The association of oestrogen receptor {alpha}-haplotypes with cardiovascular risk factors in the British Women's Heart and Health Study.


Lawlor, DA; Timpson, N; Ebrahim, S; Day, IN; Smith, GD; (2006) The association of oestrogen receptor {alpha}-haplotypes with cardiovascular risk factors in the British Women's Heart and Health Study. European heart journal, 27 (13). pp. 1597-604. ISSN 0195-668X DOI: https://doi.org/10.1093/eurheartj/ehi833

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Abstract

AIMS: One previous study among women with established coronary heart disease found a gene-treatment interaction between the oestrogen receptor gene (ESR1) and hormone replacement in their association with high density lipoprotein cholesterol (HDL-c). We aimed to replicate these findings in a general population sample. METHODS AND RESULTS: Cross-sectional associations were assessed in a study of 3404 women from 23 towns across Britain who were aged 60-79 at the time of assessment and were described as white by the examining nurse. Women with the T-A haplotype [constructed from two single nucleotide polymorphisms (SNPs) in the first intron of ESR1: c454-397T>C (rs2234693) and c454-351A>G (rs9340799)], which was predicted to be associated with reduced oestrogen response, were more likely to have been past [per haplotype odds ratio 1.16 (95% CI 1.01, 1.33), P = 0.02] or to be current users [per haplotype odds ratio 1.19 (95% CI 0.99, 1.42), P = 0.05] of hormone replacement. However, there was no association between haplotype or either SNP and HDL-c or other cardiovascular disease risk factors and no statistical evidence of an interaction between hormone replacement use and haplotype or either SNP with respect to HDL-c or any other cardiovascular disease risk factors. CONCLUSION: Women with the T-A haplotype are more likely to use hormone replacement. However, genotyping of ESR1 rs2234693 or rs9340799 in post-menopausal women to tailor hormone replacement is unlikely to markedly improve cardiovascular risk.

Item Type: Article
Faculty and Department: Faculty of Epidemiology and Population Health > Dept of Non-Communicable Disease Epidemiology
Research Centre: Centre for Global Non-Communicable Diseases (NCDs)
PubMed ID: 16551651
Web of Science ID: 238537400018
URI: http://researchonline.lshtm.ac.uk/id/eprint/12044

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