...201931220308
enhancing attraction of the vector mosquito aedes albopictus by using a novel synthetic odorant blend.the asian tiger mosquito, aedes albopictus, an increasingly relevant arboviral vector, has spread worldwide. however, currently available tools are limited in terms of effective monitoring of vector populations and accurate determination of the extent of viral transmission, especially before and during outbreaks. therefore, it is essential to develop novel monitoring and surveillance tools, particularly those that target adult mosquitoes and enhance the trapping efficiency for ae. albopictus.201931362759
tiger in the sun: a report of aedes albopictus in jamaica.this report describes the presence of aedes albopictus (skuse) in jamaica. the adults were found while conducting an ongoing survey of mosquitoes on the island. specimens were collected using a combination of modified center for disease control (cdc) miniature light traps and bg sentinel traps. a total of six adult female ae. albopictus mosquitoes were collected at two different locations in october of 2018. this finding increases the number of aedes mosquito species on the island bringing with ...201931351894
cold adaptation in the asian tiger mosquito's native range precedes its invasion success in temperate regions.adaptation to environmental conditions within the native range of exotic species can condition the invasion success of these species outside their range. the striking success of the asian tiger mosquito, aedes albopictus, to invade temperate regions has been attributed to the winter survival of diapause eggs in cold environments. in this study, we evaluate genetic polymorphisms (snps) and wing morphometric variation among three biogeographical regions of the native range of a. albopictus. recons ...201931313825
a novel metric reveals biotic resistance potential and informs predictions of invasion success.invasive species continue to proliferate and detrimentally impact ecosystems on a global scale. whilst impacts are well-documented for many invaders, we lack tools to predict biotic resistance and invasion success. biotic resistance from communities may be a particularly important determinant of the success of invaders. the present study develops traditional ecological concepts to better understand and quantify biotic resistance. we quantified predation towards the highly invasive asian tiger mo ...201931653905
population genetics of aedes albopictus (diptera: culicidae) in its native range in lao people's democratic republic.the asian tiger mosquito, aedes (stegomyia) albopictus (skuse) is an important worldwide invasive species and can be a locally important vector of chikungunya, dengue and, potentially, zika. this species is native to southeast asia where populations thrive in both temperate and tropical climates. a better understanding of the population structure of ae. albopictus in lao pdr is very important in order to support the implementation of strategies for diseases prevention and vector control. in the ...201931610813
fat body-specific vitellogenin expression regulates host-seeking behaviour in the mosquito aedes albopictus.the high vector competence of mosquitoes is intrinsically linked to their reproductive strategy because females need a vertebrate blood meal to develop large batches of eggs. however, the molecular mechanisms and pathways regulating mosquito host-seeking behaviour are largely unknown. here, we test whether host-seeking behaviour may be linked to the female's energy reserves, with low energy levels triggering the search for a nutrient-rich blood meal. our results demonstrate that sugar feeding de ...201931071075
predicting the success of an invader: niche shift versus niche conservatism.invasive species can encounter environments different from their source populations, which may trigger rapid adaptive changes after introduction (niche shift hypothesis). to test this hypothesis, we investigated whether postintroduction evolution is correlated with contrasting environmental conditions between the european invasive and source ranges in the asian tiger mosquito aedes albopictus. the comparison of environmental niches occupied in european and source population ranges revealed more ...201931788205
patterns of spatial genetic structures in aedes albopictus (diptera: culicidae) populations in china.the asian tiger mosquito, aedes albopictus, is one of the 100 worst invasive species in the world and the vector for several arboviruses including dengue, zika and chikungunya viruses. understanding the population spatial genetic structure, migration, and gene flow of vector species is critical to effectively preventing and controlling vector-borne diseases. little is known about the population structure and genetic differentiation of native ae. albopictus in china. the aim of this study was to ...201931752961
aedes albopictus body size differs across neighborhoods with varying infrastructural abandonment.mosquitoes pose an increasing risk in urban landscapes, where spatial heterogeneity in juvenile habitat can influence fine-scale differences in mosquito density and biting activity. we examine how differences in juvenile mosquito habitat along a spectrum of urban infrastructure abandonment can influence the adult body size of the invasive tiger mosquito, aedes albopictus (skuse) (diptera: culicidae). adult ae. albopictus were collected across 3 yr (2015-2017) from residential blocks in baltimore ...201931584098
high-throughput genotyping of a full voltage-gated sodium channel gene via genomic dna using target capture sequencing and analytical pipeline monas to discover novel insecticide resistance mutations.in insects, the voltage-gated sodium channel (vgsc) is the primary target site of pyrethroid insecticides. various amino acid substitutions in the vgsc protein, which are selected under insecticide pressure, are known to confer insecticide resistance. in the genome, the vgsc gene consists of more than 30 exons sparsely distributed across a large genomic region, which often exceeds 100 kbp. due to this complex genomic structure, it is often challenging to genotype full coding nucleotide sequences ...201931738756
juvenile hormone iii but not 20-hydroxyecdysone regulates the embryonic diapause of aedes albopictus.diapause is an alternative developmental trajectory allowing insects to enter dormancy and persist through predictable periods of seasonally unfavorable conditions. this crucial ecological adaptation defines the geographic and seasonal abundance of many insect pollinators, pests, and vectors. understanding the hormonal changes by which insects coordinate the perception of external, diapause-inducing cues with the physiological mechanisms that lead to developmental arrest is a long-standing goal ...201931708801
[invasive mosquitoes in switzerland: current situation].switzerland is now home to three invasive alien mosquito species: aedes albopictus (tiger mosquito), ae. japonicus (japanese mosquito) and ae. koreicus (korean mosquito). the most important is the tiger mosquito that arrived in ticino in 2003. active during the day, it is known to be the vector of dengue fever, chikungunya, zika virus and filaria of the genus dirofilaria. since 2013 it has been discovered in north of the alps. its progress continues and it will soon reach french-speaking switzer ...201931050237
simplification of vector communities during suburban succession.suburbanization is happening rapidly on a global scale, resulting in changes to the species assemblages present in previously undeveloped areas of land. community-level changes after anthropogenic land-use change have been studied in a variety of organisms, but the effects on arthropods of medical and veterinary importance remain poorly characterized. shifts in diversity, abundance, and community composition of such arthropods, like mosquitoes, can significantly impact vector-borne disease dynam ...201931042734
the role of temperature in affecting carry-over effects and larval competition in the globally invasive mosquito aedes albopictus.ectotherms, like mosquitoes, have evolved specific responses to variation in environmental conditions like temperature, and these responses could confer a fitness benefit or cost when carried-over to different life stages. however, effects of temperature on animals with complex life-cycles often only focus on part of their life-cycle, or only consider how single aspects of life-history may carry over to new stages. herein we investigated how temperature affects intraspecific larval competition a ...201930890161
monitoring of alien mosquitoes of the genus aedes (diptera: culicidae) in austria.systematic, continuous mosquito surveillance is considered the most reliable tool to predict the spread and establishment of alien mosquito species such as the asian tiger mosquito (aedes albopictus), japanese bush mosquito (aedes japonicus), and the transmission risk of mosquito-borne arboviruses to humans. only single individuals of ae. albopictus have been found in austria so far. however, it is likely that the species will be able to establish populations in the future due to global trade an ...201930877440
human, nonhuman primate, and bat cells are broadly susceptible to tibrovirus particle cell entry.in 2012, the genome of a novel rhabdovirus, bas-congo virus (basv), was discovered in the acute-phase serum of a congolese patient with presumed viral hemorrhagic fever. in the absence of a replicating virus isolate, fulfilling koch's postulates to determine whether basv is indeed a human virus and/or pathogen has been impossible. however, experiments with vesiculoviral particles pseudotyped with bas-congo glycoprotein suggested that basv particles can enter cells from multiple animals, includin ...201931105663
the first molecular and phenotypic characterization of the invasive population of aedes albopictus (diptera: culicidae) from the central balkans.aedes (stegomya) albopictus (skuse 1984), the asian tiger mosquito, represents the most invasive and one of the medically most important mosquito vectors. although native to south east asia, the species has recently spread globally, and was registered in the city of novi sad (serbia, central balkans) in august 2018. we characterized the invasive population using phenotypic (wing size and shape) and molecular (nuclear, internal transcribed spacer 2- its2, and mitochondrial, cytochrome c oxidase s ...201931100120
tolerance of three aedes albopictus strains (diptera: culicidae) from different geographical origins towards winter temperatures under field conditions in northern germany.the continuing spread of the asian tiger mosquito aedes albopictus, a vector of many arboviruses and some dirofilarial worms, in europe calls for advanced investigations on its ecological ability to establish and overwinter in temperate, more northern geographic regions. to meet this purpose, eggs of ae. albopictus laboratory strains of tropical, subtropical and temperate origin were exposed to field conditions during one or two winter seasons in northeastern germany. after 1 to 16 weeks of outd ...201931310645
[first detections of aedes albopictus (tiger mosquito) in the region of extremadura, west of spain]. 201930591308
[exanthema after travel abroad].in view of globalization and the associated transport of goods as well as rising travel activity, imported infections with subtropical and tropical pathogens are increasing in germany. in returning travelers presenting with fever, general symptoms and skin rash, a number of diseases need to be considered. the clinical appearance of the skin rash, accurate travel history and epidemiological information on country-specific risks are helpful in making the correct diagnosis. in this article we provi ...201931598746
microclimate and larval habitat density predict adult aedes albopictus abundance in urban areas.the asian tiger mosquito, aedes albopictus, transmits several arboviruses of public health importance, including chikungunya and dengue. since its introduction to the united states in 1985, the species has invaded more than 40 states, including temperate areas not previously at risk of aedes-transmitted arboviruses. mathematical models incorporate climatic variables in predictions of site-specific ae. albopictus abundances to identify human populations at risk of disease. however, these models r ...201931190685
gamma radiation sterilization dose of adult males in asian tiger mosquito pupae.the pathogen-carrying tiger mosquito, aedes albopictus, has spread from the western pacific and southeast asia to europe, africa, the middle east, north and south america, and the caribbean. this species of mosquito transmits arboviral infections, such as yellow fever, chikungunya, dengue, zika, and several encephalitides. the objective of this research was to provide a radiation dose inducing sterilization in adult male ae. albopictus in the pupal stage. a cobalt-60 source of gamma radiation at ...201930965594
on lifestyle trends, health and mosquitoes: formulating welfare levels for control of the asian tiger mosquito in greece.the expansion of urban ecosystems and climate change, both outcomes of massive lifestyle changes, contribute to a series of side effects such as environmental deterioration, spread of diseases, increased greenhouse gas emissions and introduction of invasive species. in the case of the athens metropolitan area, an invasive mosquito species-the asian tiger mosquito (aedes albopictus)-has spread widely in the last decade. this spread is favoured within urban environments and is also affected by cha ...201931163025
exploring public preferences, priorities, and policy perspectives for controlling invasive mosquito species in greece.climate change, urbanization, and financial crisis have created a dramatic mixture of challenges in southern europe, increasing further the risks of transmission of new vector-borne diseases. in the last decade, there has been a wide spread of an invasive mosquito species aedes albopictus, commonly known as the asian tiger mosquito, in various urban ecosystems of greece accompanied by greater risks of infectious diseases, higher nuisance levels, and increased expenses incurred for their control. ...201931109075
limited risk of zika virus transmission by five aedes albopictus populations from spain.aedes albopictus, the asian tiger mosquito, is an exotic invasive species in europe. it has substantial public health relevance due to its potential role in transmitting several human pathogens. out of the european countries, spain has one of the highest risk levels of autochthonous arbovirus transmission due to both the high density of ae. albopictus and the extensive tourist influx from vector-endemic areas. this study aims to investigate the susceptibility of five ae. albopictus populations f ...201930922370
differentiation of long non-coding rna and mrna expression profiles in male and female aedes albopictus.the asia tiger mosquito (aedes albopictus) is an important vector of arboviruses, and females can transmit pathogens such as the dengue, zika, and chikungunya viruses. understanding sex-related differences in this mosquito is fundamental for vector control. however, there are no reports of systematic characterization of long non-coding rnas (lncrnas) in male and female ae. albopictus. to investigate the roles of coding and non-coding rnas in both sexes of ae. albopictus, rna sequencing was perfo ...201931681418
two of the three transformer-2 genes are required for ovarian development in aedes albopictus.in drosophila melanogaster, transformer-2 (tra2) plays an essential role in the sex-specific splicing of doublesex (dsx) and fruitless (fru), two key transcription factor genes that program sexual differentiation and regulate sexual behavior. in the present study, the sequences and expression profiles of three tra2 (aalbtra2) genes in the asian tiger mosquito, aedes albopictus (ae. albopictus) were characterized. phylogenetic analysis revealed that these paralogs resulted from two duplication ev ...201930914323
variation in tolerance to parasites affects vectorial capacity of natural asian tiger mosquito populations.globally, diseases transmitted by arthropod vectors, such as mosquitoes, remain a major cause of morbidity and mortality [1]. the defense responses of mosquito and other arthropod vectors against parasites are important for understanding disease transmission dynamics and for the development of novel disease-control strategies. consequently, the mechanisms by which mosquitoes resist parasitic infection (e.g., immune-mediated killing) have long been studied [2, 3]. however, the ability of mosquito ...201931679930
development and calibration of a model for the potential establishment and impact of aedes albopictus in europe.the asian tiger mosquito (aedes albopictus) is one of the most invasive disease vectors worldwide. the species is a competent vector of dengue, chikungunya, zika viruses and other severe parasites and pathogens threatening human health. the capacity of this mosquito to colonize and establish in new areas (including temperate regions) is enhanced by its ability of producing diapausing eggs that survive relatively cold winters. the main drivers of population dynamics for this mosquito are water an ...201931678121
the uk's suitability for aedes albopictus in current and future climates.the asian tiger mosquito aedes albopictus is able to transmit various pathogens to humans and animals and it has already caused minor outbreaks of dengue and chikungunya in southern europe. alarmingly, it is spreading northwards and its eggs have been found in the uk in 2016 and 2017. climate-driven models can help to analyse whether this originally subtropical species could become established in northern europe. but so far, these models have not considered the impact of the diurnal temperature ...201930862279
a bacterium against the tiger: preliminary evidence of fertility reduction after release of aedes albopictus males with manipulated wolbachia infection in an italian urban area.novel tools are needed to reduce the nuisance and risk of exotic arbovirus transmission associated with the colonization of temperate regions by aedes albopictus. the incompatible insect technique (iit) is a population suppression approach based on cytoplasmic incompatibility between males with manipulated endosymbionts and wild females. here, we present the results of the first field experiment in europe to assess the capacity of an ae. albopictus line (arwp) deprived of its natural endosymbion ...201931603613
unravelling the invasion history of the asian tiger mosquito in europe.multiple introductions are key features for the establishment and persistence of introduced species. however, little is known about the contribution of genetic admixture to the invasive potential of populations. to address this issue, we studied the recent invasion of the asian tiger mosquito (aedes albopictus) in europe. combining genome-wide single nucleotide polymorphisms and historical knowledge using an approximate bayesian computation framework, we reconstruct the colonization routes and e ...201930849200
insights into an unexplored component of the mosquito repeatome: distribution and variability of viral sequences integrated into the genome of the arboviral vector aedes albopictus.the asian tiger mosquito aedes albopictus is an invasive mosquito and a competent vector for public-health relevant arboviruses such as chikungunya (alphavirus), dengue and zika (flavivirus) viruses. unexpectedly, the sequencing of the genome of this mosquito revealed an unusually high number of integrated sequences with similarities to non-retroviral rna viruses of the flavivirus and rhabdovirus genera. these non-retroviral integrated rna virus sequences (nirvs) are enriched in pirna clusters a ...201930809249
[local extinction of the asian tiger mosquito (aedes albopictus) following rat eradication on palmyra atoll by lafferty kd, mclaughlin jp, gruner ds, et al.] 201930793577
timing of lambda-cyhalothrin and pyriproxyfen barrier treatments for aedes albopictus (diptera: culicidae) management.barrier applications, treating vegetation and other potential mosquito resting areas with residual pesticides, have become standard practice for commercial pest management professionals offering mosquito control services. these treatments are generally effective in reducing numbers of the asian tiger mosquito, aedes albopictus (skuse). in the temperate climates, adult ae. albopictus populations are naturally eliminated each winter and must be grown from diapausing eggs the following spring. ther ...201930768177
a diverse microbial community supports larval development and survivorship of the asian tiger mosquito (diptera: culicidae).laboratory microcosm experiments were conducted to evaluate effects of bacteria isolated from senescent white oak leaves on the growth and survivorship of larval aedes albopictus (skuse). larvae hatched from surface-sterilized eggs were reared in microcosms containing individual bacterial isolates, combined isolates (porphyrobacter sp., enterobacter asburiae, acidiphilium rubrum, pseudomonas syringae, and azorhizobium caulinodans), a positive control containing a microbial community from an infu ...201930753569
first detection of aedes japonicus in spain: an unexpected finding triggered by citizen science.aedes japonicus is an invasive vector mosquito from southeast asia which has been spreading across central europe since the year 2000. unlike the asian tiger mosquito (aedes albopictus) present in spain since 2004, there has been no record of ae. japonicus in the country until now.201930674335
field trials to evaluate the effectiveness of the biogents®-sweetscent lure in combination with several commercial mosquito traps and to assess the effectiveness of the biogents-mosquitaire trap with and without carbon dioxide.a series of field experiments was conducted in florida, california, and louisiana in order to investigate whether adding the biogents® (bg)-sweetscent lure to several commercially available mosquito traps increases their aedes albopictus catch rates and to evaluate the bg-mosquitaire trap with and without co2. adding the bg-sweetscent to the skeetervac bite-guard sve6211, mosclean uv led (ultraviolet light-emitting diode), flowtron® galaxie pv 75, dynatrap® dt2000xl, bite shield protector, and b ...201931442187
complex interplay of evolutionary forces shaping population genomic structure of invasive aedes albopictus in southern europe.in the last four decades, the asian tiger mosquito, aedes albopictus, vector of several human arboviruses, has spread from its native range in south-east asia to all over the world, largely through the transportation of its eggs via the international trade in used tires. albania was the first country invaded in europe in 1979, followed by italy in 1990 and other mediterranean countries after 2000.201931437154
citronella oil-loaded electrospun micro/nanofibrous matrices as sustained repellency systems for the asian tiger mosquito aedes albopictus.mosquitoes are hematophagous insects of major public health concern, serving as vectors of many diseases. available products for personal protection against mosquitoes lack adequate efficacy and in most cases need to be reapplied or replaced frequently. in recent years, the encapsulation of the active repellents in various matrices has arisen as an alternative method for the development of new-generation repellent systems. the aim of the present study was to explore the potential of functional m ...201930632273
neighbors help neighbors control urban mosquitoes.the worldwide spread of invasive aedes mosquitoes and arboviral disease, have renewed the pressure for effective and sustainable urban mosquito control. we report on the success of a model we are confident will usher in a new era of urban mosquito control. the key innovation is the mobilization of neighbors guided by scientific advisors, an approach we termed citizen action through science (citizen acts). this approach was tested in a ne us town of approximately 1,000 residential yards infested ...201830361483
habitat geography around hawaii's oceanic islands influences tiger shark (galeocerdo cuvier) spatial behaviour and shark bite risk at ocean recreation sites.we compared tiger shark (galeocerdo cuvier) spatial behaviour among 4 hawaiian islands to evaluate whether local patterns of movement could explain higher numbers of shark bites seen around maui than other islands. our sample consisted of 96 electronically-tagged (satellite and acoustic transmitters) tiger sharks, individually tracked for up to 6 years. most individuals showed fidelity to a specific 'home' island, but also swam between islands and sometimes ranged far (up to 1,400 km) offshore. ...201829563552
antimicrobial activity of a serine proteinase inhibitor spipm5 from the black tiger shrimp penaeus monodon.a two-domain kazal-type serine proteinase inhibitor, spipm5, from penaeus monodon was studied. its transcript was expressed in all tissues tested including the hemocytes, stomach, gill, lymphoid organ, muscle, intestine and heart albeit less in hepatopancreas and eyestalk. the expression of spipm5 gene was also up-regulated by heat stress, white spot syndrome virus (wssv) infection and yellow head virus (yhv) infection. injection of recombinant rspipm5 protein into normal shrimp to mimic heat st ...201829601993
immunostimulation and yellow head virus (yhv) disease resistance induced by a lignin-based pulping by-product in black tiger shrimp (penaeus monodon linn.).yellow head virus (yhv) is classified as one of the most serious pathogens causing a harmful disease in many penaeids, especially black tiger shrimp (penaeus monodon), with high economic loss. to determine a potent and practical prophylactic strategy for controlling this disease, the toxicity of the by-product kraft lignin and its ability to control severe yhv infection were investigated in juvenile black tiger shrimp (15.9 ± 1.2 g body weight). the median lethal dosage at 96 h (96-hrs ld50) of ...201829162544
wssv-responsive gene expression under the influence of pmvrp15 suppression.the viral responsive protein 15 from black tiger shrimp penaeus monodon (pmvrp15), is highly up-regulated and produced in the hemocytes of shrimp with white spot syndrome virus (wssv) infection. to investigate the differential expression of genes from p. monodon hemocytes that are involved in wssv infection under the influence of pmvrp15 expression, suppression subtractive hybridization (ssh) of pmvrp15-silenced shrimp infected with wssv was performed. the 189 cdna clones of the forward library ...201829017938
diapause-associated changes in the lipid and metabolite profiles of the asian tiger mosquito, aedes albopictus.diapause is an alternative life-history strategy that allows organisms to enter developmental arrest in anticipation of unfavorable conditions. diapause is widespread among insects and plays a key role in enhancing overwinter survival as well as defining the seasonal and geographic distributions of populations. next-generation sequencing has greatly advanced our understanding of the transcriptional basis for this crucial adaptation but less is known about the regulation of embryonic diapause phy ...201830385483
alien species and human health: austrian stakeholder perspective on challenges and solutions.no saturation in the introduction, acceleration of spread and the increasing impacts of alien species are a characteristic feature of the anthropocene. concomitantly, alien species affecting human health are supposed to increase, mainly due to increasing global trade and climate change. in this study, we assess challenges and solutions posed by such species to the public health sector in austria over the next few decades. we did so using an online questionnaire circulated to 131 experts and stak ...201830424500
toll-receptor 9 gene in the black tiger shrimp (penaeus monodon) induced the activation of the tlr-nf-κb signaling pathway.toll receptors are important pathogen recognition receptors (prrs) in shrimps, which play a vital role in defending against virus and bacterial challenge. in this paper, the characterization and functional analysis of a toll9 receptor gene from penaeus monodon was performed in hek293t cells. data showed that pmtoll9 can activate the nf-κb promoter activities of tlr pathway, while isre and ifn-β promoter cannot be activated obviously in hek293t cells using dual-luciferase reporter system. the dow ...201828982619
characterizing environmental suitability of aedes albopictus (diptera: culicidae) in mexico based on regional and global niche models.the asian tiger mosquito, aedes albopictus (skuse) (diptera: culicidae), is an invasive species and a vector of numerous human pathogens, including chikungunya, dengue, yellow fever, and zika viruses. this mosquito had been reported from 36 geographic locations in mexico by 2005, increasing to 101 locations by 2010 and 501 locations (spanning 16 states) by 2016. here we modeled the occupied niche for ae. albopictus in mexico to characterize the environmental conditions related to its presence, a ...201829186544
vector-borne diseases and climate change: a european perspective.climate change has already impacted the transmission of a wide range of vector-borne diseases in europe, and it will continue to do so in the coming decades. climate change has been implicated in the observed shift of ticks to elevated altitudes and latitudes, notably including the ixodes ricinus tick species that is a vector for lyme borreliosis and tick-borne encephalitis. climate change is also thought to have been a factor in the expansion of other important disease vectors in europe: aedes ...201829149298
combining abundance and performance data reveals how temperature regulates coastal occurrences and activity of a roaming apex predator.the redistribution of species has emerged as one of the most pervasive impacts of anthropogenic climate warming, and presents many societal challenges. understanding how temperature regulates species distributions is particularly important for mobile marine fauna such as sharks given their seemingly rapid responses to warming, and the socio-political implications of human encounters with some dangerous species. the predictability of species distributions can potentially be improved by accounting ...201829516588
lack of multiple paternity in the oceanodromous tiger shark (galeocerdo cuvier).multiple paternity has been documented as a reproductive strategy in both viviparous and ovoviviparous elasmobranchs, leading to the assumption that multiple mating may be ubiquitous in these fishes. however, with the majority of studies conducted on coastal and nearshore elasmobranchs that often form mating aggregations, parallel studies on pelagic, semi-solitary species are lacking. the tiger shark (galeocerdo cuvier) is a large pelagic shark that has an aplacental viviparous reproductive mode ...201829410842
a comparative modeling study on non-climatic and climatic risk assessment on asian tiger mosquito (aedes albopictus).aedes albopictus, the asian tiger mosquito, vector of chikungunya, dengue fever and zika viruses, has proven its hardy adaptability in expansion from its natural asian, forest edge, tree hole habitat on the back of international trade transportation, re-establishing in temperate urban surrounds, in a range of water receptacles and semi-enclosures of organic matter. conventional aerial spray mosquito vector controls focus on wetland and stagnant water expanses, proven to miss the protected hollow ...201829576954
inhibition of protein glycation by tiger milk mushroom [lignosus rhinocerus(cooke) ryvarden] and search for potential anti-diabetic activity-related metabolic pathways by genomic and transcriptomic data mining.naturally occurring anti-glycation compounds have drawn much interest in recent years as they show potential in reducing or preventing the risk of chronic complications for diabetic patients. in this study, annotation of the genome-transcriptome data from tiger milk mushroom (lignosus rhinocerus, syn.lignosus rhinocerotis) to plantcyc enzymes database identified transcripts that are related to anti-diabetic properties, and these include genes that are involved in carotenoid and abscisic acid bio ...201829491836
characterization and expression analysis of a chitinase gene (pmchi-5) from black tiger shrimp (penaeus monodon) under pathogens infection and ambient ammonia-n stress.chitinases are crucial enzymes for crustaceans. previous researches had already revealed that chitinases play important roles in digestion, molting and defense against viruses. in the present study, a chitinase cdna was identified from black tiger shrimp (penaeus monodon) and designated as pmchi-5. the full-length pmchi-5 cdna was 2860 bp in size, containing an open reading frame (orf) of 1731 bp that encoded a protein of 576 amino acids with a deduced molecular weight of 64.8 kda. expression of ...201829100985
transcriptome analysis provides insights into the immune responsive pathways and genes in the head kidney of tiger grouper (epinephelus fuscoguttatus) fed with spatholobus suberectus, phellodendron amurense, or eclipta prostrata.the tiger grouper, epinephelus fuscoguttatus, is an economically important fish in southeast asia but has been plagued by several diseases. spatholobus suberectus (s), phellodendron amurense (p), and eclipta prostrate (e) are three commonly used chinese medicinal herbs. although previous pharmacological and clinical studies indicated that s, p, and e possess a variety of beneficial functions in mammals, little is known about their functions in farmed fish and the underlying molecular mechanism o ...201829222026
modulation of cortisol responses to an acute stressor in zebrafish visually exposed to heterospecific fish during development.studies regarding predator-prey relationships have often focused on prey assessment and the responses to predation risk, but few have verified the relationship in the presence or absence of visual contact with a predator (e.g., tiger oscar, astronotus ocellatus) or a nonpredator (e.g., goldfish, carassius auratus) during the developmental phase, which could alter several physiological and neuroendocrine mechanisms in adulthood. herein, we determined responses to physical (chasing with a net) and ...201829369748
genome of the tasmanian tiger provides insights into the evolution and demography of an extinct marsupial carnivore.the tasmanian tiger or thylacine (thylacinus cynocephalus) was the largest carnivorous australian marsupial to survive into the modern era. despite last sharing a common ancestor with the eutherian canids ~160 million years ago, their phenotypic resemblance is considered the most striking example of convergent evolution in mammals. the last known thylacine died in captivity in 1936 and many aspects of the evolutionary history of this unique marsupial apex predator remain unknown. here we have se ...201829230027
first report of aedes (stegomyia) albopictus (skuse) (diptera: culicidae), the asian tiger mosquito, in ecuador.aedes (stegomyia) albopictus (skuse), (diptera: culicidae), the asian tiger mosquito, is one of the most widespread invasive vector-borne disease insect in tropical and temperate zones. this species has invaded the americas over the past 3 decades and has spread to six countries. we report ae. albopictus in guayaquil city, the first time it has been identified in ecuador. outdoor bg-sentinel traps without lures collected a total of 21 ae. albopictus.201829029173
a scoping review of published literature on chikungunya virus.chikungunya virus (chikv) has caused several major epidemics globally over the last two decades and is quickly expanding into new areas. although this mosquito-borne disease is self-limiting and is not associated with high mortality, it can lead to severe, chronic and disabling arthritis, thereby posing a heavy burden to healthcare systems. the two main vectors for chikv are aedes aegypti and aedes albopictus (asian tiger mosquito); however, many other mosquito species have been described as com ...201830496207
plant-derived compounds regulate formation of the insect juvenile hormone receptor complex.insect growth regulators (igrs) are attractive pest control agents due to their high target specificity and relative safety to the environment. recently, plants have been shown to synthesize igrs that affect the insect juvenile hormone (jh) as a part of their defense mechanisms. using a yeast two-hybrid system transformed with the aedes aegypti jh receptor as a reporter system, we identified several jh agonists (jhas) and antagonists (jhans) causing retardation in the ovarian development of fema ...201830195384
rapid evolution and the genomic consequences of selection against interspecific mating.while few species introduced into a new environment become invasive, those that do provide critical information on ecological mechanisms that determine invasions success and the evolutionary responses that follow invasion. aedes albopictus (the asian tiger mosquito) was introduced into the naturalized range of aedes aegypti (the yellow fever mosquito) in the united states in the mid-1980s, resulting in the displacement of a. aegypti in much of the south-eastern united states. the rapid displacem ...201830069966
sargassum wightii-synthesized zno nanoparticles - from antibacterial and insecticidal activity to immunostimulatory effects on the green tiger shrimp penaeus semisulcatus.the green synthesis of metal nanoparticles using phytochemical from marine seaweeds is a fast-growing research field in nanotechnology. here, the biosynthesis of zinc oxide nanoparticles was achieved using the hot water extract of sargassum wightii. the hot water extract prepared from s. wightii (h sw) and zno nps were studied by uv-visible and ftir spectroscopy, sem and xrd. then, both products were evaluated for antibiofilm activity towards aquatic pathogens. the nanoparticles' immunostimulati ...201829754050
dispersion and oviposition of aedes albopictus in a brazilian slum: initial evidence of asian tiger mosquito domiciliation in urban environments.aedes albopictus, originally considered as a secondary vector for arbovirus transmission, especially in areas where this species co-exist with aedes aegypti, has been described in most regions of the world. dispersion and domiciliation of ae. albopictus in a complex of densely urbanized slums in rio de janeiro, southeastern brazil, was evidenced. in this study, we tested the hypotheses that 1) ae. albopictus distribution in urban slums is negatively related to distance from vegetation, and 2) th ...201829684029
effectiveness of a field trap barrier system for controlling aedes albopictus: a "removal trapping" strategy.aedes aegypti and aedes albopictus are the main vectors for the transmission of several viral pathogens, in particular, dengue, zika and chikungunya. in the absence of vaccines and treatment, control of aedes mosquitoes is the only means of keeping these diseases in check. aedes control is difficult, and it is, therefore, necessary to evaluate the efficacy of novel control methods, particularly those targeting adult and exophilic ae. albopictus populations.201829463300
a cytosolic sensor, pmddx41, mediates antiviral immune response in black tiger shrimp penaeus monodon.dead (asp-glu-ala-asp)-box polypeptide 41 (ddx41), a receptor belonging to the dexd family, has recently been identified as an intracellular dna sensor in vertebrates. here, we report on the identification and functional characterization of pmddx41, the first cytosolic dna sensor in shrimp. by searching a penaeus monodon expressed sequence tag (est) database (http://pmonodon.biotec.or.th), three cdna fragments exhibiting similarity to ddx41 in various species were identified and assembled, resul ...201829248385
aedes albopictus (skuse, 1895) (diptera: culicidae) in greece: 13 years of living with the asian tiger mosquito.aedes (stegomyia) albopictus (skuse, 1895) (diptera: culicidae), commonly known as the asian tiger mosquito, is an invasive mosquito species of public health significance, well established in many countries worldwide. in greece, it was first recorded in corfu and thesprotia between 2003 and 2004. in the following years, further distribution and establishment of ae. albopictus in greece have been confirmed in many regional units of the country. in the current study, we report the invasion history ...201829275504
correction: dengue virus serotype 2 infection alters midgut and carcass gene expression in the asian tiger mosquito, aedes albopictus.[this corrects the article doi: 10.1371/journal.pone.0171345.].201829370309
effects of acute temperature and salinity changes, body length and starvation on the critical swimming speed of juvenile tiger puffer, takifugu rubripes.the critical swimming speed (u crit, cm s-1) of juvenile tiger puffer takifugu rubripes was determined under different temperatures (15, 21, 25 and 30 °c), salinities (5, 10, 20, 32 and 40), body lengths (3.32, 4.08, 5.06 and 5.74 cm) and starvation days (1, 3, 6 and 9 days). acute temperature change, body length and starvation significantly influenced the u crit of tiger puffers, whereas acute salinity change had no significant effect. the u crit increased as the temperature increased from 15 t ...201829082461
improved egfr mutation detection using combined exosomal rna and circulating tumor dna in nsclc patient plasma.a major limitation of circulating tumor dna (ctdna) for somatic mutation detection has been the low level of ctdna found in a subset of cancer patients. we investigated whether using a combined isolation of exosomal rna (exorna) and cell-free dna (cfdna) could improve blood-based liquid biopsy for egfr mutation detection in non-small-cell lung cancer (nsclc) patients.201829216356
microbiological stabilization of tiger nuts' milk beverage using ultra-high pressure homogenization. a preliminary study on microbial shelf-life extension.tiger nuts' milk beverages are highly perishable products. for this reason, the interest of food industry for their commercialization makes necessary the application of preservation treatments to prolong their shelf-life. in the current study, the effect of ultra-high pressure homogenization (uhph) on the microbiological and sensory qualities of tiger nuts' milk beverage was evaluated. characteristics of uhph-treated products (at 200 and 300 mpa, with inlet temperature of 40 °c) were compared wi ...201828941895
should we judge a tiger by its stripes? 201828940896
the tiger is extinct! (almost). 201828929606
legal aspects of counteracting the trafficking of falsified medicines in the european union.the paper identifies key risks associated with the illegal production and sale of medicines. also there were generalized features of criminal responsibility for acts related to the trafficking of drugs in some member states of the eu and analyzed legal means of combating the falsified drugs today. the problem concerning falsification of medicines is particularly acute not only in developing countries but also in developed ones. fake is one in ten - twenty drug. the largest share of falsified dru ...201829064815
randomised comparison of judkins vs. tiger catheter in coronary angiography via the right radial artery: the judge study.the aim of this study was to compare the performance of the tiger-ii with judkins 3.5l/4r catheters in coronary angiography (cag) via the transradial approach (tra).201829061547
tissgdb: tissue-specific gene database in cancer.tissue-specific gene expression is critical in understanding biological processes, physiological conditions, and disease. the identification and appropriate use of tissue-specific genes (tissgenes) will provide important insights into disease mechanisms and organ-specific therapeutic targets. to better understand the tissue-specific features for each cancer type and to advance the discovery of clinically relevant genes or mutations, we built tissgdb (tissue specific gene database in cancer) avai ...201829036590
polarized transilluminating dermoscopy: bedside trichoscopic diagnosis of trichothiodystrophy.trichothiodystrophy is a rare autosomal recessive disorder resulting in a broad range of systemic abnormalities. polarizing microscopy of the hair reveals the pathognomic "tiger tail" of alternating light and dark bands, but the need for a microscope prevents rapid bedside diagnosis. we describe a new technique for the bedside diagnosis of trichothiodystrophy using a handheld polarizing dermatoscope, precluding the need for microscopic examination.201828944975
untargeted metabolomics reveals links between tiger nut (cyperus esculentus l.) and its geographical origin by metabolome changes associated with membrane lipids.tiger nuts and tiger nut milk are well-known valencian products, and step-by-step these tubers and the tuber-based beverage are becoming more and more relevant products in international markets. however, the increasing demand and success of valencian tiger nuts did not allow protected designation of origin (pdo) tuber to supply the domestic and international markets. therefore, the verification of the geographical origin is highly required. in this research, the main objective was to combine an ...201829098962
high concentrations of perfluorooctane sulfonate in mucus of tiger puffer fish takifugu rubripes: a laboratory exposure study.distribution of perfluorooctane sulfonate (pfos) was investigated in tissues (plasma, blood clot, mucus, skin, liver, muscle, and gonad) of tiger puffer fish takifugu rubripes. a single dose of pfos was intraperitoneally injected at 0.1 mg/kg body weight with samples taken over a 14-day period. the highest concentration of pfos was found in the plasma, 861 ng/ml at 14 days, followed by the mucus, liver, blood clot, gonads, muscles, and skin of fish. a gradual upward trend in pfos concentration w ...201829098580
clinical effect of a mutation (p.glu322asp, c.966 g>t) in pank2 gene in a family with atypical pantothenate kinase-associated neurodegeneration.pantothenate-kinase-associated neurodegeneration (pkan) is a rare autosomal recessive disorder caused by mutations in the pantothenate kinase 2 (pank2) gene. many different mutations in the pank2 gene have been detected in association with pkan. a 20 year old female patient who had been suffering from progressive gait disorder for 1 year was found to have the 'eye-of-the-tiger sign' from the brain magnetic resonance imaging (mri). the same brain imaging findings were shown in the father and brot ...201830226968
practical application of laparoscopic oviductal artificial insemination for the propagation of domestic cats and wild felids.ai was first reported in cats almost 50 years ago but, unlike ai in other domesticated animals (e.g. dogs, cattle, horses), has not been widely used for routine propagation by veterinarians or breeders. anatomical and physiological challenges with cats have hindered the efficiency of ai using standardised transcervical approaches applied to other species. development of laparoscopic oviductal ai (lo-ai) has helped overcome some of these barriers and, during the past 7 years, produced high pregna ...201832188540
identifying important conservation areas for the clouded leopard neofelis nebulosa in a mountainous landscape: inference from spatial modeling techniques.the survival of large carnivores is increasingly precarious due to extensive human development that causes the habitat loss and fragmentation. habitat selection is influenced by anthropogenic as well as environmental factors, and understanding these relationships is important for conservation management. we assessed the environmental and anthropogenic variables that influence site use of clouded leopard neofelis nebulosa in bhutan, estimated their population density, and used the results to pred ...201829721297
seasonal food habits and prey selection of amur tigers and amur leopards in northeast china.we analyzed the scats of amur tigers and amur leopards, and examined their annual and seasonal food habits in northeast china to comprehend their coexistence. wild boar had the highest annual and seasonal consumption frequencies by the tigers, while both roe deer and sika deer were mostly preyed by the leopards annually. the three species appeared to be the key preys in terms of high proportion of consumed biomass by the two felids. our data also revealed numerous mid-sized carnivores and small ...201829720702
identifying priority conservation landscapes and actions for the critically endangered javan leopard in indonesia: conserving the last large carnivore in java island.with the extirpation of tigers from the indonesian island of java in the 1980s, the endemic and critically endangered javan leopard is the island's last remaining large carnivore. yet despite this, it has received little conservation attention and its population status and distribution remains poorly known. using maxent modeling, we predicted the locations of suitable leopard landscapes throughout the island of java based on 228 verified javan leopard samples and as a function of seven environme ...201829949588
the invasive asian tiger mosquito aedes albopictus (diptera: culicidae) in the czech republic: repetitive introduction events highlight the need for extended entomological surveillance.in the framework of a regional collaborative project between authorities and scientists, evidence was found of repeated introduction of aedes (stegomyia) albopictus (skuse) alongside the main road entrances (e461 and e65) connecting austria and the slovak republic with the czech republic. in comparison to data from 2012 (17 specimens collected on three occasions), the seasons 2016 (66 specimens on ten occasions) and 2017 (90 specimens on eight occasions) show an apparent increase of introduction ...201829856987
pirna profiling of dengue virus type 2-infected asian tiger mosquito and midgut tissues.the asian tiger mosquito, aedes albopictus, is a competent vector for the majority of arboviruses. the mosquito innate immune response is a primary determinant for arthropod-borne virus transmission, and the midgut is the first barrier to pathogen transmission. mosquito antiviral immunity is primarily mediated by the small interfering rna pathway. however, the roles that the p-element induced wimpy testis (piwi)-interacting rna (pirna) pathway play in antiviral immunity in ae. albopictus and its ...201829690553
detection of the invasive mosquito species aedes (stegomyia) albopictus (diptera: culicidae) in portugal.the asian tiger mosquito aedes albopictus is an invasive mosquito originating from the asia-pacific region. this species is of major concern to public and veterinary health because of its vector role in the transmission of several pathogens, such as chikungunya, dengue, and zika viruses. in portugal, a national vector surveillance network (rede de vigilância de vectores—revive) is responsible for the surveillance of autochthonous, but also invasive, mosquito species at points of entr ...201829690531
the asian tiger mosquito, aedes (stegomyia) albopictus (skuse), a vector of dengue, chikungunya and zika viruses, reaches portugal (diptera: culicidae).the asian tiger mosquito, aedes (stegomyia) albopictus (skuse), is a tropical species originally from south-eastern asia (hawley, 1988). it has experienced a rampant human-mediated range expansion since the 1970s to now occupy almost the whole of the tropical and subtropical areas of the world. as an eclectic haematophagous species, it attacks humans and is able to use a number of man-made and natural structures where stagnant water is present (estrada-franco craig, 1995). eggs are able to survi ...201829690129
land use and larval habitat increase aedes albopictus (diptera: culicidae) and culex quinquefasciatus (diptera: culicidae) abundance in lowland hawaii.vector abundance plays a key role in transmission of mosquito-borne disease. in hawaii, aedes albopictus (skuse) (diptera: culicidae), the asian tiger mosquito, has been implicated in locally-transmitted dengue outbreaks, while culex quinquefasciatus say (diptera: culicidae), the southern house mosquito, is the primary vector of avian malaria, a wildlife disease that has contributed to declines and extinctions of native hawaiian birds. despite the importance of these introduced species to human ...201830085189
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