New research from Arts & Sciences suggests that many “redundant” enzymes are actually specialists that ensure maximal growth across different environments. They also seem to increase resistance to antibiotics in conditions like those in the GI tract or urinary tract — raising concerns that current antibiotic susceptibility tests are inadequate.
In studying a bacterium that causes disease in hospitalized people, researchers at the School of Medicine have figured out a key step in the transmission of antibiotic resistance from one bacterium to another. Their insight suggests a new strategy for stopping the spread of antibiotic resistance.
Petra Levin, professor of biology in Arts & Sciences, was recently awarded a $2 million grant to identify and characterize the molecular circuits that coordinate or limit the growth and reproduction of bacteria.
The Alfred P. Sloan Foundation announced Feb. 15 that Timothy A. Wencewicz, assistant professor of chemistry in Arts & Sciences at Washington University in St. Louis, has been awarded a 2018 Sloan Research Fellowship. He is among 126 outstanding U.S. and Canadian researchers selected as fellowship recipients this year.
Antibiotic-resistant bacteria most often are associated with hospitals and other health-care settings, but a new study from the School of Medicine indicates that chicken coops and sewage treatment plants also are hot spots of antibiotic resistance.
A new Washington University School of Medicine study reveals extensive antibiotic resistance in the gut bacteria of premature infants. The researchers say these findings support the push to minimize routine use of antibiotics in these patients.
As scientists look for replacements for our dwindling stock of antibiotics, the evolution of resistance is never far from their minds. Washington University in St. Louis biologist R. Fredrik Inglis explored the ability of bacteria to become resistant to a toxin called a bacteriocin by growing them for many generations in the presence of the toxin.
In children whose colds tend to progress and lead to severe wheezing and difficulty breathing — such that they are given oral corticosteroids as rescue therapy — researchers have shown that giving a common antibiotic at the first sign of symptoms can reduce the risk of the episode developing into a severe lower respiratory tract illness.
Three antibiotics that, individually, are not effective against a drug-resistant staph infection can kill the deadly pathogen when combined as a trio, according to researchers at Washington University School of Medicine in St. Louis. They have killed the bug — methicillin-resistant Staphylococcus aureus (MRSA) — in test tubes and laboratory mice, and believe the same strategy may work in people.
Infections with one of the most troublesome and least understood antibiotic-resistant “superbugs” are increasing at alarming rates, particularly in health-care settings. But by studying A. baumannii, a frequent cause of difficult-to-treat infections in hospitals, researchers have identified a naturally occurring process that restores its vulnerability to antibiotics.