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Scientific Breakthrough: New class of antibiotics discovered
 
 
 
Scientific Breakthrough: New class of antibiotics discovered

 


ISLAMABAD- A new class of antibiotics has been discovered to fight deadly bacteria such as methicillin-resistant Staphylococcus aureus and other drug-resistant bacteria that threaten public health.


The new class, called oxadiazoles, was discovered by University of Notre Dame researchers led by Mayland Chang and Shahriar Mobashery in silico (by computer) screening and has shown promise in the treatment of MRSA in mouse models of infection.


Researchers who screened 1.2 million compounds found that the oxadiazole inhibits a penicillin-binding protein, PBP2a, and the biosynthesis of the cell wall that enables MRSA to resist other drugs.


The oxadiazoles are also effective when taken orally. This is an important feature as there is only one marketed antibiotic for MRSA that can be taken orally, researchers said.


MRSA has become a global public-health problem since the 1960s because of its resistance to antibiotics. In the US alone, 278,000 people are hospitalized and 19,000 die each year from infections caused by MRSA, said researchers. Only three drugs currently are effective treatments, and resistance to each of those drugs already exists. The researchers have been seeking a solution to MRSA for years.


"Professor Mobashery has been working on the mechanisms of resistance in MRSA for a very long time," Chang said. "As we understand what the mechanisms are, we can devise strategies to develop compounds against MRSA.” The research is published in the Journal of the American Chemical Society.

 
 
 
 
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