Document Detail

Inhibitory effect of curcumin and its natural analogues on genotoxicity of heterocyclic amines from cooked food.
MedLine Citation:
PMID:  12974398     Owner:  NLM     Status:  MEDLINE    
Curcumin (C) and its natural analogues demethoxycurcumin (dmC) and bisdemethoxycurcumin (bdmC), known for their potent anti-inflammatory, antioxidant, antimutagenic and anticarcinogenic effects, were tested for their possible inhibitory effects against seven cooked food mutagens (heterocyclic amines): 2-amino-3-methylimidazo[4,5-f]quinoline (IQ), 2-amino-3,4-dimethylimidazo[4,5-f]quinoline (MeIQ), 2-amino-3,8-dimethylimidazo[4,5-f]quinoxaline (MeIQx), 3-amino-1,4-dimethyl-5H-pyrido[4,3-b]indole (Trp-P-1), 3-amino-1-methyl-5H-pyrido[4,3-b]indole (Trp-P-2), 2-amino-1-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) and 2-amino-6-methyldipyrido[1,2-a:3',2'-d]imidazole (Glu-P-1), in both TA98 and TA100 strains of Salmonella typhimurium using Ames Salmonella/reversion assay in the presence of Aroclor induced rat liver S9 homogenate. In the present investigations, curcumin as well as its two natural analogues i.e., dmC and bdmC were found to be highly effective in suppressing genotoxicity of all the tested cooked food mutagens in a dose-dependent manner, in both the frame shift (TA98) as well as base pair mutation sensitive (TA100) strains of S. typhimurium. However, bdmC appeared to be a relatively less active antimutagen compared to C and dmC. More than 80% inhibition of mutagenicity was observed at 200 microg/plate in case of C and dmC in both TA98 and TA100 against all tested cooked food mutagens. Where as, bdmC showed 39-79% inhibition in TA100 and 60-80% inhibition in TA98, at a dose of 200 microg/plate. These findings warrant further biochemical, enzymatic and in vivo investigations in animal models as well as in humans to establish the chemoprotective effect of these agents against mutagenic heterocyclic amines found in cooked food.
Shishu; A K Singla; I P Kaur
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Indian journal of experimental biology     Volume:  40     ISSN:  0019-5189     ISO Abbreviation:  Indian J. Exp. Biol.     Publication Date:  2002 Dec 
Date Detail:
Created Date:  2003-09-16     Completed Date:  2003-10-23     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0233411     Medline TA:  Indian J Exp Biol     Country:  India    
Other Details:
Languages:  eng     Pagination:  1365-72     Citation Subset:  IM    
University Institute of Pharmaceutical Sciences, Panjab University, Chandigarh, 160014, India.
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MeSH Terms
Amines / antagonists & inhibitors,  toxicity*
Antimutagenic Agents / pharmacology*
Curcumin / pharmacology*
Mutagenicity Tests
Salmonella typhimurium / genetics
Reg. No./Substance:
0/Amines; 0/Antimutagenic Agents; 458-37-7/Curcumin

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