Weak associations between human leukocyte antigen (HLA) genotype and acute myocardial infarction

DSpace Repository

Weak associations between human leukocyte antigen (HLA) genotype and acute myocardial infarction

Show full item record

Files for download

Find Full text There are no files associated with this item.

Facebook

Simple item record

Publication Article, peer reviewed scientific
Title Weak associations between human leukocyte antigen (HLA) genotype and acute myocardial infarction
Author(s) Björkbacka, Harry ; Lavant, Eva H ; Nordin Fredrikson, Gunilla ; Melander, Olle ; Berglund, Göran ; Carlson, Joyce A ; Nilsson, Jan
Date 2010
English abstract
OBJECTIVES: Human leucocyte antigens (HLAs) are polymorphic molecules involved in antigen presentation. Associations between HLA type and autoimmune diseases, such as type 1 diabetes and rheumatoid arthritis, are well established but the potential association of genetic variation affecting antigen presentation with cardiovascular disease has not been systematically investigated in large cohorts. The importance of such studies is stressed by recent experimental findings of an involvement of autoimmunity in the atherosclerotic disease process. RESULTS: An SSP-PCR method was used for HLA genotyping to determine associations of HLA-DRB1, -DQA1 and -DQB1 with cardiovascular disease in a population-based cohort of 1188 acute myocardial infarction (AMI) patients and 1191 matched healthy controls. The HLA-DRB1*0101 allele, as well as the HLA-DRB1*0101-DQA1*01-DQB1*05 haplotype, was found to be associated with increased risk for AMI (OR 1.24; 95% CI 1.00-1.54 for both). In contrast, the DRB1*07 and DQA*02 alleles (OR 0.78; 95% CI 0.65-0.95 for both), as well as the DRB1*07-DQA*02-DQB*02 haplotype, conferred protection (OR 0.79; 95% CI 0.63-0.98). An HLA risk score taking each individual's both haplotypes into account was higher amongst cases (2.43 +/- 0.92 vs. 2.29 +/- 0.95, P = 0.001). The association between HLA risk score and AMI was independent of other cardiovascular risk factors assessed. CONCLUSIONS: This study demonstrates that the associations between HLA-DRB1 and DQA1 loci and cardiovascular disease exists but that they are considerably weaker than those previously reported for other diseases with an established autoimmune aetiology such as type 1 diabetes, systemic lupus erythematosus and rheumatoid arthritis.
DOI http://dx.doi.org/10.1111/j.1365-2796.2009.02209.x (link to publisher's fulltext)
Host/Issue Journal of Internal Medicine;1
Volume 268
ISSN 1365-2796
Pages 50-58
Language eng (iso)
Subject(s) Medicine
Research Subject Categories::MEDICINE
Handle http://hdl.handle.net/2043/11249 (link to this page)

This item appears in the following Collection(s)

Show full item record

Search


Browse

My Account

Statistics