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Tag: "causes" at biology news

Multiple Campylobacter Genomes Sequenced

... a Campylobacter species is one of the most common causes of human bacterial gastroenteritis. In the US, 15 ...rmally found in cattle, swine, and birds, where it causes no problems. But the illness can also be caused by C. coli (also found in cattle, swine, and birds),...

US life expectancy about to decline, researchers say

...ing decades the risk of death from obesity-related causes is about to rise. The hardest hit will be minorities, because of limited access to health care and because they have experienced the most rapid increases in obesity in recent years, according to the authors. It is well documented that obesity is ass...

Surprising findings reported about iron overload

...orldwide, is prevalent in the South, and sometimes causes organ damage when severe iron deposition occurs du... in 1996. At that time, little was known about the causes of iron overload in other racial/ethnic groups. Major findings of the study include: * Caucasi...

Norovirus, AIDS vaccine and Hepatitis Virus

...es (NoV's) are considered to be one of the leading causes of nonbacterial gastro-related illnesses resulting in over 23 million cases annually. In the study stool samples were collected from 34 patients with traveler's diarrhea and tested for the presence of norovirus. The virus was detected in 65 percent ...

Epstein-Barr virus protein crucial to its role in blood cancers

...s lymphoma, and nasopharyngeal carcinoma, and also causes the well-known disease, infectious mononucleosis. As many as 95 percent of adults 20 years and older have been infected with EBV, but show no symptoms. "Viruses that are associated with cancers typically target the cell cycle to gain control," says ...

Defensins neutralize anthrax toxin

...s lymphoma, and nasopharyngeal carcinoma, and also causes the well-known disease, infectious mononucleosis. As many as 95 percent of adults 20 years and older have been infected with EBV, but show no symptoms. "Viruses that are associated with cancers typically target the cell cycle to gain control," says ...

Viral protein influences key cell-signaling pathway

...n't understand how it prolongs T-cell survival and causes their proliferation. This study's findings offer ... that examine how HTLV-1 affects T lymphocytes and causes cancer. The p12 gene is called an "accessory gene" because the protein encoded by the gene seemed u...

Discovery Promises Simpler Therapy for Sickle Cell Disease

Durham, N.C. ?A new understanding of the causes for symptoms of sickle cell disease, a condition affecting one in every 600 African-Americans, has resulted from a study by researchers at Duke University Medical Center and Howard Hughes Medical Institute (HHMI). Their findings may lead to a new, mo...

Gene Therapy Cures Inherited Liver Disease In Rats

... a inherited liver disease in which lack of a gene causes the accumulation of bilirubin –which, untreated, results in jaundice and brain damage, said researchers at Baylor College of Medicine in a report in the Proceedings of the Natural Academy of Sciences. "This is the first time this disease (Crigler-Na...

Researchers identify protein crucial for survival of Lyme-disease bacterium

When the tick-borne bacterium that causes Lyme disease lacks a specific protein that respond... National Academy of Sciences. The bacterium that causes Lyme disease lives in infected mammals and in the midgut of ticks. When an infected tick bites an an...

Light therapy may combat fungal infections, new evidence suggests

...o contribute to the rapidity with which the fungus causes lethal infection in the mammalian host," Heitman said. "It is therefore conceivable that light could be used as a therapy for fungal infections, particularly infections at the body surface, such as those of skin or nails." Laser therapy might also be...

Promising new West Nile therapy cures disease in mice

...s the virus invades the central nervous system and causes paralysis or coma. "We could give this antibody to mice as long as five days after infection, when West Nile virus had entered the brain, and it could still cure them," says Washington University senior investigator Michael Diamond, M.D., Ph.D., who ...

Birds brains reveal source of songs

...se results suggested that the AFP circuitry itself causes the juvenile bird's experimentation with various sounds and sequences, and that such explorations are essential to learning songs. Deactivating the AFP after a bird had already learned the correct song had no affect on its continued proficiency. The...

Buying Time Through Hibernation on Demand

...function, in turn, is what the researchers believe causes the organism to shut down metabolically and enter a hibernation-like state. In each case, upon re-exposure to normal room air, the organisms quickly regained normal function and metabolic activity with no long-term negative effects. If Roth and coll...

U-M team recovers ancient whale in Egyptian desert

...function, in turn, is what the researchers believe causes the organism to shut down metabolically and enter a hibernation-like state. In each case, upon re-exposure to normal room air, the organisms quickly regained normal function and metabolic activity with no long-term negative effects. If Roth and coll...

Chemicals in tattoo inks need closer scrutiny

... lungs. It is unclear, however, what the specific causes of these reactions might be, and the only way to gain better understanding is to know what chemicals make up the inks, the researchers say. Finley-Jones and Wagner expect that the variation found in their testing and the potential presence of toxic m...

Researchers uncover sequence of major rice pathogen

...enemy of rice: Magnaporthe grisea, the fungus that causes rice blast disease. Dr. Ralph Dean, professor of plant pathology and director of North Carolina State University's Center for Integrated Fungal Research, is the lead author of a research paper that describes the M. grisea genome, published in the Ap...

Silence the gene, save the cell: RNA interference as promising therapy for ALS

... in transgenic mice to silence a mutated gene that causes inherited cases of amytrophic lateral sclerosis (A...3. In addition to silencing the mutated gene that causes ALS, the EPFL researchers were able to simultaneously deliver a normal version of the gene to motor ...

Brain-mapping technique aids understanding of sleep, wakefulness

...ke. In humans, a lack of, or deficiency in, orexin causes narcolepsy, a rare disease in which people uncontr...akefulness." Dr. Yanagisawa said the trigger that causes the sleep "seesaw" to tip from one side to the other and maintain a proper balance between time spen...

Sickle cell and protection against malaria

...n declined. It is estimated that cases of malaria causes approximately a million deaths yearly, the overwhelming number of which are young children in sub-Saharan Africa. It has been known for many years that in those areas most afflicted by malaria the gene for sickle cell hemoglobin (HbS) occurs very fre...

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