PON1 and Tinnitus: According to a study using total oxidant status (TOS), total antioxidant status (TAS), oxidative stress index (OSI), and paraoxonase (PON), which are oxidative stress markers traditionally used as indicators of oxidant/antioxidant balance, TAS and PON of patients with tinnitus were lower than those of the control group, but TOS and OSI were higher [108].