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New research suggests that a drug already approved for the treatment of metabolic acidosis - where the body has too much acid - could be repurposed and used to treat airway disease in patients with cystic fibrosis. The drug showed enhanced ability to kill bacteria in the airways of pigs and mucus samples from human patients with cystic fibrosis.
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The mucus build-up is a result of a problem with transporting ions in and out of cells, which causes the affected tissue surfaces to become too acidic.
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In the lungs, if the airway surface liquid (ASL) becomes too acidic, it is less able to defend against bacteria and other pathogens.
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"We found that Tham aerosols increased ASL pH in vivo for at least 2 hours and enhanced bacterial killing," note the authors.