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Tag: "confirmed" at biology news

Expert dispels bird flu paranoia

..., sunlight and most detergents. Authorities have confirmed the dangerous H5NI strain of bird flu in South East Asia, Russia and Eastern Europe but not in Australia. They fear an epidemic if this strain mutates to spread into a people-to-people virus. "We need to be very alert for bird flu in poultry beca...

Wild birds help to create human flu vaccine

... The highly pathogenic avian flu-H5N1 finding was confirmed by the United States Department of Agriculture's (USDA) Southeast Poultry Research Laboratory. "This is good for humankind," said Dr. David Swayne, director of the USDA Southeast Poultry Laboratory, which was able to grow the virus from the Mongoli...

Gene expression profile helps predict chemotherapy response in ovarian cancer patients

... at the time of second-look surgery. The CRP also confirmed the importance of genes such as BAX in this process, which regulate the cell's response to chemotherapy agents such as paclitaxel. The authors then went on to compare the results of the CRP and the OCPP. "We found that together these two gene profil...

How E. coli bacterium generates simplicity from complexity

...s made available online Dec. 15. "Researchers have confirmed the complexity of individual parts of biochemical networks in E. coli and other model organisms, but our large-scale reconstruction of regulatory and metabolic networks involving hundreds of these parts has shown that all this genetic complexity yiel...

Some good news for the world's poor

... the developing world, research just published has confirmed details of a proven strategy to reduce poverty in ...rty line in China and India, respectively. It also confirmed that such poverty reduction effects were even larger in the earlier years of the Green Revolution. ...

Olfactory system detects pheromones that control reproduction

...al strain of the pseudorabies virus. These studies confirmed that the virus was capable of infecting all nuclei comprising the vomeronasal system. Next, the researchers postulated that one should be able to identify functional correlates of the anatomical circuit linking olfactory neurons and LHRH-producing n...

How Fruitflies Know It's Time for Lunch

...milar to klu, overexpress hug. Behavioral studies confirmed that too much hug reduces food intake and leads to stunted growth, while too little stimulates eating. Melcher and Pankratz selected a group of flies and blocked the synapses of their hug neurons to inhibit the neurons' activity. In contrast to contr...

Same-sex mating by fungi spawned infection outbreak, evidence suggests

...ng that the two might be related. Further analysis confirmed this initial finding, suggesting that the two C. gattii strains in Vancouver Island are either siblings or that one is the parent and the other the progeny. "Given that the minor outbreak form also exists in multiple locations in Australia, while th...

Underlying cause of massive pinyon pine die-off revealed

...ulis ) died between 2002 and 2003. The researchers confirmed the massive regional dieback of vegetation through both aerial surveys and analysis of satellite images of those states' pinyon-juniper woodlands. "Scientists are concerned about how fast vegetation will respond to climate change, but we don't have ...

Russian 'surrogate' alcohols are a killer

...en in Izhevsk, a city in central Russia. While we confirmed what we already knew, that a lot of vodka is drunk in Russia, we also found that ? a surprisingly large number of people ? seven percent ? were drinking substances containing alcohol but not meant to be drunk. We then decided to find out what was in...

NIAID researchers show how promising TB drug works

...hat resisted the killing power of PA-824. The team confirmed previous research suggesting that resistance usually occurs when M. tb lacks components called FGD1 and F420, neither of which interacts directly with the drug. Next, the investigators screened for PA-824-resistant M. tb that retained sensitivity to...

War on terror meets war on cancer

...later versions came from a dry, warm climate. That confirmed the government's belief the counterfeiters had ties with terrorists who moved from Eastern Europe to the Middle East. In 2000, the Drug Enforcement Administration began using Ehleringer's method to test thousands of drug samples each year. Slight di...

Sudden change in social status triggers genetic response in male fish, study finds

...ithin 10 minutes. In fact, laboratory analysis confirmed that there was twice as much egr-1 gene expression in the brain cells of ascending cichlids than in either dominant or subordinate males, suggesting that the erg-1 gene plays a crucial role in jumpstarting the whole physical transformation. "This i...

Zebrafish may hold key to improved cancer research

A new study has confirmed that research done with zebrafish may be able to play a critical role in learning about the genetic basis of cancer and the mutations that can lead to it - and identified one gene in particular, B-myb, whose function is essential to preventing tumors...

Plants reveal a secret and bring researchers nearer a cleaner future

... kinetics of the photosynthesis process. They have confirmed the existence of a fifth step in the catalysis process of water into oxygen, and have published their results in Science. Chlorophyll in plants absorbs light from the sun, which then becomes energy used by the so-called "oxygen-evolving complex" to...

PLoS Medicine publishes first trial of effect of male circumcision on HIV infection

...lieving that the results of this one study must be confirmed by further studies before action can be recommended, especially given the relatively small number of new infections (20 among the circumcised men versus 49 among the controls) and the relatively large number of men who did not return for all the foll...

Study provides insight into cellular defenses against genetic mutation

...n construction. In recent years, Maquat's team has confirmed that complexes that identify early nonsense codons form at exon-exon junctions the places where each "must read" section is joined to the next in the mature chain. What Maquat and colleagues are learning is that much of the regulatory action of NMD...

Independent researchers confirm the existence of ivory-billed woodpecker

...rkansas, an independent team of ornithologists has confirmed the existence of the Ivory-billed Woodpecker. Working from previously unpublished data provided to them in the last few days by John Fitzpatrick and colleagues at Cornell University, ornithologists at Yale, the University of Kansas, and Florida Gulf...

Dendritic cells offer new therapeutic target for drugs to treat MS and other autoimmune disease

...igators. In the current work, the Hopkins team has confirmed that the gene is activated in dendritic cells, whose role is to distribute "look here" information about unwanted foreign invaders to soldiering T-cells. "Someday, using a drug to block FLT3 gene signaling could stop dendritic cells from triggering...

Prions rapidly 'remodel' good protein into bad, Brown study shows

...it converted to the prion form. These results were confirmed in a series of experiments using different biochemical and genetic techniques. Because proteins can't replicate like DNA and RNA ?the genetic material in bacteria, viruses and other infectious agents ?the research helps explain the puzzling process ...

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