Fig. 5
From: Gut microbiota from persons with attention-deficit/hyperactivity disorder affects the brain in mice
Study design. Germ-free mice were colonized with human ADHD or human control microbiota on day 1 of the experiment. Booster inoculations to recolonize the mice were given on day 14 and 22. Fecal pellets were collected on day 5, 14 (before recolonization), 19, and 26. The open field test (OFT) was performed on day 12, the marble burying test (MBT) on day 13, and the Novel object recognition test (NOR) on day 20 (0.5 h interval) and day 21 (1 h interval). The mice underwent MRI on day 28 or 29, after which all brains were processed for immunohistochemical staining