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anopheles gambiae

Slc4-like anion transporters of the larval mosquito alimentary canal

April 6, 2012 - 08:43 -- Patrick Sampao
Author(s): 
Paul J. Linser, Marco Neira Oviedo, Taku Hirata, Theresa J. Seron, Kristin E. Smith, Peter M. Piermarini, Michael F. Romero
Reference: 
Journal of Insect Physiology, Volume 58, Issue 4, April 2012, Pages 551-562

MalariaWorldIn summary, our results indicate that the alimentary canal of larval mosquitoes exhibits robust expression of two SLC4-like transporters in locations that are consistent with a role in the regulation of luminal pH. The precise physiological contributions of each transporter remain to be determined.

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Open Access | Update on resistance status of Anopheles gambiae s.s. to conventional insecticides at a previous WHOPES field site, "Yaokoffikro", 6 years after the political crisis in Cote d'Ivoire

April 4, 2012 - 12:52 -- Patrick Sampao
Author(s): 
Koffi AA, Ahoua Alou LP, Adja MA, Kone M, Chandre F, N'Guessan R
Reference: 
Parasites & Vectors 2012, 5:68 (2 April 2012)

MalariaWorldThis was the first report detecting enhanced activity of these enzymes in An. gambiae s.s from Yaokoffikro, which could have serious implications in detoxification of insecticides.

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Open Access | Multicopper Oxidase-3 Is a Laccase Associated with the Peritrophic Matrix of Anopheles gambiae

April 4, 2012 - 08:01 -- Kabogo Ndegwa
Author(s): 
Minglin Lang, Michael R. Kanost, Maureen J. Gorman
Reference: 
PLoS ONE 7(3): e33985

MalariaWorldThe multicopper oxidase (MCO) family of enzymes includes laccases, which oxidize a broad range of substrates including polyphenols and phenylendiamines; ferroxidases, which oxidize ferrous iron; and several other oxidases with specific substrates such as ascorbate, bilirubin or copper.

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Open Access | Behavioural responses of Anopheles gambiae sensu stricto M and S molecular form larvae to an aquatic predator in Burkina Faso

April 2, 2012 - 14:48 -- Patrick Sampao
Author(s): 
Geoffrey Gimonneau, Marco Pombi, Roch K Dabire, Abdoulaye Diabate, Serge Morand and Frederic Simard
Reference: 
Parasites & Vectors 2012, 5:65

MalariaWorldHere, we explored behavioural responses to the presence of a predator in wild populations of the M and S molecular forms of An. gambiae that typically breed in permanent (e.g., rice field paddies) and temporary (e.g., road ruts) water collections.

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Open Access | Anopheles gambiae Antiviral Immune Response to Systemic O'nyong-nyong Infection

March 30, 2012 - 12:25 -- Patrick Sampao
Author(s): 
Joanna Waldock, Kenneth E. Olson, George K. Christophides
Reference: 
PLoS Negl Trop Dis 6(3): e1565.

MalariaWorldHere we have investigated the A. gambiae immune response to systemic ONNV infection using forward and reverse genetic approaches.

Open Access | IgG responses to the gSG6-P1 salivary peptide for evaluating human exposure to Anopheles bites in urban areas of Dakar region, Senegal

March 22, 2012 - 07:06 -- Kabogo Ndegwa
Author(s): 
Drame PM, Machault V, Diallo A, Cornelie S, Poinsignon A, Lalou R, Sembene M, Dos Santos S, Rogier C, Pages F, Le Hesran J, Remoue F
Reference: 
Malaria Journal 2012, 11:72 (16 March 2012)

MalariaWorldSpecific human IgG responses to gSG6-P1 peptide biomarker represent, at the population and individual levels, a credible new alternative tool to assess accurately the heterogeneity of exposure level to Anopheles bites and malaria risk in low urban transmission areas.

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Open Access | Anopheles gambiae Antiviral Immune Response to Systemic O'nyong-nyong Infection

March 14, 2012 - 14:26 -- Kabogo Ndegwa
Author(s): 
Joanna Waldock, Kenneth E. Olson, George K. Christophides
Reference: 
PLoS Negl Trop Dis 6(3): e1565

MalariaWorldThis study is the first step in elucidating the antiviral mechanisms of A. gambiae mosquitoes, and has revealed interesting differences between A. gambiae and other invertebrates.

Open Access | Development of the Bi-Partite Gal4-UAS System in the African Malaria Mosquito, Anopheles gambiae

February 23, 2012 - 09:14 -- Kabogo Ndegwa
Author(s): 
Amy Lynd, Gareth John Lycett
Reference: 
PLoS ONE 7(2): e31552

MalariaWorldFunctional genetic analysis in Anopheles gambiae would be greatly improved by the development of a binary expression system, which would allow the more rapid and flexible characterisation of genes influencing disease transmission, including those involved in insecticide resistance, parasite interaction, host and mate seeking behaviour.

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Reproductive success in Anopheles arabiensis and the M and S molecular forms of Anopheles gambiae: Do natural sporozoite infection and body size matter?

February 15, 2012 - 15:04 -- Patrick Sampao
Author(s): 
Alpha Seydou Yaro, Abdoulaye M. Touré, Amadou Guindo, Mamadou B. Coulibaly, Adama Dao, Moussa Diallo, Sekou F. Traoré
Reference: 
Acta Tropica, Volume 122, Issue 1, April 2012, Pages 87-93

MalariaWorldThe reproductive success of wild-caught Anopheles arabiensis and the M and S molecular forms of Anopheles gambiae was investigated by comparing females infected with Plasmodium falciparum sporozoites to females free of sporozoites.

Anopheles gambiae resistance to pyrethroid-treated nets in cotton versus rice areas in Mali

February 15, 2012 - 14:59 -- Patrick Sampao
Author(s): 
Moussa Fane, Ousmane Cissé, Cheick Sékou F. Traore, Philippe Sabatier
Reference: 
Acta Tropica, Volume 122, Issue 1, April 2012, Pages 1-6

MalariaWorldThe objective of this study was to evaluate the efficacy of alpha-cypermethrin treated nets in settings where insecticides are used against pests.

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