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Associations between lipoprotein lipase gene polymorphisms and plasma correlations of lipids, lipoproteins and lipase activities in young myocardial infarction survivors and age-matched healthy individuals from Sweden

Peacock, Rachel E.; Hamsten, Anders; Nilsson-Ehle, Peter LU and Humphries, Steve E. (1992) In Atherosclerosis 97(2-3). p.171-185
Abstract
Association studies were carried out on a sample of 87 patients from Sweden who had survived a myocardial infarction (MI) at a young age and 93 age-matched healthy individuals, to compare the impact of polymorphisms (PvuII, HindIII and Serine447-Stop) at the lipoprotein lipase (LPL) gene locus on among-individual differences in plasma lipid traits and progression of atherosclerosis. Significant linkage disequilibrium was detected between any two of these polymorphisms, with the Stop447 allele being only found on the same chromosome as the rare alleles (no cutting sites) of the PvuII and HindIII polymorphisms. In the healthy individuals, weak associations were found between genotypes of the HindIII polymorphism and triglycerides and the... (More)
Association studies were carried out on a sample of 87 patients from Sweden who had survived a myocardial infarction (MI) at a young age and 93 age-matched healthy individuals, to compare the impact of polymorphisms (PvuII, HindIII and Serine447-Stop) at the lipoprotein lipase (LPL) gene locus on among-individual differences in plasma lipid traits and progression of atherosclerosis. Significant linkage disequilibrium was detected between any two of these polymorphisms, with the Stop447 allele being only found on the same chromosome as the rare alleles (no cutting sites) of the PvuII and HindIII polymorphisms. In the healthy individuals, weak associations were found between genotypes of the HindIII polymorphism and triglycerides and the PvuII polymorphism and high density lipoprotein cholesterol explaining 7.4% and 5.6% of sample variance (P = 0.03 and 0.09), respectively. No associations were found between these traits and genotypes of the Serine447-Stop substitution, and thus it is unlikely to be the cause of the associations seen with the PvuII and HindIII polymorphisms even though it truncates the enzyme amino acid sequence. The presence of the rare allele, H-, of the HindIII polymorphism was associated with a smaller variance in triglycerides and both cholesterol and triglycerides in the very low density lipoprotein fraction, and with larger interdependent variation between these lipid traits, and also between LPL activity and these lipid traits. This implies that the H- allele, rather than the Stop447 allele, has the major impact on interdependence between traits which are directly or indirectly influenced by LPL activity. In the healthy individuals who were carriers of the apolipoprotein E2 allele, the inter-dependence between LPL activity and lipid traits was significantly smaller, and that between high density lipoprotein cholesterol and both cholesterol and triglycerides in the very low density lipoprotein fraction was much larger compared with non-carriers (P < 0.05). No significant associations were found between lipid traits or lipase activity and genotypes of the Serine447-Stop substitution. However, in the patients, global severity of coronary atherosclerosis at the first angiography was significantly associated with haplotype combinations of the HindIII and the Serine447-Stop polymorphisms, with the H-Stop haplotype being associated with the highest median score (P = 0.02). The data suggest that variation at the LPL gene locus is associated with a pleiotropic effect, that is not directly mediated by changes in lipids, on severity of coronary atherosclerosis. (Less)
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author
organization
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Lipoprotein lipase gene polymorphism, Angiography, Myocardial infarction, Lipoproteins, Lipids
in
Atherosclerosis
volume
97
issue
2-3
pages
171 - 185
publisher
Elsevier
external identifiers
  • pmid:1466662
  • scopus:0026484726
ISSN
1879-1484
DOI
10.1016/0021-9150(92)90130-9
language
English
LU publication?
yes
id
0b2a2dd7-e4dc-40e4-94d8-9b1db04afdea (old id 1106799)
date added to LUP
2008-08-08 15:43:06
date last changed
2017-04-30 07:59:49
@article{0b2a2dd7-e4dc-40e4-94d8-9b1db04afdea,
  abstract     = {Association studies were carried out on a sample of 87 patients from Sweden who had survived a myocardial infarction (MI) at a young age and 93 age-matched healthy individuals, to compare the impact of polymorphisms (PvuII, HindIII and Serine447-Stop) at the lipoprotein lipase (LPL) gene locus on among-individual differences in plasma lipid traits and progression of atherosclerosis. Significant linkage disequilibrium was detected between any two of these polymorphisms, with the Stop447 allele being only found on the same chromosome as the rare alleles (no cutting sites) of the PvuII and HindIII polymorphisms. In the healthy individuals, weak associations were found between genotypes of the HindIII polymorphism and triglycerides and the PvuII polymorphism and high density lipoprotein cholesterol explaining 7.4% and 5.6% of sample variance (P = 0.03 and 0.09), respectively. No associations were found between these traits and genotypes of the Serine447-Stop substitution, and thus it is unlikely to be the cause of the associations seen with the PvuII and HindIII polymorphisms even though it truncates the enzyme amino acid sequence. The presence of the rare allele, H-, of the HindIII polymorphism was associated with a smaller variance in triglycerides and both cholesterol and triglycerides in the very low density lipoprotein fraction, and with larger interdependent variation between these lipid traits, and also between LPL activity and these lipid traits. This implies that the H- allele, rather than the Stop447 allele, has the major impact on interdependence between traits which are directly or indirectly influenced by LPL activity. In the healthy individuals who were carriers of the apolipoprotein E2 allele, the inter-dependence between LPL activity and lipid traits was significantly smaller, and that between high density lipoprotein cholesterol and both cholesterol and triglycerides in the very low density lipoprotein fraction was much larger compared with non-carriers (P &lt; 0.05). No significant associations were found between lipid traits or lipase activity and genotypes of the Serine447-Stop substitution. However, in the patients, global severity of coronary atherosclerosis at the first angiography was significantly associated with haplotype combinations of the HindIII and the Serine447-Stop polymorphisms, with the H-Stop haplotype being associated with the highest median score (P = 0.02). The data suggest that variation at the LPL gene locus is associated with a pleiotropic effect, that is not directly mediated by changes in lipids, on severity of coronary atherosclerosis.},
  author       = {Peacock, Rachel E. and Hamsten, Anders and Nilsson-Ehle, Peter and Humphries, Steve E.},
  issn         = {1879-1484},
  keyword      = {Lipoprotein lipase gene polymorphism,Angiography,Myocardial infarction,Lipoproteins,Lipids},
  language     = {eng},
  number       = {2-3},
  pages        = {171--185},
  publisher    = {Elsevier},
  series       = {Atherosclerosis},
  title        = {Associations between lipoprotein lipase gene polymorphisms and plasma correlations of lipids, lipoproteins and lipase activities in young myocardial infarction survivors and age-matched healthy individuals from Sweden},
  url          = {http://dx.doi.org/10.1016/0021-9150(92)90130-9},
  volume       = {97},
  year         = {1992},
}