Tag: "cholera" at biology news

Avian cholera could spread from Great Salt Lake

...situation. "We haven't observed significant avian cholera outbreaks in North America since 1998, so we aren'...aks," says Mike Samuel, a USGS scientist and avian cholera expert. "Because recent research shows that birds are the primary reservoir for maintaining and spre...

New weapon in germ warfare: 'Jamming' bacteria signals stops cholera

A new treatment for the age-old scourge of cholera and perhaps a whole new type of antibiotic medicin...lisea pulchra can prevent the bacteria that cause cholera from switching on their disease-causing mechanisms. It seems likely that furanones can have the...

Tufts University's Andrew Camilli named Howard Hughes Medical Investigator

...the Institute. Dr. Camilli's work focuses on how cholera bacteria and pneumonia bacteria gain virulence in ...ized for discovering that the bacterium that cause cholera gain momentum and strength while passing through the digestive tract, potentially solving a long-sta...

Research breakthrough in the understanding of the spread of cholera

...ntestinal infection caused by the bacterium Vibrio cholera and is spread by contaminated water and food. Sci...chers believed that humans may be the reservoir of cholera disease in the inter-epidemic period. In 2001, the University of Haifa team, led by Prof Meir Broza...

Scripps scientists describe protein used by bacteria and cancer cells to resist drugs

...ed tuberculosis (TB) and typhoid fever, controlled cholera and gonorrhea, reduced staphylococcal dysentery, and lowered the incidence of many other pandemic bacterial infections. These antibiotics are basically natural chemicals (or derivatives of natural chemicals) produced by other bacteria or fungi in the...

To stop evolution: New way of fighting antibiotic resistance demonstrated by Scripps scientists

...ed tuberculosis (TB) and typhoid fever, controlled cholera and gonorrhea, reduced staphylococcal dysentery, and lowered the incidence of many other pandemic bacterial infections. These antibiotics are basically natural chemicals (or derivatives of natural chemicals) produced by other bacteria or fungi in the...

Say what? Bacterial conversation stoppers

...eria that mixes with E. coli in human guts. When cholera bacteria sense a quorum, they turn off their toxin...uelched much of the quorum-sensing response of the cholera bacteria, although the effect was not as dramatic as with the marine bacteria. "The real take-home p...

Small molecule inhibitor of cholera discovered

...Gulf states and Guatemala have raised the risks of cholera outbreaks, researchers at Harvard Medical School h...ve identified a new type of antibiotic against the cholera bacteria. While traditional antibiotics kill bacteria outright by interfering with processes essenti...

Plant wounds trigger bacteria

...le, others have shown that the bacteria that cause cholera express protein toxins only when they detect bile salts in the host's intestine. It will be interesting to see whether those bacteria also increase the replication of the genes necessary for disease." The bacterium A. tumefaciens employs a large tu...

UCF, NIH study: Effective, safe anthrax vaccine can be grown in tobacco plants

... and hepatitis, and improving vaccines for plague, cholera and other bioterrorism agents. Daniell is developing a new technology that would enable vaccines to be administered orally and allow effective and less expensive treatments to be more accessible worldwide. He believes fruits and vegetables such as ca...

HIV prevention hope: Yogurt bugs that make antiviral drugs

...nk out proteins that disable salmonella, shigella, cholera and other pathogens that enter the body through the mucous membranes. Ramratnam is a scientist with the Lifespan/Tufts/Brown Center for AIDS Research. Other members of the research team include Oliver Pusch with the Medical University of Austria, Dan...

The rising tide of ocean plagues: How humans are changing the dynamics of disease

...and changes in sea surface temperature can trigger cholera outbreaks thousands of miles away. "Human activiti...ace temperature in the Pacific Ocean are linked to cholera epidemics across the globe in Bangladesh. To predict and prepare for future outbreaks, cholera expe...

U-M researchers take new approach to defeating Gram-negative bugs

...er-known Gram negatives are salmonella, gonorrhea, cholera and meningicoccal meningitis, along with the bacteria that caused the black plague. Woodard and his collaborators worked on E. coli in part because it is one of the more common Gram-negative bacteria, and it is considered by researchers the gold stan...

Anthrax inhibitor counteracts toxin, may lead to new therapeutics

...g strategy by designing a polyvalent inhibitor for cholera toxin, demonstrating that this approach also could be used successfully to enhance the potency of polyvalent inhibitors directed to this target and, they suggest, others. They note the work also could be useful for creating specific target recognitio...

Scientists design potent anthrax toxin inhibitor

...nique could be used to design better therapies for cholera and other diseases," says NIH Director Elias A. Ze...researchers also created a polyvalent inhibitor of cholera toxin that functioned well in test-tube experiments. In the next phase of their research, Drs. Kane ...

Bacteria have their own immune system protecting against outside DNA

...reign DNA, bacteria that cause typhoid, dysentery, cholera and plague have evolved from harmless organisms into feared pathogens," explained Dr. William Navarre, a senior fellow at the UW and primary author of the study. "This research gives us an explanation of how pathogenic bacteria have evolved over mill...

HHMI professor's phage-hunters strike pay dirt

...are responsible for the toxins of diseases such as cholera and diphtheria. Jacobs, Hatfull's long-time collaborator and co-author on this paper, uses phages as a tool for understanding the genetics of tuberculosis (TB). "The mosaic nature of these bacteriophages is just so surprising," Jacobs said. "It's an ...

News tips from the Journal of Neuroscience

...authors injected the GP with the retrograde tracer cholera toxin subunit b (CTb), and then co-immunostained the striatum for CTb and dopamine receptors or opioid peptides. Surprisingly, they found evidence of all four proteins in both pallidal areas. This pattern was not affected by the presence of parkinson...

ACS News Service Weekly PressPac -- Nov. 29, 2006

...ibe producing sdAbs to a smallpox virus surrogate, cholera toxin, and other biothreats by harvesting antibodies from a library of over a billion different sdAbs engineered in the laboratory, which bypasses the need for injecting llamas with those substances. "The delivery speed and the sdAb protein character...

Stem cells get a grip

...asts. The uropod contact point was enriched in the cholera toxin B subunit, a lipid raft molecule, as well as the stem cell marker CD133. The researchers had seeded the outside of the progenitor cells with microscopic markers, quantum dot nanocrystals, and watched as the dots were taken into the cells an...

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