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The present study was investigated influence of Phlojodicarpus sibiricus (Steph. ex. Spregel) K.-Pol. extract on memory in scopolamine-induced amnesia in rats using object recognition test. The rats were divided into four groups: the first group consist of rats received purified water; rats of two groups administrated scopolamine in dose 1 mg/kg and purified water intraperitoneally; rats of three and four groups introduced scopolamine and P. sibiricus extract in doses 50 and 100 mg/kg accordingly intraperitoneally. The object recognition test was performed 30 minutes after the administration of scopolamine and the P. sibiricus extract. The results of the studies showed that administration of the P. sibiricus extract in animals at doses of 50 and 100 mg/kg prevented the development of amnesia caused by the administration of scopolamine. The antiamnestic effect of P. sibiricus extract is due to the cholinergic effect of coumarins contained in the plant.

Antiamnestic effect of Phlojodicarpus sibiricus extract in a scopolamine-induced amnesia model