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de Azevêdo Silva J, de Lima CAD, Guaraná WL, Barbosa AD, Fragoso TS, Duarte ÂLBP, Crovella S, Sandrin-Garcia P. Vitamin D receptor gene polymorphisms influence on clinical profile and bone mineral density at different skeletal sites in postmenopausal osteoporotic women. Int J Immunogenet 2023; 50:75-81. [PMID: 36725689 DOI: 10.1111/iji.12613] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2022] [Revised: 12/29/2022] [Accepted: 01/19/2023] [Indexed: 02/03/2023]
Abstract
Bone remodeling is marked by bone synthesis and absorption balance, and any altered dynamic in this process leads to osteoporosis (OP). The interaction of hormonal, environmental and genetic factors regulate bone metabolism. Since vitamin D displays a classic role in bone metabolism regulation, acting through vitamin D receptor (VDR), the genetic variants within VDR were the first ones associated with bone density and remodelling. Therefore, we investigated whether three single nucleotide polymorphisms (SNPs) within VDR were associated with OP differential susceptibility and clinical profile from postmenopausal versus healthy women from Northeast Brazil. Genetic association study enrolling 146 postmenopausal osteoporotic women as the patient group and 95 healthy age-matched women as the control group. We assessed three SNPs within VDR (rs11168268, rs1540339 and rs3890733), considering the clinical profile of all patients. Our results showed an association of rs11168268 G/G genotype with higher bone mineral density (BMD) mean for the total hip (A/A = 0.828 ± 0.09; A/G = 0.081 ± 0.13; G/G = 0.876 ± 0.12, p = .039), and the rs3890733 T/T genotype was associated with increased OP risk in patients below 60 years old (odds ratio [OR] = 5.12, 95% confidence interval [CI ]= 1.13-23.27, p = .012). The rs1540339 T/T genotype was associated with protection for individuals with low melanin deposition when compared to the high melanin deposition group (OR = 0.24, 95%CI = 0.06-0.94, p = .029). Additionally, 61% of patients presented deficient vitamin D serum levels. The SNP rs11168268 G/G was associated with a significantly increased mean total hip BMD in patients OP, highlighting this SNP and its relationship with BMD.
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Affiliation(s)
| | | | - Werbson Lima Guaraná
- Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil.,Genetics Postgraduate Program, Federal University of Pernambuco, Recife, Pernambuco, Brazil
| | - Alexandre Domingues Barbosa
- Division of Rheumatology, Clinical Hospital, Federal University of Pernambuco (UFPE), Recife, Pernambuco, Brazil
| | - Thiago Sotero Fragoso
- Division of Rheumatology, University Hospital, Federal University of Alagoas (UFAL), Maceió, Alagoas, Brazil
| | | | - Sergio Crovella
- Biological Sciences Program, Department of Biological and Environmental Sciences, College of Arts and Sciences, Qatar University, Doha, Qatar
| | - Paula Sandrin-Garcia
- Department of Genetics, Federal University of Pernambuco, Recife, Pernambuco, Brazil.,Keizo Asami Institute (iLIKA), Federal University of Pernambuco, Recife, Pernambuco, Brazil
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Ran Y, Hu S, Yu X, Li R. Association of vitamin D receptor gene polymorphism with type 1 diabetes mellitus risk in children: A protocol for systematic review and meta-analysis. Medicine (Baltimore) 2021; 100:e26637. [PMID: 34260558 PMCID: PMC8284714 DOI: 10.1097/md.0000000000026637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2021] [Accepted: 06/24/2021] [Indexed: 01/04/2023] Open
Abstract
BACKGROUND Recent genetic association studies showed that there are contradictory results on the relationship between vitamin D receptor (VDR) gene polymorphisms and type 1 diabetes mellitus (T1DM) risk in children. The purpose of this systematic review is to collect the currently available evidence to evaluate the relationship between VDR gene polymorphisms and the risk of T1DM in children. METHODS Such medical databases as Wanfang Data, Chinese Biomedical Literature Database, Chinese National Knowledge Infrastructure, Chongqing VIP Chinese Science and Technology Periodical Database, PubMed, Embase, and Web of Science were extensively searched for relevant literatures published before June 2021 with the focus on the relationship between VDR gene polymorphisms and the risk of T1DM in children. The risk of bias was evaluated as per the Newcastle-Ottawa Scale by 2 independent researchers. Meta-analysis was performed to quantify the relationship between VDR gene polymorphisms and T1DM risk in children. RESULTS The results of this meta-analysis would be submitted to a peer-reviewed journal for publication. CONCLUSION The relationship between VDR gene polymorphisms and T1DM risk in children is explored via this meta-analysis. ETHICS AND DISSEMINATION Ethical approval was not required for this study. The systematic review will be published in a peer-reviewed journal, presented at conferences, and shared on social media platforms. OSF REGISTRATION NUMBER DOI 10.17605/OSF.IO/Q8XA5.
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Affiliation(s)
- Yalin Ran
- Department of Pediatric, Chongqing Dadukou District People's Hospital, Chongqing, China
| | - Suyuan Hu
- Department of Pediatric, Chongqing Dadukou District People's Hospital, Chongqing, China
| | - Xiaohua Yu
- Department of Pediatric, Chongqing Southeast Hospital, Chongqing, China
| | - Renjun Li
- Department of Pediatric, Chongqing Southeast Hospital, Chongqing, China
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The Influence of Vitamin D Receptor Gene Polymorphisms in Spondyloarthritis. Int J Inflam 2020; 2020:8880879. [PMID: 33376592 PMCID: PMC7738787 DOI: 10.1155/2020/8880879] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2020] [Revised: 10/10/2020] [Accepted: 11/28/2020] [Indexed: 12/19/2022] Open
Abstract
Spondyloarthritis (SpA) is an inflammatory rheumatic disease related to low bone mineral density. Because vitamin D plays an important role in bone metabolism and immune system modulation, the aim of this study was to evaluate the influence of polymorphisms in vitamin D receptor genes (VDR) in the development of SpA. In this case-control study, a total of 244 patients with SpA and 197 individuals with no SpA were included. Among the patients, 174 had ankylosing spondylitis (AS) and 66 had psoriatic arthritis (PsA). Genotyping of FokI (rs2228570 C > T), BsmI (rs1544410 C > T), ApaI (rs7975232 A > C), and TaqI (rs731236 T > C) was performed using PCR-RFLP, while genotyping of HLA-B∗27 was performed using PCR-SSP. Serum levels for hydroxy (OH) vitamin D and the clinical activity index of the disease (BASDAI) were also evaluated. SNPStats and OpenEpi software were used for statistical analysis. The ApaI a allele and ApaI a/a genotype were less frequent in PsA compared with controls. The ApaI a/a genotype was associated with a protecting factor for PsA in females, and ApaI A/a was associated with a protecting factor for the disease in HLA-B∗27 positive patients. Notwithstanding, the ApaI a/a genotype was a risk factor for SpA and AS in males. The FokI f/f genotype was associated with a better clinical activity in PsA. When considering the covariates, vitamin D sufficiency, and gender, the FokI F/F genotype was associated with a risk factor in males with SpA and AS compared with females with this same genotype. In conclusion, the ApaI rs7975232 polymorphism was associated with PsA, and the FokI rs2228570 polymorphism was associated with better clinical PsA activity. ApaI and FokI were associated with SpA and AS when considering gender and vitamin D sufficiency.
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Song N, Yang S, Wang YY, Tang SQ, Zhu YQ, Dai Q, Zhang H. The Impact of Vitamin D Receptor Gene Polymorphisms on the Susceptibility of Diabetic Vascular Complications: A Meta-Analysis. Genet Test Mol Biomarkers 2020; 23:533-556. [PMID: 31373850 DOI: 10.1089/gtmb.2019.0037] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022] Open
Abstract
Background: To determine whether vitamin D receptor (VDR) gene polymorphisms are correlated with susceptibility to diabetic vascular complications. Methods: We included all eligible studies, and used Stata12.0 to calculate the pooled results. Results: Eight thousand eleven diabetic patients and 1635 normal controls from 27 studies were included. Our results showed that there was no correlation between VDR gene TaqI variants and diabetic nephropathy (DN) or diabetic retinopathy (DR) susceptibility. In comparison with diabetic patients without DN, there was a link between the VDR gene ApaI variant and DN susceptibility under allelic model (p = 0.029) in all populations. In addition, the VDR gene BsmI variant correlated with DN under both dominant (p = 0.005) and allelic (p = 0.003) models in Asian populations. The VDR gene FokI variant was also correlated with DN susceptibility under the recessive model (p = 0.027) in the Asian subgroup. In comparison with diabetic patients without DR, we identified a link between the VDR gene ApaI variant and DR susceptibility under the dominant model (p = 0.034) in all populations. Also, the VDR gene FokI variant was correlated with DR under the recessive (p = 0.016), the allelic (p = 0.001), and the dominant (p < 0.001) models in all populations. When compared with healthy controls, the VDR gene BsmI variant was associated with DR under the additive (p = 0.014), the allelic (p = 0.033), and the dominant (p < 0.001) models in Indian populations. Conclusions: The VDR gene BsmI, ApaI, and FokI gene variants are associated with DN and DR susceptibility. No association was found between the VDR gene TaqI gene variants and diabetic vascular complications.
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Affiliation(s)
- Na Song
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shikun Yang
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Yang-Yang Wang
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Shi-Qi Tang
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Ying-Qiu Zhu
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Qing Dai
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
| | - Hao Zhang
- Department of Nephrology, The Third Xiangya Hospital of Central South University, Changsha, China
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Pereira-Santos M, Carvalho GQ, Louro ID, Dos Santos DB, Oliveira AM. Polymorphism in the vitamin D receptor gene is associated with maternal vitamin D concentration and neonatal outcomes: A Brazilian cohort study. Am J Hum Biol 2019; 31:e23250. [PMID: 31070844 DOI: 10.1002/ajhb.23250] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Revised: 02/20/2019] [Accepted: 04/21/2019] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVES This study evaluated the associations between single-nucleotide polymorphisms (SNPs) of the vitamin D receptor (VDR) gene, maternal vitamin D concentration, and gestational outcomes. METHODS The cohort consisted of 270 pregnant women who received prenatal services at basic public healthcare centers in the city of Santo Antônio de Jesus, Bahia, Brazil. For statistical analysis, multiple linear regression was used. RESULTS A mean of 72.62 (SD = 31.51) nmol/L for 25-hydroxyvitamin D (25(OH)D) concentrations was found. The mean birth weight was 3.340 g (SD = 0.545 g), and the mean duration of gestation was 38.66 (SD = 1.83) weeks. Pregnant women who were homozygous for the low-frequency allele GG of SNP TaqI had a higher concentration of vitamin D during gestation (β = 14.09 nmol/L; 95% CI = 0.85, 27.34) than the higher frequency homozygotes AA (β = 3.33 nmol/L; 95% CI = -4.37, 11.05). The children of heterozygous women for the ApaI SNP (GA) were born with a lower weight (β = -131.99 g, 95% CI = -258.50, -5.47, P = .04). The heterozygote genotype of the SNP TaqI (CA) decreased the risk of short duration of gestation (β = 0.54 weeks, 95% CI = 0.09, 0.99, P = .01), and the homozygote for the lower frequency allele in the SNP ApaI (CC) showed a negative effect, decreasing the duration of gestation (β = -0.69 weeks, 95% CI = -1.35, -0.26, P = .04). CONCLUSIONS The VDR gene is an important genetic predictor of a higher concentration of vitamin D during gestation, low birth weight, and decreasing duration of gestation.
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Affiliation(s)
- Marcos Pereira-Santos
- Center of Biological and Health Sciences, Universidade Federal do Oeste da Bahia, Barreiras, Brazil.,Instituto de Saúde Coletiva, Universidade Federal da Bahia, Salvador, Bahia, Brazil
| | - Gisele Q Carvalho
- Campus Governador Valadares, Universidade Federal de Juiz de Fora, Minas Gerais, Brazil
| | - Iúri D Louro
- Departamento de Ciências Biológicas, Universidade Federal do Espírito Santo, Vitória, Brazil
| | - Djanilson B Dos Santos
- Center for Health Sciences, Universidade Federal do Recôncavo da Bahia, Santo Antônio de Jesus, Bahia, Brazil
| | - Ana M Oliveira
- School of Nutrition, Universidade Federal da Bahia, Salvador, Bahia, Brazil
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Rasoul MA, Haider MZ, Al-Mahdi M, Al-Kandari H, Dhaunsi GS. Relationship of four vitamin D receptor gene polymorphisms with type 1 diabetes mellitus susceptibility in Kuwaiti children. BMC Pediatr 2019; 19:71. [PMID: 30845908 PMCID: PMC6404350 DOI: 10.1186/s12887-019-1448-0] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2018] [Accepted: 03/01/2019] [Indexed: 12/17/2022] Open
Abstract
Background The incidence of type 1 diabetes mellitus (T1DM) in Kuwait is amongst the highest in the world. Vitamin D is considered to be involved in immune modulation and its deficiency contribute to autoimmune destruction of insulin producing beta cells in T1DM patients. Vitamin D has been shown to exert its effects via a nuclear vitamin D receptor (VDR) and therefore, VDR gene may be considered a candidate for T1DM susceptibility. Methods The genotypes of four VDR gene polymorphisms were determined in 253 Kuwaiti Arab T1DM patients and 214 healthy controls by PCR-RFLP analysis. Serum concentrations of three autoantibodies i.e. ICA (Islet cell autoantibody), GADA (Glutamic acid decarboxylase) and INS (Insulin autoantibody) were determined by radio-immunoassays. Results Statistically significant differences were detected between the genotypes of two VDR gene polymorphisms (FokI, C > T, rs10735810 and TaqI, C > T, rs731236) between T1DM patients and controls (P < 0.0001). In both, the frequency of variant alleles was considerably high in T1DM than in the controls. In contrast, the VDR gene ApaI (G > T, rs7975232) and BsmI (A > G, rs1544410) polymorphisms did not show association with T1DM. The homozygous variant genotypes of FokI, ApaI and TaqI polymorphisms show significant differences between various age-of-onset subgroups while no such association was detected in the case of BsmI polymorphism. Significant differences were also noted between heterozygous genotypes of all four polymorphisms especially between 4-6y and > 6y age-of-onset subgroups of T1DM patients. Three autoantibodies, ICA (Islet cell), GADA (glutamate decarboxylase) and INS (insulin) were positively associated to, varying degrees, with T1DM in Kuwaiti Arabs harboring different VDR gene polymorphism genotypes. Conclusions Our results demonstrate a significant effect of two VDR gene polymorphisms (FokI and TaqI) and three autoantibodies on genetic susceptibility of T1DM in Kuwaiti Arabs along with other factors.
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Affiliation(s)
- Majedah A Rasoul
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Mohammad Z Haider
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.
| | - Maria Al-Mahdi
- Department of Pediatrics, Adan Hospital, Al-Adan, Kuwait
| | - Hessa Al-Kandari
- Department of Pediatrics, Farwania Hospital, Farwania, Kuwait.,Family Medicine and Pediatric Unit, Dasman Diabetes Institute, Dasman, Kuwait
| | - Gursev S Dhaunsi
- Department of Pediatrics, Faculty of Medicine, Kuwait University, P.O. Box 24923, Safat-13110, Jabriya, Kuwait.,Medical Laboratories, Mubarak Al-Kabeer Hospital, Jabriya, Kuwait
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7
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Li B, Wang L, Lei L, Zhang M, Niu F, Chen P, Jin T. Genetic polymorphisms of pharmacogenomic VIP variants in the Lisu population of southwestern China: A cohort study. Medicine (Baltimore) 2018; 97:e12231. [PMID: 30235667 PMCID: PMC6160020 DOI: 10.1097/md.0000000000012231] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2018] [Accepted: 08/14/2018] [Indexed: 11/26/2022] Open
Abstract
Pharmacogenomic studies of different ethnic or racial groups have been used to develop personalized therapies specific to subjects. This study aimed to identify the distribution differences of very important pharmacogenetic (VIP) variants between the Lisu population from southwestern China and other ethnic groups.Eighty VIP variants in 37 genes were selected from the pharmacogenomic knowledge base (PharmGKB), and compared with genotype data of the Lisu population then compared with other 11 populations from the HapMap dataset and previously published data including Miao, Li, Deng, Sherpa, Lhoba, Tibetan, Kirghiz, Tajik, Mongol, Shaanxi Han ethnic, and Uygur populations.VDR rs1540339, MTHFR rs1801131, P2RY1 rs701265, and PTGS2 rs689466 were significantly different between Lisu and 11 HapMap populations. ANKK1 rs1800497 was the least statistical significant locus among selected single nucleotide polymorphisms. In addition, genetic background of Lisu was strongly closest to Shaanxi Han ethnic cohort, and followed by Chinese in metropolitan Denver population based on population structure and F-statistics analyses.Our results showed significant interethnic differences between Lisu and other populations, which will give useful information for prospective studies and better individualized treatments.
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Affiliation(s)
- Bin Li
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
| | - Li Wang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
| | - Lingyu Lei
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
| | - Mingxiang Zhang
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
| | - Fanglin Niu
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
| | - Peng Chen
- Institution of Basic Medical Science, Xi’an Medical University, Xi’an
| | - Tianbo Jin
- Key Laboratory of Resource Biology and Biotechnology in Western China (Northwest University), Ministry of Education
- Key Laboratory of Molecular Mechanism and Intervention Research for Plateau Diseases of Tibet Autonomous Region
- Key Laboratory of High Altitude Environment and Genes Related to Diseases of Tibet Autonomous Region
- Key Laboratory for Basic Life Science Research of Tibet Autonomous Region, School of Medicine, Xizang Minzu University, Xianyang, Shaanxi, China
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Zhang C, Guo W, Cheng Y, Chen W, Yang X, Dai R, Yan M, Li Q. WITHDRAWN: Genetic polymorphisms of pharmacogenomic VIP variants in the Wa population from southwest China. Drug Metab Pharmacokinet 2018. [DOI: 10.1016/j.dmpk.2018.06.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Canine Leishmaniasis Progression is Associated with Vitamin D Deficiency. Sci Rep 2017; 7:3346. [PMID: 28611427 PMCID: PMC5469782 DOI: 10.1038/s41598-017-03662-4] [Citation(s) in RCA: 29] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/11/2016] [Accepted: 05/03/2017] [Indexed: 12/13/2022] Open
Abstract
The relationship between vitamin D deficiency and the risk of suffering from a plethora of health disorders, ranging from autoimmune processes to infectious diseases has been widely described. Nonetheless, the potential role of vitamin D in visceral leishmaniasis remains uncharacterized. In the Mediterranean basin, where the dog is leishmania’s main peri-domestic reservoir, control measures against the canine disease have shown beneficial effects on the incidence of human leishmaniasis. In this study, we measured the vitamin D levels in serum samples from a cohort of 68 healthy and disease dogs from a highly endemic area and we have also studied the relationship of these levels with parasitological and immunological parameters. The sick dogs presented significantly lower (P < 0.001) vitamin D levels (19.6 ng/mL) than their non-infected (31.8 ng/mL) and the asymptomatic counterparts (29.6 ng/mL). In addition, vitamin D deficiency correlated with several parameters linked to leishmaniasis progression. However, there was no correlation between vitamin D levels and the Leishmania-specific cellular immune response. Moreover, both the leishmanin skin test and the IFN-γ levels displayed negative correlations with serological, parasitological and clinical signs. Further studies to determine the functional role of vitamin D on the progression and control of canine leishmaniasis are needed.
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Penna-Martinez M, Badenhoop K. Inherited Variation in Vitamin D Genes and Type 1 Diabetes Predisposition. Genes (Basel) 2017; 8:genes8040125. [PMID: 28425954 PMCID: PMC5406872 DOI: 10.3390/genes8040125] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2017] [Revised: 04/11/2017] [Accepted: 04/12/2017] [Indexed: 12/17/2022] Open
Abstract
The etiology and pathophysiology of type 1 diabetes remain largely elusive with no established concepts for a causal therapy. Efforts to clarify genetic susceptibility and screening for environmental factors have identified the vitamin D system as a contributory pathway that is potentially correctable. This review aims at compiling all genetic studies addressing the vitamin D system in type 1 diabetes. Herein, association studies with case control cohorts are presented as well as family investigations with transmission tests, meta-analyses and intervention trials. Additionally, rare examples of inborn errors of vitamin D metabolism manifesting with type 1 diabetes and their immune status are discussed. We find a majority of association studies confirming a predisposing role for vitamin D receptor (VDR) polymorphisms and those of the vitamin D metabolism, particularly the CYP27B1 gene encoding the main enzyme for vitamin D activation. Associations, however, are tenuous in relation to the ethnic background of the studied populations. Intervention trials identify the specific requirements of adequate vitamin D doses to achieve vitamin D sufficiency. Preliminary evidence suggests that doses may need to be individualized in order to achieve target effects due to pharmacogenomic variation.
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Affiliation(s)
- Marissa Penna-Martinez
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine 1, University Hospital Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany.
| | - Klaus Badenhoop
- Division of Endocrinology, Diabetes and Metabolism, Department of Medicine 1, University Hospital Frankfurt, Theodor-Stern-Kai 7, D-60590 Frankfurt am Main, Germany.
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Kamal A, Gamal SM, Elgengehy FT, Alkemary AK, Siam I. Association of VDR ApaI and TaqI Gene Polymorphisms with the Risk of Scleroderma and Behçet’s Disease. Immunol Invest 2016; 45:531-42. [DOI: 10.1080/08820139.2016.1180302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Affiliation(s)
- Asmaa Kamal
- Department of Clinical & Chemical Pathology, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Sherif M. Gamal
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, Cairo, Egypt
| | - Fatema T. Elgengehy
- Department of Rheumatology and Rehabilitation, Faculty of Medicine, Cairo University, Cairo, Egypt
| | | | - Ibrahem Siam
- Internal Medicine Department, National Research Center, Cairo, Egypt
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12
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Goswami R, Kaplan MH. Essential vitamins for an effective T cell response. World J Immunol 2016; 6:39-59. [DOI: 10.5411/wji.v6.i1.39] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Revised: 10/07/2015] [Accepted: 11/25/2015] [Indexed: 02/06/2023] Open
Abstract
Effective adaptive immune responses rely upon appropriate activation of T cells by antigenic peptide-major histocompatibility complex on the surface of antigen presenting cells (APCs). Activation relies on additional signals including co-stimulatory molecules on the surface of the APCs that promote T cell expansion. The immune response is further sculpted by the cytokine environment. However, T cells also respond to other environmental signals including hormones, neurotransmitters, and vitamins. In this review, we summarize the mechanisms through which vitamins A and D impact immune responses, particularly in the context of T cell responses.
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Ding Y, He P, He N, Li Q, Sun J, Yao J, Yi S, Xu H, Wu D, Wang X, Jin T. Genetic polymorphisms of pharmacogenomic VIP variants in Li nationality of southern China. ENVIRONMENTAL TOXICOLOGY AND PHARMACOLOGY 2016; 42:237-242. [PMID: 26901752 DOI: 10.1016/j.etap.2016.02.003] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/02/2015] [Revised: 01/29/2016] [Accepted: 02/02/2016] [Indexed: 06/05/2023]
Abstract
OBJECTIVES The present study aimed to screen members of the Li nationality in southern China for genotype frequencies of VIP variants and to determine differences between the Li ethnicity and global human population samples in HapMap. METHODS In this study, we genotyped 77 very important pharmacogenetic (VIP) variants selected from the pharmacogenomics knowledge base (PharmGKB) in members of the Li population and compared our data with other eleven populations from the HapMap data set. RESULTS Our results showed that VDR rs1540339, VKORC1 rs9934438, and MTHFR rs1801133 were most different in Li compared with most of the eleven populations from the HapMap data set. Furthermore, population structure and F-statistics (Fst) analysis also showed differences between the Li and other HapMap populations, and the results suggest that the Li are most genetically similar to the CHD population, and the least similar to the YRI in HapMap. CONCLUSIONS The findings of our study complement the pharmacogenomics database with information on members of the Li ethnicity and provide a stronger scientific basis for safer drug administration, which may help clinicians to predict individual drug responses, thereby avoiding the risk of adverse effects and optimizing efficacy in this population.
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Affiliation(s)
- Yipeng Ding
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China.
| | - Ping He
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Na He
- School of Medicine, Xizang Minzu University, Xianyang, Shaanxi 712082, China; National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China
| | - Quanni Li
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Juan Sun
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Jinjian Yao
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Shengyang Yi
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Heping Xu
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Duoyi Wu
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Xiang Wang
- Department of Emergency, People's Hospital of Hainan Province, Haikou, Hainan 570311, China
| | - Tianbo Jin
- School of Medicine, Xizang Minzu University, Xianyang, Shaanxi 712082, China; National Engineering Research Center for Miniaturized Detection Systems, Xi'an 710069, China; School of Life Sciences, Northwest University, Xi'an, Shaanxi 710069, China.
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Vitamin D receptor polymorphisms and expression profile in rheumatoid arthritis Brazilian patients. Mol Biol Rep 2015; 43:41-51. [PMID: 26686848 DOI: 10.1007/s11033-015-3937-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Accepted: 12/12/2015] [Indexed: 12/25/2022]
Abstract
Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation and important joint commitment, being the most common systemic autoimmune disease worldwide. RA displays important genetic background with a variety of genes contributing to the immune balance breakdown. Recent studies have demonstrated that vitamin D, through its receptor (VDR), is able to regulate the immune balance and suppress the autoimmunity process, being a potential target in autoimmune diseases. In the present genetic association study, we assessed 5 Tag single nucleotide polymorphisms (SNPs) (rs11168268, rs2248098, rs1540339, rs4760648 and rs3890733), which cover most of the VDR gene, in three different Brazilian populations (from Northeast, Southeast and South Brazil). We also evaluated the VDR expression profile in whole blood and monocytes from RA patients. For genotyping study, 428 RA patients and 616 healthy controls were genotyped with fluorogenic allele specific probes on an ABI7500 platform. For gene expression study, VDR mRNA levels of 15 RA patients and 26 healthy individuals were assessed by RT-PCR. Our results showed that SNPs rs4760648 and rs3890733 are associated to RA susceptibility (p value = 0.0026, OR 1.31 and p value = 0.0091, OR 1.28 with statistical power = 0.999 and 0.993, respectively). Regarding RA clinical features, the studied SNPs did not show significant associations. The gene expression assays showed that VDR mRNA levels were down regulated in both whole blood (-3.3 fold) and monocytes (-3.2 fold) of RA patients when compared to healthy controls. Our results, the first reported for distinct Brazilian populations, support a role of the VDR gene in the susceptibility to RA.
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The Role of Vitamin D in Diabetes and Cardiovascular Disease: An Updated Review of the Literature. DISEASE MARKERS 2015; 2015:580474. [PMID: 26576069 PMCID: PMC4630385 DOI: 10.1155/2015/580474] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 06/21/2015] [Revised: 09/22/2015] [Accepted: 09/29/2015] [Indexed: 02/06/2023]
Abstract
The dietary reference values for Vitamin D were set primarily considering its role in bone health, but with the discovery of Vitamin D receptors throughout body tissues, new links with other health conditions are now studied, such as for diabetes and cardiovascular diseases (CVD). This paper shall analyze and examine all new research studies carried out, especially in 2013–2015 regarding diabetes mellitus (DM) and cardiovascular diseases (CVD). Vast research has been carried out to establish strong relationship between Vitamin D serum levels, supplementation, diabetes, and CVD. However, the results from researches identified in this paper are disputable. Benefits of Vitamin D adequate levels were recognized from gestational period until later in disease development such as diabetes and/or CVD, but since not all studies are in agreement further investigation is suggested. Researches conducting large randomized controlled trials, exploring range of supplement doses, with variable baseline serum Vitamin D levels, and inclusion of array of associated parameters, are still required to conduct large-scale analysis and draw conclusion as a risk factor. Until then it is possible to conclude that maintenance of serum Vitamin D levels holds advantageous aspects in diabetic and cardiovascular conditions, and people should strive to attain them.
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Liu SG, Li YY, Sun RX, Wang JL, Li XD, Han L, Chu N, Li CG. Polymorphisms in the vitamin D receptor and risk of gout in Chinese Han male population. Rheumatol Int 2014; 35:963-71. [DOI: 10.1007/s00296-014-3167-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2014] [Accepted: 10/27/2014] [Indexed: 12/13/2022]
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Tizaoui K, Kaabachi W, Hamzaoui A, Hamzaoui K. Contribution of VDR polymorphisms to type 1 diabetes susceptibility: Systematic review of case-control studies and meta-analysis. J Steroid Biochem Mol Biol 2014; 143:240-9. [PMID: 24742873 DOI: 10.1016/j.jsbmb.2014.03.011] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/30/2013] [Revised: 03/11/2014] [Accepted: 03/25/2014] [Indexed: 12/29/2022]
Abstract
Vitamin D receptor (VDR) polymorphisms have been inconsistently investigated in type 1 diabetes (T1D). However, the results are inconsistent and inconclusive. The current study aimed to investigate the role of TaqI, BsmI, ApaI and FokI VDR polymorphisms in T1D disease. Following the Preferred Reporting Items for Systematic Reviews and Meta-analyses (PRISMA) guidelines, a systematic search and meta-analysis of the literature, since 1998 until december 2013, was conducted. Subgroup analyses were performed to detect potential sources of heterogeneity from selected study characteristics. Meta-analyses yielded a non-significant association of TaqI polymorphism with T1D [OR=1.014 (0.783-1.312); P=0.918] in the recessive model. The BsmI polymorphism was not associated with T1D [OR=1.44 (0.944-1.386); P=0.171] in the dominant model. Also, ApaI polymorphism was not associated with T1D risk [OR=0.996 (0.859-1.155); P=0.960] in the homozygous model. The FokI polymorphism was not associated with T1D risk [OR=0.968 (0.743-1.263); P=0.813] in dominant model. Stratification according to study characteristics showed that publication year, age, gender, estimated vitamin D levels and latitude moderated significantly association between VDR polymorphisms and T1D disease. Meta-analysis on haplotypes revealed that BAT might be a significant risk factor for T1D [OR=1.331 (0.957-1.850; P=0.089]. However, the bAT was found to be a significant protective factor [OR=0.639 (0.460-0.887); P=0.007]. As conclusion, individual VDR polymorphisms seemed not to be associated with T1D risk. However, haplotypes contributed significantly to disease susceptibility. Study characteristics moderated the association between VDR polymorphisms and T1D. These results suggested that, in T1D pathogenesis, VDR polymorphisms interact with each other and with environmental factors.
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Affiliation(s)
- Kalthoum Tizaoui
- Tunis El Manar University, Faculty of Medicine Tunis, Division of Histology and Immunology Department of Basic Sciences, 15 Rue Djebel Lakdar, 1007 Tunis, Tunisia.
| | - Wajih Kaabachi
- Tunis El Manar University, Faculty of Medicine Tunis, Division of Histology and Immunology Department of Basic Sciences, 15 Rue Djebel Lakdar, 1007 Tunis, Tunisia
| | - Agnès Hamzaoui
- Tunis El Manar University, Faculty of Medicine Tunis, Division of Histology and Immunology Department of Basic Sciences, 15 Rue Djebel Lakdar, 1007 Tunis, Tunisia; Abderrahmane Mami Hospital, Pediatric Pneumology Pavillon B Ariana, Tunisia
| | - Kamel Hamzaoui
- Tunis El Manar University, Faculty of Medicine Tunis, Division of Histology and Immunology Department of Basic Sciences, 15 Rue Djebel Lakdar, 1007 Tunis, Tunisia
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