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New technique allows for identification of potential drugs to fight resistant bacteria

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Researchers from the Miami University in Ohio have optimized a new technique that will allow scientists to evaluate how potential inhibitors work on antibiotic-resistant bacteria. This technique, called native state mass spectrometry, provides a quick way for scientists to identify the best candidates for effective clinical drugs, particularly in cases where bacteria can no longer be treated with antibiotics alone. This research will be presented at the American Society for Microbiology World Microbe Forum online conference on June 21, 2021.

Overuse of antibiotics in the last century has led to a rise in bacterial resistance, leading to many bacterial infections that are no longer treatable with current antibiotics. In the United States each year, 2.8 million people are diagnosed with a bacterial infection that is resistant to one or more antibiotics, and 35,000 people die due to the resistant infection according to the Centers for Disease Control and Prevention.

"One method of combatting antibiotic resistance is using a combination drug/inhibitor therapy," said Caitlyn Thomas, a Ph.D. candidate in chemistry, presenting author on the study. An example of this type of therapy is Augmentin, a prescription antibiotic used to treat bacterial infections of the respiratory tract, which is composed of the antibiotic amoxicillin and the inhibitor clavulanic acid. Clavulanic acid inactivates a key protein that the bacterium uses to become resistant to amoxicillin. With the bacterial protein inactivated, the antibiotic -- amoxicillin -- is left to kill the bacteria, thereby treating the infection.

sciencecodex.com/new-techni...

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