Latest Plasmodium falciparum Stories

(Ivanhoe Newswire)--Malaria is a parasitic disease caused by Plasmodium and results in more than 750,000 deaths annually, but what if there was a more effective approach to curing it? Malaria is transported from one person to another by an infected mosquito. When the mosquito bites a human, a parasite called sporozoite is deposited in the skin. It then travels to the liver cells and multiplies to the point of affecting red blood cells and causing clinical symptoms. Common symptoms of malaria...

Malaria is a devastating disease caused by the Plasmodium parasite which is transmitted to humans by infected mosquitoes. Hundreds of millions of new cases of malaria are reported each year, and there are more than 750,000 malaria-related deaths annually. As a result, there is an urgent need for vaccines to combat infection. Now, a new study uncovers a powerful strategy for eliciting an immune response that can combat the parasite during multiple stages of its complex life cycle and describes...

(Ivanhoe Newswire) -- Snug inside a human red blood cell, the malaria parasite hides from the immune system and fuels its growth by digesting hemoglobin, the cell's main protein. The parasite, however, must obtain additional nutrients from the bloodstream via tiny pores in the cell membrane. Now, investigators from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, have found the genes that malaria parasites use to create these...

NIH researchers show parasites create feeding ion channels in blood cellsSnug inside a human red blood cell, the malaria parasite hides from the immune system and fuels its growth by digesting hemoglobin, the cell's main protein. The parasite, however, must obtain additional nutrients from the bloodstream via tiny pores in the cell membrane. Now, investigators from the National Institute of Allergy and Infectious Diseases (NIAID), part of the National Institutes of Health, have found the...

Wolbachia are bacteria that infect many insects, including mosquitoes. However, Wolbachia do not naturally infect Anopheles mosquitoes, which are the type that spreads malaria to humans. Researchers at the Johns Hopkins Bloomberg School of Public Health found that artificial infection with different Wolbachia strains can significantly reduce levels of the human malaria parasite, Plasmodium falciparum, in the mosquito, Anopheles gambiae. The investigators also determined that one of the...

Press release from PLoS GeneticsA human genetic variant associated with an almost 30 percent reduced risk of developing severe malaria has been identified. Scientists from the Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, and Kumasi University, Ghana, reveal that a variant at the FAS locus can prevent an excessive and potentially hazardous immune response in infected children. The study appears in the open-access journal PLoS Genetics on May 19.Severe malaria is a major...

Ivanhoe Newswire) -- A human genetic variant associated with an almost 30 percent reduced risk of developing severe malaria has been identified.Scientists from the Bernhard Nocht Institute for Tropical Medicine (BNITM), Hamburg, and Kumasi University, Ghana, reveal that a variant at the FAS locus can prevent an excessive and potentially hazardous immune response in infected children.Severe malaria is a major public health burden in Sub-Saharan Africa, where approximately one million...

Study will be published in Nature Medicine this Sunday, May 15, and may have impact in the fight against the diseaseA team of researchers have found that pre-existing malaria prevents secondary infection by another Plasmodium strain, the parasite responsible for malaria, by restricting iron availability in the liver of the host. This discovery will be published this Sunday, May 15, in Nature Medicine and has important implications for the management and prevention of malaria, a condition...

Researchers at the Johns Hopkins Bloomberg School of Public Health have identified a bacterium in field-caught mosquitoes that, when present, stops the development of Plasmodium falciparum, the parasite that causes malaria in humans. According to the study, the Enterobacter bacterium is part of the naturally occurring microbial flora of the mosquito's gut and kills the parasite by producing reactive oxygen species (or free radical molecules). The study is published in the May 13 edition of...

Using a pair of powerful genome-search techniques, researchers from the Harvard School of Public Health (HSPH), Harvard University, and the Broad Institute have identified several genes that may be implicated in the malaria parasite's notorious ability to rapidly evade drug treatments. Further testing revealed that one of the genes, when inserted into drug-sensitive parasites, rendered them less vulnerable to three antimalarial drugs.The successful experiments suggest that the genomic methods...