Gluco-obtusifolin and Its Aglycon, Obtusifolin, Attenuate Scopolamine-Induced Memory Impairment

Title
Gluco-obtusifolin and Its Aglycon, Obtusifolin, Attenuate Scopolamine-Induced Memory Impairment
Authors
김동현현숙경윤병훈서지형이경태정재훈정서윤진창배최재수류종훈
Keywords
gluco-obtusifolin; obtusifolin; memory; acetylcholinesterase
Issue Date
2009-10
Publisher
Journal of pharmacological sciences
Citation
VOL 111, NO 2, 110-116
Abstract
In the present study, we assessed the effects of gluco-obtusifolin, isolated from the seeds of Cassia obtusifolia L., and its aglycone, obtusifolin, on the learning and memory impairments induced by scopolamine using the passive avoidance and the Morris water maze tasks in mice. Gluco-obtusifolin (1, 2, and 4 mg/kg, p.o.) and obtusifolin (0.25, 0.5, 1, and 2 mg/kg, p.o.) significantly reversed scopolamine-induced cognitive impairments in the passive avoidance test (P<0.05). Moreover, gluco-obtusifolin (2 mg/kg, p.o.) and obtusifolin (0.5 mg/kg, p.o.) improved escape latencies, swimming times in the target quadrant, and crossing numbers in the zone where the platform previously existed in the Morris water maze test. In the acetylcholinesterase assay, gluco-obtusifolin and obtusifolin were found to inhibit acetylcholinesterase activity in vitro (IC50 = 37.2 and 18.5 μM, respectively) and ex vivo. These results suggest that gluco-obtusifolin and its aglycone may be useful for the treatment of cognitive impairment, and that its beneficial effects are mediated, in part, by the enhancement of cholinergic signaling.
URI
http://pubs.kist.re.kr/handle/201004/36370
ISSN
1347-8613
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KIST Publication > Article
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