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Blood Disorders
Cancer
Cardiovascular Disorders
Communication Disorders
Congenital Anomalies
Digestive Disorders
Ear, Nose and Throat
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Conditions and Diseases :: Health
Today's News:
National Institutes of Health (NIH) News Releases
Barrier in Mosquito Midgut Protects Invading Pathogens
Thu, 11 Mar 2010 15:31:00 -0500
Scientists studying the Anopheles gambiae mosquito — the main vector of malaria — have found that when the mosquito takes a blood meal, that act triggers two enzymes to form a network of crisscrossing proteins around the ingested blood. The formation of this protein barrier, the researchers found, is part of the normal digestive process that allows so-called "healthy" or commensal gut bacteria to grow without activating mosquito immune responses. But there is a downside: The barrier also prevents the mosquito's immune defense system from clearing any disease-causing agents that may have slipped into the blood meal, such as the Plasmodium malaria parasite, which in turn can be passed on to humans.
Conditions_and_Diseases RSS feed
Barrier in Mosquito Midgut Protects Invading Pathogens
Thu, 11 Mar 2010 15:31:00 -0500
Scientists studying the Anopheles gambiae mosquito — the main vector of malaria — have found that when the mosquito takes a blood meal, that act triggers two enzymes to form a network of crisscrossing proteins around the ingested blood. The formation of this protein barrier, the researchers found, is part of the normal digestive process that allows so-called "healthy" or commensal gut bacteria to grow without activating mosquito immune responses. But there is a downside: The barrier also prevents the mosquito's immune defense system from clearing any disease-causing agents that may have slipped into the blood meal, such as the Plasmodium malaria parasite, which in turn can be passed on to humans.
Conditions_and_Diseases RSS feed
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