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Associations between homocysteine metabolism related SNPs and carotid intima-media thickness: a Chinese sib pair study.


ABSTRACT: Carotid intima-media thickness (CIMT) is a good surrogate for atherosclerosis. Hyperhomocysteinemia is an independent risk factor for cardiovascular diseases. We aim to investigate the relationships between homocysteine (Hcy) related biochemical indexes and CIMT, the associations between Hcy related SNPs and CIMT, as well as the potential gene-gene interactions. The present study recruited full siblings (186 eligible families with 424 individuals) with no history of cardiovascular events from a rural area of Beijing. We examined CIMT, intima-media thickness for common carotid artery (CCA-IMT) and carotid bifurcation, tested plasma levels for Hcy, vitamin B6 (VB6), vitamin B12 (VB12) and folic acid (FA), and genotyped 9 SNPs on MTHFR, MTR, MTRR, BHMT, SHMT1, CBS genes. Associations between SNPs and biochemical indexes and CIMT indexes were analyzed using family-based association test analysis. We used multi-level mixed-effects regression model to verify SNP-CIMT associations and to explore the potential gene-gene interactions. VB6, VB12 and FA were negatively correlated with CIMT indexes (p?

SUBMITTER: Sun K 

PROVIDER: S-EPMC5337241 | biostudies-literature | 2017 Apr

REPOSITORIES: biostudies-literature

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Associations between homocysteine metabolism related SNPs and carotid intima-media thickness: a Chinese sib pair study.

Sun Kexin K   Song Jing J   Liu Kuo K   Fang Kai K   Wang Ling L   Wang Xueyin X   Li Jing J   Tang Xun X   Wu Yiqun Y   Qin Xueying X   Wu Tao T   Gao Pei P   Chen Dafang D   Hu Yonghua Y  

Journal of thrombosis and thrombolysis 20170401 3


Carotid intima-media thickness (CIMT) is a good surrogate for atherosclerosis. Hyperhomocysteinemia is an independent risk factor for cardiovascular diseases. We aim to investigate the relationships between homocysteine (Hcy) related biochemical indexes and CIMT, the associations between Hcy related SNPs and CIMT, as well as the potential gene-gene interactions. The present study recruited full siblings (186 eligible families with 424 individuals) with no history of cardiovascular events from a  ...[more]

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