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Abstract Title:

Protective effect of curcumin against seizures and cognitive impairment in a pentylenetetrazole-kindled epileptic rat model.

Abstract Source:

Life Sci. 2010 Sep 16. Epub 2010 Sep 16. PMID: 20840851

Abstract Author(s):

Jogender Mehla, K H Reeta, Pooja Gupta, Yogendra Kumar Gupta

Abstract:

AIM: Epilepsy as well as chronic use of most antiepileptic drugs predisposes to cognitive impairment. Curcumin has been reported to possess antioxidant, anticonvulsant as well as neuroprotective potential. Hence, this study was conducted to evaluate the effect of curcumin against seizures, cognitive impairment and oxidative stress in pentylenetetrazole-induced kindling in rats. MAIN METHODS: The effect of pretreatment with curcumin (100, 200 and 300mg/kg, orally) on pentylenetetrazole (PTZ)-induced kindling, kindling-induced cognitive impairment and oxidative stress was evaluated. Male Wistar rats were injected PTZ (30mg/kg, i.p.) once every alternate day (48±1h) until the development of kindling. Cognitive impairment was assessed using elevated plus maze and passive avoidance test while the oxidative stress parameters (malondialdehyde and glutathione) were estimated in the whole brain at the end of experiments. KEY FINDINGS: PTZ, 30mg/kg, induced kindling in rats after 31.0±1.4days. Curcumin showed dose-dependent anti-seizure effect. Curcumin (300mg/kg) significantly increased the latency to myoclonic jerks, clonic seizures as well as generalized tonic-clonic seizures, improved the seizure score and decreased the number of myoclonic jerks. PTZkindling induced a significant oxidative stress and cognitive impairment which was reversed by pretreatment with curcumin in a dose-dependent manner. SIGNIFICANCE: The results indicate that pretreatment with curcumin ameliorates seizures, oxidative stress and cognitive impairment in PTZ induced kindling in rats. These results thus suggest the potential of curcumin as an adjuvant in epilepsy both to prevent seizures as well as to protect against seizure induced memory impairment.

Study Type : Animal Study

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Sayer Ji
Founder of GreenMedInfo.com

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