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Pharmacological evidences for antiamnesic potentials of Phyllanthus amarus in mice

H Joshi
M Parle


Phyllanhus amarus (PAs) is commonly known as Bhumi amla and is
traditionally used since centuries in ayurveda. The present study was
undertaken to investigate the effects of PAs on cognitive functions and
brain cholinesterase activity in mice. PAs (50, 100 and 200 mg/kg)
produced a dose- dependent improvement in memory scores of young and
older mice. PAs also reversed successfully the amnesia induced by
scopolamine (0.4 mg/kg, i.p.) and diazepam (1 mg/kg, i.p.). Interestingly,
brain cholinesterase activity was also reduced. The underlying
mechanism of action for the observed nootropic effect may be attributed
to pro-cholinergic activity exhibited by PAs in the present study.
Therefore, it would be worthwhile to explore the therapeutic potential of
PAs in the management of patients with cognitive disorders.
(Afr. J. Biomed. Res. 10: 165 - 173

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