Nayak S, Sashidhar RB. Metabolic intervention of aflatoxin B1 toxicity by curcumin.
JOURNAL OF ETHNOPHARMACOLOGY 2010;
127:641-644. [PMID:
20015472 DOI:
10.1016/j.jep.2009.12.010]
[Citation(s) in RCA: 24] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/09/2009] [Revised: 10/29/2009] [Accepted: 12/05/2009] [Indexed: 05/28/2023]
Abstract
ETHNO PHARMACOLOGICAL RELEVANCE
Curcumin, bioactive principle of turmeric (Curcuma longa Linn) is an important constituent of Indian traditional medicine. Turmeric has been known to possess several therapeutic properties.
AIM OF THE STUDY
The modulatory effect of dietary curcumin (0.05%, w/w) on drug metabolizing and general marker enzymes of liver and formation of AFB(1)-adducts (DNA and protein) due to dietary AFB(1) exposure for a period of 6 weeks in a rodent model, have been evaluated.
MATERIALS AND METHODS
Drug metabolizing enzymes CYP1A1, GSHT, UGT1A and general marker enzymes (LDH, ALT, AST, ALP and gamma-GT) of liver were estimated by standardized methods. Aflatoxin adducts (DNA and protein) were quantitated by indirect competitive ELISA.
RESULTS
Dietary curcumin enhanced GSHT (p<0.001) and UGT1A1 (p<0.05) activity and significantly reduced the activity of CYP1A1 (p<0.001), in rats exposed to aflatoxin B(1). Supplementation of curcumin in the diet normalized the altered activities of LDH and ALT. At molecular level, curcumin significantly reduced AFB(1)-N(7)-guanine adduct (p<0.001) excretion in the urine, DNA adduct (p<0.05) in the liver and albumin adduct (p<0.001) in the serum.
CONCLUSION
The experimental results substantiates that curcumin intervention ameliorates the AFB(1) induced toxicity.
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