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Meat and meat-mutagen intake, doneness preference and the risk of colorectal polyps: the Tennessee Colorectal Polyp Study.
Shin A, Shrubsole MJ, Ness RM, Wu H, Sinha R, Smalley WE, Shyr Y, Zheng W
(2007) Int J Cancer 121: 136-42
MeSH Terms: Adenomatous Polyps, Adult, Aged, Colonic Diseases, Female, Humans, Male, Meat, Middle Aged, Mutagens, Rectal Diseases, Risk Factors, Societies, Medical, Tennessee, Time Factors
Show Abstract · Added March 20, 2014
Although meat intake has been fairly consistently linked to the risk of colorectal cancer, only a few studies have evaluated meat intake by doneness level and the heterocyclic amines (HCAs) and polycyclic aromatic hydrocarbons (PAHs) produced by high temperature cooking of meat in relation to colorectal adenomatous and hyperplastic polyps. We evaluated these associations in a large colonoscopy-based case-control study. Included in this study were participants with adenomatous polyp only (n = 573), hyperplastic polyp only (n = 256), or both adenomatous and hyperplastic polyps (n = 199), and 1,544 polyp-free controls. In addition to information related to demographic and other lifestyle factors, meat intake by cooking method and doneness preference were obtained through telephone interviews. Polytomous logistic regression models were used to estimate odds ratios (OR) and 95% confidence intervals for the association between exposures and colorectal polyp risks. Presence of hyperplastic polyp was found to be positively associated with high consumption of total meat (p(trend) = 0.076) or red meat (p(trend) = 0.060), with an approximate 50-60% elevated risk observed in the highest vs. the lowest intake group. High intake of 2-amino-I-methyl-6-phenylimidazo[4,5-b]pyridine (PhIP) and 2-amino-3,4,8-trimethylimidazo [4,5]quinoxaline (DiMeIQx) were associated with increased risk for hyperplastic polyp (p(trend) = 0.036 and 0.038, respectively). With a possible exception of the intake of total well-done meats (p(trend) = 0.055) or well-done red meats (p(trend) = 0.074) with the risk of large adenomas, no other positive association was found specifically for the risk of adenomas with any of the exposure variables aforementioned. This study provides additional support for a positive association of high intake of red meat with colorectal adenomas, and suggests that high intake of meats and meat carcinogens may also be associated with hyperplastic polyps.
0 Communities
2 Members
0 Resources
15 MeSH Terms
Aspirin use and potential mechanisms for colorectal cancer prevention.
Williams CS, Smalley W, DuBois RN
(1997) J Clin Invest 100: 1325-9
MeSH Terms: Adenocarcinoma, Adenomatous Polyps, Animals, Anti-Inflammatory Agents, Non-Steroidal, Aspirin, Colorectal Neoplasms, Cyclooxygenase 2, Cyclooxygenase 2 Inhibitors, Cyclooxygenase Inhibitors, Gene Expression Regulation, Neoplastic, Humans, Isoenzymes, Male, Membrane Proteins, Mice, Prostaglandin-Endoperoxide Synthases, Randomized Controlled Trials as Topic, Sulindac
Added March 5, 2014
0 Communities
1 Members
0 Resources
18 MeSH Terms