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Čierny D, Dobrota D, Kantorová E, Malicherová B, Škereňová M, Javor J, Kurča E, Lehotský J. Analysis of Cdx2 VDR gene polymorphism rs11568820 in association with multiple sclerosis in Slovaks. Neurol Res 2023; 45:912-918. [PMID: 37581270 DOI: 10.1080/01616412.2023.2247195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2023] [Accepted: 08/06/2023] [Indexed: 08/16/2023]
Abstract
Vitamin D deficiency is involved in the pathogenesis of multiple sclerosis (MS), a severe autoimmune demyelinating disease of the central nervous system. The gene polymorphism Cdx-2 (rs11568820, G/A) seriously influences the trancriptional activity of the vitamin D receptor (VDR) that binds the vitamin D responsive elements of target genes including HLA-DRB1*15. The aim of the present study in Slovaks was to analyse the association of Cdx-2 variants with the risk of MS and disability progression, and to assess the DRB1*15:01 allele as a possible confounding factor. In total, 493 MS patients and 417 healthy controls were involved in this study. The genotyping of Cdx-2 was performed using restriction analysis; DRB1*15:01 positivity was determined by a high-resolution melting analysis of its surrogate marker rs3135388 (G/A). Our results did not prove any allelic association between Cdx-2 and a risk of MS (minor allele A - 0.181 in patients vs. 0.161 in controls, OR = 1.15, .95 CI = 0.90-1.47, p = 0.289). The logistic regression analysis, adjusted for sex and age, showed no differences in Cdx-2 genotype counts when using an additive, dominant or recessive genetic model (p = 0.351, 0.150, 0.240 respectively). The Cdx-2 variants were also not associated with disease disability progression, evaluated using the Multiple Sclerosis Severity Score. The HLA-DRB1*15:01 allele was found to strongly increase the risk of MS in our study (0.300 in patients vs. 0.101 in controls, OR = 3.83, .95 CI = 2.94-4.99, p = 1.016 × 10-26, dominant genetic model OR = 4.62, .95 CI = 3.40-6.26, p = 9.1 × 10-23). In summary, we found the Cdx-2 as a single genetic marker not to be associated with MS development or progression in Slovaks, independently of HLA-DRB1*15:01 status.
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Affiliation(s)
- Daniel Čierny
- Department of Clinical Biochemistry, Jessenius Faculty of Medicine, Comenius University in Bratislava and University Hospital Martin, Martin, Slovak Republic
| | - Dušan Dobrota
- Department of Clinical Biochemistry, Jessenius Faculty of Medicine, Comenius University in Bratislava and University Hospital Martin, Martin, Slovak Republic
| | - Ema Kantorová
- Clinic of Neurology, Jessenius Faculty of Medicine, Comenius University in Bratislava and University Hospital Martin, Martin, Slovak Republic
| | - Bibiana Malicherová
- Department of Clinical Biochemistry, Jessenius Faculty of Medicine, Comenius University in Bratislava and University Hospital Martin, Martin, Slovak Republic
| | - Mária Škereňová
- Biomedical Center Martin, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
| | - Juraj Javor
- Department of Immunology, Faculty of Medicine, Comenius University in Bratislava, Bratislava, Slovak Republic
| | - Egon Kurča
- Clinic of Neurology, Jessenius Faculty of Medicine, Comenius University in Bratislava and University Hospital Martin, Martin, Slovak Republic
| | - Ján Lehotský
- Department of Medical Biochemistry and BioMed, Jessenius Faculty of Medicine in Martin, Comenius University in Bratislava, Martin, Slovak Republic
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Mu YY, Liu B, Chen B, Zhu WF, Ye XH, Li HZ, He XF. Evaluation of Association Studies and an Updated Meta-Analysis of VDR Polymorphisms in Osteoporotic Fracture Risk. Front Genet 2022; 12:791368. [PMID: 35069689 PMCID: PMC8782145 DOI: 10.3389/fgene.2021.791368] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/08/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022] Open
Abstract
Background: Several studies have examined the association between vitamin D receptor (VDR) polymorphisms and osteoporotic fracture risk; however, the results are not uniform. Furthermore, many new articles have been published, and therefore, an updated meta-analysis was performed to further explore these issues. Objectives: The aim of the study was to investigate the association between VDR, BsmI, ApaI, TaqI, FokI, and Cdx2 polymorphisms and osteoporotic fracture risk. Methods: The odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the association between VDR BsmI, ApaI, TaqI, FokI, and Cdx2 polymorphisms and the risk of osteoporotic fracture. We also used the false-positive reporting probability (FPRP) test and the Venice criteria to evaluate the credibility of the statistically significant associations. Results: Overall, this study found that the VDR ApaI and BsmI polymorphisms significantly increased the risk of osteoporotic fracture in European countries and America, respectively. However, when sensitivity analysis was performed after excluding low-quality and Hardy–Weinberg disequilibrium (HWD) studies, it was found that only individuals with the double-mutated genotype have an increased risk of osteoporotic fracture in European countries. In addition, when the credibility of the positive results was assessed, it was found that the positive results were not credible. Conclusion: This meta-analysis indicates that there may be no significant association among the polymorphisms of VDR BsmI, ApaI, TaqI, FokI, and Cdx2 and the risk of osteoporotic fracture. The increased risk of osteoporotic fracture is most likely due to false-positive results.
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Affiliation(s)
- Yi-Yang Mu
- Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Biao Liu
- Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Bin Chen
- Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Wang-Fa Zhu
- Second Affiliated Hospital of Soochow University, Suzhou, China
| | - Xiang-Hua Ye
- Department of Radiotherapy, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, China
| | - Hong-Zhuo Li
- Department of Orthopaedics, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, China
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Kazemian E, Davoodi SH, Akbari ME, Moradi N, Gharibzadeh S, Mondul AM, Jamshidi-Naeini Y, Khademolmele M, Zarins KR, Ghodoosi N, Rozek LS, Amouzegar A. Vitamin D Receptor (VDR) Allelic Variants Correlating with Response to Vitamin D3 Supplementation in Breast Cancer Survivors. Nutr Cancer 2021; 74:68-81. [PMID: 34032540 DOI: 10.1080/01635581.2020.1869790] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
We investigated how vitamin D receptor (VDR) allelic variants affect breast cancer survivors' responses to vitamin D3 supplementation to increase circulating 25-hydroxy vitamin D (25(OH)D) levels. Two hundred and fourteen patients who were diagnosed with breast cancer at least 6 mo, prior to the study and had completed all treatment regimens were assigned to consume 4000 IU of vitamin D3 daily for 12 weeks. Linear and multinomial logistic regression analyses were used to analyze the association of VDR single nucleotide polymorphism (SNPs) with changes in circulating 25(OH)D. The TaqI and BsmI VDR sequence variants modified the effect of vitamin D3 treatment on the plasma 25(OH)D changes (P value = 0.008 for TaqI and P value = 0.0005 for BsmI). Patients with the bb [Q4 vs. Q1 odds ratio(OR) 8.04, 95% confidence interval (CI) 1.55-41.57] and tt [Q4 vs. Q1 OR 4.64 95%CI 1.02-21.02] genotype of BsmI and TaqI had larger increases in plasma 25(OH)D levels compared to those with BB and TT genotype respectively after adjustment for potential confounders. Haplotype analyses suggested the existence of specific combination of alleles that might be associated with circulating 25(OH)D changes. VDR allelic variants modulate vitamin D3 supplementation to increase plasma 25(OH) levels in breast cancer survivors.
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Affiliation(s)
- Elham Kazemian
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Sayed Hossein Davoodi
- Cancer Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Basic Sciences and Cellular and Molecular Nutrition, Faculty of Nutrition Sciences and Food Technology and National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | | | - Nariman Moradi
- Department of Basic Sciences and Cellular and Molecular Nutrition, Faculty of Nutrition Sciences and Food Technology and National Nutrition and Food Technology Research Institute, Shahid Beheshti University of Medical Sciences, Tehran, Iran.,Department of Biochemistry, Faculty of Medicine, Kurdistan University of Medical Sciences, Sanandaj, Iran.,Department of Biochemistry, Faculty of Medicine, Iran University of Medical Sciences, Tehran, Iran
| | - Safoora Gharibzadeh
- Department of Epidemiology and Biostatistics, Pasteur Institute of Iran, Tehran, Iran
| | - Alison M Mondul
- Department of Epidemiology, University of Michigan School of Public Health, Ann Arbor, MI, USA
| | | | - Maryam Khademolmele
- Department of Nutritional Sciences, Texas Tech University, Lubbock, Texas, USA
| | - Katie R Zarins
- Department of Nutrition Science, Faculty of Medical Science and Technology, Islamic Azad University, Science and Research Branch (SRBIAU), Tehran, Iran
| | - Nasim Ghodoosi
- Department of Environmental Health Sciences, University of Michigan, Ann Arbor, MI, USA
| | - Laura S Rozek
- Department of Nutrition Science, Faculty of Medical Science and Technology, Islamic Azad University, Science and Research Branch (SRBIAU), Tehran, Iran
| | - Atieh Amouzegar
- Endocrine Research Center, Research Institute for Endocrine Sciences, Shahid Beheshti University of Medical Sciences, Tehran, Iran
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Marozik P, Rudenka A, Kobets K, Rudenka E. Vitamin D Status, Bone Mineral Density, and VDR Gene Polymorphism in a Cohort of Belarusian Postmenopausal Women. Nutrients 2021; 13:nu13030837. [PMID: 33806559 PMCID: PMC7999336 DOI: 10.3390/nu13030837] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2020] [Revised: 02/16/2021] [Accepted: 02/17/2021] [Indexed: 01/18/2023] Open
Abstract
Vitamin D plays an important role in bone metabolism and is important for the prevention of multifactorial pathologies, including osteoporosis (OP). The biological action of vitamin is realized through its receptor, which is coded by the VDR gene. VDR gene polymorphism can influence individual predisposition to OP and response to vitamin D supplementation. The aim of this work was to reveal the effects of VDR gene ApaI rs7975232, BsmI rs1544410, TaqI rs731236, FokI rs2228570, and Cdx2 rs11568820 variants on bone mineral density (BMD), 25-hydroxyvitamin D level, and OP risk in Belarusian women. Methods. The case group included 355 women with postmenopausal OP, and the control group comprised 247 women who met the inclusion criteria. TaqMan genotyping assay was used to determine VDR gene variants. Results. Rs7975232 A/A, rs1544410 T/T, and rs731236 G/G single variants and their A-T-G haplotype showed a significant association with increased OP risk (for A-T-G, OR = 1.8, p = 0.0001) and decreased BMD (A-T-G, −0.09 g/cm2, p = 0.0001). The rs11568820 A-allele showed a protective effect on BMD (+0.22 g/cm2, p = 0.027). A significant dose effect with 25(OH)D was found for rs1544410, rs731236, and rs11568820 genotypes. Rs731236 A/A was associated with the 25(OH)D deficiency state. Conclusion. Our novel data on the relationship between VDR gene variants and BMD, 25(OH)D level, and OP risk highlights the importance of genetic markers for personalized medicine strategy.
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Affiliation(s)
- Pavel Marozik
- Laboratory of Human Genetics, Institute of Genetics and Cytology of the National Academy of Sciences of Belarus, 220072 Minsk, Belarus;
- Department of General Biology and Genetics, International Sakharov Environmental Institute of the Belarusian State University, 220070 Minsk, Belarus
- Correspondence: ; Tel.: +375-17-364-1614
| | - Alena Rudenka
- Department of Cardiology and Rheumatology, Belarusian Medical Academy of Post-Graduate Education, 220013 Minsk, Belarus;
| | - Katsiaryna Kobets
- Laboratory of Human Genetics, Institute of Genetics and Cytology of the National Academy of Sciences of Belarus, 220072 Minsk, Belarus;
| | - Ema Rudenka
- Department of Cardiology and Internal Diseases, Belarusian State Medical University, 220116 Minsk, Belarus;
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Association between vitamin D receptor BsmI, FokI, and Cdx2 polymorphisms and osteoporosis risk: an updated meta-analysis. Biosci Rep 2020; 40:225702. [PMID: 32627819 PMCID: PMC7364509 DOI: 10.1042/bsr20201200] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2020] [Revised: 06/27/2020] [Accepted: 06/30/2020] [Indexed: 12/06/2022] Open
Abstract
Background: Many studies have reported the association between vitamin D receptor (VDR) polymorphism and osteoporosis risk. However, their results were conflicting. Six previous meta-analyses have been published to analyze VDR BsmI, FokI, and Cdx2 polymorphisms on osteoporosis risk. However, they did not evaluate the reliability of statistically significant associations. Furthermore, a lot of new articles have been published on these themes, and therefore an updated meta-analysis was performed to further explore these issues. Objectives: To explore the association between VDR BsmI, FokI, and Cdx2 polymorphisms polymorphisms and osteoporosis risk. Methods: The odds ratios (ORs) and 95% confidence intervals (95% CIs) were pooled to evaluate the association between VDR BsmI, FokI, and Cdx2 polymorphisms and osteoporosis risk. To evaluate the credibility of statistically significant associations, we applied the false-positive report probabilities (FPRPs) test and the Venice criteria. Results: Overall, statistically significantly increased osteoporosis risk was found in Indians and women for VDR FokI polymorphism. Statistically significantly decreased osteoporosis risk was found in West Asians for VDR BsmI polymorphism. However, when we performed a sensitivity analysis after excluding low quality and Hardy–Weinberg Disequilibrium (HWD) studies, significantly decreased osteoporosis risk was only found in overall population for VDR BsmI polymorphism. Further, less-credible positive results were identified when we evaluated the credibility of positive results. Conclusion: These positive findings should be interpreted with caution and indicate that significant association may most likely result from less-credible, rather than from true associations or biological factors on the VDR BsmI and FokI polymorphisms with osteoporosis risk.
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Neves Marques de Queiroz N, Trindade Cunha de Melo F, de Souza Resende F, Corrêa Janaú L, Jorge Kzan de Souza Neto N, Nascimento de Lemos M, Lobato Virgolino AC, Neres Iunes de Oliveira MC, Leite de Alcântara A, Vilhena de Moraes L, Franco David T, Maia da Silva W, Souza Reis S, Costa dos Santos M, Contente Braga de Souza AC, Freire Piani PP, Arroyo Lara Mourão N, Mileo Felício K, Felício Abrahão Neto J, Felício JS. Vitamin D and PTH: data from a cross-sectional study in an equatorial population. Endocr Connect 2020; 9:667-675. [PMID: 32567548 PMCID: PMC7424356 DOI: 10.1530/ec-20-0206] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/02/2020] [Accepted: 06/18/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE Investigate the prevalence of vitamin D deficiency in an equatorial population through a large-sample study. METHODS Cross-sectional study with 30,224 healthy individuals from the North Region, in Brazil (Amazônia - state of Pará), who had 25-hydroxy-vitamin D (25(OH)D) and intact parathyroid hormone (PTH) serum levels measured by immunoassay method. Those with history of acute or chronic diseases were excluded. Abnormal levels of calcium, creatinine, glycemia and albumin were also exclusion criteria. RESULTS 25(OH)D levels were 29.1 ± 8.2 ng/mL and values <12.7 ng/mL were equal to < -2 s.d. below average. Hypovitaminosis D was present in 10% of subjects according to the Institute of Medicine (values <20 ng/mL) and in 59%, in consonance with Endocrine Society (values 20-30 ng/mL as insufficiency and <20 ng/mL as deficiency) criteria. Individuals were divided according to four age brackets: children, adolescents, adults and elderly, and their 25(OH)D levels were: 33 ± 9; 28.5 ± 7.4; 28.3 ± 7.7; 29.3 ± 8.5 ng/mL, respectively. All groups differed in 25(OH)D, except adolescents vs adults. Regression model showed BMI, sex, living zone (urban or rural) and age as independent variables to 25(OH)D levels. Comparing subjects with vitamin D deficiency (<20 ng/mL) to those with vitamin D insufficiency (20-30 ng/mL), a difference between PTH levels in these two groups was observed (95.9 ± 24.7 pg/mL vs 44.2 ± 64.5 pg/mL; P < 0.01). Additionally, the most accurate predictive vitamin D level for subclinical hyperparathyroidism in ROC curve was 26 ng/mL. CONCLUSION Our equatorial population showed low prevalence of vitamin D hypovitaminosis ranging with age bracket. The insufficient category by Endocrine Society was corroborated by our PTH data.
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Oono F, Sakamoto Y, Tachi Y, Mabashi-Asazuma H, Iida K. Effect of Cdx2 Polymorphism on the Relationship between Dietary Calcium Intake and Peak Bone Mass in Young Japanese Women. Nutrients 2020; 12:nu12010191. [PMID: 32284510 PMCID: PMC7019402 DOI: 10.3390/nu12010191] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/06/2020] [Accepted: 01/08/2020] [Indexed: 11/16/2022] Open
Abstract
Studies investigating the effect of the caudal-type homeobox protein 2 (Cdx2) polymorphism in the vitamin D receptor gene and calcium intake on bone mass have shown inconsistent results. This study investigated whether the effect of calcium intake on peak bone mass is affected by Cdx2 polymorphism in young Japanese women. A cross-sectional study of 500 young women was conducted. Dietary intake was assessed by the Food Frequency Questionnaire. The osteo sono-assessment index (OSI), assessed by the qualitative ultrasound method, was used as a bone mass index. The subjects were divided into two groups by the median calcium intake. The OSI was not different among Cdx2 genotypes and between calcium groups (p = 0.960, p = 0.191, respectively). The interaction between calcium and Cdx2 genotypes on the OSI approached significance (GG versus GA and AA genotypes, p = 0.092). The difference in the OSI between calcium groups was significant in the GG genotype (p = 0.028), but not in the GA or AA genotypes (p = 0.501, p = 0.306, respectively). Adjustment for covariates (body mass index and physical activity) did not change the results. In conclusion, the relationship between dietary calcium intake and peak bone mass may vary according to Cdx2 polymorphism.
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Affiliation(s)
- Fumi Oono
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
| | - Yuri Sakamoto
- Laboratory of Nutrition Physiology, Tokyo Kasei University, Tokyo 173-8602, Japan; (Y.S.); (Y.T.)
| | - Yoichi Tachi
- Laboratory of Nutrition Physiology, Tokyo Kasei University, Tokyo 173-8602, Japan; (Y.S.); (Y.T.)
| | - Hideaki Mabashi-Asazuma
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
| | - Kaoruko Iida
- Department of Nutrition and Food Science, Graduate School of Humanities and Sciences, Ochanomizu University, Tokyo 112-8610, Japan; (F.O.); (H.M.-A.)
- Institute for Human Life Innovation, Ochanomizu University, Tokyo 112-8610, Japan
- Correspondence: ; Tel.: +81-3-5978-5474
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Scimeca M, Centofanti F, Celi M, Gasbarra E, Novelli G, Botta A, Tarantino U. Vitamin D Receptor in Muscle Atrophy of Elderly Patients: A Key Element of Osteoporosis-Sarcopenia Connection. Aging Dis 2018; 9:952-964. [PMID: 30574409 PMCID: PMC6284754 DOI: 10.14336/ad.2018.0215] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2017] [Accepted: 02/15/2018] [Indexed: 12/21/2022] Open
Abstract
In this study, we investigated the relationship between sarcopenia (evaluated in term of fibers atrophy), vitamin d receptor protein expression and TaqI/Cdx2/FokI VDR genotypes in an Italian cohort of osteoporosis(n=44) and osteoarthritis (n=55) patients. Muscle biopsies were fixed and investigated by both immunohistochemistry (vitamin d receptor expression) and transmission electron microscopy (satellite stem cells niches). Vitamin d receptor polymorphisms were studied on DNA extracted from muscle paraffin sections. For the first time, we reported that aging differently affects the VDR activation in OA and OP patients. In particular, while in OP patients we observed a significant reduction of VDR positive myonuclei with age, no “age effect” was observed in OA patients. The frequent activation of VDR could explain the lower number of atrophic fiber that we observed in OA patients respect to OP. From genetic point of view, we showed a putative association among polymorphisms FokI and Cdx2 of VDR gene, vitamin d receptor activation and the occurrence of sarcopenia. Altogether these data open new prospective for the prevention and cure of age-related muscle disorders.
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Affiliation(s)
- Manuel Scimeca
- 1Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy.,2IRCCS San Raffaele, 00166, Rome, Italy
| | - Federica Centofanti
- 1Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy
| | - Monica Celi
- 3Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome, "Policlinico Tor Vergata" Foundation, Rome, Italy
| | - Elena Gasbarra
- 3Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome, "Policlinico Tor Vergata" Foundation, Rome, Italy
| | - Giuseppe Novelli
- 1Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy.,4Neuromed IRCCS, Pozzilli (IS), Italy
| | - Annalisa Botta
- 1Department of Biomedicine and Prevention, University of Rome "Tor Vergata", Via Montpellier 1, Rome 00133, Italy
| | - Umberto Tarantino
- 3Department of Orthopedics and Traumatology, "Tor Vergata" University of Rome, "Policlinico Tor Vergata" Foundation, Rome, Italy.,5Department of Experimental Medicine and Surgery, University "Tor Vergata", Rome 00133, Italy
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Song DW, Wu YD, Tian DD. Association of VDR-FokI and VDBP-Thr420Lys polymorphisms with cervical spondylotic myelopathy: A case-control study in the population of China. J Clin Lab Anal 2018; 33:e22669. [PMID: 30461062 DOI: 10.1002/jcla.22669] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/21/2018] [Revised: 08/02/2018] [Accepted: 08/14/2018] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Cervical spondylotic myelopathy (CSM), a common degenerative disorder, is characterized by chronic progressive compression of the cervical spinal cord. The present case-control study aimed to explore the potential role of VDR-FokI and VDBP-Thr420Lys polymorphisms in the susceptibility to CSM in the Chinese population. METHODS The study enrolled 318 CSM patients and 282 healthy individuals whose clinical data were retrospectively analyzed. Polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) analysis was used to genotype VDR-FokI and VDBP-Thr420Lys polymorphisms. The severity of CSM was assessed using the Japanese Orthopaedic Association (JOA) score with magnetic resonance imaging (MRI) of cervical vertebra. A nonconditional binary logistic regression model was conducted for assessing the risk factors of CSM. RESULTS Patients in the CSM group had longer time duration to bend over desk working than the control group. The ff genotype and f allele frequency of VDR-FokI were elevated in CSM patients. Elevated Ff + ff genotype and f allele frequency of VDR-FokI might increase the risk of CSM. The VDR-FokI polymorphism was associated with nucleus pulposus capillary invasion, necrosis, hyaline degeneration and fibrosis, genesis and hyperplasia of cartilage-like cells, and fibrocyst in the fibrous ring. The VDR-FokI and VDBP-Thr420Lys genotypes conformed to Hardy-Weinberg equilibrium which showed that VDR-FokI and VDBP-Thr420Lys had group representation characteristics. CONCLUSION Binary logistic regression analysis confirmed that VDR-FokI polymorphism and the time to bend over desk working were risk factors of CSM. Our results indicate that VDR-FokI polymorphism may be closely associated with the risk of CSM.
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Affiliation(s)
- De-Wei Song
- Department of Pain, the People's Hospital of Mengyin County, Mengyin, China
| | - Yu-Dong Wu
- Department of Pain, the People's Hospital of Mengyin County, Mengyin, China
| | - Dong-Dong Tian
- Department of Pain, the People's Hospital of Mengyin County, Mengyin, China
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Wang QF, Sun Z, Zheng FR, Zhang GW, Liu Z. Association of Adrenergic Receptor α2A (α2A-AR) Gene rs1800544 Polymorphism with Bone Mineral Density and Bone Turnover Markers in an Elderly Chinese Population. Med Sci Monit 2018; 24:5102-5109. [PMID: 30033441 PMCID: PMC6067018 DOI: 10.12659/msm.908376] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023] Open
Abstract
BACKGROUND Adrenergic receptor α2A (α2A-AR) is up-regulated in osteoporotic bone osteoblasts. Previous research demonstrated an association between polymorphism of a2A-AR gene and bone mineral density (BMD) as well as bone turnover markers (BTMs) in the Slovenian population. The present study aimed to investigate the association of rs1800544 polymorphism of α2A-AR gene with BMD and BTMs in the Chinese elderly population with osteoporosis (OP) or with osteoporotic fractures. MATERIAL AND METHODS A total of 346 unrelated elderly individuals were recruited in the study. Rs1800544 polymorphism was determined by Snapshot technology. BTMs were determined by electrochemiluminescence. BMDs at lumbar spine (LS) and proximal femur were measured with dual-energy X-ray absorptiometry (DEXA). Hardy-Weinberg equilibrium and distribution of genotype frequencies were verified using the chi-squared test. Analysis of co-variance (ANCOVA) adjusted for confounding factors was performed to explore the relationship of rs1800544 polymorphism with BMD and BTMs in all participants and in subgroups. RESULTS The genotype distributions in all subjects and in subgroups conformed to Hardy-Weinberg equilibrium (P>0.1). Distribution of genotype frequencies of subgroups showed no significant differences (P>0.05). Patients with GG genotype in the fracture group had significantly higher serum BTMs level compared with those carrying other genotypes (P<0.05). No significant association between rs1800544 and BTMs was detected in the elderly population with OP. Comparison of BMD at each site in all participants did not show any significant difference in subgroups with CC, CG, and GG genotypes (P>0.05). CONCLUSIONS Rs1800544 polymorphism is associated with BTMs level in Chinese elderly individuals with osteoporotic fractures, indicating the involvement of genetic variation of a2A-AR gene in bone metabolism.
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Affiliation(s)
- Qi-Fei Wang
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China (mainland)
| | - Zhe Sun
- Department of Orthopedics, Zibo Central Hospital, Zibo, Shandong, China (mainland)
| | - Fan-Rong Zheng
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China (mainland)
| | - Guang-Wu Zhang
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China (mainland)
| | - Zheng Liu
- Department of Orthopedics, Peking University Shougang Hospital, Beijing, China (mainland)
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Cdx-2 polymorphism in the vitamin D receptor gene (VDR) marks VDR expression in monocyte/macrophages through VDR promoter methylation. Immunogenetics 2018; 70:523-532. [PMID: 29808256 DOI: 10.1007/s00251-018-1063-5] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2018] [Accepted: 05/16/2018] [Indexed: 12/15/2022]
Abstract
Caudal-type homeobox protein 2 (CDX-2) is an intestine-specific transcription factor (TF), with a polymorphic binding site (Cdx-2, rs11568820, A/G) in the vitamin D receptor gene (VDR). The molecular mechanism underlying Cdx-2 association with conditions like osteoporosis, which depends on intestinal VDR expression and calcium absorption, is believed to be due to higher affinity of CDX-2 for the ancestral A allele compared to the G allele. However, it is unclear why the polymorphism is associated with diseases like tuberculosis, which is dependent on VDR expression in immune cells that do not express CDX-2. This study aimed to explain Cdx-2 variant association with immune-related conditions. We hypothesised that the effect of Cdx-2 polymorphism on VDR expression in monocytes/macrophages, devoid of the CDX-2 TF, is indirect and dependent on circulating 25(OH)D3 and VDR methylation. Primary monocyte/macrophages from healthy donors (n = 100) were activated though TLR2/1 elicitation. VDR mRNA and 25(OH)D3 were quantified by RT-qPCR and LC-MS/MS, respectively. Genotyping and methylation analysis were done by pyrosequencing. AA vs. AG/GG showed reduced levels of 25(OH)D3 (P < 0.010), higher VDR promoter methylation (P < 0.050) and lower VDR mRNA induction (P < 0.050). Analysis of covariance confirmed that the effect of Cdx-2 variants depends primarily on VDR methylation. Thus, VDR methylation may confound association studies linking VDR polymorphisms to disease.
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Role of gene polymorphisms in vitamin D metabolism and in multiple sclerosis. Arh Hig Rada Toksikol 2018; 69:25-31. [DOI: 10.2478/aiht-2018-69-3065] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/01/2017] [Accepted: 03/01/2018] [Indexed: 01/25/2023] Open
Abstract
Abstract
Multiple sclerosis (MS) is a complex inflammatory disease of the central nervous system (CNS) resulting in neurological impairment and disability. There is evidence that adequate vitamin D levels may lower the risk of MS development. The aetiology of MS is complex and involves both genetic and environmental factors. In fact, not one but several genes are believed to lead to the disease. As for environmental factors, one of the most important risk factors is vitamin D deficiency, which, in turn, is closely related to gene polymorphisms that play a role in vitamin D metabolism and regulation. However, information about these gene polymorphisms is quite contradictory. The aim of this review is to discuss the association between some of the vitamin D-related gene variants and MS.
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Vladoiu S, Botezatu A, Anton G, Manda D, Paun D, Oros S, Rosca R, Dinu Draganescu D. THE INVOLVEMENT OF VDR PROMOTER METHYLATION, CDX-2 VDR POLYMORPHISM AND VITAMIN D LEVELS IN MALE INFERTILITY. ACTA ENDOCRINOLOGICA (BUCHAREST, ROMANIA : 2005) 2017; 13:294-301. [PMID: 31149190 PMCID: PMC6516584 DOI: 10.4183/aeb.2017.294] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
INTRODUCTION Vitamin D (VD) levels were correlated with different health conditions, including reproductive disorders in males. Vitamin D action is mediated through vitamin D receptor (VDR), which acts as a transcription factor. VDR gene promoter is embedded in a GC-rich island. The VDR gene has been shown to have several polymorphisms that affect the receptor function. AIM To examine the relationship between Cdx-2 polymorphism (rs17883968), the methylation status of VDR's promoter and serum levels of 25-hydroxyvitamin D in male infertility. PATIENTS AND METHODS A total of 69 infertile men and 37 age-matched controls were enrolled in this study. Vitamin D level assessments were detected using the electrochemiluminescent method. Cdx-2 VDR polymorphism identification was performed by PCR on DNA samples from blood, followed by restriction. Methylation of VDR gene promoter was assessed by qMS-PCR using bisulfite-treated DNA from fresh sperm. RESULTS Vitamin D levels was found to be significantly decreased in infertile groups compared the controls (p=0.0279). The GG genotype was found in a higher percentage in controls and the AA genotype was higher in infertile group (p=0.0056). Infertile homozygote (GG) and heterozygote (GA) individuals had significantly higher vitamin D levels than AA homozygote. Methylation is higher in individuals with lower vitamin D levels and AA genotype is characterized by higher methylation values. CONCLUSION The results provide new insights of Cdx-2 polymorphism is involved in vitamin D deficiency, highlighting the important role of epigenetic modification of vitamin D receptor and male infertility along with the genetic context.
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Affiliation(s)
- S. Vladoiu
- “C.I.Parhon” Institute of Endocrinology, Bucharest, Romania
| | - A. Botezatu
- “Stefan S. Nicolau” Virology Institute, Bucharest, Romania
| | - G. Anton
- “Stefan S. Nicolau” Virology Institute, Bucharest, Romania
| | - D. Manda
- “C.I.Parhon” Institute of Endocrinology, Bucharest, Romania
| | - D.L. Paun
- “Carol Davila” University of Medicine and Pharmacy, Dept. of Endocrinology, Bucharest, Romania
| | - S. Oros
- “C.I.Parhon” Institute of Endocrinology, Bucharest, Romania
- “Carol Davila” University of Medicine and Pharmacy, Dept. of Endocrinology, Bucharest, Romania
| | - R. Rosca
- “C.I.Parhon” Institute of Endocrinology, Bucharest, Romania
- “Carol Davila” University of Medicine and Pharmacy, Dept. of Endocrinology, Bucharest, Romania
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El Kholy M, Elsedfy H, Fernández-Cancio M, Hamza RT, Amr NH, Ahmed AY, Toaima NN, Audí L. Nutritional rickets: vitamin D, calcium, and the genetic make-up. Pediatr Res 2017; 81:356-363. [PMID: 27973470 DOI: 10.1038/pr.2016.222] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/07/2016] [Accepted: 08/23/2016] [Indexed: 01/14/2023]
Abstract
BACKGROUND The prevalence of vitamin D (vitD) deficiency presenting as rickets is increasing worldwide. Insufficient sun exposure, vitD administration, and/or calcium intake are the main causes. However, vitD system-related genes may also have a role. METHODS Prospective study: 109 rachitic children completed a 6-mo study period or until rachitic manifestations disappeared. Thirty children were selected as controls. Clinical and biochemical data were evaluated at baseline in patients and controls and biochemistry re-evaluated at radiological healing. Therapy was stratified in three different protocols. Fifty-four single-nucleotide polymorphisms (SNPs) of five vitD system genes (VDR, CP2R1, CYP27B1, CYP24A1, and GC) were genotyped and their association with clinical and biochemcial data was analyzed. RESULTS Therapy response was similar in terms of radiological healing although it was not so in terms of biochemical normalization. Only VDR gene (promoter, start-codon, and intronic genotypes) was rickets-associated in terms of serum 25-OH-D, calcium, radiological severity and time needed to heal. Eight patients with sufficient calcium intake and 25-OH-D levels carried a VDR genotype lacking minor allele homozygous genotypes at SNPs spread along the gene. CONCLUSION Although patients presented epidemiologic factors strongly contributing to rickets, genetic modulation affecting predisposition, severity, and clinical course is exerted, at least in part, by VDR gene polymorphic variation.
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Affiliation(s)
| | - Heba Elsedfy
- Pediatrics Department, Ain Shams University, Cairo, Egypt
| | - Monica Fernández-Cancio
- Pediatric Endocrinology Research Unit, VHIR (Vall d'Hebron Institut de Recerca), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, CIBERER (Center for Biomedical Research on Rare Diseases), Instituto de Salud Carlos III, Barcelona, Spain
| | | | | | | | | | - Laura Audí
- Pediatric Endocrinology Research Unit, VHIR (Vall d'Hebron Institut de Recerca), Hospital Universitari Vall d'Hebron, Universitat Autònoma de Barcelona, CIBERER (Center for Biomedical Research on Rare Diseases), Instituto de Salud Carlos III, Barcelona, Spain
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Wang G, Yang J, Zheng X, Zhu J, Shi W, Chen A, Chen G, Zhou F. Association of genetic polymorphisms of GALNT3 and VDR with osteoporosis in postmenopausal women. Exp Ther Med 2016; 12:2629-2633. [PMID: 27698765 PMCID: PMC5038359 DOI: 10.3892/etm.2016.3665] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2016] [Accepted: 08/23/2016] [Indexed: 01/31/2023] Open
Abstract
The correlation of genetic polymorphisms of GALNT3 and vitamin D receptor (VDR) with osteoporosis in postmenopausal women was investigated. A total of 1,212 cases of postmenopausal patients diagnosed with osteoporosis (observation group) and 404 cases of postmenopausal women without osteoporosis (control group) were selected. Dual-energy X-ray absorptiometry was used for measurement of bone mineral density (BMD) of lumbar vertebrae L2–4, proximal femoral neck and total hip, and classifications were made. TaqMan genotyping technology was employed to examine tag single-nucleotide polymorphism (tagSNP) of GALNT3 and VDR and the correlation of tagSNP with bone turnover markers (BTMs) and serum calcium and phosphorous levels was analyzed. The multiple logistic regression analysis was used to screen risk factors for osteoporosis. A comparison of age and menopause time of the two groups, yielded no statistical significance difference (P>0.05). BMD and T values of the lumbar vertebrae, femoral neck and total hip in the observation group were significantly lower than those in the control group, and the differences were statistically significant (P<0.05). A comparison of the degree of osteoporosis, yielded statistically significant differences (P<0.05). The proportion of tagSNP of 5 loci in GALNT3 and 3 loci in VDR in the observation group was significantly higher than that in the control group, and the differences were of statistical significance (P<0.05). Levels of 25-OHD3, β-CTX, P1NP and serum calcium in the observation group were lower than those in the control group and the level of serum phosphorus in the observation group was higher than that in the control group, and all of these results were statistically significant (P<0.05). The result of the correlation analysis revealed that rs1425000 and rs757343 were negatively correlated with BTM and serum calcium and phosphorus levels (P<0.05). The result of the regression analysis revealed that 8 tagSNPs were independent risk factors for osteoporosis. Genetic polymorphisms of GALNT3 and VDR were closely associated with osteoporosis in postmenopausal women.
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Affiliation(s)
- Guorong Wang
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Junhua Yang
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Xun Zheng
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Jiahua Zhu
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Wangqing Shi
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Aimin Chen
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Guoxian Chen
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
| | - Fangye Zhou
- Fujian Medical University Teaching Hospital, The First Hospital of Putian, Putian, Fujian 351100, P.R. China
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