emergence 2 2

Tag: "emergence" at biology news

H5N1 avian flu virus vaccine induces immune responses in healthy adults

...n the nation's efforts to prepare for the possible emergence of a human pandemic of H5N1 avian influenza," notes NIH Director Elias A. Zerhouni, M.D. "We are working hard to address the many challenges that remain with regard to the development of an H5N1 vaccine," adds NIAID Director Anthony S. Fauci, M.D....

Typhoid fever led to the fall of Athens

...x, anthrax and measles have been implicated in the emergence and spread of this epidemic. A mass burial pit unearthed in the Kerameikos ancient cemetery of Athens and dated back to the time of the historical outbreak, provided the required skeletal material for the investigation of ancient microbial DNA. Ai...

Experimental TB drug effective against resistant and latent mycobacterium tuberculosis

...on-pathogenic organisms, which merely enhances the emergence of drug- resistant strains. No resistance has been encountered to FAS20013 in clinical isolates,. The short-term killing power of FAS20013 is greater than currently used drugs; for example, FAS20013 will kill more organisms in a 4-hour exposure than ...

Faster immune system testing set to improve poultry quality

...re found all over the world, as highlighted by the emergence of bird flu. Useful research and preventive tool Reduced immunity is a serious problem for commercial poultry producers worldwide. The major cause is viral infection. All viruses can cause immunosuppression to varying degrees but Marek's disease, ...

Treating populations infected with HIV and latent TB could speed the emergence of drug-resistant TB

...fold over the past 15 years. The main culprit? The emergence of HIV. When individuals are infected with both HI... may also have the perverse effect of speeding the emergence of drug-resistant TB. "We're not saying isoniazid preventive therapy policies are ill-advised," sa...

Minor mutations in avian flu virus increase chances of human infection

...conducted the recent study. "The potential for the emergence of a human-adapted H5 virus, either by re-assortment or mutation, is a clear threat to public health worldwide." Of the H5N1 strains isolated to date, the researchers looked at A/Vietnam/1203/2004 (Viet04), one of the most pathogenic H5N1 viruses s...

Supersized 'island' of resistance genes discovered in an infectious bacterium

... strains throughout the world, and help follow the emergence of new strains and understand their mode of evolution." ...

Climate change drives widespread amphibian extinctions

...says Scheiner: global warming and the accompanying emergence of infectious diseases are a real and immediate threat to biodiversity and a growing challenge for humankind. The decline of amphibians in apparently pristine, protected habitats in Costa Rica and elsewhere has perplexed conservation biologists sinc...

New test to detect rare proteins in blood

...o detect tumors at very early stages so that tumor emergence or reoccurrence can be rapidly treated or even pre...ficant prevention of tumor growth as well as tumor emergence and reoccurrence. Greene stresses that early treatment is far more effective than treating advanc...

Drug-resistant bacteria patterns in intensive care units changing nationally

...the heart, the lungs, and the digestive tract. The emergence of MRSA and other drug-resistant bacteria may be due in part to over-prescribing and overuse of antibiotics. Researchers at the Centers for Disease Control and Prevention examined MRSA data from more than 1,200 intensive care units (ICUs) from 1992...

ASU researchers find link between social behavior, maternal traits in bees

...n they were not reproductively active. Due to the emergence of colonies with queens responsible for reproducti...l behavior," Amdam said. "If we can understand the emergence social behavior in one system, we can use this insight to create a more general model. Once we have ...

Genes affecting blood pressure change as children become adults

...-year period. Most surprisingly, he says, was the emergence of novel genetic influences that accounted for up to a third of the total variation at age 18. "A substantial part of the individual differences between the twins were due to new genetic effects between this period of age 14 and 18," says Dr. Sniede...

Polymers show promise for lab-on-a-chip technology

... of liquid crystalline polymers, we anticipate the emergence of exciting new techniques in microfabrication that can be used to cheaply and efficiently pattern response materials," said Anastasia Elias, a PhD student in Dr. Michael Brett's group in the U of A Department of Electrical and Computer Engineering a...

UF scientists discover evolutionary origin of fins, limbs

...tures with the ancestor of all vertebrates. "The emergence of paired appendages was a critical event in the e...t form the vertebrae. These same genes dictate the emergence of symmetrical pairs of fins on the animal sides, showing a shared developmental mechanism in comple...

Innocuous intestinal bacteria may be reservoir for resistance

...e of antibiotics in animals is responsible for the emergence of drug-resistant Salmonella. For dairy farms rec...ology appears to play a more important role in the emergence of drug resistance in Salmonella than therapeutic antibiotic use," says Sanchez. ...

Breaks in hibernation help fight bugs

...finding could offer an insight into the spread and emergence of infectious disease in wildlife, and has potenti...could provide valuable insight into the spread and emergence of zoonotic diseases. ...

Massive duplication of genes may solve Darwin's 'abominable mystery' about flowering plants

...s. A whole-genome duplication explains the sudden emergence of novel traits better than a series of single-gene duplications, explains dePamphilis. "Some of the MADS-box genes and many other genes important in plant development were produced by paleopolyploidy." In addition to de Pamphilis, coauthors at Pen...

Fly's courtship sheds light on the formation of innate behaviors

...ne, fruitless, has been shown to be pivotal to the emergence of these stereotypical behaviours. Fruitless is known to generate a variety of similar but functionally different proteins, some of which are exclusively expressed in male flies. Using a mutant that specifically disrupts one form of the Fruitless pr...

New study reveals structure of E. coli multidrug transporter protein

...tious disease is being seriously undermined by the emergence of drug-resistant bacteria," says Geoffrey A. Chang, Ph.D., a Scripps Research associate professor and a member of the Skaggs Institute for Chemical Biology, who led the study. "Multidrug resistance develops in part through the expulsion of drugs by ...

Control measures fail to stop spread of new H5N1 virus

...that the vaccination itself might have facilitated emergence of this new variant. This emergence and rapid distribution of FL, despite the vaccination program that was started in September 2005, al...

1 2 3 4