CAT and Alzheimer disease: A research was carried out in rats to determine effect of the aqueous extract of C. asiatica on intracerebrovascular streptozocin-induced memory associated with sporadic type of AD by applying the extract at doses of 100, 200, and 300 mg/kg (b.w.)and measuring some oxidative stress parameters such as glutathione, superoxide dismutase (SOD), and catalase (CAT) [63].