RGD Reference Report - Subsets of SNPs define rare genotype classes that predict ischemic heart disease. - Rat Genome Database

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Subsets of SNPs define rare genotype classes that predict ischemic heart disease.

Authors: Frikke-Schmidt, R  Sing, CF  Nordestgaard, BG  Steffensen, R  Tybjaerg-Hansen, A 
Citation: Frikke-Schmidt R, etal., Hum Genet. 2007 Feb;120(6):865-877. Epub 2006 Sep 28.
RGD ID: 1601238
Pubmed: PMID:17006673   (View Abstract at PubMed)
PMCID: PMC1850964   (View Article at PubMed Central)
DOI: DOI:10.1007/s00439-006-0233-y   (Journal Full-text)

Single nucleotide polymorphisms (SNPs) are hypothesized to explain the genetic predisposition to ischemic heart disease (IHD) in the general population. Lack of evidence for a role of such variation is fostering pessimism about the utility of genetic information in the practice of medicine. In this study we determined the utility of exonic and 5' SNPs in apolipoprotein E (APOE) and lipoprotein lipase (LPL) when considered singly and in combination for predicting incidence of IHD in 8,456 individuals from the general population during 24 years of follow-up. In men, LPL D9N improved prediction of IHD (P = 0.03) beyond smoking, diabetes and hypertension. The group of men heterozygous and homozygous for the rare D9N variant had a hazard ratio (HR) of 1.69 (95% confidence interval = 1.10-2.58) relative to the most common genotype. Pairwise combinations of D9N with -219G > T in APOE and N291S and S447X in LPL significantly improved the prediction of IHD (P = 0.05 in women, P = 0.04 in men, P = 0.03 in men, respectively) beyond smoking, diabetes and hypertension, and identified subgroups of individuals (n = 6-94) with highly significant HRs of 1.92-4.35. These results were validated in a case-control study (n = 8,806). In conclusion, we present evidence that combinations of SNPs in APOE and LPL identify subgroups of individuals at substantially increased risk of IHD beyond that associated with smoking, diabetes and hypertension.

RGD Manual Disease Annotations    Click to see Annotation Detail View
TermQualifierEvidenceWithReferenceNotesSourceOriginal Reference(s)
Myocardial Ischemia susceptibilityIAGP 1601238DNA:polymorphism:promoter:-219G>T (human)RGD 
Myocardial Ischemia susceptibilityISOAPOE (Homo sapiens)1601238; 1601238DNA:polymorphism:promoter:-219G>T (human)RGD 

Objects Annotated

Genes (Rattus norvegicus)
Apoe  (apolipoprotein E)

Genes (Mus musculus)
Apoe  (apolipoprotein E)

Genes (Homo sapiens)
APOE  (apolipoprotein E)


Additional Information