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Tag: "malaria" at biology news

Genome of deadly amoeba shows surprising complexity, evidence of lateral gene transfer

...as many as 100,000 deaths a year -- second only to malaria as a cause of morbidity and mortality from a protist. The disease caused by E. histolytica is called amebiasis. The sequencing of E. histolytica was a collaborative effort led by The Institute for Genomic Research (TIGR) in Rockville, MD, and by the...

Ecological destruction fuels emerging diseases

...s are coming from." In fact, while parasites like malaria are well known, we may have identified only a fraction of the total number of the world's parasites, and the prospect of cataloguing them poses a daunting technical challenge. Since the physical characteristics of many parasites are very similar, Dr....

Ancient olfaction protein is shared by many bugs, offering new pest control target

...ages corn and tobacco), and Anopheles gambiae, the malaria mosquito. When the medfly, moth, and mosquito versions (or "orthologues") of Or83b were expressed in fruit flies that were missing their own version of the gene, the flies' sense of smell was restored, arguing not only that the gene's sequence has be...

Spider Venom Could Yield Eco-Friendly Insecticides

...itial effectiveness of DDT in agricultural use and malaria eradication programs led many to view chemical insecticides as a panacea. But widespread use of the chemicals has boosted insects' resistance, even to increased dosages, while the environmental damage and human health risks associated with the chemic...

Scientists reveal molecular secrets of the malaria parasite

In an innovative project with implicationsfor malaria vaccine development, scientists have used genomics...roteomics and gene expression studies to trace how malaria parasitesevolve on a molecular level as they move between their hosts and insectvectors.That focus o...

Simple drug has the potential to save many lives threatened by malaria

A simple drug, given to children with severe malaria before they reach hospital, has the potential to s...'s BMJ. Every year over a million children die of malaria in Africa. The majority of fatalities occur outside hospital, especially in rural areas. For those w...

Examination of internal 'wiring' of yeast, worm, and fly reveals conserved circuits

...ce of every gene in the genomes of everything from malaria pathogens and mosquitoes to mouse and human. Databases of genomic information have been combined with databases that list the precise subunit sequence of proteins as well. Cross-species DNA and protein comparisons have become routine for all biologis...

Protein offers way to stop microscopic parasites in their tracks

...hem develop drugs to stop or slow cell invasion by malaria and other parasites known as apicomplexans. Resul...r into other apicomplexan parasites, which include malaria and Cryptosporidium. Malaria, which is spread by mosquito bites, kills at least 1 million people per...

Molecular models advance the fight against malaria

...h from Dartmouth Medical School, demonstrating how malaria parasites form mutations that make them stubbornly...d successfully introduced five mutations that make malaria resistant to the anti-malarial drug, atovaquone. The study, featured as the cover story of the April...

Reducing malarial transmission in Africa

There are 300 million cases of malaria each year worldwide, causing one million deaths. A...test challenges facing Africa in the fight against malaria is drug resistance; resistance to chloroquine (CQ), the cheapest and most widely used antimalarial, ...

WHO Warns Of Increased Risk Of Vector-borne Diseases In Tsunami-affected Areas

...ut increased risk of vector-borne diseases such as malaria and dengue fever across tsunami-affected areas in ...ies in the region are endemic for dengue fever and malaria except the Maldives, which has no malaria cases but does have dengue cases. With the onset of the ra...

Sickle cell and protection against malaria

...om Kilifi, Kenya, show that the protection against malaria given by carrying the gene for sickle cell haemogl... and then declined. It is estimated that cases of malaria causes approximately a million deaths yearly, the overwhelming number of which are young children in...

New Estimates For The Causes Of Child Deaths Worldwide

...e to six causes: pneumonia (19%), diarrhoea (18%), malaria (8%), neonatal sepsis or pneumonia (10%), preterm ...rrhoea, and undernutrition in all WHO regions, and malaria in the Africa region. In all regions, deaths in the neonatal period, primarily due to preterm delive...

Measles Deaths Worldwide Drop By Nearly 40% Over Five Years

...revent measles and polio, mosquito nets to prevent malaria and de-worming tablets. Millions of children still remain at risk from measles. Malnourished and un-immunized children under five years of age, especially infants, are at high risk of contracting measles and are more vulnerable to death. The vast ma...

Natural Killers Could Lead to New Hepatitis Treatments

...is can be a reaction to viruses, parasites such as malaria or other infections. Learning to “call off?the NKT cell's pursuit and attack could offer a treatment for hepatitis and associated complications. The researchers, led by Dan Littman, a Howard Hughes Medical Institute investigator at New York Universi...

Aircraft Cabin Ventilation Influences The Transmission Of Diseases In-flight

...sinsecting aircraft travelling from countries with malaria and other vector-borne disease only five countries currently do so (Australia, Caribbean, India, Kiribati, and Uruguay). The authors believe the aviation industry and medical community should educate the general public on health issues related to ai...

Cancer drug slows poxvirus in mice

...y transmitted infections, influenza, tuberculosis, malaria and illness from potential agents of bioterrorism. NIAID also supports research on transplantation and immune-related illnesses, including autoimmune disorders, asthma and allergies. ### Reference: PM Reeves et al. Disabling poxvirus pathogenesis b...

UN: World in big ecological mess

...influence the abundance of human pathogens such as malaria and cholera, as well as the risk of emergence of new diseases. Malaria, for example, accounts for 11 per cent of the disease burden in Africa and had it been eliminated 35 years ago, the continent's gross domestic product would have increased by $100...

Malaria mechanism revealed

... the molecular structure of a protein that enables malaria parasites to invade red blood cells, researchers h... "Niraj Tolia [the first author of the study] had malaria when he was young. So when he joined my lab as a graduate student, it didn't take long for me to con...

Malaria killing a million a year

The prevention and treatment of malaria has made progress since 2000, but an annual death ...arasitic disease makes a comeback, the first joint malaria report from the UN World Health Organization (WHO) and UN Children's Fund (UNICEF) says. The report...

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