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How plague-causing bacteria disarm host defense
05-24-2007 · EurekAlert!Effector proteins are the bad guys that help bacterial pathogens do their job of infecting the host by crippling the body's immune system. In essence, they knock down the front door of resistance and disarm the cell's alarm system.
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Keywords: plague-causing, bacteria, disarm, host, defense, plague, causing
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- Bacteria control how infectious they become, study finds
04-12-2007 · EurekAlert!
The results of a new study suggest that bacteria that cause diseases like bubonic plague and serious gastric illness can turn the genes that make them infectious on or off. Knowing how disease-causing bacteria, like Yersinia pestis and E. coli, do this may one day help scientists create drugs that control the expression of these genes, thereby making the bacteria harmless. The findings appear in the April 13 issue of the journal Molecular Cell.
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- Scientists discover rare 'gene-for-gene' interaction that helps bacteria kill their host
05-03-2007 · University of Bath
Scientists from the Department of Biology & Biochemistry have discovered that a cousin of the plague bacterium uses a single gene to out-fox insect immune defences and kill its host.
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- Researchers report initial success in promising approach to prevent tooth decay
10-23-2006 · EurekAlert!
A team of researchers report they have created a new smart anti-microbial treatment that can be chemically programmed to seek out and kill a specific cavity-causing species of bacteria, leaving the good bacteria untouched.
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- Tracking a public health risk in the Irish food chain
09-03-2007 · EurekAlert!
Monitoring of pig carcasses and pig meat in slaughterhouses, butchers' premises and retail outlets will be undertaken in Ireland over the next two years in an attempt to determine how a human disease causing bacteria, Yersinia enterocolitica, enters the food chain, scientists announced today, Sept. 4, 2007, at the Society for General Microbiology's 161st Meeting at the University of Edinburgh, UK, which runs Sept. 3-6 2007.
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- Bacteria that cause urinary tract infections invade bladder cells
12-17-2007 · EurekAlert!
Scientists at Washington University School of Medicine in St. Louis have found definitive proof that some of the bacteria that plague women with urinary tract infections are entrenched inside human bladder cells. The finding confirms a controversial revision of scientists' model of how bacteria cause UTIs. Previously, most researchers assumed that the bacteria responsible for infections get into the bladder but do not invade the individual cells that line the interior of the bladder.
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- Cell wall of pneumonia bacteria can cause brain and heart damage
10-23-2006 · EurekAlert!
Investigators at St. Jude Children's Research Hospital have discovered in mouse models how cell walls from certain pneumonia-causing bacteria can cause fatal heart damage; researchers have also shown how antibiotic therapy can contribute to this damage by increasing the number of cell wall pieces shed by dying bacteria.
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- Resistance genes in our food supply
05-23-2007 · EurekAlert!
Could the food we eat be contributing to the continuing rise of antibiotic-resistant infections? Harmless and even beneficial bacteria that exist in our food supply may also be carrying genes that code for antibiotic resistance. Once in our bodies, could they transmit the resistance genes to disease-causing bacteria?
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- Rutgers scientists preserve and protect foods naturally
08-20-2007 · EurekAlert!
Chemists and food scientists at Rutgers joined forces to develop natural approaches to the prevention of food contamination and spoilage. They employed natural antimicrobial agents derived from sources such as cloves, oregano, thyme and paprika to create novel biodegradable polymers or plastics to potentially block the formation of bacterial biofilms on food surfaces and packaging. Biofilms may harbor multiple versions of infectious, disease-causing bacteria, such as Salmonella and E. coli.
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- Protecting our beaches
09-03-2007 · EurekAlert!
Bathing beaches and lakes could fail the new cleanliness standards set by the 2006 Bathing Waters Directive, but a new risk assessment tool developed by rural studies and water management experts may help reduce the transfer of disease causing bacteria from the farmed environment, according to scientists speaking today, Sept. 4, 2007, at the Society for General Microbiology's 161st Meeting at the University of Edinburgh, UK, which runs Sept. 3-6, 2007.
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- Will the plague pathogen become resistant to antibiotics?
03-20-2007 · EurekAlert!
A small piece of DNA that helps bacteria commonly found in US meat and poultry resist several antibiotics has also been found in the plague bacillus Yersinia pestis, gene sequence researchers report.
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