Association of vitamin D receptor gene polymorphisms with serum 25(OH)D levels and metabolic syndrome in Thai population
Gene, Volume 659, 15 June 2018, Pages 59–66, https://doi.org/10.1016/j.gene.2018.03.047
Boonnisa Sangkaewa, Manit Nuinoona, b, Nutjaree Jeenduanga, b, ,
- VDR TaqI TT, and BsmI BB + Bb genotypes were associated with lower 25(OH)D in MetS.
- VDR BsmI BB + Bb genotypes increased odds ratio of hypertriglyceridemia.
- VDR Cdx2 GG genotype was associated with higher WC in all subjects.
Metabolic syndrome (MetS) increases the risk of developing cardiovascular disease (CVD) and type 2 diabetes mellitus (T2DM). The vitamin D receptor gene (VDR) polymorphisms have been found associated with MetS and serum 25(OH)D levels but these associations remain controversial. The aim of this study was to investigate the relationship between the VDR polymorphisms and MetS, metabolic components, and serum 25(OH)D levels within the Thai population. A case–control study included 237 participants with MetS according to the MetS diagnostic criteria of NCEP ATPIII and 376 controls. Anthropometric data, blood pressure, lipid profiles, serum 25 (OH)D, and fasting blood glucose were measured. VDR FokI, BsmI, TaqI, and Cdx2 polymorphisms were genotyped by using PCR-HRM. There were no significant differences in the frequencies of VDR genotypes and alleles between MetS and the control groups. VDR TaqI TT, and BsmI BB + Bb genotypes were associated with lower 25(OH)D levels (p < 0.05) in comparison to TaqI Tt, and BsmI bb genotypes in the MetS group, respectively. In addition, the VDR Cdx2 GG genotype was associated with higher WC compared with the AG genotype in all subjects (p < 0.05). Logistic regression analysis revealed that BB + Bb genotypes of the VDR BsmI had significantly increased the odds ratio (OR) of hypertriglyceridemia when compared with the bb genotype (OR 1.87; 95% CI 1.10–3.19, p = 0.022). In conclusion, VDR BsmI variant was associated with hypertriglyceridemia and may be predisposed to developing MetS. VDR TaqI and BsmI polymorphisms seems to influence serum 25(OH)D levels in MetS subjects, while Cdx2 polymorphism may influence WC in all subjects.
VDR Gene variation and insulin resistance related diseases.
Lipids Health Dis. 2017 Aug 19;16(1):157. doi: 10.1186/s12944-017-0477-7.
Han FF1, Lv YL1, Gong LL1, Liu H1, Wan ZR1, Liu LH2.
Vitamin D status may influence the risk of Insulin resistance related diseases such as Type 2 diabetes (T2DM), metabolic syndrome (MetS), and polycystic ovarian syndrome (PCOS). Several studies have assessed vitamin D receptor (VDR) gene polymorphism in relationship with these diseases; however, results remain inconsistent. Our study was conducted to elucidate whether VDR Gene polymorphisms could predict insulin resistance on a large scale.
A meta-analysis using MEDLINE and EMBASE, was performed up to December 16th, 2016. Studies reporting association of vitamin D gene polymorphism with incident T2DM, MetS and PCOS outcomes were included and sub-group analysis by pigment of skin and latitude were performed.
A total of 28 articles based on four gene variation, and comprising 9232 participants with 5193 Insulin resistance related diseases patients were included. No significant associations of the VDR ApaI, BsmI, FokI and TaqI variant with Insulin resistance related diseases were found. However, sub-group analysis analysis showed that PCOS in TaqI (OR = 1.47, 95% CI = 1.03-2.09, P = 0.03) for T allele and MetS for G allele (OR = 1.41, 95% CI = 1.07-1.85, P = 0.01) in BsmI was significant association with VDR gene polymorphism. Simultaneously, sub-group analysis showed VDR ApaI rs7975232(G > T)variant was associated with insulin resistance related diseases in Asians (GG/GT + TT) (OR, 1.62; 95% CI, 1.03-2.53; P = 0.04) and population who lived in middle latitude district (30-60°) (GG/GT + TT) (OR, 1.22; 95% CI, 1.04-1.43; P = 0.02), VDR BsmI rs1544410 (A > G)and VDR Taq1rs731236 (T/C) variant were associated with insulin resistance related diseases in Caucasian (dark-pigmented).
The results suggested that the association between insulin resistance related diseases and VDR ApaI, BsmI, FokI variant was more obvious in dark-pigmented Caucasians and Asians but not in Caucasian with white skin.
PMID: 28822353 PMCID: PMC5563043 DOI: 10.1186/s12944-017-0477-7
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Items in both categories Diabetes and VDR are listed here:
- Type 1 Diabetes is prevented and treated by Vitamin D – review of 16 studies – Sept 2019
- Gestational Diabetes 2.4X more likely if poor Vitamin D Receptor (region in China) – June 2019
- Gestational Diabetes 3 X more likely if poor Vitamin D receptor (Turkey) – May 2019
- Resveratrol prevented bone loss associated with T2DM (probably via VDR) – RCT Sept 2018
- Diabetic nephropathy deactivates the Vitamin D Receptor, reducing tissue Vit D – Feb 2019
- Resveratrol improves health (Vitamin D receptor, etc.)
- Inflammation and immune responses to Vitamin D (perhaps need to measure active vitamin D) – July 2017
- Type 1 Diabetes 14 percent more likely with 2 Vitamin D Receptor mutations – Oct 2017
- Gestational Diabetes Mellitus associated with 4 Vitamin D genes – Oct 2015
- Diabetic nephropathy (Kidney problem) 1.8 X more likely if poor Vitamin D Receptor – meta-analysis July 2017
- Type 1 Diabetes association with poor Vitamin D Receptor: 39 studies – April 2017
- Type 1 diabetes 1.6 times more likely if a Vitamin D Receptor problem – Feb 2017
- Diabetic Retinopathy 2 X more likely if poor Vitamin D Receptor – meta-analysis Nov 2016
- Diabetic foot ulcer 1.7 times more likely if poor Vitamin D Receptor – Jan 2017
- Vitamin D activates the hypothalamus (in rodents) to reduce weight and diabetes– May 2016
- Diabetes (T2) 16 percent more likely if Vitamin D receptor problem – Oct 2015
- Type 1 diabetes associated with faulty Vitamin D receptor genes – May 2013
- Vitamin D receptor gene associated with 50 percent more type 2 Diabetes – meta-analyses 2013, 2016
Vitamin D tests cannot detect Vitamin D Receptor (VDR) problems
A poor VDR restricts Vitamin D from getting in the cells
It appears that 30% of the population has a poor VDR (40% of the Obese )
VDR at-home test $29 - results not easily understood in 2016
There are hints that you may have inherited a poor VDR
Compensate for poor VDR by increasing one or more:
|1) Vitamin D supplement|
Sun, Ultraviolet -B
| Vitamin D in the blood |
and thus in the cells
|2) Magnesium||Vitamin D in the blood |
AND in the cells
|3) Omega-3||Vitamin D in the cells|
|4) Resveratrol||Vitamin D Receptor|
|5) Intense exercise||Vitamin D Receptor|
|6) Get prescription for VDR activator|
|Vitamin D Receptor|
|7) Quercetin (flavonoid)||Vitamin D Receptor|
|8) Zinc is in the VDR||Vitamin D Receptor|
|9) Boron||Vitamin D Receptor ?, |
|10) Essential oils e.g. ginger, curcumin||Vitamin D Receptor|
|11) Progesterone||Vitamin D Receptor|
|12) Infrequent high concentration Vitamin D|
Increases the concentration gradient
|Vitamin D in the cells|
Note: If you are not feeling enough benefit from Vitamin D, you might try increasing VDR activation. You might feel the benefit within days of adding one or more of the above
Far healthier and stronger at age 72 due to supplements Includes 6 supplements which help the VDR
If poor Vitamin D Receptor