Tags

Type your tag names separated by a space and hit enter

Associations of methylenetetrahydrofolate reductase C677T polymorphism with markers of subclinical atherosclerosis: the Cardiovascular Risk in Young Finns Study.
Scand J Clin Lab Invest. 2008; 68(1):22-30.SJ

Abstract

OBJECTIVE

To study whether the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism or serum homocysteine concentration is associated with carotid artery intima media thickness (IMT), carotid artery compliance (CAC) or brachial artery flow mediated dilatation (FMD) in a healthy Finnish adult population.

METHODS

Cross-sectional data obtained in 2001 for the Cardiovascular Risk in Young Finns Study were used. Carotid artery IMT, CAC and brachial FMD were measured by ultrasound and serum homocysteine concentrations using a commercial immunoassay kit. We studied 1,440 subjects (aged 24-39 years). Genotyping was performed using the 5' nuclease TaqMan assay.

RESULTS

Homocysteine values differed between genotypes in women and men (ANOVA, p<0.001 for both sex groups): the genotype raised values in the order of CC, CT, TT. There was a significant difference in CAC values between the MTHFR genotypes in men (ANOVA, p = 0.008), and the CC genotype had the lowest values. In multivariate linear regression analysis adjusted for other major coronary risk factors (e.g. age, smoking, body mass index, systolic blood pressure, C-reactive protein), the association remained significant (R (2) = 25.8 %, beta = 0.091; p = 0.02). Homocysteine level was directly associated with CAC in the whole population (R (2) = 18.0 %, beta = 0.012; p = 0.014) and in women (R (2) = 9.3%, beta = 0.02; p = 0.013), but not in men (R (2) = 15.2 %, beta = 0.004; p = 0.444). We found no association between homocysteine level or the MTHFR polymorphism and carotid IMT or brachial artery FMD.

CONCLUSIONS

The findings suggest that the MTHFR polymorphism does not influence IMT or FMD, but that the T allele may have an effect on CAC in men.

Authors+Show Affiliations

Department of Clinical Chemistry, Centre for Laboratory Medicine, Tampere University Hospital, and Medical School at the University of Tampere, Finland. auni.collings@pshp.fiNo 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
Research Support, Non-U.S. Gov't

Language

eng

PubMed ID

17934972

Citation

Collings, A, et al. "Associations of Methylenetetrahydrofolate Reductase C677T Polymorphism With Markers of Subclinical Atherosclerosis: the Cardiovascular Risk in Young Finns Study." Scandinavian Journal of Clinical and Laboratory Investigation, vol. 68, no. 1, 2008, pp. 22-30.
Collings A, Raitakari OT, Juonala M, et al. Associations of methylenetetrahydrofolate reductase C677T polymorphism with markers of subclinical atherosclerosis: the Cardiovascular Risk in Young Finns Study. Scand J Clin Lab Invest. 2008;68(1):22-30.
Collings, A., Raitakari, O. T., Juonala, M., Rontu, R., Kähönen, M., Hutri-Kähönen, N., Rönnemaa, T., Marniemi, J., Viikari, J. S., & Lehtimäki, T. (2008). Associations of methylenetetrahydrofolate reductase C677T polymorphism with markers of subclinical atherosclerosis: the Cardiovascular Risk in Young Finns Study. Scandinavian Journal of Clinical and Laboratory Investigation, 68(1), 22-30.
Collings A, et al. Associations of Methylenetetrahydrofolate Reductase C677T Polymorphism With Markers of Subclinical Atherosclerosis: the Cardiovascular Risk in Young Finns Study. Scand J Clin Lab Invest. 2008;68(1):22-30. PubMed PMID: 17934972.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Associations of methylenetetrahydrofolate reductase C677T polymorphism with markers of subclinical atherosclerosis: the Cardiovascular Risk in Young Finns Study. AU - Collings,A, AU - Raitakari,O T, AU - Juonala,M, AU - Rontu,R, AU - Kähönen,M, AU - Hutri-Kähönen,N, AU - Rönnemaa,T, AU - Marniemi,J, AU - Viikari,J S A, AU - Lehtimäki,T, Y1 - 2007/11/21/ PY - 2007/10/16/pubmed PY - 2008/5/20/medline PY - 2007/10/16/entrez SP - 22 EP - 30 JF - Scandinavian journal of clinical and laboratory investigation JO - Scand J Clin Lab Invest VL - 68 IS - 1 N2 - OBJECTIVE: To study whether the methylenetetrahydrofolate reductase (MTHFR) C677T polymorphism or serum homocysteine concentration is associated with carotid artery intima media thickness (IMT), carotid artery compliance (CAC) or brachial artery flow mediated dilatation (FMD) in a healthy Finnish adult population. METHODS: Cross-sectional data obtained in 2001 for the Cardiovascular Risk in Young Finns Study were used. Carotid artery IMT, CAC and brachial FMD were measured by ultrasound and serum homocysteine concentrations using a commercial immunoassay kit. We studied 1,440 subjects (aged 24-39 years). Genotyping was performed using the 5' nuclease TaqMan assay. RESULTS: Homocysteine values differed between genotypes in women and men (ANOVA, p<0.001 for both sex groups): the genotype raised values in the order of CC, CT, TT. There was a significant difference in CAC values between the MTHFR genotypes in men (ANOVA, p = 0.008), and the CC genotype had the lowest values. In multivariate linear regression analysis adjusted for other major coronary risk factors (e.g. age, smoking, body mass index, systolic blood pressure, C-reactive protein), the association remained significant (R (2) = 25.8 %, beta = 0.091; p = 0.02). Homocysteine level was directly associated with CAC in the whole population (R (2) = 18.0 %, beta = 0.012; p = 0.014) and in women (R (2) = 9.3%, beta = 0.02; p = 0.013), but not in men (R (2) = 15.2 %, beta = 0.004; p = 0.444). We found no association between homocysteine level or the MTHFR polymorphism and carotid IMT or brachial artery FMD. CONCLUSIONS: The findings suggest that the MTHFR polymorphism does not influence IMT or FMD, but that the T allele may have an effect on CAC in men. SN - 0036-5513 UR - https://www.unboundmedicine.com/medline/citation/17934972/Associations_of_methylenetetrahydrofolate_reductase_C677T_polymorphism_with_markers_of_subclinical_atherosclerosis:_the_Cardiovascular_Risk_in_Young_Finns_Study_ L2 - https://www.tandfonline.com/doi/full/10.1080/00365510701487735 DB - PRIME DP - Unbound Medicine ER -