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Cystic fibrosis gene typo is a double whammy

CHAPEL HILL -- An imbalance of salt and water in patients with cystic fibrosis makes their lungs clog up with sticky mucus that is prone to infection. The cause of the offending imbalance is a well-known genetic error, one that blocks the molecular...

Tips from the journals of the American Society for Microbiology

Frog Skin May Provide Antimicrobial Peptides Effective Against Multidrug-Resistant Infections Antimicrobial peptides from the skin of frogs may protect against life-threatening, multidrug-resistant infections such as Pseudomonas aeruginosa say res...

Tips from the journals of the American Society for Microbiology

Frog Skin May Provide Antimicrobial Peptides Effective Against Multidrug-Resistant Infections Antimicrobial peptides from the skin of frogs may protect against life-threatening, multidrug-resistant infections such as Pseudomonas aeruginosa say res...

New techniques reveal workings of bacteria linked to cystic fibrosis

Researchers have identified a cell signaling system that may help the bacterium Pseudomonas aeruginosa establish itself in the lungs of cystic fibrosis patients. The researchers used a new technology to seek insights into an important and elusive enemy, and say the findings are important for biology and potentially important for therapy. The researchers identified the activation of this signaling system by the use of new quantitative proteomic technology that analyzed Pseudomonas samples from the lungs of children with cystic fibrosis. Proteomics is the method for analyzing and cataloguing a complete cellular complement of proteins, which are produced based on information encoded by genes and are the workhorses of all living cells.

Drug Fights Bacteria by Disrupting Quorum Sensing and Biofilms

Scientists have discovered a promising new drug lead that works by inhibiting the sophisticated bacterial communication system called quorum sensing. The new compound is active against Pseudomonas aeruginosa, the gram-negative infection that strikes -- and usually kills -- cystic fibrosis patients and many others whose immune systems are compromised. The bacteria, like many others that have been routinely treated by antibiotics, have developed strains that are antibiotic-resistant.

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