News tagged with antibiotic resistance
Related topics: bacteria , antibiotics , bacterium , e coli , infectious diseases
Antibiotic resistance is the ability of a microorganism to withstand the effects of antibiotics. It is a specific type of drug resistance. Antibiotic resistance evolves via natural selection acting upon random mutation, but it can also be engineered by applying an evolutionary stress on a population. Once such a gene is generated, bacteria can then transfer the genetic information in a horizontal fashion (between individuals) by plasmid exchange. If a bacterium carries several resistance genes, it is called multiresistant or, informally, a superbug. The term antimicrobial resistance is sometimes used to explicitly encompass organisms other than bacteria.
Antibiotic resistance can also be introduced artificially into a microorganism through transformation protocols. This can aid in implanting artificial genes into the microorganism. If the resistance gene is linked with the gene to be implanted, the antibiotic can be used to kill off organisms that lack the new gene.
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A new study led by researchers from Harvard School of Public Health (HSPH) and the Wellcome Trust Sanger Institute in the UK has, for the first time, used genome sequencing technology to track the changes in a bacterial population ...
Genetics May 05, 2013 | not rated yet | 1 |
GlaxoSmithKline PLC says it's starting an unusual collaboration with the U.S. government to develop several antibiotics for both bioterrorism threats and bacterial infections resistant to current medicines.
Medications May 22, 2013 | not rated yet | 0
A protein complex found in human breast milk can help reverse the antibiotic resistance of bacterial species that cause dangerous pneumonia and staph infections, according to new University at Buffalo research.
Medical research May 01, 2013 | 5 / 5 (3) | 0
Giving prescribers access to education and advice or imposing restrictions on use can curb overuse or inappropriate use of antibiotics in hospitals, according to a new Cochrane systematic review. This is important because ...
Medications Apr 29, 2013 | not rated yet | 0
Antibiotics for acute rhinosinusitis (ARS) are prescribed frequently— especially for younger adult patients and in primary care settings—despite recent consensus guidelines that discourage antibiotic use in mild cases, ...
Surgery May 09, 2013 | not rated yet | 0