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No evidence of gene-calcium interactions from genome-wide analysis of colorectal cancer risk.


ABSTRACT: BACKGROUND:Calcium intake may reduce risk of colorectal cancer, but the mechanisms remain unclear. Studies of interaction between calcium intake and SNPs in calcium-related pathways have yielded inconsistent results. METHODS:To identify gene-calcium interactions, we tested interactions between approximately 2.7 million SNPs across the genome with self-reported calcium intake (from dietary or supplemental sources) in 9,006 colorectal cancer cases and 9,503 controls of European ancestry. To test for multiplicative interactions, we used multivariable logistic regression and defined statistical significance using the conventional genome-wide ? = 5E-08. RESULTS:After accounting for multiple comparisons, there were no statistically significant SNP interactions with total, dietary, or supplemental calcium intake. CONCLUSIONS:We found no evidence of SNP interactions with calcium intake for colorectal cancer risk in a large population of 18,509 individuals. IMPACT:These results suggest that in genome-wide analysis common genetic variants do not strongly modify the association between calcium intake and colorectal cancer in European populations.

SUBMITTER: Du M 

PROVIDER: S-EPMC4257872 | biostudies-literature | 2014 Dec

REPOSITORIES: biostudies-literature

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No evidence of gene-calcium interactions from genome-wide analysis of colorectal cancer risk.

Du Mengmeng M   Zhang Xuehong X   Hoffmeister Michael M   Schoen Robert E RE   Baron John A JA   Berndt Sonja I SI   Brenner Hermann H   Carlson Christopher S CS   Casey Graham G   Chan Andrew T AT   Curtis Keith R KR   Duggan David D   Gauderman W James WJ   Giovannucci Edward L EL   Gong Jian J   Harrison Tabitha A TA   Hayes Richard B RB   Henderson Brian E BE   Hopper John L JL   Hsu Li L   Hudson Thomas J TJ   Hutter Carolyn M CM   Jenkins Mark A MA   Jiao Shuo S   Kocarnik Jonathan M JM   Kolonel Laurence N LN   Le Marchand Loic L   Lin Yi Y   Newcomb Polly A PA   Rudolph Anja A   Seminara Daniela D   Thornquist Mark D MD   Ulrich Cornelia M CM   White Emily E   Wu Kana K   Zanke Brent W BW   Campbell Peter T PT   Slattery Martha L ML   Peters Ulrike U   Chang-Claude Jenny J   Potter John D JD  

Cancer epidemiology, biomarkers & prevention : a publication of the American Association for Cancer Research, cosponsored by the American Society of Preventive Oncology 20140905 12


<h4>Background</h4>Calcium intake may reduce risk of colorectal cancer, but the mechanisms remain unclear. Studies of interaction between calcium intake and SNPs in calcium-related pathways have yielded inconsistent results.<h4>Methods</h4>To identify gene-calcium interactions, we tested interactions between approximately 2.7 million SNPs across the genome with self-reported calcium intake (from dietary or supplemental sources) in 9,006 colorectal cancer cases and 9,503 controls of European ance  ...[more]

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