CLINICAL RESEARCH
FokI vitamin D receptor gene polymorphism and serum 25-hydroxyvitamin D in patients with cardiovascular risk
1
Research Laboratory in Physiology and Physiopathology (LRPP), Health Technology Centre, Faculty of Medicine, Saint Joseph University, Beirut, Lebanon
2
Research Laboratory in Oxidative Stress and Antioxidants, Faculty of Medical Sciences and Doctoral School in Science and Technology, Lebanese University, Beirut, Lebanon
3
Faculty of Medicine, Higher Institute of Public Health, Saint Joseph University, Beirut, Lebanon
4
Medical Genetics Unit, Faculty of Medicine, Saint Joseph University, Beirut, Lebanon
5
Faculty of Public Health, Sagesse University, Beirut, Lebanon
Submission date: 2019-07-18
Final revision date: 2019-11-06
Acceptance date: 2019-11-19
Publication date: 2019-12-31
Arch Med Sci Atheroscler Dis 2019;4(1):298-303
KEYWORDS
cardiovascular diseasevitamin D receptor25-Hydroxyvitamin DFokIsingle-nucleotide polymorphism25-hydroxyvitamin D
TOPICS
ABSTRACT
Introduction:
The biological actions of vitamin D are mediated through vitamin D receptor (VDR). Numerous single-nucleotide polymorphisms (SNPs) in the VDR gene have been identified, and some have been associated with cardiovascular disease (CVD) risk factors. This study aims to evaluate the association of five SNPs in the VDR gene with 25-hydroxyvitamin D (25[OH]D) levels in patients with at least one CVD risk factor.
Material and methods:
Genomic DNA was sequenced using standard Sanger methods for five VDR SNPs (BsmI rs1544410; ApaI rs7975232; Cdx2 rs11568820; TaqI rs731236; FokI rs2228570) in 50 Mediterranean subjects having hypovitaminosis D with at least one documented CVD risk factor, aged 18 years or more. The collected variables were serum levels of (25[OH]D), HbA1c, fasting plasma glucose, triglycerides, LDL cholesterol, and total cholesterol.
Results:
BsmI, ApaI, and TaqI were moderately to highly intercorrelated. Cdx2 was less frequent than expected. With respect to the number of mutations in FokI, levels of (25 [OH]D) were 11.2 ±5.5 ng/ml in the absence of mutations, 12.6 ±4.7 ng/ml in the presence of one mutation, and 16.5 ± 5.5 ng/ml in the presence of two mutations.
Conclusions:
FokI polymorphism is more frequent in subjects with cardiovascular risk factors than in the general Caucasian population.
The biological actions of vitamin D are mediated through vitamin D receptor (VDR). Numerous single-nucleotide polymorphisms (SNPs) in the VDR gene have been identified, and some have been associated with cardiovascular disease (CVD) risk factors. This study aims to evaluate the association of five SNPs in the VDR gene with 25-hydroxyvitamin D (25[OH]D) levels in patients with at least one CVD risk factor.
Material and methods:
Genomic DNA was sequenced using standard Sanger methods for five VDR SNPs (BsmI rs1544410; ApaI rs7975232; Cdx2 rs11568820; TaqI rs731236; FokI rs2228570) in 50 Mediterranean subjects having hypovitaminosis D with at least one documented CVD risk factor, aged 18 years or more. The collected variables were serum levels of (25[OH]D), HbA1c, fasting plasma glucose, triglycerides, LDL cholesterol, and total cholesterol.
Results:
BsmI, ApaI, and TaqI were moderately to highly intercorrelated. Cdx2 was less frequent than expected. With respect to the number of mutations in FokI, levels of (25 [OH]D) were 11.2 ±5.5 ng/ml in the absence of mutations, 12.6 ±4.7 ng/ml in the presence of one mutation, and 16.5 ± 5.5 ng/ml in the presence of two mutations.
Conclusions:
FokI polymorphism is more frequent in subjects with cardiovascular risk factors than in the general Caucasian population.
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| ISSN: | 2451-0629 |
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