Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
9355
pubmed:dateCreated
2003-2-7
pubmed:abstractText
Results from two small studies, involving a total of only 174 cases, have suggested that the increased risk of coronary heart disease conferred by cigarette smoking is substantially affected by genotype at the apolipoprotein E (APOE) epsilon2/epsilon3/epsilon4 polymorphism. We have established APOE genotypes in 4484 patients with acute myocardial infarction diagnosed before the age of 55 years for male and 65 years for female patients, and in 5757 controls with no history of cardiovascular disease. On average, the hazard ratio for myocardial infarction was 1.17 (95% CI 1.09-1.25; p<0.00001) per stepwise change from epsilon3/2 to epsilon3/3 to epsilon3/4 genotype. Among individuals in this study with known cigarette smoking status, the hazard ratio for myocardial infarction in smokers versus non-smokers was 4.6 (4.2-5.1). There was, however, no significant difference between the smoker/non-smoker hazard ratios for those with different APOE genotypes (chi2(2)=0.69; p=0.7). When differences in risk between different genotypes are not extreme (as with this APOE polymorphism), reliable assessment of hypothesised gene-environment interactions will often require the study of many thousands of disease cases.
pubmed:commentsCorrections
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
AIM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:month
Feb
pubmed:issn
0140-6736
pubmed:author
pubmed:issnType
Print
pubmed:day
1
pubmed:volume
361
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
396-8
pubmed:dateRevised
2006-11-15
pubmed:meshHeading
pubmed-meshheading:12573381-Aged, pubmed-meshheading:12573381-Apolipoprotein E2, pubmed-meshheading:12573381-Apolipoprotein E3, pubmed-meshheading:12573381-Apolipoprotein E4, pubmed-meshheading:12573381-Apolipoproteins E, pubmed-meshheading:12573381-Case-Control Studies, pubmed-meshheading:12573381-Coronary Disease, pubmed-meshheading:12573381-Female, pubmed-meshheading:12573381-Gene Frequency, pubmed-meshheading:12573381-Genotype, pubmed-meshheading:12573381-Great Britain, pubmed-meshheading:12573381-Humans, pubmed-meshheading:12573381-Logistic Models, pubmed-meshheading:12573381-Male, pubmed-meshheading:12573381-Middle Aged, pubmed-meshheading:12573381-Polymorphism, Genetic, pubmed-meshheading:12573381-Proportional Hazards Models, pubmed-meshheading:12573381-Questionnaires, pubmed-meshheading:12573381-Risk Factors, pubmed-meshheading:12573381-Smoking
pubmed:year
2003
pubmed:articleTitle
Large-scale evidence that the cardiotoxicity of smoking is not significantly modified by the apolipoprotein E epsilon2/epsilon3/epsilon4 genotype.
pubmed:affiliation
Institute of Human Genetics, University of Newcastle upon Tyne, Newcastle upon Tyne, UK. b.d.keavney@ncl.ac.uk
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't