Optimization of intracerebroventricular streptozotocin dose for the induction of neuroinflammation and memory impairments in rats

AbstractIntracerebroventricular (ICV) injection of streptozotocin (STZ) is a well established procedure to induce neuroinflammation leading to dementia in experimental animals. However, the optimal dose of STZ has not been determined. In the present study, rats were ICV injected with 1.5, 3 and 6 mg of STZ per kg of body weight. After 21 days, neuroinflammatory markers i.e. TNF- α, IL-1β, ROS and nitrite were quantified in the hippocampus. Memory function was assessed by the radial arm maze test after 9, 12, 15, 18, 21 days following STZ injection. STZ treatment significantly increased neuroinflammatory markers and decreased memory functions in a dose dependent manner sho wing optimum effects at the dose of 3 mg/kg.

Source: Metabolic Brain Disease - July 20, 2020 Category: Neurology Source Type: research