Search results for virulence factors
The key to survival and virulence for a fungal pathogen is autophagy
Feb 08, 2008 |
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Autophagy is a process whereby cells recycle material during stress situations, such as when nutrients are scarce. Some cells also use this process as an immune defense mechanism to eliminate pathogens. However, new data, ...
Researchers discover how infectious bacteria can switch species
Biology /
Oct 09, 2008 |
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Scientists from the Universities of Bath and Exeter have developed a rapid new way of checking for toxic genes in disease-causing bacteria which infect insects and humans. Their findings could in the future ...
Evolution of virulence regulation in Staphylococcus aureus
Biology /
Oct 09, 2008 |
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Scientists have gained insight into the complex mechanisms that control bacterial pathogenesis and, as a result, have developed new theories about how independent mechanisms may have become intertwined during evolution. The ...
New protein identified in bacterial arsenal
Mar 03, 2009 |
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(PhysOrg.com) -- Nearly a billion years ago, bacteria evolved an insidious means of infecting their hosts — a syringe-like mechanism able to inject cells with stealthy hijacker molecules. These molecules, ...
Bioinformatics sheds light on evolutionary origin of Rickettsia virulence genes
Mar 12, 2009 |
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Scientists from the Virginia Bioinformatics Institute (VBI) at Virginia Tech, the University of Maryland School of Medicine, and the University of Louisville have revealed that genes for a specific type of molecular secretion ...
Two-pronged protein attack could be source of SARS virulence
Oct 29, 2009 |
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Ever since the previously unknown SARS virus emerged from southern China in 2003, University of Texas Medical Branch at Galveston virologists have focused on finding the source of the pathogen's virulence — its ability to ...
Pathogen virulence proteins suppress plant immunity
Biology /
Apr 21, 2008 |
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Researchers from the Virginia Bioinformatics Institute (VBI) at Virginia Tech and their colleagues have identified a key function of a large family of virulence proteins that play an important role in the production of infectious ...
Researchers identify a worldwide-distributed clone of bacteria responsible for Legionnaire's disease
Biology /
Feb 06, 2008 |
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A study published online today in Genome Research describes new insights into Legionella pneumophila, the bacteria responsible for most cases of Legionnaires’ disease. This report investigates the genetic background of L. pneumop ...
A connected world gives viruses the edge
May 27, 2009 |
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That's one conclusion from a new study that looked at how virulence evolves in parasites. The research examined whether parasites evolve to be more or less aggressive depending on whether they are closely ...
Mutant parasites, unable to infect hosts, highlight virulence genes
May 30, 2007 |
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With a single approach, microbiologists at the University of Wisconsin-Madison have identified dozens of clues to how human parasites may infect their hosts.
Scientists identify blood component that turns bacteria virulent
Biology /
Nov 21, 2008 |
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Scientists from the Scripps Research Institute have discovered the key chemical that signals Bacillus anthracis, the bacterium that causes anthrax, to become lethal. This finding opens up new avenues of exploration for th ...
MRSA study suggests strategy shift needed to develop effective therapeutics
Mar 17, 2009 |
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USA300--the major epidemic strain of methicillin-resistant Staphylococcus aureus (MRSA) causing severe infections in the United States during the past decade--inherits its destructiveness directly from a forefather strain ...
Key to virulence protein entry into host cells discovered
Biology /
Aug 04, 2008 |
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Researchers from the Virginia Bioinformatics Institute (VBI) at Virginia Tech have identified the region of a large family of virulence proteins in oomycete plant pathogens that enables the proteins to enter the cells of ...
Researchers find link to severe Staph infections
Dec 23, 2008 |
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Researchers at The University of Texas School of Public Health recently described studies that support the link between the severity of community-acquired antibiotic-resistant Staphylococcus aureus (CA MRSA) infections and th ...
Structure of a virulent pathogen revealed
Biology /
Dec 04, 2008 |
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(PhysOrg.com) -- Like high-profile politicians, pathogenic bacteria dispatch advance teams to make way for their arrival. But these bacterial agents don’t just secure a safe passage, as a Secret Service detail ...
