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Toxicol Mech Methods. 2012 Jan;22(1):74-80. doi: 10.3109/15376516.2011.603392. Epub 2011 Aug 23.

Synergistic effects of piperine and curcumin in modulating benzo(a)pyrene induced redox imbalance in mice lungs.

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1
Department of Zoology, Panjab University, Chandigarh, India.

Abstract

The objective of the present study was to evaluate the effects of curcumin alone and with adjuvant piperine against benzo(a)pyrene (BaP) induced oxidative stress in lungs of male Swiss albino mice. Mice were pretreated either with curcumin (100 mg/kg body weight), or piperine (20 mg/kg body weight), and in combination of both for one week, followed by single dose of benzo(a)pyrene (125 mg/kg body weight) treatment. Treatment with benzo(a)pyrene resulted in increased levels of lipid peroxides (LPO), protein carbonyl content (PCC) and with consequent decrease in the levels of tissue antioxidants like superoxide dismutase (SOD), catalase (CAT), glutathione reductase (GR), glutathione peroxidase (GPx) and reduced glutathione (GSH), which however, were increased significantly following curcumin treatment, but the increase was more pronounced when piperine was used as an adjuvant. BaP treatment alone did not alter significantly the GST activity. Pretreatment with curcumin increased the GST activity in BaP treated group, which was enhanced further upon synergistic treatment with piperine and curcumin. Therefore, combined administration of curcumin and piperine shall prove to be more effective in attenuating BaP induced toxicity.

PMID:
21859361
DOI:
10.3109/15376516.2011.603392
[Indexed for MEDLINE]
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