Scientists Make Significant Discoveries in Mosquitoes and Malarial Parasite

by Savitha on  February 06, 2010 at 12:37 AM Research News
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In the second study, scientists in Australia identified a mechanism that helps Plasmodium falciparum, the most lethal of the five malarial parasites, to infiltrate blood cells and evade the body's defenses.

The parasite dispatches hundreds of so-called "effector" proteins into the blood cell's cytoplasm, modifying the cell and masking the invader from the immune system.

One of the primers for this is an enzyme called Plasmepsin V.

"Plasmepsin V is responsible for determining that all the hundreds of effector proteins are exported. If we could find drugs to block Plasmepsin V, the malaria parasite would die," said Alan Cowman of the Walter and Liza Hall Institute in Melbourne.

There were 247 million cases of malaria in 2006, causing nearly one million deaths, according to the World Health Organisation (WHO) website. Most of the fatalities were African children.

Countries that have widespread incidence of malaria are also hit economically, losing as much as 1.3 percent of their gross domestic product (GDP), says the WHO.

Source-AFP
SAV
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