Nicholas Jannetty July 23, 2017 37 - Chemical transformation of xenobiotics by the human gut microbiota Nicholas Jannetty July 23, 2017 37. Koppel, Nitzan; Maini Rekdal, Vayu; Balskus, Emily P. Chemical transformation of xenobiotics by the human gut microbiota. Science 2017, 356 (6344), eaag2770. DOI: 10.1126/science.aag2770