Detecting malaria early to save lives: New optical technique promises rapid and accurate diagnosis

WASHINGTON, April 18—Correctly and quickly diagnosing malaria is essential for effective and life-saving treatment. But rapid detection, particularly in remote areas, is not always possible because current methods are time-consuming and require precise instrumentation and highly skilled microscopic analysis. Now, a promising new optical imaging system, described in a paper published today in the Optical Society’s (OSA) open-access journalBiomedical Optics Express, may make the diagnosis of this deadly disease much easier, faster, and more accurate. Read More

The contribution of Plasmodium chabaudi to our understanding of malaria

Trends in Parasitology, Volume 28, Issue 2, February 2012, Pages 73-82
Robin Stephens, Richard L Culleton, Tracey J Lamb.
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Challenges and prospects for malaria elimination in the Southern Africa region

Acta Tropica, Volume 121, Issue 3, March 2012, Pages 207-211
William J Moss, Douglas E Norris, Sungano Mharakurwa, Alan Scott, Modest Mulenga, Peter R Mason, James Chipeta, Philip E Thuma, for the Southern Africa ICEMR Team.
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Management of uncomplicated malaria in febrile under five-year-old children by community health workers in Madagascar: reliability of malaria rapid diagnostic tests

Background:
Early diagnosis, as well as prompt and effective treatment of uncomplicated malaria, are essential components of the anti-malaria strategy in Madagascar to prevent severe malaria, reduce mortality and limit malaria transmission. The purpose of this study was to assess the performance of the malaria rapid diagnostic tests (RDTs) used by community health workers (CHWs) by comparing RDT results with two reference methods (microscopy and Polymerase Chain Reaction, PCR). Read More

Differences in selective pressure on dhps and dhfr drug resistant mutations in western Kenya

Background:
Understanding the origin and spread of mutations associated with drug resistance, especially in the context of combination therapy, will help guide strategies to halt and prevent the emergence of resistance. Unfortunately, studies have assessed these complex processes when resistance is already highly prevalent. Even further, information on the evolutionary dynamics leading to multidrug-resistant parasites is scattered and limited to areas with low or seasonal malaria transmission. Read More

Antibodies to malaria vaccine candidates are associated with chloroquine or sulphadoxine/pyrimethamine treatment efficacy in children in an endemic area of Burkina Faso

Background:
Patient immune status is thought to affect the efficacy of anti-malarial chemotherapy. This is a subject of some importance, since evidence of immunity-related interactions may influence our use of chemotherapy in populations with drug resistance, as well as assessment of the value of suboptimal vaccines. The study aim was to investigate relationship between antibodies and anti-malarial drug treatment outcomes. Read More

Low coverage of intermittent preventive treatment for malaria in pregnancy in Nigeria: demand-side influences

Background:
Nigeria instituted intermittent preventive treatment for malaria (IPTp) using sulphadoxine-pyrimethamine (SP) for pregnant women in 2001, but coverage remains low. This study examined the influence of demand side factors on IPTp coverage. Read More

Do patients adhere to over-the-counter artemisinin combination therapy for malaria? Evidence from an intervention study in Uganda

Background:
Increasing affordability of artemisinin combination therapy (ACT) in the African retail sector could be critical to expanding access to effective malaria treatment, but must be balanced by efforts to protect the efficacy of these drugs. Previous research estimates ACT adherence rates among public sector patients, but adherence among retail sector purchasers could differ substantially. This study aimed to estimate adherence rates to subsidized, over-the-counter ACT in rural Uganda. Read More

Prevalence of malaria infection in Butajira area, south-central Ethiopia

Background:
In 2005, the Ethiopian government launched a massive expansion of the malaria prevention and control programme. The programme was aimed mainly at the reduction of malaria in populations living below 2,000 m above sea level. Global warming has been implicated in the increase in the prevalence of malaria in the highlands. However, there is still a paucity of information on the occurrence of malaria at higher altitudes. The objective of this study was to estimate malaria prevalence in highland areas of south-central Ethiopia, designated as the Butajira area. Read More

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Biodiversity of Malaria in the World
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Artemisinin and artemisinin plus curcumin liposomal formulations: Enhanced antimalarial efficacy against Plasmodium berghei-infected mice

European Journal of Pharmaceutics and Biopharmaceutics, Volume 80, Issue 3, April 2012, Pages 528-534
Benedetta Isacchi, Maria Camilla Bergonzi, Margherita Grazioso, Chiara Righeschi, Alessia Pietretti, Carlo Severini, Anna Rita Bilia.
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Combination drug treatment can cut malaria by 30 percent

Malaria infections among infants can be cut by up to 30 per cent when antimalarial drugs are given intermittently over a 12 month period, a three-year clinical trial in Papua New Guinea has shown. Read More

Introducing birth control in mosquitoes

Grant to UC Riverside’s Alexander Raikhel can greatly help control population of disease-spreading mosquitoes

RIVERSIDE, Calif. — Female mosquitoes require energy for their egg development, which they acquire from vertebrate blood. But by sucking on blood, they become vectors of numerous disease pathogens of human and domestic animals. If the mechanisms that govern their egg production are better understood, novel approaches to controlling the reproduction and population of mosquitoes can be devised. Read More

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