Background and Objective: The brain is vulnerable to the oxidative stress and organophosphates (OP) interaction with the body antioxidant system can induce neuropathy and memory disturbance. Evaluation of minimum toxic dose of diazinone (DZ)-induced oxidative stress and its effects on memory acquisition in male rats. Materials and Methods: DZ (25 mg/kg, oral) was administered for 2, 4 and 6 we...