Effects of anthocyanins on active avoidance test of rats exposed to disruption of diurnal rhythm.

The present study was undertaken to assess the effects of the natural antioxidant anthocyanins on learning and memory of rats in experimental model of oxidative stress. Our preliminary experiments demonstrated that disruption of diurnal rhythm via exposition of rats to constant light for 14 days caused excessive generation of free radicals in their brains. It is known that free radicals impair cognitive functions.

Effects of anthocyanins on learning and memory of ovariectomized rats.

Objective: Estrogen deficit is associated with mental health disorders, emotional difficulties, memory impairment, and other cognitive failures. Recently, considerable attention has been paid to bioflavonoids and their properties as phytoestrogens to alleviate symptoms related to estrogen deficit. Anthocyanins are antioxidant flavonoids with various physiological activities.