keyword
MENU ▼
Read by QxMD icon Read
search

Container mosquito

keyword
https://www.readbyqxmd.com/read/28087198/cloning-characterization-and-transmission-blocking-potential-of-midgut-carboxypeptidase-a-in-anopheles-stephensi
#1
V VenkatRao, Surendra K Kumar, P Sridevi, Vijaykumar Muley, R K Chaitanya
Transmission-blocking vaccines (TBV) interrupt malaria parasite transmission and hence form an important component for malaria eradication. Mosquito midgut exopeptidases such as aminopeptidase N & carboxypeptidase B have demonstrated TBV potential. In the present study, we cloned and characterized carboxypeptidase A (CPA) from the midgut of an important malarial vector, Anopheles stephensi. ClustalW amino acid alignment and in silico 3-dimensional structure analysis of CPA predicted the presence of active sites involved in zinc and substrate binding that are conserved among all the known mosquito species...
January 10, 2017: Acta Tropica
https://www.readbyqxmd.com/read/28081440/a-knockout-screen-of-apiap2-genes-reveals-networks-of-interacting-transcriptional-regulators-controlling-the-plasmodium-life-cycle
#2
Katarzyna Modrzynska, Claudia Pfander, Lia Chappell, Lu Yu, Catherine Suarez, Kirsten Dundas, Ana Rita Gomes, David Goulding, Julian C Rayner, Jyoti Choudhary, Oliver Billker
A family of apicomplexa-specific proteins containing AP2 DNA-binding domains (ApiAP2s) was identified in malaria parasites. This family includes sequence-specific transcription factors that are key regulators of development. However, functions for the majority of ApiAP2 genes remain unknown. Here, a systematic knockout screen in Plasmodium berghei identified ten ApiAP2 genes that were essential for mosquito transmission: four were critical for the formation of infectious ookinetes, and three were required for sporogony...
January 11, 2017: Cell Host & Microbe
https://www.readbyqxmd.com/read/28075354/the-state-of-the-art-of-lethal-oviposition-trap-based-mass-interventions-for-arboviral-control
#3
Brian J Johnson, Scott A Ritchie, Dina M Fonseca
The intensifying expansion of arboviruses highlights the need for effective invasive Aedes control. While mass-trapping interventions have long been discredited as inefficient compared to insecticide applications, increasing levels of insecticide resistance, and the development of simple affordable traps that target and kill gravid female mosquitoes, show great promise. We summarize the methodologies and outcomes of recent lethal oviposition trap-based mass interventions for suppression of urban Aedes and their associated diseases...
January 8, 2017: Insects
https://www.readbyqxmd.com/read/28074632/gene-expression-profiles-of-the-southern-house-mosquito-culex-quinquefasciatus-during-exposure-to-permethrin
#4
William R Reid, Lee Zhang, Youhui Gong, Ting Li, Nannan Liu
Insecticide resistance is a major obstacle to the management of disease-vectoring mosquitoes worldwide. The genetic changes and detoxification genes involved in insecticide resistance have been extensively studied in populations of insecticide-resistant, however few studies have focused on the resistance genes up-regulated upon insecticide exposure and the possible regulation pathways involved in insecticide resistance. To characterize the changes in gene expression during insecticide exposure, and to investigate the possible connection of known regulation pathways with insecticide resistance, we conducted RNA-Seq analysis of a highly-permethrin resistant strain of Culex quinquefasciatus following permethrin exposure...
January 10, 2017: Insect Science
https://www.readbyqxmd.com/read/28072517/arthropod-innate-immune-systems-and-vector-borne-diseases
#5
Richard H G Baxter, Alicia Contet, Kathryn Krueger
Arthropods, especially ticks and mosquitoes, are the vectors for a number of parasitic and viral human diseases including malaria, sleeping sickness, Dengue and Zika. Yet arthropods show tremendous individual variation in their capacity to transmit disease. A key factor in this capacity is genetically encoded immune factors that counteract infection by the pathogen. Arthropod-specific pattern recognition receptors and protease cascades detect and respond to infection. Proteins such as antimicrobial peptides, thioester-containing proteins, and transglutaminases effect responses such as lysis, phagocytosis, melanization and agglutination...
January 10, 2017: Biochemistry
https://www.readbyqxmd.com/read/28057066/evaluations-of-dual-attractant-toxic-sugar-baits-for-surveillance-and-control-of-aedes-aegypti-and-aedes-albopictus-in-florida
#6
Jodi M Scott-Fiorenzano, Alice P Fulcher, Kelly E Seeger, Sandra A Allan, Daniel L Kline, Philip G Koehler, Günter C Müller, Rui-De Xue
BACKGROUND: Dual attractant toxic sugar baits (D-ATSB) containing two host kairomones, L-lactic (LA) and 1-octen-3-ol (O), and fruit-based attractants were evaluated through olfactory, consumption and mortality, and semi-field experiments to determine if host kairomones could first, enhance attraction of a fruit-based (attractant) toxic sugar bait (ATSB), and second, increase the efficacy of a fruit based attractive toxic sugar bait (ATSB). METHODS: Four combinations of LA and O were incorporated into the ATSB and evaluated in an olfactometer to determine if these combinations could enhance attraction of Aedes aegypti (L...
January 5, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/28054419/identification-and-initial-characterization-of-matrix-metalloproteinases-in-the-yellow-fever-mosquito-aedes-aegypti
#7
A M Kantor, S Dong, N L Held, E Ishimwe, A L Passarelli, R J Clem, A W E Franz
Aedes aegypti is a major vector for arboviruses such as dengue, chikungunya and Zika viruses. During acquisition of a viremic bloodmeal, an arbovirus infects mosquito midgut cells before disseminating to secondary tissues, including the salivary glands. Once virus is released into the salivary ducts it can be transmitted to another vertebrate host. The midgut is surrounded by a basal lamina (BL) in the extracellular matrix, consisting of a proteinaceous mesh composed of collagen IV and laminin. BL pore size exclusion limit prevents virions from passing through...
February 2017: Insect Molecular Biology
https://www.readbyqxmd.com/read/28043010/integrin-%C3%AE-v%C3%AE-3-promotes-infection-by-japanese-encephalitis-virus
#8
Wenchun Fan, Ping Qian, Dandan Wang, Xianwei Zhi, Yanming Wei, Huanchun Chen, Xiangmin Li
Japanese encephalitis virus (JEV) is a mosquito-borne flavivirus that is one of the major causes of viral encephalitis diseases worldwide. The JEV envelope protein facilitates viral entry, and its domain III contains an Arg-Gly-Asp (RGD) motif, that may modulate JEV entry through the RGD-binding integrin. In this study, the roles of integrin αv and β3 on the infection of JEV were evaluated. Reduced expression of integrin αv/β3 by special shRNA confers 2 to 4-fold inhibition of JEV replication in BHK-21 cells...
December 28, 2016: Research in Veterinary Science
https://www.readbyqxmd.com/read/28035106/zika-virus-infection-past-and-present-of-another-emerging-vector-borne-disease
#9
REVIEW
Hercules Sakkas, Vangelis Economou, Chrissanthy Papadopoulou
Zika virus infection is an emerging mosquito-borne disease, first identified in Uganda in 1947. It is caused by the Zika arbovirus, and transmitted by the bites of infected mosquitoes of the genus Aedes. For almost half a century, the Zika virus was reported as the causative agent of sporadic human infections. In 2007, the Zika virus emerged outside Asia and Africa causing an epidemic on the Island of Yap in Micronesia. The manifestation of the newly acquired human infection varies from asymptomatic to self-limiting acute febrile illness with symptoms and clinical features similar to those caused by the Dengue virus ('Dengue-like syndrome')...
October 2016: Journal of Vector Borne Diseases
https://www.readbyqxmd.com/read/28033379/targeting-a-hidden-enemy-pyriproxyfen-autodissemination-strategy-for-the-control-of-the-container-mosquito-aedes-albopictus-in-cryptic-habitats
#10
Kshitij Chandel, Devi Shankar Suman, Yi Wang, Isik Unlu, Eric Williges, Gregory M Williams, Randy Gaugler
BACKGROUND: The Asian tiger mosquito, Aedes albopictus, is a vector of dengue, Chikungunya, and Zika viruses. This mosquito inhabits a wide range of artificial water-holding containers in urban and suburban areas making it difficult to control. We tested the hypothesis that female-driven autodissemination of an insect growth regulator could penetrate cryptic oviposition habitats difficult to treat with conventional insecticidal sprays. METHODOLOGY: Oviposition preferences of Ae...
December 2016: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/28027928/dengue-virus-non-structural-protein-1-expression-and-associated-risk-factors-among-febrile-patients-attending-university-of-abuja-teaching-hospital-nigeria
#11
Idris Abdullahi Nasir, Olubunmi Olajide Agbede, Amos Dangana, Marycelin Baba, Abubakar Shehu Haruna
BACKGROUND: Dengue is a mosquito-borne and neglected tropical viral disease that has been reported to be hyper-endemic in Nigeria. However, this is the first dengue study in Abuja. OBJECTIVE: This hospital-based cross-sectional study investigated the prevalence of Dengue virus (DENV) non-structural protein-1 (NS1) antigenaemia, anti-Dengue virus IgG and their associated risk factors among febrile patients attending the University of Abuja Teaching Hospital (UATH), Nigeria...
December 24, 2016: Virus Research
https://www.readbyqxmd.com/read/28024869/expression-of-heat-shock-proteins-hsps-in-aedes-aegypti-l-and-aedes-albopictus-skuse-diptera-culicidae-larvae-in-response-to-thermal-stress
#12
Arun Sivan, Ananganallur Nagarajan Shriram, Nagarajan Muruganandam, Ramanathan Thamizhmani
Climatic changes are responsible, to a certain extent for the occurrence and spread of arboviral pathogens world over. Temperature is one of the important abiotic factors influencing the physiological processes of mosquitoes. Several genes of heat shock protein (HSP) families are known to be expressed in mosquitoes, which aid in overcoming stress induced by elevated temperature. In order to understand expression of HSP family genes in the Andaman population of Aedes aegypti and Aedes albopictus, we used quantitative real-time polymerase chain reaction (qPCR) to examine expression levels of HSPs in response to thermal stress under laboratory and in actual field conditions...
December 24, 2016: Acta Tropica
https://www.readbyqxmd.com/read/28011737/influence-of-the-length-of-storage-on-aedes-aegypti-diptera-culicidae-egg-viability
#13
Heidi E Brown, Caitlin Smith, Stephanie Lashway
Aedes aegypti (L.) is one of the most important arboviral vectors worldwide. Vector control is targeted at immature and adult stages; however, eggs are resistant to desiccation and may repopulate treated areas long after treatment ceases. We investigated the effect of age on Ae. aegypti egg hatching rates using newly colonized populations (F2) from an arid region. We found a strongly negative association where older eggs had lower hatch rates. The capacity of eggs to survive for long periods of time has implications on mosquito control...
December 22, 2016: Journal of Medical Entomology
https://www.readbyqxmd.com/read/28001214/a-biodegradable-device-for-the-controlled-release-of-piper-nigrum-piperaceae-standardized-extract-to-control-aedes-aegypti-diptera-culicidae-larvae
#14
Kauê Muller Custódio, Joice Guilherme de Oliveira, Diego Moterle, Karine Modolon Zepon, Josiane Somariva Prophiro, Luiz Alberto Kanis
INTRODUCTION: The significant increase in dengue, Zika, and chikungunya and the resistance of the Aedes aegypti mosquito to major insecticides emphasize the importance of studying alternatives to control this vector. The aim of this study was to develop a controlled-release device containing Piper nigrum extract and to study its larvicidal activity against Aedes aegypti. METHODS: Piper nigrum extract was produced by maceration, standardized in piperine, and incorporated into cotton threads, which were inserted into hydrogel cylinders manufactured by the extrusion of carrageenan and carob...
November 2016: Revista da Sociedade Brasileira de Medicina Tropical
https://www.readbyqxmd.com/read/27999305/mosquito-diptera-culicidae-habitat-surveillance-by-android-mobile-devices-in-guangzhou-china
#15
Tai-Ping Wu, Jun-Hua Tian, Rui-De Xue, Yi-Liang Fang, Ai-Hua Zheng
In 2014, Guangzhou City, South China, suffered from its worst outbreak of dengue fever in decades. Larval mosquito habitat surveillance was carried out by using android mobile devices in four study sites in May 2015. The habitats with larval mosquitoes were recorded as photo waypoints in OruxMaps or in videos. The total number of potential mosquito habitats was 342, of which 166 (49%) were found to have mosquito larvae or pupae. Small containers were the most abundant potential habitats, accounting for 26% of the total number...
December 17, 2016: Insects
https://www.readbyqxmd.com/read/27997935/exotic-mosquito-threats-require-strategic-surveillance-and-response-planning
#16
Cameron E Webb, Stephen L Doggett
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 Mosquito Monitoring Program provides an early warning system for potential outbreaks of mosquito-borne disease by tracking annual activity of these mosquitoes and their associated pathogens...
December 14, 2016: Public Health Research & Practice
https://www.readbyqxmd.com/read/27995998/a-novel-fikk-kinase-regulates-the-development-of-mosquito-and-liver-stages-of-the-malaria
#17
Dabbu Kumar Jaijyan, Praveen Kumar Verma, Agam Prasad Singh
Protein phosphorylation is the most important post-translational event in the regulation of various essential signaling pathways in a cell. Here, we show the functional characterization of a FIKK family protein kinase of the rodent malaria parasite (PbMLFK), which is expressed only in mosquito and liver stages and contains two functional C-terminal PEXEL motifs. We demonstrate that this protein plays a role in mosquito and liver stages of parasite growth. The oocysts of PbMLFK-deficient parasites produced 4-fold fewer sporozoites...
December 20, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27991917/a-chikungunya-fever-vaccine-utilizing-an-insect-specific-virus-platform
#18
Jesse H Erasmus, Albert J Auguste, Jason T Kaelber, Huanle Luo, Shannan L Rossi, Karla Fenton, Grace Leal, Dal Y Kim, Wah Chiu, Tian Wang, Ilya Frolov, Farooq Nasar, Scott C Weaver
Traditionally, vaccine development involves tradeoffs between immunogenicity and safety. Live-attenuated vaccines typically offer rapid and durable immunity but have reduced safety when compared to inactivated vaccines. In contrast, the inability of inactivated vaccines to replicate enhances safety at the expense of immunogenicity, often necessitating multiple doses and boosters. To overcome these tradeoffs, we developed the insect-specific alphavirus, Eilat virus (EILV), as a vaccine platform. To address the chikungunya fever (CHIKF) pandemic, we used an EILV cDNA clone to design a chimeric virus containing the chikungunya virus (CHIKV) structural proteins...
December 19, 2016: Nature Medicine
https://www.readbyqxmd.com/read/27974556/rplp1-and-rplp2-are-essential-flavivirus-host-factors-that-promote-early-viral-protein-accumulation
#19
Rafael K Campos, Benjamin Wong, Xuping Xie, Yi-Fan Lu, Pei-Yong Shi, Julien Pompon, Mariano A Garcia-Blanco, Shelton S Bradrick
: The Flavivirus genus contains several arthropod-borne viruses that pose global health threats, including dengue viruses (DENV), yellow fever virus (YFV) and Zika virus (ZIKV). In order to understand how these viruses replicate in human cells, we previously conducted genome-scale RNAi screens to identify candidate host factors. In these screens we identified ribosomal proteins RPLP1 and RPLP2 (RPLP1/2) to be among the most crucial putative host factors required for DENV and YFV infection...
December 14, 2016: Journal of Virology
https://www.readbyqxmd.com/read/27965749/oviposition-habitat-selection-of-dengue-vectors-aedes-aegypti-and-aedes-albopictus-in-response-to-fish-predator
#20
Wan Fatma Zuharah, Nik Fadzly, Wilson Ong Kang Wei, Zarul Hazrin Hashim
To understand the effects of fish predator's kairomones on Aedes mosquitoes' oviposition, we established an experiment using gravid Aedes females. Kairomones concentrations were established using Hampala macrolepidota. One individual fish was placed inside containers with varying water levels (1 L, 5 L, and 10 L of water). The fish were kept in the containers for 24 hours and were removed immediately at the start of each trial in order to have the kairomones remnants. Twenty gravid adult females of Aedes aegypti and Aedes albopictus were allowed to lay eggs on oviposition site with various treatments: (1) control without any kairomones; (2) kairomone remnant in 1 L of water; (3) kairomone remnant in 5 L of water; and (4) kairomone remnant in 10 L of water...
November 2016: Tropical Life Sciences Research
keyword
keyword
29903
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"