Search Results - "LEVINE, A. Joan"
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Environmental epigenetics: prospects for studying epigenetic mediation of exposure–response relationships
Published in Human genetics (01-10-2012)“…Changes in epigenetic marks such as DNA methylation and histone acetylation are associated with a broad range of disease traits, including cancer, asthma,…”
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Risks of Primary Extracolonic Cancers Following Colorectal Cancer in Lynch Syndrome
Published in JNCI : Journal of the National Cancer Institute (19-09-2012)“…Lynch syndrome is a highly penetrant cancer predisposition syndrome caused by germline mutations in DNA mismatch repair (MMR) genes. We estimated the risks of…”
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3
Genome‐wide association study of circulating folate one‐carbon metabolites
Published in Genetic epidemiology (01-12-2019)“…Experimental, observational, and clinical trials support a critical role of folate one‐carbon metabolism (FOCM) in colorectal cancer (CRC) development. In this…”
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Rare Variants in the DNA Repair Pathway and the Risk of Colorectal Cancer
Published in Cancer epidemiology, biomarkers & prevention (01-05-2021)“…Inherited susceptibility is an important contributor to colorectal cancer risk, and rare variants in key genes or pathways could account in part for the…”
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Molecular Characterization of MSI-H Colorectal Cancer by MLHI Promoter Methylation, Immunohistochemistry, and Mismatch Repair Germline Mutation Screening
Published in Cancer epidemiology, biomarkers & prevention (01-11-2008)“…Microsatellite instability (MSI) occurs in 10% to 20% of colorectal cancers (CRC) and has been attributed to both MLH1 promoter hypermethylation and germline…”
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Association between folate levels and CpG Island hypermethylation in normal colorectal mucosa
Published in Cancer prevention research (Philadelphia, Pa.) (01-12-2010)“…Gene-specific promoter methylation of several genes occurs in aging normal tissues and may predispose to tumorigenesis. In the present study, we investigate…”
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Global DNA Hypomethylation (LINE-1) in the Normal Colon and Lifestyle Characteristics and Dietary and Genetic Factors
Published in Cancer epidemiology, biomarkers & prevention (01-04-2009)“…Background: Global loss of methylated cytosines in DNA, thought to predispose to chromosomal instability and aneuploidy, has been associated with an increased…”
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A systematic review of studies of DNA methylation in the context of a weight loss intervention
Published in Epigenomics (01-05-2017)“…Obesity results from the interaction of genetic and environmental factors, which may involve epigenetic mechanisms such as DNA methylation (DNAm). We have…”
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Clinicopathologic Risk Factor Distributions for MLH1 Promoter Region Methylation in CIMP-Positive Tumors
Published in Cancer epidemiology, biomarkers & prevention (01-01-2016)“…The CpG island methylator phenotype (CIMP) is a major molecular pathway in colorectal cancer. Approximately 25% to 60% of CIMP tumors are microsatellite…”
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Genetic variation in the base excision repair pathway, environmental risk factors, and colorectal adenoma risk
Published in PloS one (12-08-2013)“…Cigarette smoking, high alcohol intake, and low dietary folate levels are risk factors for colorectal adenomas. Oxidative damage caused by these three factors…”
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Genetic Variability in the MTHFR Gene and Colorectal Cancer Risk Using the Colorectal Cancer Family Registry
Published in Cancer epidemiology, biomarkers & prevention (01-01-2010)“…Background: The MTHFR C677T TT genotype is associated with a 15% to 18% reduction in colorectal cancer risk, but it is not clear if other variants of the gene…”
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Genetic Variation in the Vitamin D Receptor (VDR) and the Vitamin D―Binding Protein (GC) and Risk for Colorectal Cancer: Results from the Colon Cancer Family Registry
Published in Cancer epidemiology, biomarkers & prevention (01-02-2010)“…Epidemiologic evidence supports a role for vitamin D in colorectal cancer (CRC) risk. Variants in vitamin D-related genes might modify the association between…”
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BRCA1 and BRCA2 Mutation Carriers, Oral Contraceptive Use, and Breast Cancer Before Age 50
Published in Cancer epidemiology, biomarkers & prevention (01-10-2006)“…Background: Understanding the effect of oral contraceptives on risk of breast cancer in BRCA1 or BRCA2 mutation carriers is important because oral…”
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Vitamins B2, B6, and B12 and Risk of New Colorectal Adenomas in a Randomized Trial of Aspirin Use and Folic Acid Supplementation
Published in Cancer epidemiology, biomarkers & prevention (01-08-2008)“…Background: Folate, other vitamin B cofactors, and genes involved in folate-mediated one-carbon metabolism all may play important roles in colorectal…”
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Multivitamin, calcium and folic acid supplements and the risk of colorectal cancer in Lynch syndrome
Published in International journal of epidemiology (01-06-2016)Get full text
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Colorectal Adenomas in a Randomized Folate Trial: The Role of Baseline Dietary and Circulating Folate Levels
Published in Cancer epidemiology, biomarkers & prevention (01-10-2008)“…The Aspirin/Folate Polyp Prevention Study is a randomized, placebo-controlled trial of aspirin use and folic acid supplementation and incidence of colorectal…”
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Association of the colorectal CpG island methylator phenotype with molecular features, risk factors, and family history
Published in Cancer epidemiology, biomarkers & prevention (01-03-2015)“…The CpG island methylator phenotype (CIMP) represents a subset of colorectal cancers characterized by widespread aberrant DNA hypermethylation at select CpG…”
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MTHFR Genotype and Colorectal Adenoma Recurrence: Data from a Double-blind Placebo-controlled Clinical Trial
Published in Cancer epidemiology, biomarkers & prevention (01-09-2008)“…Methylenetetrahydrofolate reductase (MTHFR) is a key enzyme in folate metabolism. We assessed the association between two common MTHFR variants, 677C>T and…”
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Folate-genetics and colorectal neoplasia: What we know and need to know next
Published in Molecular nutrition & food research (01-04-2013)“…Scope The metabolism of folate involves a complex network of polymorphic enzymes that may explain a proportion of the risk associated with colorectal…”
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Modeling Exposures for DNA Methylation Profiles
Published in Cancer epidemiology, biomarkers & prevention (01-03-2006)“…We extend the finite mixture model to estimate the association between exposure and latent disease subtype measured by DNA methylation profiles. Estimates from…”
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