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Plasma 25-hydroxyvitamin D and its genetic determinants in relation to incident myocardial infarction and stroke in the European prospective investigation into cancer and nutrition (EPIC)-Germany study.
PLoS One. 2013; 8(7):e69080.Plos

Abstract

Circulating 25-hydroxyvitamin D (25(OH)D) has been associated with cardiovascular disease (CVD) risk in observational studies. Also, SNPs to explain variation in 25(OH)D have been identified by genome-wide association studies. Detection of direct associations between SNPs that significantly affect 25(OH)D and CVD risk would indicate a causal role of vitamin D, as reverse causation could be excluded and confounding could be better controlled. Thus, a combined analysis of candidate SNPs in relation to circulating 25(OH)D and CVD risk was carried out. A case-cohort study within the EPIC-Germany study was conducted comprising a randomly drawn subcohort of 2,132 subjects (57.9% women, mean age: 50.6 years) and incident cases of myocardial infarction (n=559) and stroke (n=471) that occurred during a mean follow-up duration of 7.6 years. 25(OH)D concentrations were measured by LC-MS/MS in baseline plasma samples. Additionally, eight candidate SNPs were assayed. Associations between 25(OH)D, SNPs and the risks of myocardial infarction and stroke were assessed by multivariable regression analyses. Mean 25(OH)D level was 47.2 nmol/L in the subcohort. Four SNPs were associated with 25(OH)D (p<0.05). In subjects with 25(OH)D levels <25 nmol/L, the risks of CVD as composite endpoint (Hazard Ratio: 1.53, 95% confidence interval: 1.12-2.09), myocardial infarction, and stroke were significantly increased compared to subjects with levels ≥ 50 nmol/L, while no significant linear associations were observed. A SNP score was not related to the risks of total CVD (Hazard Ratio: 1.0, 95% confidence interval: 0.71-1.42), myocardial infarction, or stroke. The same was true concerning single SNPs. Given the lack of association between SNPs and the risks of stroke and myocardial infarction, the present findings do not point to a major causal role of vitamin D in the development of these diseases. However, a detection of modest associations between genetic markers and CVD risk in larger consortia cannot be ruled out.

Authors+Show Affiliations

Division of Cancer Epidemiology, German Cancer Research Center, Heidelberg, Germany.No affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info availableNo affiliation info available

Pub Type(s)

Journal Article
Multicenter Study
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

23935930

Citation

Kühn, Tilman, et al. "Plasma 25-hydroxyvitamin D and Its Genetic Determinants in Relation to Incident Myocardial Infarction and Stroke in the European Prospective Investigation Into Cancer and Nutrition (EPIC)-Germany Study." PloS One, vol. 8, no. 7, 2013, pp. e69080.
Kühn T, Kaaks R, Teucher B, et al. Plasma 25-hydroxyvitamin D and its genetic determinants in relation to incident myocardial infarction and stroke in the European prospective investigation into cancer and nutrition (EPIC)-Germany study. PLoS One. 2013;8(7):e69080.
Kühn, T., Kaaks, R., Teucher, B., Hirche, F., Dierkes, J., Weikert, C., Katzke, V., Boeing, H., Stangl, G. I., & Buijsse, B. (2013). Plasma 25-hydroxyvitamin D and its genetic determinants in relation to incident myocardial infarction and stroke in the European prospective investigation into cancer and nutrition (EPIC)-Germany study. PloS One, 8(7), e69080. https://doi.org/10.1371/journal.pone.0069080
Kühn T, et al. Plasma 25-hydroxyvitamin D and Its Genetic Determinants in Relation to Incident Myocardial Infarction and Stroke in the European Prospective Investigation Into Cancer and Nutrition (EPIC)-Germany Study. PLoS One. 2013;8(7):e69080. PubMed PMID: 23935930.
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TY - JOUR T1 - Plasma 25-hydroxyvitamin D and its genetic determinants in relation to incident myocardial infarction and stroke in the European prospective investigation into cancer and nutrition (EPIC)-Germany study. AU - Kühn,Tilman, AU - Kaaks,Rudolf, AU - Teucher,Birgit, AU - Hirche,Frank, AU - Dierkes,Jutta, AU - Weikert,Cornelia, AU - Katzke,Verena, AU - Boeing,Heiner, AU - Stangl,Gabriele I, AU - Buijsse,Brian, Y1 - 2013/07/25/ PY - 2013/02/27/received PY - 2013/06/05/accepted PY - 2013/8/13/entrez PY - 2013/8/13/pubmed PY - 2014/3/7/medline SP - e69080 EP - e69080 JF - PloS one JO - PLoS One VL - 8 IS - 7 N2 - Circulating 25-hydroxyvitamin D (25(OH)D) has been associated with cardiovascular disease (CVD) risk in observational studies. Also, SNPs to explain variation in 25(OH)D have been identified by genome-wide association studies. Detection of direct associations between SNPs that significantly affect 25(OH)D and CVD risk would indicate a causal role of vitamin D, as reverse causation could be excluded and confounding could be better controlled. Thus, a combined analysis of candidate SNPs in relation to circulating 25(OH)D and CVD risk was carried out. A case-cohort study within the EPIC-Germany study was conducted comprising a randomly drawn subcohort of 2,132 subjects (57.9% women, mean age: 50.6 years) and incident cases of myocardial infarction (n=559) and stroke (n=471) that occurred during a mean follow-up duration of 7.6 years. 25(OH)D concentrations were measured by LC-MS/MS in baseline plasma samples. Additionally, eight candidate SNPs were assayed. Associations between 25(OH)D, SNPs and the risks of myocardial infarction and stroke were assessed by multivariable regression analyses. Mean 25(OH)D level was 47.2 nmol/L in the subcohort. Four SNPs were associated with 25(OH)D (p<0.05). In subjects with 25(OH)D levels <25 nmol/L, the risks of CVD as composite endpoint (Hazard Ratio: 1.53, 95% confidence interval: 1.12-2.09), myocardial infarction, and stroke were significantly increased compared to subjects with levels ≥ 50 nmol/L, while no significant linear associations were observed. A SNP score was not related to the risks of total CVD (Hazard Ratio: 1.0, 95% confidence interval: 0.71-1.42), myocardial infarction, or stroke. The same was true concerning single SNPs. Given the lack of association between SNPs and the risks of stroke and myocardial infarction, the present findings do not point to a major causal role of vitamin D in the development of these diseases. However, a detection of modest associations between genetic markers and CVD risk in larger consortia cannot be ruled out. SN - 1932-6203 UR - https://www.unboundmedicine.com/medline/citation/23935930/Plasma_25_hydroxyvitamin_D_and_its_genetic_determinants_in_relation_to_incident_myocardial_infarction_and_stroke_in_the_European_prospective_investigation_into_cancer_and_nutrition__EPIC__Germany_study_ L2 - https://dx.plos.org/10.1371/journal.pone.0069080 DB - PRIME DP - Unbound Medicine ER -