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PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
6
pubmed:dateCreated
2007-5-1
pubmed:abstractText
Epidermal growth factor (EGF), a ligand of the EGF receptor, plays a critical role in the development of gastric cancer. Genetic variants in its promoter region may influence transcription activity and contribute to gastric cancer predisposition. To test this hypothesis, we genotyped three EGF promoter polymorphisms (G61A, G-1380A, and A-1744G) in a case-control study of 675 gastric cancer cases and 704 cancer-free controls. We found that the variant genotypes of EGF 61GA/AA were associated with a significantly decreased risk of gastric cancer (OR = 0.77, 95% CI = 0.61-0.95), when compared with wild-type homozygote 61GG. In the combined analysis with all three loci of EGF, subjects carrying one or more variant loci had a significantly decreased risk of gastric cancer in a dose-response manner (adjusted OR = 0.58, 95% CI = 0.42-0.80 for subjects carrying one variant locus and OR = 0.46, 95% CI = 0.32-0.66 for those carrying two to three variant loci, respectively; trend test: chi(2) = 16.14, P < 0.001). Compared with the most common haplotype GGA, haplotypes AGA, GGG and GAA (each containing one variant allele) were associated with 33%, 29% and 34% significantly decreased risk of gastric cancer (adjusted OR = 0.67, 95% CI = 0.55-0.82 for AGA; OR = 0.71, 95% CI = 0.57-0.88 for GGG and OR = 0.66, 95% CI = 0.52-0.84 for GAA, respectively). Our findings indicate that variant genotypes and haplotypes of EGF promoter might play a role in gastric carcinogenesis.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Jun
pubmed:issn
1347-9032
pubmed:author
pubmed:issnType
Print
pubmed:volume
98
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
864-8
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed-meshheading:17433039-Adult, pubmed-meshheading:17433039-Aged, pubmed-meshheading:17433039-Aged, 80 and over, pubmed-meshheading:17433039-Alcohol Drinking, pubmed-meshheading:17433039-Asian Continental Ancestry Group, pubmed-meshheading:17433039-Case-Control Studies, pubmed-meshheading:17433039-China, pubmed-meshheading:17433039-Epidermal Growth Factor, pubmed-meshheading:17433039-Female, pubmed-meshheading:17433039-Gene Frequency, pubmed-meshheading:17433039-Genotype, pubmed-meshheading:17433039-Haplotypes, pubmed-meshheading:17433039-Humans, pubmed-meshheading:17433039-Male, pubmed-meshheading:17433039-Middle Aged, pubmed-meshheading:17433039-Polymorphism, Genetic, pubmed-meshheading:17433039-Promoter Regions, Genetic, pubmed-meshheading:17433039-Regression Analysis, pubmed-meshheading:17433039-Risk Factors, pubmed-meshheading:17433039-Smoking, pubmed-meshheading:17433039-Stomach Neoplasms
pubmed:year
2007
pubmed:articleTitle
Variant genotypes and haplotypes of the epidermal growth factor gene promoter are associated with a decreased risk of gastric cancer in a high-risk Chinese population.
pubmed:affiliation
Department of Epidemiology and Biostatistics, Cancer Research Center of Nanjing Medical University, Nanjing, China.
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't