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ALK7 gene polymorphism is associated with metabolic syndrome risk and cardiovascular remodeling.


ABSTRACT: BACKGROUND: Activin receptor-like kinase 7 (ALK7) is a type I receptor for the TGF-? superfamily and has recently been demonstrated to play an important role in the maintenance of metabolic homeostasis. OBJECTIVE: To investigate the association of the ALK7 gene polymorphism with metabolic syndrome (MetS) and cardiovascular remodeling in MetS patients. METHODS: The single nucleotide polymorphism rs13010956 in the ALK7 gene was genotyped in 351 Chinese subjects undergoing carotid and cardiac ultrasonography. The associations of the ALK7 gene polymorphism with the MetS phenotype, MetS parameters, and cardiovascular ultrasonic features were analyzed. RESULTS: The rs13010956 polymorphism in the ALK7 gene was found to be significantly associated with the MetS phenotype in females (p < 0.05) and was also significantly associated with blood pressure in the total (p < 0.05) and female populations (p < 0.01). Further analysis revealed that rs13010956 was associated with mean intima-media thickness of the carotid arteries in females (p < 0.05). After control for body mass index, blood pressure, fasting blood glucose, and triglycerides, rs13010956 was also found to be significantly associated with left ventricular mass index in the total (p < 0.05) and female populations (p < 0.05). CONCLUSION: Our findings suggested that the ALK7 gene polymorphism rs13010956 was significantly associated with MetS risk in females and may be involved in cardiovascular remodeling in MetS patients.

SUBMITTER: Zhang W 

PROVIDER: S-EPMC3998149 | BioStudies | 2013-01-01

REPOSITORIES: biostudies

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