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anopheles

Not Open Access | Field Efficacy of VectoMax FG and VectoLex CG Biological Larvicides for Malaria Vector Control in Northwestern Brazil

November 30, 2019 - 15:16 -- NOT Open Access
Author(s): 
Fontoura PS, da Costa AS, Ribeiro FS, Ferreira MS, Castro MC, Ferreira MU
Reference: 
J Med Entomol. 2019 Nov 21. pii: tjz220

Despite historical and contemporary evidence of its effectiveness, larval source management with insecticides remains little used by most malaria control programs worldwide. Here we show that environmentally safe biological larvicides under field conditions can significantly reduce anopheline larval density in fish farming ponds that have became major larval habitats across the Amazon Basin.

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NOT Open Access | Functional analysis of the three major PGRPLC isoforms in the midgut of the malaria mosquito Anopheles coluzzii

November 26, 2019 - 13:30 -- NOT Open Access
Author(s): 
Rodgers FH, Cai JA, Pitaluga AN, Mengin-Lecreulx D, Gendrin M, Christophides GK
Reference: 
Insect Biochemistry and Molecular Biology, 21 November 2019, 103288

Peptidoglycan recognition proteins (PGRPs) constitute the primary means of bacterial recognition in insects. Recent work in the model organism Drosophila has revealed the mechanisms by which the complement of PGRPs refine the sensitivity of different tissues to bacterial elicitors, permitting the persistence of commensal bacteria in the gut whilst maintaining vigilance against bacterial infection.

The male mosquito contribution towards malaria transmission: Mating influences the Anopheles female midgut transcriptome and increases female susceptibility to human malaria parasites

November 18, 2019 - 16:18 -- Open Access
Author(s): 
Farah Aida Dahalan, Thomas S. Churcher, Nikolai Windbichler, Mara K. N. Lawniczak
Reference: 
PLoS Pathog 15(11): e1008063

Mating causes dramatic changes in female physiology, behaviour, and immunity in many insects, inducing oogenesis, oviposition, and refractoriness to further mating. Females from the Anopheles gambiae species complex typically mate only once in their lifetime during which they receive sperm and seminal fluid proteins as well as a mating plug that contains the steroid hormone 20-hydroxyecdysone.

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Evaluating synthetic odours and trap designs for monitoring Anopheles farauti in Queensland, Australia

September 10, 2019 - 15:18 -- Open Access
Author(s): 
Bram van de Straat, Alexandra Hiscox, Willem Takken and Thomas R. Burkot
Reference: 
Malaria Journal 2019 18:299, 2 September 2019

Monitoring of malaria vectors is important for designing and maintaining effective control interventions as changes in vector-feeding habits can threaten the efficacy of interventions. At present, human landing catches remain the most common method for monitoring malaria vectors of the Anopheles punctulatus complex, including the Anopheles farauti group. The aims of this study were to evaluate the efficacy of different lures and fan-powered traps, including an odour blend that has been demonstrated to be attractive to African anophelines, in Queensland, Australia.

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Semi-field evaluation of the cumulative effects of a “Lethal House Lure” on malaria mosquito mortality

September 10, 2019 - 15:17 -- Open Access
Author(s): 
Antoine M. G. Barreaux, Welbeck A. Oumbouke, Innocent Zran Tia, N’guessan Brou, Alphonsine A. Koffi, Raphaël N’guessan and Matthew B. Thomas
Reference: 
Malaria Journal 2019 18:298, 30 August 2019

There is growing interest in the potential to modify houses to target mosquitoes with insecticides or repellents as they search for human hosts. One version of this ‘Lethal House Lure’ approach is the In2Care® EaveTube, which consists of a section of polyvinyl chloride (PVC) pipe fitted into a closed eave, with an insert comprising electrostatic netting treated with insecticide powder placed inside the tube. Preliminary evidence suggests that when combined with screening of doors and windows, there is a reduction in entry of mosquitoes and an increase in mortality. However, the rate of overnight mortality remains unclear. The current study used a field enclosure built around experimental huts to investigate the mortality of cohorts of mosquitoes over multiple nights.

Knowledge engagement in gene drive research for malaria control

April 30, 2019 - 15:29 -- Open Access
Author(s): 
Sarah Hartley, Delphine Thizy, Katie Ledingham, Mamadou Coulibaly, Abdoulaye Diabaté, Bakara Dicko, Samba Diop, Jonathan Kayondo, Annet Namukwaya, Barry Nourou, Léa Paré Toé
Reference: 
PLoS Negl Trop Dis 13(4): e0007233

Gene drive mosquitoes are a novel approach to vector control being developed to help tackle malaria. A gene drive increases the frequency of a desired gene and its phenotypic effect into a mosquito population through reproduction in relatively few generations [1]. Combining gene drive with the precision of gene editing, scientists are able to modify the Anopheles mosquito genome and push modifications through natural vector populations. 

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Cell-traversal protein for ookinetes and sporozoites (CelTOS) formulated with potent TLR adjuvants induces high-affinity antibodies that inhibit Plasmodium falciparum infection in Anopheles stephensi

April 29, 2019 - 13:13 -- Open Access
Author(s): 
Sakineh Pirahmadi, Sedigheh Zakeri, Akram A. Mehrizi, Navid D. Djadid, Abbas-Ali Raz, Jafar J. Sani, Ronak Abbasi and Zahra Ghorbanzadeh
Reference: 
Malaria Journal 2019 18:146, 24 April 2019

Plasmodium falciparum parasite is the most deadly species of human malaria, and the development of an effective vaccine that prevents P. falciparum infection and transmission is a key target for malarial elimination and eradication programmes. P. falciparum cell-traversal protein for ookinetes and sporozoites (PfCelTOS) is an advanced vaccine candidate. A comparative study was performed to characterize the immune responses in BALB/c mouse immunized with Escherichia coli-expressed recombinant PfCelTOS (rPfCelTOS) in toll-like receptor (TLR)-based adjuvants, CpG and Poly I:C alone or in combination (CpG + Poly I:C), followed by the assessment of transmission-reducing activity (TRA) of anti-rPfCelTOS antibodies obtained from different vaccine groups in Anopheles stephensi.

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Not Open Access | Plasmodium: Yet More Don’ts

February 9, 2019 - 18:51 -- NOT Open Access
Author(s): 
Miles B. Markus
Reference: 
Trends in Parasitology, Letter| Volume 35, Issue 2, P101-102, February 01, 2019

Anopheline’ is both an adjective (‘anopheline mosquito’) and a noun. Don’t use an upper case ‘A’, except at the beginning of a sentence; and do not italicize the word as if it is a Latinized genus name.

Change in Anopheles richness and composition in response to artificial flooding during the creation of the Jirau hydroelectric dam in Porto Velho, Brazil

February 23, 2017 - 16:24 -- Open Access
Author(s): 
Moreno S. Rodrigures, Elis P. Batista, Alexandre A. Silva, Fábio M. Costa, Verissimo A. S. Neto and Luiz Herman S. Gil
Reference: 
Malaria Journal 2017 16:87, 22 February 2017

The continual monitoring of these vectors during the late operational phase may be useful in order to understand how anophelines will behave in this area.

Draft Genomes of Anopheles cracens and Anopheles maculatus: Comparison of Simian Malaria and Human Malaria Vectors in Peninsular Malaysia

July 19, 2016 - 15:15 -- Open Access
Author(s): 
Yee-Ling Lau, Wenn-Chyau Lee, Junhui Chen, Zhen Zhong, Jianbo Jian, Amirah Amir, Fei-Wen Cheong, Jia-Siang Sum, Mun-Yik Fong
Reference: 
PLoS ONE 11(6): e0157893

Anopheles cracens has been incriminated as the vector of human knowlesi malaria in peninsular Malaysia.

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