Bountress Bountress KE KE Wei Wei W W Sheerin Sheerin C C Relationships between GAT1 and PTSD, depression, and substance use disorder Relationships between GAT1 and PTSD, depression, and substance use disorder Brain Sci Brain Sci 2017 2017 7 7 6 6 10.3390/brainsci7010006 10.3390/brainsci7010006. This evidence concerns the gene SLC6A1 and post-traumatic stress disorder.