International Journal of Chronic Obstructive Pulmonary Disease September 2015 Volume 2015:10(1) Pages 1809—1817
Sei Won Kim,1 Jong Min Lee,1 Jick Hwan Ha,1 Hyeon Hui Kang,1 Chin Kook Rhee,1 Jin Woo Kim,1 Hwa Sik Moon,1 Ki Hyun Baek,2 Sang Haak Lee1
1Division of Pulmonology, Critical Care and Sleep Medicine,
2Division of Endocrinology and Metabolism, Department of Internal Medicine, St Paul’s Hospital, College of Medicine, The Catholic University of Korea, Seoul, Korea
Note: Vitamin D Receptor does NOT directly change the measured level of vitamin D.
The VDR changes the amount of vitamin D which gets to the cells.
See also VitaminDWiki
- Health outcomes of vitamin D. Parts I (VDR) and II – 2014
- Diseases, Vitamin D Receptor and other genes – June 2014
- Hip fracture risk increased 2.5X if problem with Vitamin D Receptor gene (GC) – March 2014
- Multiple Sclerosis and the Vitamin D Receptor – meta-analysis July 2014
- Overview of COPD and Vitamin D
- Gene makes COPD 2.6X more likely unless get more vitamin D – meta-analysis Dec 2014
Vitamin D Binding Protein gene in this case, not VDR
- 2X higher risk of wheezing and asthma if modified receptor genes, even if vitamin D levels OK – Sept 2015
- Overview Osteoporosis and vitamin D
- Vitamin D level can be high, but little benefit: due to kidney, genes, low Magnesium etc.
- Vitamin D Receptor category listing has
300 items along with related searches
The Receptor is at the far right of the following chart, downstream from Vitamin D measurement
- Osteoporosis 15 percent more likely if poor Vitamin D receptor – meta-analysis Dec 2018
- Disc Degeneration in women is 1.7X more likely if poor Vitamin D Receptor – meta-analysis Jan 2017
- Degeneration of lumbar disc 2.5 X more likely if poor Vitamin D receptor (not detected by test) Feb 2018
- Osteoporosis is associated with more than vitamin D genes – Jan 2016
- 2.8X higher risk of osteoporosis if COPD and modified vitamin D receptor genes – Sept 2015
- Osteoporosis 2.8 X more likely if Vitamin D receptor (VDR) genes altered – Aug 2013
- Vitamin D Receptor genes bb and BB and Osteoporosis, esp. for blacks – meta-analysis Nov 2012
Background: Patients with COPD are at an increased risk of osteoporosis. Although many studies have addressed the relationship between the vitamin D receptor (VDR) polymorphisms and bone health, this relationship has not been fully investigated in patients with COPD. In this study, we investigated the association of VDR polymorphisms with bone mineral density (BMD) and other clinical parameters in patients with COPD.
Patients and methods: In total, 200 patients with COPD were included in this study. The VDR polymorphisms rs1544410 (A/G-BsmI), rs7975232 (A/C-ApaI), rs731236 (C/T-TaqI), and rs10735810 (C/T-FokI) were determined by Sanger sequencing using blood DNA samples. BMD of the lumbar vertebra and the femoral neck was measured by dual-energy X-ray absorptiometry. Other clinical parameters were also evaluated. Haplotype and multivariate analyses were also performed.
Results: Sex, body mass index, steroid use, percentage of forced expiratory volume in 1 second (FEV1), alkaline phosphatase, and 25-hydroxyvitamin D significantly influenced the risk of osteoporosis. Patients with osteoporosis were more likely to carry the rs7975232 C allele compared to normal patients with BMD. Haplotypes GCT and GAT were related to osteoporosis. Patients without the haplotype GAT allele showed a significantly lower T-score at the femoral neck and an increased risk of osteoporosis (odds ratio [OR]= 2.78, 95% confidence interval [CI]= 1.20–6.48, P=0.018) compared with carriers in the dominant model.
Conclusion: Genetic variations in VDR are significantly associated with osteoporosis among patients with COPD. Further studies are required to confirm the role of the VDR polymorphisms in osteoporosis among patients with COPD.