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Purpose: Coriandrum sativum Linn. ( Umbelliferae , C. sativum ) is cultivated throughout the world for its use as spice and as a folk medicine. This study deals with the anti-stress and anti-amnestic properties of C. sativum extract in rats. Methods: Urinary levels of vanillylmandelic acid (VMA) and ascorbic acid were used to evaluate antistress activity in rats, while conditioned avoidance response test in normal and scopolamine-induced amnesic rats was used to evaluate anti-amnesic effects. C. sativum extract was also evaluated for its antioxidant activities by inhibition of lipid peroxidation in brain and liver homogenates of the rats. Results: Daily administration of C. sativum extract (100, 200 and 300 mg/kg body weight) 1 h prior to induction of stress significantly decreased the stress-induced urinary levels of VMA from 382.79 ± 10.70 to 350.66 ± 15.15, 291.21 ± 16.53 and 248.86 ± 13.56 μg/kg/24 h and increased the ascorbic acid excretion levels from 66.73 ± 9.25 to 69.99 ± 7.37, 105.28 ± 13.74 and 135.32 ± 12.54 μg/kg/24 h at 100, 200 and 300 mg/kg, respectively, in a dose-dependent fashion without affecting the normal levels in control groups. The amnesic deficits (acquisition, retention and recovery) induced by scopolamine (1mg/kg, i.p.) in rats was reversed by C. sativum dose dependently. The extract also inhibited lipid peroxidation in both rat liver and brain to a greater extent than the standard antioxidant, ascorbic acid. Conclusion: C. sativum may be useful remedy in the management of stress and stress related disorders on account of its multiple actions such as anti-stress, anti-amnestic and antioxidant effects. Keywords: C. sativum , Stress, Lipid peroxidation, Vanillylmandelic acid, Memory.

Anti-Stress and Anti-Amnesic Effects of Coriandrum sativum Linn (Umbelliferae) Extract – an Experimental Study in Rats