PMID- 24908112 OWN - NLM STAT- MEDLINE DCOM- 20151026 LR - 20211021 IS - 1573-4919 (Electronic) IS - 0300-8177 (Linking) VI - 394 IP - 1-2 DP - 2014 Sep TI - Protective effect of p-methoxycinnamic acid, an active phenolic acid against 1,2-dimethylhydrazine-induced colon carcinogenesis: modulating biotransforming bacterial enzymes and xenobiotic metabolizing enzymes. PG - 187-98 LID - 10.1007/s11010-014-2094-3 [doi] AB - Objective of the study is to evaluate the modifying potential of p-methoxycinnamic acid (p-MCA), an active rice bran phenolic acid on biotransforming bacterial enzymes and xenobiotic metabolizing enzymes in 1,2-dimethylhydrazine-induced rat colon carcinogenesis. 48 male albino wistar rats were divided into six groups. Group1 (control) received modified pellet diet and 0.1 % carboxymethylcellulose; group2 received modified pellet diet along with p-MCA (80 mg/kg b.wt. p.o.) everyday for 16 weeks; groups 3-6 received 1,2-dimethylhydrazine (DMH) (20 mg/kg b.wt.) subcutaneous injection once a week for the first 4 weeks, while groups 4-6 received p-MCA at three different doses of 20, 40 and 80 mg/kg b.wt. p.o. everyday for 16 weeks. A significant increase in carcinogen-activating enzymes (cytochrome P450, cytochrome b5, cytochrome P4502E1, NADH-cytochrome-b5-reductase and NADPH-cytochrome-P450 reductase) with concomitant decrease in phaseII enzymes, DT-Diaphorase, glutathione S-transferase, UDP-glucuronyl-transferase and gamma glutamyltransferase were observed in group3 compared to control. DMH treatment significantly increased the activities of feacal and colonic bacterial enzymes (beta-glucosidase, beta-galactosidase, beta-glucuronidase, nitroreductase, sulphatase and mucinase). p-MCA supplementation (40 mg/kg b.wt) to carcinogen exposed rats inhibited these enzymes, which were near those of control rats. The formation of dysplastic aberrant crypt foci in the colon and the histopathological observations of the liver also supports our biochemical findings. p-MCA (40 mg/kg b.wt.) offers remarkable modulating efficacy of biotransforming bacterial and xenobiotic metabolizing enzymes in colon carcinogenesis. FAU - Gunasekaran, Sivagami AU - Gunasekaran S AD - Department of Biochemistry and Biotechnology, Faculty of Science, Annamalai University, Annamalainagar, 608 002, Tamilnadu, India. FAU - Venkatachalam, Karthikkumar AU - Venkatachalam K FAU - Jeyavel, Kabalimoorthy AU - Jeyavel K FAU - Namasivayam, Nalini AU - Namasivayam N LA - eng PT - Journal Article PT - Research Support, Non-U.S. Gov't DEP - 20140608 PL - Netherlands TA - Mol Cell Biochem JT - Molecular and cellular biochemistry JID - 0364456 RN - 0 (Anticarcinogenic Agents) RN - 0 (Cinnamates) RN - 6G4ML8401A (4-methoxycinnamic acid) RN - IX068S9745 (1,2-Dimethylhydrazine) SB - IM EIN - Mol Cell Biochem. 2021 May;476(5):2251-2252. PMID: 33779859 MH - *1,2-Dimethylhydrazine MH - Animals MH - Anticarcinogenic Agents/*pharmacology MH - Bacteria/*drug effects/enzymology MH - Biotransformation MH - Cinnamates/*pharmacology MH - Colon/*drug effects/enzymology/microbiology/pathology MH - Colonic Neoplasms/*chemically induced/enzymology/microbiology/pathology/*prevention & control MH - Cytoprotection MH - Disease Models, Animal MH - Dose-Response Relationship, Drug MH - Feces/microbiology MH - Liver/*drug effects/enzymology MH - Male MH - Rats, Wistar EDAT- 2014/06/09 06:00 MHDA- 2015/10/27 06:00 CRDT- 2014/06/09 06:00 PHST- 2013/12/23 00:00 [received] PHST- 2014/05/15 00:00 [accepted] PHST- 2014/06/09 06:00 [entrez] PHST- 2014/06/09 06:00 [pubmed] PHST- 2015/10/27 06:00 [medline] AID - 10.1007/s11010-014-2094-3 [doi] PST - ppublish SO - Mol Cell Biochem. 2014 Sep;394(1-2):187-98. doi: 10.1007/s11010-014-2094-3. Epub 2014 Jun 8.