Genome-wide linkage analysis reveals evidence of multiple regions that influence variation in plasma lipid and apolipoprotein levels associated with risk of coronary heart disease

Kathy L. Klos, Sharon L R Kardia, Robert E. Ferrell, Stephen T Turner, Eric Boerwinkle, Charles F. Sing

Research output: Contribution to journalArticle

56 Citations (Scopus)

Abstract

Results of genome-wide linkage analyses to identify chromosomal regions that influence interindividual variation in plasma lipid and apolipoprotein levels in the Rochester, Minn, population are reported. Analyses were conducted for total cholesterol (total-C), triglycerides (TGs), high density lipoprotein cholesterol (HDL-C), apolipoprotein A-I, apolipoprotein A-II, apolipoprotein B, apolipoprotein C-II, apolipoprotein C-III, apolipoprotein E, the total-C/HDL-C ratio, and the TG/HDL-C ratio. Genotypes were measured for 373 genome-wide marker loci on 1484 individuals distributed among 232 multigeneration pedigrees sampled without regard to health status. LOD scores and estimates of additive genetic variance associated with map locations were obtained by using the variance-component method of linkage analysis. No evidence of linkage with genes influencing variation in age served as a negative control. Plasma apolipoprotein E levels and the apolipoprotein E gene served as a positive control (LOD score 4.20). Evidence (LOD score >2.00) was provided that was suggestive of a gene or genes on chromosomes 4 and 5 influencing variation in the apolipoprotein A-II level, on chromosome 12 influencing variation in the apolipoprotein A-I level, and on chromosome 17 influencing variation of total-C/HDL-C. These analyses provide new information about genomic regions in humans that influence interindividual variation in plasma lipid and apolipoprotein levels and serve as a basis for further fine-mapping studies to identify new genes involved in lipid metabolism.

Original languageEnglish (US)
Pages (from-to)971-978
Number of pages8
JournalArteriosclerosis, Thrombosis, and Vascular Biology
Volume21
Issue number6
StatePublished - 2001
Externally publishedYes

Fingerprint

Apolipoproteins
Coronary Disease
HDL Cholesterol
Genome
Lipids
Apolipoproteins E
Apolipoprotein A-II
Genes
Apolipoprotein A-I
Triglycerides
Apolipoprotein C-II
Cholesterol
Apolipoprotein C-III
Chromosomes, Human, Pair 12
Chromosomes, Human, Pair 5
Chromosomes, Human, Pair 17
Chromosomes, Human, Pair 4
Apolipoproteins B
Pedigree
Lipid Metabolism

Keywords

  • Apolipoprotein A-I
  • Apolipoprotein A-II
  • Apolipoprotein E
  • Genetic linkage
  • High density lipoproteins
  • Total cholesterol

ASJC Scopus subject areas

  • Cardiology and Cardiovascular Medicine

Cite this

Genome-wide linkage analysis reveals evidence of multiple regions that influence variation in plasma lipid and apolipoprotein levels associated with risk of coronary heart disease. / Klos, Kathy L.; Kardia, Sharon L R; Ferrell, Robert E.; Turner, Stephen T; Boerwinkle, Eric; Sing, Charles F.

In: Arteriosclerosis, Thrombosis, and Vascular Biology, Vol. 21, No. 6, 2001, p. 971-978.

Research output: Contribution to journalArticle

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