Abstract Title:

Piperine Enhances the Protective Effect of Curcumin Against 3-NP Induced Neurotoxicity: Possible Neurotransmitters Modulation Mechanism.

Abstract Source:

Neurochem Res. 2015 Aug ;40(8):1758-66. Epub 2015 Jul 10. PMID: 26160706

Abstract Author(s):

Shamsher Singh, Sumit Jamwal, Puneet Kumar

Article Affiliation:

Shamsher Singh

Abstract:

3-Nitropropionic acid (3-NP) is a fungal toxin well established model used for inducing symptoms of Huntington's disease. Curcumin a natural polyphenol has been reported to possess neuroprotective activity by decreasing oxidative stress. The aim of present study was to investigate neuroprotective effect of curcumin with piperine (bioavailability enhancer) against 3-NP induced neurotoxicity in rats. Administration of 3-NP (10 mg/kg for 21 days) showed loss in body weight, declined motor function and changes in biochemical (LPO, nitrite and glutathione level), neuroinflammatory (TNF-α and IL-1β level) and neurochemical (DA, NE, 5-HT, DOPAC, 5-HIAA and HVA). Chronic treatment with curcumin (25 and 50 mg/kg) and curcumin (25 mg/kg) with piperine (2.5 mg/kg) once daily for 21 days prior to 3-NP administration. All the behavioral parameters were studied at 1st, 7th, 14th, and 21st day. On 22nd day all the animals was scarified and striatum was separated. Curcumin alone and combination (25 mg/kg) with piperine (2.5 mg/kg) showed beneficial effect against 3-NP induced motor deficit, biochemical and neurochemical abnormalities in rats. Piperine (2.5 mg/kg) with curcumin (25 mg/kg) significantly enhances its protective effect as compared with curcumin alone treated group. The results of the present study indicate that protective effect of curcumin potentiated in the presence of piperine (bioavailability enhancer) against 3-NP-induced behavioral and molecular alteration.

Study Type : Animal Study

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