keyword
MENU ▼
Read by QxMD icon Read
search

Anopheles

keyword
https://www.readbyqxmd.com/read/29145400/zika-virus-an-updated-review-of-competent-or-naturally-infected-mosquitoes
#1
REVIEW
Yanouk Epelboin, Stanislas Talaga, Loïc Epelboin, Isabelle Dusfour
Zika virus (ZIKV) is an arthropod-borne virus (arbovirus) that recently caused outbreaks in the Americas. Over the past 60 years, this virus has been observed circulating among African, Asian, and Pacific Island populations, but little attention has been paid by the scientific community until the discovery that large-scale urban ZIKV outbreaks were associated with neurological complications such as microcephaly and several other neurological malformations in fetuses and newborns. This paper is a systematic review intended to list all mosquito species studied for ZIKV infection or for their vector competence...
November 2017: PLoS Neglected Tropical Diseases
https://www.readbyqxmd.com/read/29141726/status-of-insecticide-resistance-in-papua-new-guinea-an-update-from-nation-wide-monitoring-of-anopheles-mosquitoes
#2
Gussy Koimbu, Cyrille Czeher, Michelle Katusele, Muker Sakur, Lemen Kilepak, Anthony Tandrapah, Manuel W Hetzel, Justin Pulford, Leanne Robinson, Stephan Karl
Insecticide resistance (IR) monitoring is an important component of vector-borne disease control. The last assessment of IR in Papua New Guinea (PNG) was conducted in 2010. Since then, vector populations have been exposed to higher levels of pyrethroids with the continued nation-wide distribution of insecticide-treated nets. Here, we provide an update on phenotypic IR in four highly malaria-endemic areas of PNG. IR against deltamethrin, lambda-cyhalothrin, and dichlorodiphenyltrichloroethane was assessed using World Health Organization bioassays...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29141714/falciparum-malaria-outbreak-in-sabah-linked-to-an-immigrant-rubber-tapper
#3
Saffree Mohammad Jeffree, Kamruddin Ahmed, Nazarudin Safian, Rohaizat Hassan, Omar Mihat, Khamisah Awang Lukman, Shamsul Bahari Shamsudin, Fadzilah Kamaludin
Sabah is a Malaysian state situated in the northern part of Borneo, and it is endemic for malaria. The incidence of malaria is the lowest (0.05/1,000 population) in Penampang districts of Sabah. In June 26, 2012, two Plasmodium falciparum malaria cases were notified to public health department from a village in Penampang. Immediate investigation was initiated to identify the risk factors and to institute control measures. We performed active case finding by asking household members of all houses in the village regarding malaria symptoms and by examining blood smears...
November 6, 2017: American Journal of Tropical Medicine and Hygiene
https://www.readbyqxmd.com/read/29138663/toluidine-blue-rapid-and-simple-malaria-parasite-screening-and-species-identification
#4
Rupali Awale, Ratnaprabha Maji, Parag Patil, Raghavendra Lingiah, Ashok Kumar Mukhopadhyay, Subhadra Sharma
Malaria, a febrile illness mostly confined to the tropical countries is transmitted by bite of infected female Anopheles mosquito. In 2015 alone, 88% of the malaria burden and 90% deaths due to malaria were confined to the African and Asian countries. Although number of tests are available for rapid diagnosis and screening for malaria, peripheral blood smear examination remains the gold standard. Leishman stain is recommended by WHO however herein we evaluate one of the alternative methods of staining which is simple and rapid...
2017: Pan African Medical Journal
https://www.readbyqxmd.com/read/29138079/genetic-structure-and-phenotypic-variation-of-anopheles-darlingi-in-northwest-colombia
#5
Mariano Altamiranda-Saavedra, Jan E Conn, Margarita M Correa
This study evaluated the influence of environmental heterogeneity on Anopheles darlingi genetic and morphometric traits at a microgeographic level. Specimens of An. darlingi collected from multiple municipalities in the Colombian malaria endemic region Urabá-Bajo Cauca and Alto Sinú (UCS) were analyzed using 13 microsatellite loci. Spatial genetic structure, population variation and wing geometric morphometric analyses were performed. Microsatellite results showed low genetic differentiation and high gene flow among populations; four highly admixed subpopulations were detected with no particular association to the municipalities...
November 11, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29132374/yeast-interfering-rna-larvicides-targeting-neural-genes-induce-high-rates-of-anopheles-larval-mortality
#6
Keshava Mysore, Limb K Hapairai, Longhua Sun, Elizabeth I Harper, Yingying Chen, Kathleen K Eggleson, Jacob S Realey, Nicholas D Scheel, David W Severson, Na Wei, Molly Duman-Scheel
BACKGROUND: Although larviciding can reduce the number of outdoor biting malaria vector mosquitoes, which may help to prevent residual malaria transmission, the current larvicide repertoire is faced with great challenges to sustainability. The identification of new effective, economical, and biorational larvicides could facilitate maintenance and expansion of the practice of larviciding in integrated malaria vector mosquito control programmes. Interfering RNA molecules represent a novel class of larvicides with untapped potential for sustainable mosquito control...
November 13, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29128668/inhibition-of-the-complement-system-by-saliva-of-anopheles-nyssorhynchus-aquasalis
#7
Antonio Ferreira Mendes-Sousa, Vladimir Fazito Vale, Daniel Costa Queiroz, Adalberto Alves Pereira-Filho, Naylene Carvalho Sales da Silva, Leonardo Barbosa Koerich, Luciano Andrade Moreira, Marcos Horácio Pereira, Maurício Roberto Sant'Anna, Ricardo Nascimento Araújo, John Andersen, Jesus Gilberto Valenzuela, Nelder Figueiredo Gontijo
Anopheline mosquitoes are vectors of malaria parasites. Their saliva contains anti-hemostatic and immune-modulator molecules that favor blood feeding and parasite transmission. In this study, we describe the inhibition of the alternative pathway of the complement system (AP) by Anopheles aquasalis salivary gland extracts (SGE). According to our results, the inhibitor present in SGE acts on the initial step of the AP blocking deposition of C3b on the activation surfaces. Properdin, which is a positive regulatory molecule of the AP, binds to SGE...
November 8, 2017: Insect Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29128516/west-nile-virus-anopheles-flavivirus-a-novel-flavivirus-as-well-as-merida-like-rhabdovirus-turkey-in-field-collected-mosquitoes-from-thrace-and-anatolia
#8
Ceren Öncü, Annika Brinkmann, Filiz Günay, Sırrı Kar, Kerem Öter, Yasemen Sarıkaya, Andreas Nitsche, Yvonne-Marie Linton, Bülent Alten, Koray Ergünay
Mosquitoes are involved in the transmission and maintenance of several viral diseases with significant health impact. Biosurveillance efforts have also revealed insect-specific viruses, observed to cocirculate with pathogenic strains. This report describes the findings of flavivirus and rhabdovirus screening, performed in eastern Thrace and Aegean region of Anatolia during 2016, including and expanding on locations with previously-documented virus activity. A mosquito cohort of 1545 individuals comprising 14 species were collected and screened in 108 pools via generic and specific amplification and direct metagenomics by next generation sequencing...
November 8, 2017: Infection, Genetics and Evolution
https://www.readbyqxmd.com/read/29126433/mosquito-larvicidal-activity-of-cassia-tora-seed-extract-and-its-key-anthraquinones-aurantio-obtusin-and-obtusin
#9
Valentine C Mbatchou, David P Tchouassi, Rita A Dickson, Kofi Annan, Abraham Y Mensah, Isaac K Amponsah, Julia W Jacob, Xavier Cheseto, Solomon Habtemariam, Baldwyn Torto
BACKGROUND: The edible and medicinal leguminous plant Cassia tora L. (Fabaceae) is known to possess insecticidal properties against a wide range of plant-feeding insects. However, the bioactivity of extracts of this plant and their constituents against vectors of medical importance has been largely unexplored. We investigated the mosquito larvicidal activity of the seed extract and its major anthraquinones against larvae of the African malaria vector Anopheles gambiae (s.s.). METHODS: Third-fourth instar larval mortality was observed after 24, 48, 72 and 96 h of exposure to varying doses of the extracts, and two anthraquinones isolates identified using liquid chromatography- quadrupole time of flight mass spectrometry (LC-QtoF-MS)...
November 10, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29125244/abundance-and-distribution-of-anopheles-mosquitoes-in-a-malaria-endemic-area-along-the-thai-lao-border
#10
Nattapol Marasri, Hans J Overgaard, Anchana Sumarnrote, Kanutcharee Thanispong, Vincent Corbel, Theeraphap Chareonviriyaphap
Malaria is an important public health problem in Thailand, especially along international borders. In this study, we conducted a longitudinal entomological survey in six villages and rubber plantation sites to address the spatio-temporal abundance and behavior of malaria vectors in Ubon Ratchathani Province along the Thailand-Laos border. Adult female mosquitoes were collected by human landing collections (indoor and outdoor) and by cattle bait collections twice per year, during rainy and dry seasons. Mosquitoes were morphologically identified and sibling species were determined by allele-specific PCR...
December 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29125241/seasonal-dynamics-of-anopheles-species-at-three-locations-in-the-republic-of-korea
#11
Desmond H Foley, Terry A Klein, Heung Chul Kim, Myung-Soon Kim, Richard C Wilkerson, Cong Li, Genelle Harrison, Leopoldo M Rueda
Weekly changes in adult Anopheles species were monitored at Camp Humphreys (CH), Ganghwa Island (GH), and Warrior Base (WB), from May-October, 2009-2010 to explore the relationship between Plasmodium vivax development and vector dynamics in the Republic of Korea (ROK). Adult females were trapped and dissected to determine parity for estimating longevity, mortality, and birthrate. A degree-day (DD) method was used to estimate the extrinsic incubation period (EIP) of P. vivax and duration of the gonotrophic cycle and other life stages...
December 2017: Journal of Vector Ecology: Journal of the Society for Vector Ecology
https://www.readbyqxmd.com/read/29121250/mosquitoes-diptera-culicidae-collected-from-residential-yards-and-dog-kennels-in-florida-using-two-aspirators-a-sweep-net-or-a-cdc-trap
#12
C J Holderman, S A Gezan, A E S Stone, C R Connelly, P E Kaufman
Mosquito surveillance typically uses Centers for Disease Control and Prevention (CDC) mosquito light traps baited with CO2. From January 2013 to March 2015, we sampled seven field sites using three active mosquito-trapping techniques (two different aspirators and a sweep net) and the stationary CO2-baited CDC mosquito light trap to determine mosquito capture efficacy for each technique. Sampling occurred in four suburban backyards and three dog kennel facilities near Gainesville, FL, USA; species collection and relative abundance were measured...
November 6, 2017: Journal of Medical Entomology
https://www.readbyqxmd.com/read/29119308/cryptic-species-anopheles-daciae-diptera-culicidae-found-in-the-czech-republic-and-slovakia
#13
Hana Blažejová, Oldřich Šebesta, František Rettich, Jan Mendel, Viktória Čabanová, Martina Miterpáková, Lenka Betášová, Juraj Peško, Zdeněk Hubálek, Helge Kampen, Ivo Rudolf
We report the distribution of mosquitoes of the maculipennis complex in two distinct areas of the Czech Republic (Bohemia and South Moravia) and in one locality of neighbouring Slovakia with emphasis on the detection of the newly described cryptic species Anopheles daciae (Linton, Nicolescu & Harbach, 2004). A total of 691 mosquitoes were analysed using a species-specific multiplex PCR assay to differentiate between the members of the maculipennis complex. In the Czech Republic, we found Anopheles maculipennis (with a prevalence rate of 1...
November 8, 2017: Parasitology Research
https://www.readbyqxmd.com/read/29116006/analysis-of-near-infrared-spectra-for-age-grading-of-wild-populations-of-anopheles-gambiae
#14
Benjamin J Krajacich, Jacob I Meyers, Haoues Alout, Roch K Dabiré, Floyd E Dowell, Brian D Foy
BACKGROUND: Understanding the age-structure of mosquito populations, especially malaria vectors such as Anopheles gambiae, is important for assessing the risk of infectious mosquitoes, and how vector control interventions may impact this risk. The use of near-infrared spectroscopy (NIRS) for age-grading has been demonstrated previously on laboratory and semi-field mosquitoes, but to date has not been utilized on wild-caught mosquitoes whose age is externally validated via parity status or parasite infection stage...
November 7, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29115954/malaria-vectors-in-the-democratic-republic-of-the-congo-the-mechanisms-that-confer-insecticide-resistance-in-anopheles-gambiae-and-anopheles-funestus
#15
Luisa Nardini, Richard H Hunt, Yael L Dahan-Moss, Nanette Christie, Riann N Christian, Maureen Coetzee, Lizette L Koekemoer
BACKGROUND: The Democratic Republic of the Congo (DRC) is characterized as a holoendemic malaria area with the main vectors being Anopheles funestus and members of the Anopheles gambiae complex. Due to political instability and socio-economic challenges in the region, knowledge of insecticide resistance status and resistance mechanisms in these vectors is limited. Mosquitoes were collected from a mining site in the north-eastern part of the country and, following identification, were subjected to extensive testing for the target-site and biochemical basis of resistance...
November 7, 2017: Malaria Journal
https://www.readbyqxmd.com/read/29114059/effect-of-naturally-occurring-wolbachia-in-anopheles-gambiae-s-l-mosquitoes-from-mali-on-plasmodium-falciparum-malaria-transmission
#16
Fabio M Gomes, Bretta L Hixson, Miles D W Tyner, Jose Luis Ramirez, Gaspar E Canepa, Thiago Luiz Alves E Silva, Alvaro Molina-Cruz, Moussa Keita, Fouseyni Kane, Boïssé Traoré, Nafomon Sogoba, Carolina Barillas-Mury
A naturally occurring Wolbachia strain (wAnga-Mali) was identified in mosquitoes of the Anopheles gambiae complex collected in the Malian villages of Dangassa and Kenieroba. Phylogenetic analysis of the nucleotide sequence of two 16S rRNA regions showed that wAnga-Mali clusters with Wolbachia strains from supergroup A and has the highest homology to a Wolbachia strain isolated from cat fleas (Ctenocephalides). wAnga-Mali is different from two Wolbachia strains previously reported in A. gambiae from Burkina Faso (wAnga_VK5_STP and wAnga_VK5_3...
November 7, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/29113928/cerebral-malaria-causes-enduring-behavioral-and-molecular-changes-in-mice-brain-without-causing-gross-histopathological-damage
#17
Thaíze Lopes de Souza, Ana Claudia Beck Grauncke, Leandro Rodrigo Ribeiro, Fernanda Kulinski Mello, Sara Marchesan Oliveira, Fátima Brant, Fabiana S Machado, Mauro Schneider Oliveira
Malaria, parasitic disease considered a major health public problem, is caused by Plasmodium protozoan genus and transmitted by the bite of infected female Anopheles mosquito genus. Cerebral malaria (CM) is the most severe presentation of malaria, caused by P. falciparum and responsible for high mortality and enduring development of cognitive deficits which may persist even after cure and cessation of therapy. In the present study we evaluated selected behavioral, neurochemical and neuropathologic parameters after rescue from experimental cerebral malaria caused by P...
November 4, 2017: Neuroscience
https://www.readbyqxmd.com/read/29111355/transstadial-transmission-of-larval-hemocoelic-infection-negatively-affects-development-and-adult-female-longevity-in-the-mosquito-anopheles-gambiae
#18
Lisa D Brown, Grayson A Thompson, Julián F Hillyer
During all life stages, mosquitoes are exposed to pathogens, and employ an immune system to resist or limit infection. Although much attention has been paid to how adult mosquitoes fight infection, little is known about how an infection during the larval stage affects the biology of the resultant adult. In this study, we investigated whether a bacterial infection in the hemocoel of the African malaria mosquito, Anopheles gambiae, is transstadially transmitted from larvae to adults (both females and males), and whether immune stimulation in the hemocoel as a larva alters development or biological traits of the adult...
October 27, 2017: Journal of Invertebrate Pathology
https://www.readbyqxmd.com/read/29110724/quantifying-the-intensity-of-permethrin-insecticide-resistance-in-anopheles-mosquitoes%C3%A2-in-western-kenya
#19
Seline Omondi, Wolfgang Richard Mukabana, Eric Ochomo, Margaret Muchoki, Brigid Kemei, Charles Mbogo, Nabie Bayoh
BACKGROUND: The development and spread of resistance among local vectors to the major classes of insecticides used in Long-Lasting Insecticidal Nets (LLINs) and Indoor Residual Spraying (IRS) poses a major challenge to malaria vector control programs worldwide. The main methods of evaluating insecticide resistance in malaria vectors are the WHO tube bioassay and CDC bottle assays, with their weakness being determination of resistance at a fixed dose for variable populations. The CDC bottle assay using different insecticide dosages has proved applicable in ascertaining the intensity of resistance...
November 6, 2017: Parasites & Vectors
https://www.readbyqxmd.com/read/29110670/indoor-and-outdoor-malaria-vector-surveillance-in-western-kenya-implications-for-better-understanding-of-residual-transmission
#20
Teshome Degefa, Delenasaw Yewhalaw, Guofa Zhou, Ming-Chieh Lee, Harrysone Atieli, Andrew K Githeko, Guiyun Yan
BACKGROUND: The widespread use of indoor-based malaria vector control interventions has been shown to alter the behaviour of vectors in Africa. There is an increasing concern that such changes could sustain residual transmission. This study was conducted to assess vector species composition, feeding behaviour and their contribution to indoor and outdoor malaria transmission in western Kenya. METHODS: Anopheles mosquito collections were carried out from September 2015 to April 2016 in Ahero and Iguhu sites, western Kenya using CDC light traps (indoor and outdoor), pyrethrum spray catches (PSCs) (indoor) and pit shelters (outdoor)...
November 6, 2017: Malaria Journal
keyword
keyword
98642
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"