Mock gut communities (IMAGE) Northwestern University Caption To test whether or not this breakdown effect could protect the entire microbiome, the Northwestern team developed simplified microbial communities, which included various types of bacteria typically found in the human gut. The team then exposed these mock gut communities" to doxorubicin and found increased survival among sensitive strains. Credit Northwestern University Usage Restrictions None License Licensed content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.