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Posts tagged: antibiotic

Patterns Of Antibiotic-resistant Bacteria Found In Some Galapagos Reptiles

January 24, 2012
Land and marine iguanas and giant tortoises living close to human settlements or tourist sites in the Galápagos islands are more likely to harbor antibiotic-resistant bacteria than those living in more remote or protected sites on the islands, researchers report in a new study.Feces collected at several different sites from ...

Patterns of antibiotic-resistant bacteria found in Galapagos reptiles

January 23, 2012
Land and marine iguanas and giant tortoises living close to human settlements or tourist sites in the Galapagos islands were more likely to harbor antibiotic-resistant bacteria than those living in more remote or protected sites on the islands, researchers report. Many of the reptiles harbor E. coli bacteria that are ...

Polar growth at the bacterial scale reveals potential new targets for antibiotic therapy

January 18, 2012
Microbiologists have identified a new bacterial growth process -- one that occurs at a single end or pole of the cell instead of uniform, dispersed growth along the long axis of the cell -- that could have implications in the development of new antibacterial strategies.

Drugs used to overcome cancer may also combat antibiotic resistance: McMaster researchers

January 16, 2012
Drugs used to overcome cancer may also combat antibiotic resistance: McMaster researchers – The pharmaceutical sector has made a big investment in targeting kinases proteins, so there are a lot of compounds and drugs out there that, although they were designed to overcome cancer, they can in fact be looked ...

Sewage treatment plants may contribute to antibiotic resistance problem

December 7, 2011
Water discharged into lakes and rivers from municipal sewage treatment plants may contain significant concentrations of the genes that make bacteria antibiotic-resistant. That's the conclusion of a new study on a sewage treatment plant on Lake Superior in the Duluth, Minn., harbor.

Stinky frogs are a treasure trove of antibiotic substances

November 30, 2011
Some of the nastiest smelling creatures on Earth have skin that produces the greatest known variety of antibacterial substances that hold promise for becoming new weapons in the battle against antibiotic-resistant infections, scientists are reporting. Their research is on amphibians so smelly (like rotten fish, for instance) that scientists term ...

Bacteria may readily swap beneficial genes: Microbes trade genetic coding for antibiotic resistance and more

November 1, 2011
Researchers say they've found evidence of a massive network of recent gene exchange connecting bacteria from around the world: 10,000 unique genes flowing via horizontal gene transfer among 2,235 bacterial genomes. Much as people can exchange information instantaneously in the digital age, bacteria associated with humans and their livestock appear ...

Fighting fire with fire: ‘Vampire’ bacteria has potential as living antibiotic

November 1, 2011
A vampire-like bacteria that leeches onto specific other bacteria -- including certain human pathogens -- has the potential to serve as a living antibiotic for a range of infectious diseases, a new study indicates.

Enzymes act like a switch, turning antibiotic resistance on and off in enterococci

November 1, 2011
Antibiotic-resistant enterococci are a serious problem for patients in the hospital, but little is known about how these bacteria are able to escape antibiotics. New discoveries about the ways in which enterococci turn their resistance to cephalosporin antibiotics on and off are described in a new study.

Probiotics effective in combating antibiotic-associated diarrhea, studies find; ‘Good bugs’ look promising as anti-inflammatory agents

October 31, 2011
In four different studies, researchers explored the effectiveness of probiotics for antibiotic-associated diarrhea; as an anti-inflammatory agent for patients with ulcerative colitis, psoriasis and chronic fatigue syndrome; and for people with abdominal discomfort and bloating who have not been diagnosed with a functional bowel disorder, such as irritable bowel syndrome.

Bacteriophages mobilize the antibiotic resistance of bacteria in the environment

October 28, 2011
The role of bacteriophages -- viruses that infect bacteria -- could be crucial in the transfer of antibiotic resistance genes between bacteria, and this process could favor the emergence of resistant bacterial strains in the natural environment.

Newly discovered reservoir of antibiotic resistance genes

October 20, 2011
Waters polluted by the ordure of pigs, poultry, or cattle represent a reservoir of antibiotic resistance genes, both known and potentially novel. These resistance genes can be spread among different bacterial species by bacteriophage, bacteria-infecting viruses, according to new research.