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Daryabor G, Gholijani N, Kahmini FR. A review of the critical role of vitamin D axis on the immune system. Exp Mol Pathol 2023; 132-133:104866. [PMID: 37572961 DOI: 10.1016/j.yexmp.2023.104866] [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: 02/07/2023] [Revised: 08/05/2023] [Accepted: 08/08/2023] [Indexed: 08/14/2023]
Abstract
In recent years, the physiological and molecular functions of vitamin D (Vit-D) have been deeply investigated. At first, Vit-D was considered a regulator of mineral and skeletal homeostasis. However, due to the extensive-expression pattern of Vit-D receptor (VDR) in almost every non-skeletal cell, Vit-D is considered mainly a multifunctional agent with broad effects on various tissues, notably the immune system. The expression of VDR in immune cells such as dendritic cells, monocyte/macrophage, neutrophils, B cells and T cells has been well demonstrated. Besides, such immune cells are capable of metabolizing the active form of Vit-D which means that it can module the immune system in both paracrine and autocrine manners. Vit-D binding protein (DBP), that regulates the levels and homeostasis of Vit-D, is another key molecule capable of modulating the immune system. Recent studies indicate that dysregulation of Vit-D axis, variations in the DBP and VDR genes, and Vit-D levels might be risk factors for the development of autoimmune disease. Here, the current evidence regarding the role of Vit-D axis on the immune system, as well as its role in the development of autoimmune disease will be clarified. Further insight will be given to those studies that investigated the association between single nucleotide polymorphisms of DBP and VDR genes with autoimmune disease susceptibility.
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Affiliation(s)
- Gholamreza Daryabor
- Autoimmune Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Nasser Gholijani
- Autoimmune Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran
| | - Fatemeh Rezaei Kahmini
- Autoimmune Diseases Research Center, School of Medicine, Shiraz University of Medical Sciences, Shiraz, Iran; Department of Immunology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran.
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Zhou H, Zhou BY, Liang SR, Li M, Zhao J. The relationship between vitamin D receptor gene polymorphisms and ankylosing spondylitis: a systematic review, meta-analysis and trial sequential analysis. Rheumatol Int 2023; 43:21-32. [PMID: 35999389 DOI: 10.1007/s00296-022-05189-y] [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: 06/13/2022] [Accepted: 08/12/2022] [Indexed: 02/02/2023]
Abstract
The relation between vitamin D receptor (VDR) gene polymorphisms and ankylosing spondylitis (AS) remains unclear. A systematic review and meta-analysis were conducted using six databases, including PubMed, Web of Science, EMBASE, CNKI, Wanfang and Cochrane Library. The selection of each study was based on inclusion and exclusion criteria. The Newcastle-Ottawa Scale was applied to assess the quality of the included studies, while the strength was evaluated by odds ratios and 95% confidence intervals. The following contrasts were used: allele contrast (H vs h), homozygous contrast (HH vs hh), heterozygous contrast (Hh vs hh), dominant contrast (HH + Hh vs hh) and recessive contrast (HH vs Hh + hh). For the BsmI-rs1544410 polymorphism, three studies were included of 782 cases and 863 controls. The data showed a significant relationship under allele contrast H vs h (OR = 1.66, 95% CI 1.20-2.30 (P = 0.002)). For the TaqI-rs731236 polymorphism, 675 cases and 697 controls were included in two studies. The data showed a significant relationship under allele contrast H vs h (OR = 1.57, 95% CI 1.11-2.21 (P < 0.05)), homozygous contrast Hh vs hh (OR = 1.65, 95% CI 1.12-2.43 (P < 0.05)), and recessive contrast HH + Hh vs hh (OR = 1.66, 95% CI 1.13-2.43 (P < 0.05)). There were significant relationships between VDR gene BsmI-rs1544410 and TaqI-rs731236 polymorphisms and AS, while no associations were found between FokI-rs2228570 and ApaI-rs7975232 polymorphisms and AS. In the future, additional studies with larger case numbers are need.
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Affiliation(s)
- Hang Zhou
- Department of Rheumatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Bo-Yang Zhou
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Su-Rong Liang
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Min Li
- Clinical Epidemiology and Evidence-Based Medicine Center, Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | - Jian Zhao
- Department of Dermatology, Beijing Friendship Hospital, Capital Medical University, Beijing, China.
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VDR Polymorphic Variants Are Related to Improvements in CRP and Disease Activity in Patients with Axial Spondyloarthritis That Undergo Anti-TNF Treatment. Genes (Basel) 2022; 13:genes13101873. [PMID: 36292758 PMCID: PMC9601285 DOI: 10.3390/genes13101873] [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: 09/06/2022] [Revised: 10/06/2022] [Accepted: 10/12/2022] [Indexed: 11/04/2022] Open
Abstract
Vitamin D deficiency is related with susceptibility or progression of various autoimmune diseases. The aim of the study was to assess potential relations between single nucleotide polymorphisms (SNPs) in the vitamin D receptor-coding gene (VDR): rs1544410 (BsmI), rs2228570 (FokI), rs731236 (TaqI), rs7975232 (ApaI), and disease activity in patients with axial spondyloarthritis (axSpA) undergoing anti-TNF therapy. The VDR rs731236 CT genotype was statistically more common among female patients (p = 0.027). An improvement of CRP equal to or higher than 50% after 3 months of anti-TNF therapy was observed for rs2228570 T allele (p = 0.002). After 6 months, CRP improvement equal to or higher than 75% was related to presence of the rs1544410 AA genotype (p = 0.027) and the rs731236 CC homozygotes (p = 0.047). Baseline BASDAI values were lower in individuals with the rs2228570 TT genotype (p = 0.036) and rs7975232 C allele (p = 0.029). After 6 months of treatment, lower BASDAI values were observed in AC heterozygotes (p = 0.005). The same AC genotype was more frequently detected in patients with remission (BASDAI ≤ 2) (p = 0.001) and in those achieving BASDAI improvement equal to or higher than 75% (p = 0.006). In conclusion, VDR SNPs were found to relate to CRP and BASDAI values at different time points of anti-TNF therapy.
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Diao M, Peng J, Wang D, Wang H. Peripheral vitamin D levels in ankylosing spondylitis: A systematic review and meta-analysis. Front Med (Lausanne) 2022; 9:972586. [PMID: 36091702 PMCID: PMC9458854 DOI: 10.3389/fmed.2022.972586] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2022] [Accepted: 08/05/2022] [Indexed: 11/17/2022] Open
Abstract
Objectives Previous studies showed conflicting results regarding peripheral vitamin D levels in ankylosing spondylitis (AS). We performed this systemic review and meta-analysis to explore whether vitamin D may influence AS process. Methods Articles published until March 2022 were searched in databases as follows: PubMed, Web of Science, and Google Scholar. The present study included cross-sectional and case-control studies regarding vitamin D levels in patients with AS. Studies were excluded according to the following exclusion criteria: (1) we excluded studies which did not provide sufficient information regarding the comparison of vitamin D levels in AS patients and healthy controls (HC). Vitamin D levels in the two group studies should be reported or could be calculated in included studies; (2) meta-analysis, reviews and case reports. STATA 12.0 software was used to make a meta-analysis. Standard mean differences (SMDs) and 95% confidence intervals (CIs) were computed as effect size. Results The present meta-analysis showed no significant difference in peripheral 1,25-dihydroxyvitamin D3 (1,25OHD) levels between AS and healthy controls (HCs) in Caucasians with a random effects model [SMD: −0.68, 95% CI (−1.90, 0.54)]. Patients with AS had lower peripheral 25-hydroxyvitamin D (25OHD) levels compared with HC with a random effects model [SMD: −0.45, 95% CI: (−0.70, −0.20)]. Patients with AS had higher peripheral C-reactive protein (CRP) and erythrocyte sedimentation rate (ESR) levels compared with HC in Caucasian population with random effects models [CRP: SMD: 1.08, 95% CI: (0.78, 1.37); ESR: SMD: 0.86, 95% CI: (0.39, 1.34)]. However, no significant difference in alkaline phosphatase (ALP), parathyroid hormone (PTH) or calcium levels were indicated between AS and HC in Caucasian with random effects models [ALP: SMD: 0.07, 95% CI: (−0.41, 0.55); PTH: SMD: −0.15, 95% CI: (−0.56, 0.26); calcium: SMD: −0.06, 95% CI: (−0.39, 0.26)]. Conclusion In conclusion, the study showed an inverse association between 25OHD and AS, which suggests that vitamin D may have a protective effect on AS. ESR and C-reactive protein (CRP) are important biomarkers for AS.
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Li Y, Qi W, Shi Y. miR‑150‑5p inhibits osteogenic differentiation of fibroblasts in ankylosing spondylitis by targeting VDR. Exp Ther Med 2022; 23:283. [PMID: 35317439 PMCID: PMC8908459 DOI: 10.3892/etm.2022.11213] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2020] [Accepted: 12/16/2021] [Indexed: 11/05/2022] Open
Abstract
Dysregulated microRNAs (miRNAs or miRs) serve potential roles in inflammatory systemic disease, including ankylosing spondylitis (AS). The aim of the present study was to investigate the potential function of miR-150-5p in osteogenic differentiation of AS fibroblasts and its underlying mechanism. The expression of miR-150-5p and vitamin D receptor (VDR) in AS joint capsules and fibroblasts was detected by reverse transcription-quantitative (RT-q)PCR and western blotting. Following overexpression of miR-150-5p, the alteration in osteogenic gene expression was detected by RT-qPCR, western blotting and alkaline phosphatase activity assay, as well as alizarin red staining. The association between miR-150-5p and VDR was confirmed by luciferase assay and rescue experiments were performed. Patients with AS exhibited decreased expression of miR-150-5p in joint capsules. Treatment with bone morphogenic protein 2 (BMP-2) and transforming growth factor-β1 (TGF-β1) led to downregulation of miR-150-5p in AS fibroblasts. Enforced expression of miR-150-5p attenuated osteogenic differentiation of AS fibroblasts. These results demonstrated that miR-150-5p inhibited osteogenic differentiation of AS fibroblasts by targeting VDR. miR-150-5p overexpression decreased osteogenic transformation of fibroblasts by decreasing VDR expression in AS.
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Affiliation(s)
- Yuan Li
- Department of Rheumatology and Immunology, Tianjin First Central Hospital, Tianjin 300192, P.R. China
| | - Wufang Qi
- Department of Rheumatology and Immunology, Tianjin First Central Hospital, Tianjin 300192, P.R. China
| | - Yuquan Shi
- Department of Rheumatology and Immunology, Tianjin First Central Hospital, Tianjin 300192, P.R. China
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Association of methylation level and transcript level in TRAF5 gene with ankylosing spondylitis: a case-control study. Genes Immun 2021; 22:101-107. [PMID: 34021268 DOI: 10.1038/s41435-021-00135-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2021] [Revised: 04/27/2021] [Accepted: 05/10/2021] [Indexed: 02/04/2023]
Abstract
To explore the association between methylation level and transcript level of TNF receptor-associated factor 5 (TRAF5) gene with ankylosing spondylitis (AS) in Chinese Han population. Methylation and mRNA expression level of the TRAF5 gene were tested in 98 patients and 98 healthy controls. Among the 21 CpG sites, methylation levels at eight sites were significantly different between AS patients and healthy controls. However, only three sites remained significantly different after the correction by the Benjamini-Hochberg method. Compared with controls, the CpG island of TRAF5 gene promoter was highly methylated in AS patients, and the relative mRNA expression level of TRAF5 was significantly reduced in AS patients. And the mRNA level was negatively correlated with the methylation level of TRAF5 gene in AS patients (rs = -0.453, P < 0.001). Subgroup analyses indicated that there was no significant difference in the level of methylation between groups of different status of HLA-B27 and medications in AS patients. Multiple linear regression showed that disease-modifying antirheumatic drugs could reduce methylation levels of AS patients after adjusting for the effects of other drugs. In conclusion, the hypermethylation of the TRAF5 might contribute to the pathogenesis of AS, but many open questions remain.
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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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8
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Santos RCD, Pinho RCM, Cimões R. Chronic Periodontitis in Patients with Type 2 Diabetes: Analysis of the FokI Polymorphism and Perception of Quality of Life. PESQUISA BRASILEIRA EM ODONTOPEDIATRIA E CLÍNICA INTEGRADA 2020. [DOI: 10.1590/pboci.2020.149] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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H19 Increases IL-17A/IL-23 Releases via Regulating VDR by Interacting with miR675-5p/miR22-5p in Ankylosing Spondylitis. MOLECULAR THERAPY-NUCLEIC ACIDS 2019; 19:393-404. [PMID: 31887550 PMCID: PMC6938967 DOI: 10.1016/j.omtn.2019.11.025] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/11/2019] [Revised: 11/03/2019] [Accepted: 11/22/2019] [Indexed: 01/01/2023]
Abstract
Long non-coding RNA (lncRNA) H19 is associated with inflammatory diseases, but the molecular mechanism of H19 in the inflammatory process of ankylosing spondylitis (AS) is unclear. Here, we investigated the role of H19 and its downstream molecules in the inflammation of AS by microarray analysis, qRT-PCR, western blot, and dual-luciferase reporter assay. H19 small interfering RNA (siRNA) (Si-H19) and adenovirus (AD-H19) were used to decrease and increase H19 expression, respectively. 42 annotated lncRNAs were identified, and H19 was overexpressed. H19, vitamin D receptor (VDR), and transforming growth factor β (TGF-β) can bind to microRNA22-5p (miR22-5p) and miR675-5p. Si-H19 significantly downregulated miR22-5p and upregulated miR675-5p expression; Si-H19 decreased the protein and mRNA expression of VDR and decreased the cytokine and mRNA levels of interleukin-17A (IL-17A) and IL-23. These results were verified by AD-H19. In addition, miR22-5p and miR675-5p inhibitors increased the protein and mRNA expression of VDR and increased the cytokine and mRNA levels of IL-17A and IL-23. These results were also confirmed by miRNA mimics. Furthermore, H19 directly interfered with miR22-5p and miR675-5p expression, whereas the two miRNAs directly inhibited VDR expression. Overall, the H19-miR22-5p/miR675-5p-VDR-IL-17A/IL-23 signaling pathways have important roles in the pathogenesis of AS.
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Liu R, Zhang X, Jiang G, Ma Y, Yang J, Wu M, Han R, Chen M, Yuan Y, Hu X, Pan M, Xu S, Xu J, Shuai Z, Zou Y, Pan G, Pan F. Gene-gene interaction and association of Wnt/Β-catenin signalling pathway gene polymorphisms with ankylosing spondylitis susceptibility in the Chinese Han population. Autoimmunity 2019; 52:281-288. [PMID: 31656088 DOI: 10.1080/08916934.2019.1681984] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Objectives: To explore the genetic interaction between Wnt/β-catenin signalling pathway genes and ankylosing spondylitis (AS) in the Chinese population.Methods: Six single-nucleotide polymorphisms (SNPs) in DKK1, LRP5, LRP6, and SOST genes were genotyped in 673 AS patients and 687 healthy controls by using SNPs can Technic. Single marker genetic association analysis was performed. Haplotypes were constructed after linkage disequilibrium analysis; additive, multiplicative, and higher-order interactions were analysed.Results: The DKK1 gene rs1569198 polymorphism was significantly associated with AS susceptibility in females (χ2 = 4.55, p = .03), but the association disappeared after Bonferroni correction. Moreover, a haplotype (T-G) in the DKK1 gene showed a protective role in AS susceptibility in females (p = .04). Significant additive interactions were observed between DKK1: rs1896368 and LRP5: rs3736228, relative excess risk due to interaction (RERI) = 0.40, 95% CI = 0.08 - 0.71; attributable proportion due to interaction (AP) = 51%, 95% CI = 0.07 - 0.94, DKK1: rs1569198 and LRP5: rs3736228 (RERI = 0.49, 95% CI = 0.12 - 0.86; AP = 49%, 95% CI = 0.17 - 0.82), LRP5: rs3736228 and SOST: rs4792909 (RERI = 0.33, 95% CI = 0.002 - 0.65; AP = 41%, 95% CI = 0.01 - 0.81) in the dominant model.Conclusions: Our research implies a potential gene-gene interaction, thus revealing the importance of the Wnt/β-catenin signalling pathway for understanding the genetic architecture of AS.
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Affiliation(s)
- Rui Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,Department of Medical Administration, The Second Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Xu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Guangming Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Jiajia Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Meng Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Renfang Han
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Mengya Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Yaping Yuan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Xingxing Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Meijuan Pan
- Department of Rheumatism and Immunity, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Jianhua Xu
- Department of Rheumatism and Immunity, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Zongwen Shuai
- Department of Rheumatism and Immunity, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China
| | - Yanfeng Zou
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Guixia Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, Anhui, China
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Vitamin D receptor expression in peripheral blood mononuclear cells is inversely associated with disease activity and inflammation in lupus patients. Clin Rheumatol 2019; 38:2509-2518. [PMID: 31104216 DOI: 10.1007/s10067-019-04594-2] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2018] [Revised: 04/23/2019] [Accepted: 05/06/2019] [Indexed: 12/27/2022]
Abstract
OBJECTIVE Systemic lupus erythematosus (SLE) is characterized by uncontrolled production of pro-inflammatory cytokines. Vitamin D receptor (VDR) has potent anti-inflammatory activities. The aim of this study was to examine the correlation between VDR expression and inflammation and disease activity in patients with SLE. METHODS Ninety-five SLE patients were recruited and divided into two groups, active and inactive, according to their SLE disease activity index (SLEDAI)-2 K, and 40 healthy individuals served as controls. The expression of VDR and NF-κB p65 in peripheral blood mononuclear cells (PBMCs) was determined by quantitative RT-PCR and Western blotting. VDR expression was correlated with inflammatory and diseases parameters in SLE patients. VDR regulation was also studied in THP-1 and Jurkat cell lines. RESULTS PBMC VDR expression was downregulated in SLE patients, especially in the active SLE group. VDR mRNA levels were negatively correlated with SLEDAI-2 K (r = - 0.348, P = 0.001), Systemic Lupus International Collaborating Clinics (SLICC) renal activity scores (r = - 0.346, P = 0.014), and proteinuria (r = - 0.309, P = 0.002) and positively associated with serum complement C3 levels (r = 0.316, P = 0.002). Multiple stepwise regression analysis indicated that PBMC VDR downregulation was an independent risk factor for SLEDAI-2 K. VDR levels were also negatively correlated with NF-κB p65 (r = - 0.339, P = 0.001), TNF-α (r = - 0.268, P = 0.009), and IL-6 (r = - 0.313, P = 0.002) levels. In monocyte and T lymphocyte cell lines, TNF-α suppressed VDR expression, whereas 1,25-dihydroxyvitamin D blocked TNF-α-induced VDR downregulation. CONCLUSION PBMC VDR expression is inversely associated with disease activity and inflammation in SLE patients, and VDR downregulation is likely driven by inflammation.
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Pan Z, Zhang X, Ma Y, Xu S, Shuai Z, Pan F, Sun G. Genetic variation of rs7958311 in P2X7R gene is associated with the susceptibility and disease activity of ankylosing spondylitis. Postgrad Med J 2019; 95:251-257. [PMID: 30992418 DOI: 10.1136/postgradmedj-2018-136036] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Revised: 02/05/2019] [Accepted: 03/12/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVES To describe association between the genetic variation of inflammation-associated gene, P2X7R, and ankylosing spondylitis (AS) susceptibility. METHODS Four single nucleotide polymorphisms (SNPs) of P2 X 7 R gene were genotyped in 673 patients with AS and 687 healthy controls. Allele and genotype frequencies and different genetic models were performed to calculate ORs and 95% CIs, the demographic and clinical characteristics of patients were recorded. The data analyses were also conducted by sex. RESULTS Compared with controls, genetic variation in rs7958311 but not the other three SNPs was statistically significant in female patients (χ2=6.907, p=0.032). Specifically, the P2 X 7 R gene rs7958311 polymorphism A allele showed a protective effect in AS susceptibility (OR=0.704, p=0.049, pFDR=0.061). In addition, female individuals with GA and/or AA genotypes had a lower risk of having AS compared with those with GG genotype (GA vs GG: OR=0.446, p=0.012, pFDR=0.030; AA vs GG: OR=0.440, p=0.039, pFDR=0.061; GA/AA vs GG: OR=0.445, p=0.009, pFDR=0.030). Furthermore, individuals with A allele (ie, GA/AA vs GG) had a higher disease activity, including Bath Ankylosing Spondylitis Disease Activity Index (overall: Z=- 2.630, p=0.014; male: Z=- 2.243, p=0.025), Schober test (overall: Z=- 3.041, p<0.001; male: Z=- 2.243, p=0.025) and chest expansion (overall: Z=- 3.895, p=0.004; male: Z=- 2.403, p=0.016). CONCLUSION The allelic variation of rs7958311 SNP in P2X7R gene may have a protective effect on AS susceptibility in females and is associated with disease activity in male patients.
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Affiliation(s)
- Zhipeng Pan
- Department of Medical Oncology, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.,School of Public Health, The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, China
| | - Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China.,School of Public Health, The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Zongwen Shuai
- Department of Rheumatism and Immunity, First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, China .,School of Public Health, The Key Laboratory of Major Autoimmune Diseases, Anhui Medical University, Hefei, China
| | - Guoping Sun
- Department of Medical Oncology, First Affiliated Hospital of Anhui Medical University, Hefei, China
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13
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Pytel V, Matías-Guiu JA, Torre-Fuentes L, Montero-Escribano P, Maietta P, Botet J, Álvarez S, Gómez-Pinedo U, Matías-Guiu J. Exonic variants of genes related to the vitamin D signaling pathway in the families of familial multiple sclerosis using whole-exome next generation sequencing. Brain Behav 2019; 9:e01272. [PMID: 30900415 PMCID: PMC6456803 DOI: 10.1002/brb3.1272] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/03/2019] [Revised: 02/27/2019] [Accepted: 03/06/2019] [Indexed: 12/12/2022] Open
Abstract
INTRODUCTION Vitamin D (VD) deficiency has been associated with multiple sclerosis (MS) and other autoimmune diseases (AIDs). However, the effect of the genetics of VD on the risk of MS is subject to debate. This study focuses on genes linked to the VD signaling pathway in families with MS. The evaluation of gene variants in all the members of families could contribute to an additional knowledge on the information obtained from case-control studies that use nonrelated healthy people. MATERIAL AND METHODS We studied 94 individuals from 15 families including at least two patients with MS. We performed whole-exome next generation sequencing on all individuals and analyzed variants of the DHCR7, CYP2R1, CYP3A4, CYP27A1, GC, CYP27B1, LRP2, CUBN, DAB2, FCGR, RXR, VDR, CYP24A1, and PDIA3 genes. We also studied PTH, FGF23, METTL1, METTL21B, and the role of the linkage disequilibrium block on the long arm of chromosome 12, through analysis of the CDK4, TSFM, AGAP2, and AVIL genes. We compared patients with MS, other AIDs and unaffected members from different family types. RESULTS The study described the variants in the VD signaling pathway that appear in families with at least two patients with MS. Some infrequent variants were detected in these families, but no significant difference was observed between patients with MS and/or other AIDs and unaffected family members in the frequency of these variants. Variants previously associated with MS in the literature were not observed in these families or were distributed similarly in patients and unaffected family members. CONCLUSION The study of genes involved in the VD signaling pathway in families that include more than one patient with MS did not identify any variants that could explain the presence of the disease, suggesting that VD metabolism could probably play a role in MS more as an environmental factor rather than as a genetic factor. Our study also supports the analysis of cases and unaffected individuals within families in order to determine the influence of genetic factors.
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Affiliation(s)
- Vanesa Pytel
- Department of Neurology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain.,Laboratory of Neurobiology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Jordi A Matías-Guiu
- Department of Neurology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Laura Torre-Fuentes
- Laboratory of Neurobiology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Paloma Montero-Escribano
- Department of Neurology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | | | | | | | - Ulises Gómez-Pinedo
- Laboratory of Neurobiology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
| | - Jorge Matías-Guiu
- Department of Neurology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain.,Laboratory of Neurobiology, Institute of Neurosciences, IdISSC, Hospital Clínico San Carlos, Universidad Complutense de Madrid, Madrid, Spain
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DNA methylation and transcriptome signature of the IL12B gene in ankylosing spondylitis. Int Immunopharmacol 2019; 71:109-114. [PMID: 30889422 DOI: 10.1016/j.intimp.2019.03.026] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2019] [Revised: 03/13/2019] [Accepted: 03/13/2019] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Ankylosing spondylitis (AS) is an autoimmune disease without a reliable biomarker. This study investigated the IL12B gene methylation as a robust marker by integrating DNA methylation and mRNA data. METHODS A two-stage design was used for methylome and transcriptome investigation. The first phase detected methylation level from 99 AS patients and 99 healthy controls (HCs) whilst the second phase measured mRNA level from 20 patients and 20 HCs. We conducted analysis of differential methylation sites and receiver operating characteristic (ROC) as well as mRNA level to verify methylation. RESULTS We investigated 37 methylation sites that were mapped to 2 CpG islands (IL12B-1 and IL12B-2). Compared with HCs, the two islands were hypermethylated (IL12B-1: P = 4.6 ∗ 10 ^ -4; IL12B-2: P = 1.3 ∗ 10 ^ -5) and the mRNA level was overexpressed (P = 0.004) in AS patients. The subgroup analysis results showed a significant hypermethylation of the two islands in B27 positive group (IL12B-1: P = 3.7 ∗ 10 ^ -4; IL12B-2: P = 3.7 ∗ 10 ^ -6) and in male patients (IL12B-1: P = 4.9 ∗ 10 ^ -4; IL12B-2: P = 7.2 ∗ 10 ^ -6). ROC results found that the IL12B-1 island had a sensitivity of 62.6% and a specificity of 66.7%, and the IL12B-2 had a sensitivity of 50.0% and a specificity of 77.7%. CONCLUSION DNA methylation and transcriptome signature of the IL12B gene can discriminate AS patients from HCs, and hypermethylation of the IL12B may contribute to the pathogenesis of AS.
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15
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Sun J, Zhang S, Liu JS, Gui M, Zhang H. Expression of vitamin D receptor in renal tissue of lupus nephritis and its association with renal injury activity. Lupus 2019; 28:290-294. [PMID: 30691345 DOI: 10.1177/0961203319826704] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Abstract
Objective Vitamin D receptor (VDR) has potent anti-inflammatory activities. VDR gene polymorphism has been linked with systemic lupus erythematosus (SLE). However, its expression in the kidney has not been evaluated. This study aimed to investigate the relationship between VDR expression and renal pathology as well as clinical manifestations in lupus nephritis (LN). Methods A total of 20 renal biopsy specimens from 35 patients with LN were classified according to the International Society of Nephrology/Renal Pathology Society 2003 LN-type standards pathological type, and the activity index and chronicity index were determined. Five normal renal tissue samples were obtained from surrounding areas distal to nephronophthisis or renal tumors (>2 cm). The expression of VDR was assessed by immunohistochemistry. The relationships between VDR expression and histological injury index, proteinuria and Systemic Lupus International Collaborating Clinics (SLICC) renal activity scores were analyzed. Results As compared to the control group, the expression of VDR in the LN group was lower ( p < 0.001) and negatively correlated with activity index (r = –0.548, p = 0.012) but not with chronicity index (r = –0.277, p = 0.236). The expression of VDR in renal tissue was also associated with SLICC renal activity scores (r = –0.470, p = 0.037). Conclusion The down-regulation of VDR expression in renal tissues of LN patients was negatively correlated with renal activity and injury severity.
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Affiliation(s)
- J Sun
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - S Zhang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - J S Liu
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - M Gui
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
| | - H Zhang
- Department of Nephrology and Rheumatology, Third Xiangya Hospital, Central South University,Changsha,China
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16
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Bai R, Zhang Y, Liu W, Ma C, Chen X, Yang J, Sun D. The Relationship of Ankylosing Spondylitis and Subclinical Atherosclerosis: A Systemic Review and Meta-Analysis. Angiology 2018; 70:492-500. [PMID: 30497278 DOI: 10.1177/0003319718814309] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Affiliation(s)
- Ruocen Bai
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Yanfen Zhang
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Wen Liu
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Chunyan Ma
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Xin Chen
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Jun Yang
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
| | - Dandan Sun
- Department of Cardiovascular Ultrasound, The First Affiliated Hospital of China Medical University, Shenyang, China
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Abstract
This retrospective study assessed the effect of alendronate for treating patients with ankylosing spondylitis (AS).Eighty-six patients with AS were included in this retrospective study, and were divided into 2 groups. Forty-six patients in the intervention group received alendronate plus vitamin D (400 mg/day) and calcium (500 mg/day), while 40 patients in the control group received vitamin D and calcium only, the same dose as the intervention group. The primary outcome included bone densitometry. The secondary outcomes consisted of quality of life, measured by Ankylosing Spondylitis Quality of Life (ASQoL) questionnaire, disease activity, measured by Bath Ankylosing Spondylitis Disease Activity Index (BASDAI), and functional status, measured by Bath Ankylosing Spondylitis Functional Index (BASFI), as well as the adverse events (AEs).At the end of 6-month treatment, patients in the intervention group were not superior to the patients in the control group in bone densitometry (hip, P = .47; lumbar, P = .53), quality of life (P = .32), disease activity (P = .39), and functional status (P = .41). Moreover, no significant differences in AEs were found between 2 groups.The results of the present study showed that alendronate can neither be used to treat bone loss, nor to enhance the quality of life, disease activity, and functional status.
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Affiliation(s)
- Gang Li
- Department of Orthopedic Surgery
| | | | - Li Tian
- Department of Orthopedic Surgery
| | - Lian-jin Jin
- Department of Anesthesia, The Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - Wei Zhao
- Department of Anatomy, Mudanjiang Medical University, Mudanjiang, China
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18
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Association between VDR polymorphisms and multiple sclerosis: systematic review and updated meta-analysis of case-control studies. Neurol Sci 2017; 39:225-234. [DOI: 10.1007/s10072-017-3175-3] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2017] [Accepted: 10/27/2017] [Indexed: 12/31/2022]
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19
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Hu X, Liu M, Ni Y, Zhang G. Genetic analysis of the Vitamin D receptor start codon polymorphism (FokI) in cervical vertebra and lumbar spine pathologies: a meta-analysis. Oncotarget 2017; 8:72921-72932. [PMID: 29069836 PMCID: PMC5641179 DOI: 10.18632/oncotarget.20380] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2017] [Accepted: 08/08/2017] [Indexed: 11/25/2022] Open
Abstract
BACKGROUND Vitamin D receptor (VDR) FokI polymorphism has been reported to influence the risk of spinal diseases. However, several studies suggest inconsistent results. Therefore, we performed this analysis to reveal the accurate relationship between VDR FokI polymorphism and spinal diseases. MATERIALS AND METHODS 8 articles accord with the strict inclusion and exclusion criteria. 1116 cases and 1263 controls are entered into this analysis. The pooled odds ratios (ORs) and 95% confidence intervals (CI) are calculated to evaluate the association between VDR gene polymorphism and spinal diseases. RESULT The results suggest that allele F is a risk factor for spinal diseases and the difference is significant (F vs. f: OR = 1.151, 95% CI, 1.020-1.300). For the genotype analysis of VDR FokI, no statistical differences exist in the models of heterozygote comparison (Ff vs. ff), homozygote comparison (FF vs. ff) and dominant model (FF + Ff vs. ff) (p > 0.05). However, in recessive model (FF vs. Ff + ff), there is a significant association between VDR polymorphism and spinal diseases (OR = 1.209, 95% CI, 1.017-1.436). In subgroup analysis, the results show that allele F is a risk factor for spinal diseases in each estimation. In hospital-based subgroup, the significant differences exist in FF vs. ff and FF vs. Ff + FF models. In degenerative spine diseases group, the results are consistent with that of overall studies. CONCLUSIONS According to results of this meta-analysis, allele F is associated with the increased risk of spinal diseases. FF genotype may contribute to the susceptibility of spinal diseases. Therefore, VDR FokI polymorphism is related with spinal diseases.
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Affiliation(s)
- Xinyu Hu
- Department of Scientific Research, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
- The Former Dalian Sanatorium of Shenyang Military Region, Dalian, Liaoning, China
| | - Min Liu
- Department of Scientific Research, Jiading District Central Hospital Affiliated Shanghai University of Medicine and Health Sciences, Shanghai, China
| | - Yanjun Ni
- The Former Dalian Sanatorium of Shenyang Military Region, Dalian, Liaoning, China
| | - Guolong Zhang
- The Former Dalian Sanatorium of Shenyang Military Region, Dalian, Liaoning, China
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Zhang X, Han R, Wang M, Li X, Yang X, Xia Q, Liu R, Yuan Y, Hu X, Chen M, Jiang G, Ma Y, Yang J, Xu S, Xu J, Shuai Z, Pan F. Association between the autophagy-related gene ULK1 and ankylosing spondylitis susceptibility in the Chinese Han population: a case-control study. Postgrad Med J 2017; 93:752-757. [PMID: 28667165 DOI: 10.1136/postgradmedj-2017-134964] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2017] [Revised: 05/24/2017] [Accepted: 05/27/2017] [Indexed: 01/29/2023]
Abstract
PURPOSE Ankylosing spondylitis (AS), inflammatory bowel disease and Crohn's disease (CD) often coexist in the same patient and these diseases have remarkably strong overlaps in genetic association. The association between Unc51like kinase 1 (ULK1) gene polymorphisms and CD has been reported, and the aim of the current study was to investigate whether ULK1 polymorphisms are also associated with susceptibility to AS in the Chinese Han population. METHODS Five tagging single nucleotide polymorphisms in the ULK1 gene (rs9652059, rs11616018, rs12303764, rs4964879 and rs7300908) were genotyped by the improved multiplex ligase detection reaction method in a cohort of patients with AS (n=649) and controls (n=628). Various genetic models were performed and haplotypes were constructed after linkage disequilibrium analysis. RESULTS A statistically significant difference was found in the dominant model of the rs9652059 polymorphism (OR (95% CI) = 0.796 (0.638 to 0.994), χ2 = 4.064, p= 0.044). Haplotypes were conducted between rs9652059 and rs11616018, rs11616018 and rs4964879, rs9652059 and rs4964879 based on D' ≥0.9 and r2 ≥ 0.6. Ht5 (rs9652059C-rs4964879G) haplotype was associated with AS (OR (95% CI) = 0.834 (0.706 to 0.985), χ2=4.555, p= 0.0328) and other two haplotypes were marginally correlated with AS (ht2 (rs9652059C-rs11616018T): OR (95% CI) = 0.846 (0.717 to 1.000), χ2= 3.864, p= 0.0493); ht3 (rs9652059T-rs11616018T): OR (95% CI) = 1.440 (0.999 to 2.076), χ2 = 3.849, p = 0.0498). CONCLUSIONS Our findings suggest that rs9652059 variation (C→T) could increase AS susceptibility and haplotypes of rs9652059C-rs4964879G, rs9652059C-rs11616018T and rs9652059T-rs11616018T may be associatd with AS.
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Affiliation(s)
- Xu Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Renfang Han
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Mengmeng Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Xiaona Li
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Xiao Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Qing Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Rui Liu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Yaping Yuan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Xingxing Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Mengya Chen
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Guangming Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Yubo Ma
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Jiajia Yang
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
| | - Shengqian Xu
- Department of Rheumatism and Immunity, First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Jianhua Xu
- Department of Rheumatism and Immunity, First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Zongwen Shuai
- Department of Rheumatism and Immunity, First Affiliated Hospital of Anhui Medical University, Anhui, China
| | - Faming Pan
- Department of Epidemiology and Biostatistics, School of Public Health, Anhui Medical University, Hefei, Anhui, China.,The Key Laboratory of Major Autoimmune Diseases, Anhui, China
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Zhang P, Li Q, Qi J, Lv Q, Zheng X, Wu X, Gu J. Association between vitamin D receptor gene polymorphism and ankylosing spondylitis in Han Chinese. Int J Rheum Dis 2016; 20:1510-1516. [PMID: 27778467 DOI: 10.1111/1756-185x.12949] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Affiliation(s)
- Pingping Zhang
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
- Department of Pediatrics; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Qiuxia Li
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Jun Qi
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Qing Lv
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Xuqi Zheng
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Xinyu Wu
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
| | - Jieruo Gu
- Department of Rheumatology; The Third Affiliated Hospital of Sun Yat-Sen University; Guangzhou China
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