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Health

New antibiotic can be effective against superbacteria

01/08/2015

This article was translated by an automatic translation system, and was therefore not reviewed by people.

 

 



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Methicillin-resistant Staphylococcus aureus: a superbug is more present in children who have taken many antibiotics (Thinkstock / SEE)

American scientists have developed what appears to be an antibiotic effective against a number of diseases caused by bacteria, even for those who developed resistance to currently available drugs, known as super bacteria. According to the researchers, it is not possible to determine if the bacteria also become resistant to this antibiotic in the future. However, if it occurs, is likely to take decades before the first cases appear.

The research was coordinated by Kim Lewis, Antimicrobial Discovery Center researcher in the Department of Biology at Northeastern University in the United States. Lewis and his team analyzed nearly 10 000 compounds isolated from a culture of bacteria taken from a lawn field and the potential to make an antibiotic. They found that one of these substances, called teixobactina, has a "great activity" against superbugs such as tuberculous Mycobacterium Methicillin Resistant and Staphylococcus aureus (MRSA).

According to the researchers, the teixobactina destroys the wall of the bacteria cells. Based on tests on the substance in the laboratory, the study authors estimate that could take 30 years for the bacteria to develop resistance to the drug. The full study was published Wednesday in the journal Nature ?.

The antibiotic has yet to be tested in humans so that researchers are sure their effectiveness and consequently approve the clinical use of the drug.

The superbugs, which are micro-organisms that fail to respond to all or most available antibiotics, have become a major public health problem. A recent British study suggests that, if nothing is done about the problem, deaths caused by superbugs may rise from the current 700,000 to 10 million a year worldwide in 2050. This number is higher than the total deaths caused by cancer currently, that is 8.2 million per year.



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