Gene thwarts some pathogens, gives access to others, could save crops
...s. But unexpectedly, it is completely resistant to virulent strains of the biotrophic bacteria." The study of BIK1's role in plant resistance to these two types of pathogens appeared in the January issue of the journal Plant Cell. The study also shows that the gene impacts plant growth and development as evid...New cellular flaw found in some virulent breast cancers
...rowth switch, CDK4 kinase, causing it to unleash a virulent proliferation of cancer cells and creating a tumor with a very poor prognosis. "The development of cancer drugs like Gleevec and Iressa have shown that it is possible to block the action of kinases," said Sicinski, "so we hope that these findings wil...Plant defenses prompt bacterial countermeasure in the form of 'island' DNA excision
...mechanisms can directly drive the evolution of new virulent forms of a bacterial pathogen....'New' science gleans knowledge from ancient lands and societies
... we hypothesize replaced and extinguished the less virulent American strains, may shed light on determinants of virulence today, especially important in situations where antibiotic therapy is either not available or ineffective," Buikstra says. In a further extension of the TB studies in the Americas, the re...'Good' bacteria could save patients from infection infection by deadlier ones
...ptic soap may actually open an avenue for the more virulent forms of bacteria to attack patients. This is so b...would be no environmental "incentive" for the more virulent strains to develop. Any patients needing antibiotics would be transferred to hospitals where they ar...UW scientists report a new method to speed bird flu vaccine production
... virus - whose genes are manipulated to disarm its virulent nature - can be seeded into chicken eggs to gener...an influenza viruses." When a new strain of highly virulent influenza emerges to infect humans, vaccine makers must tailor their vaccines to match it because, g...Could plain soap and probiotics beat hospital bugs?
... When the surgeon then goes to the wards, the more virulent bacteria may settle into the areas left vacant. As a first step, the surgeon could use probiotics to try and prevent this sequence of events, for example by dipping their hands into a probiotic substance such as yoghurt."...Cell cultures can sort out CJD and scrapie infectious agents
...ldt-Jacob Disease (CJD) prevents infection by more virulent strains and that the protection requires persistent replication by the infectious agent, but not misfolded prions. The "prion diseases" including Mad Cow Disease, scrapie and CJD have been in recent news because of their devastating effects on the b...Same-sex mating by fungi spawned infection outbreak, evidence suggests
...of the same sex or "mating type" produced the more virulent form. That strain has now taken hold and appears t...the researchers identified two forms: an extremely virulent major strain, which accounted for 95 percent of all samples, and a less virulent and less common str...CU's Torres discusses avian flu and policy
ITHACA, N.Y. -- If a virulent strain of avian influenza ever struck the U.S. poultry industry, this country probably would fare better than many other nations due to careful biosecurity procedures in force. But if the virus develops an ability to pass from one human to another, ...Reconstructed 1918 flu virus providing insights for potential pandemics
...predict which viruses will become pandemics or how virulent a pandemic virus will be. Understanding the Spanish flu, the most virulent and deadly pandemic in recent history, may provide the information needed to anticipate which flu vi...First big influenza genome study reveals flu evolution
...d millions of deaths. Today, scientists worry that virulent influenza strains in other species, such as the H5N1 bird flu strain found in poultry and migratory birds in Asia and Russia, will jump the species barrier into humans and trigger a new pandemic. Although researchers first isolated the influenza vi...New possibilities for flu antiviral and vaccine research emerge from 'Spanish flu' virus
...als or other interventions that would work against virulent pandemic or epidemic influenza viruses," said Tumpey. "Science is publishing this study because it provides information necessary for developing drugs and vaccines that could help prevent another global flu pandemic. We carefully considered the impli...CU virologist finds contagious equine flu in dogs
...test to see if it was an avian flu virus, like the virulent H5N1 that has jumped from birds to humans over the last few years. A highly sensitive test -- called a PCR (polymerase chain reaction) that amplifies and detects small amounts of DNA or RNA in a blood or tissue sample -- ruled out avian flu strains H...Study in Royal Society journal on possiblity of human organ regeneration
...y a major role in protecting their hosts from more virulent parasites. Contact: Dr T Rigaud, UMR 5561 - Equipe Ecologie Evolutive, Universite de Bourgogne, 6 boulevard Gabriel, DIJON, 21000, France...UF scientist finds unexpected link between cat and human AIDS viruses
... said. "We found that whenever we tried using less virulent strains of virus, we were able to make a better vaccine." Yamamoto's team was also surprised to discover that a core protein found in HIV also effectively protects cats against FIV. "So what does this mean to human AIDS research? The viruses HIV and ...Researchers discover why melanoma is so malignant
...n the early stages, melanoma can be a particularly virulent form of cancer, spreading through the body with an efficiency that few tumors possess. Now, researchers at Whitehead Institute for Biomedical Research have discovered one of the reasons why this particular skin tumor is so ruthless. Unlike other canc...Bacteria recognize antimicrobials, respond with counter-defenses
...ople. Some food science institutes anticipate that virulent strains of salmonella will become more common throughout the food chain. Learning how this sometimes deadly organism fights back against the immune system may lead to treatments that get around bacterial resistance. Work in this area may also suggest...UC Riverside researchers discover model organism for studying viruses that affect humans
...nt experimental host for studying some of the most virulent viruses that infect humans. The researchers publis...rward in the study of how some of the world's most virulent viruses, such as West Nile, SARS, Ebola and Hepatitis C interact with their hosts. "All these viruse......ven today the toxin is regarded as one of the most virulent natural carcinogenic substances. The tasteless toxin is produced by the mould aspergillus flavus. It grows in hot, arid regions, in the south-west of the US and in many regions of Africa and Asia. In Third World countries, particularly, this dangerou...