Abstract: (12587 Views)
Introduction: Many people with amnesia would like to try herbal therapies. Ginkgo
biloba is one of the most popular herbs which is used to treat amnesia. The beneficial effects
of this plant, however, has not been scientifically assessed yet. Although, there have been
some reports on the memory enhancement effect of Ginkgo biloba, the mechanism of its
action is not yet explained well. Considering the role of glutaminergic system in learning
and memory, the current study was intended to investigate the role of NMDA receptors in
the effect of Ginkgo biloba intake on amnesia.
Methods: The study used passive avoidance method to investigate the effect of dried
extracts of Ginkgo biloba (40 milligram pills) on the memory span of male Wistar rats,
suffering from MK801-induced forgetfulness (NMDA receptor antagonist). ANOVA was
used to evaluate the results.
Result: Ginkgo biloba was able to remove MK801-induced forgetfulness (P<0/001)
indicating that the extract can affect learning and memory, using pathways other than
glutaminergic system.
Conclusion: The results might indicate that Ginkgo extract can be effective in treating
non-acute amnesia caused by inhibiting NMDA receptors.