Malaria News

Awards honour 'application of science to human problems'
AUSTRALIA DAY AWARDS: In less than a decade the use of immunosuppressant drugs following an organ transplant will be a thing of the past, suggests one of three researchers acknowledged in today's Australia Day Honours.
26/01/2015 9:24:00 AM  from ABC Malaria     Read More      Permalink
Hidden infection shortens life in birds
Mild infections without symptoms of illness can still lead to serious consequences by reducing the lifespan of the infected individuals, research shows. A new study has been carried out on malaria-infected migratory birds. The infection is thought to speed up the aging process by shortening the telomeres (i.e., the chromosomes ends) at a faster rate and thereby accelerating senescence. 
23/01/2015 8:17:27 AM  from Science Daily     Read More      Permalink
How malaria-spreading mosquitoes can tell you're home
Females of the malaria-spreading mosquito tend to obtain their blood meals within human dwellings. But is human odor enough as a reliable cue for the mosquitoes in finding humans to bite? Not quite, reports a team of entomologists. The researchers' experiments with female Anopheles gambiae show that the mosquitoes respond very weakly to human skin odor alone. Minute changes in concentrations of exhaled carbon dioxide are also required.
22/01/2015 2:54:37 PM  from Science Daily     Read More      Permalink
World's poor headed for better lives in 2030 through improvements in health, food security: Gates Foundation
Innovation will improve the lives of the poor faster in the next 15 years than at any time in history, billionaire philanthropist Bill Gates and his wife Melinda say.
22/01/2015  from ABC Health     Read More      Permalink
Today on New Scientist
All the latest on newscientist.com: meat the healthy way, world's riskiest nuclear site, Uber teaches city planners, "safer" GMOs, ultimate black and more
22/01/2015  from New Scientist     Read More      Permalink
Spatial-Temporal Variation and Primary Ecological Drivers of Anopheles sinensis Human Biting Rates in Malaria Epidemic-Prone Regions of China
by Zhoupeng Ren, Duoquan Wang, Jimee Hwang, Adam Bennett, Hugh J. W. Sturrock, Aimin Ma, Jixia Huang, Zhigui Xia, Xinyu Feng, Jinfeng Wang Background Robust malaria vector surveillance is essential for optimally selecting and targeting vector control measures. Sixty-two vector surveillance sites were established between 2005 and 2008 by the national malaria surveillance program in China to measure Anopheles sinensis human biting rates. Using these data to determine the primary ecological drivers of malaria vector human biting rates in malaria epidemic-prone regions of China will allow better targeting of vector control resources in space and time as the country aims to eliminate malaria. Methods We analyzed data from 62 malaria surveillance sentinel sites from 2005 to 2008.
22/01/2015  from PLoS     Read More      Permalink
Colonization of malaria vectors under semi-field conditions as a strategy for maintaining genetic and phenotypic similarity with wild populations
Malaria still accounts for an estimated 207 million cases and 627,000 deaths worldwide each year. One proposed approach to complement existing malaria control methods is the release of genetically-modified (GM) and/or sterile male mosquitoes. As opposed to laboratory colonization, this requires realistic semi field systems to produce males that can compete for females in nature. This study investigated whether the establishment of a colony of the vector Anopheles arabiensis under more natural semi-field conditions can maintain higher levels of genetic diversity than achieved by laboratory colonization using traditional methods. Wild females of the African malaria vector An.
21/01/2015  from Malaria Journal     Read More      Permalink
Remarkable diversity of intron-1 of the para voltage-gated sodium channel gene in an Anopheles gambiae / Anopheles coluzzii hybrid zone
Genomic differentiation between Anopheles gambiae and Anopheles coluzzii - the major malaria vectors in sub-Saharan Africa - is localized into large ?islands? toward the centromeres of chromosome-X and the two autosomes. Linkage disequilibrium between these genomic islands was first detected between species-specific polymorphisms within ribosomal DNA genes (IGS-rDNA) on the X-chromosome and a single variant at position 702 of intron 1 (Int-1702) of the para Voltage-Gated Sodium Channel (VGSC) gene on chromosome arm 2?L. Intron-1 sequence data from West and Central Africa revealed two clearly distinct and species-specific haplogroups, each characterized by very low polymorphism, which has been attributed to a selective sweep.
21/01/2015  from Malaria Journal     Read More      Permalink
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