TBXT and Cognitive impairment: For a more in-depth understanding of oxidative stress in relation to SZ and related cognitive impairment, future studies could examine a larger cohort to systemically profile all of the primary antioxidant enzymes that act in concert, including CuZnSOD, T-NOS, POD, and T-AOC, as well as antioxidant non-enzymatic molecules and other ROS, such as superoxide, nitric oxide, hydrogen peroxide, and free radicals.