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Vitamin D Receptor Gene

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https://www.readbyqxmd.com/read/29331875/the-association-between-vitamin-d-receptor-polymorphisms-and-multiple-sclerosis-in-a-turkish-population
#1
Ozden Kamisli, Ceren Acar, Mert Sozen, Mehmet Tecellioglu, Fatma Ebru Yücel, Dilara Vaizoglu, Cemal Özcan
BACKGROUND: Multiple sclerosis (MS) is a chronic, demyelinating disease of the central nervous system (CNS). Genetic and environmental factors are important in disease development. Many studies have investigated the relationship between MS and VDR polymorphisms. VDR gene polymorphism has not been previously studied in Turkish MS patients. We aimed to investigate the relationship between MS and VDR genotypes Taq I, Apa I and Fok I polymorphisms in a Turkish population. METHODS: 167 MS patients and 146 healthy control subjects were included in the present study...
January 9, 2018: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/29325125/age-phosphorus-and-25-hydroxycholecalciferol-regulate-mrna-expression-of-vitamin-d-receptor-and-sodium-phosphate-cotransporter-in-the-small-intestine-of-broiler-chickens
#2
J C Han, J L Zhang, N Zhang, X Yang, H X Qu, Y Guo, C X Shi, Y F Yan
Four experiments were conducted in this study. Experiment 1 was carried out to examine mRNA expressions of nuclear vitamin D receptor (nVDR), membrane vitamin D receptor (mVDR), and type IIb sodium-phosphate cotransporter (NaPi-IIb) in the small intestine of broiler chickens. Experiments 2, 3, and 4 were implemented to evaluate effects of age, non-phytate phosphorus (NPP), and 25-hydroxycholecalciferol (25-OH-D3) on mRNA expressions of nVDR, mVDR, and NaPi-IIb in the duodenum of chickens. Results showed that mRNA expression levels of nVDR and NaPi-IIb were highest in the duodenum of 21-day-old broilers, lower in the jejunum, and lowest in the ileum...
January 6, 2018: Poultry Science
https://www.readbyqxmd.com/read/29316495/vdr-and-gc-gene-polymorphisms-modulate-the-risk-of-lumbar-disc-degeneration-in-iran
#3
Sohail Mashayekhi, Alia Saberi, Zivar Salehi, Gelareh Biazar, Roghayeh Mehrdel
OBJECTIVE: Lumbar disc degeneration (LDD) occurs commonly in humans. Vitamin D metabolic and signaling pathway plays a significant role in intervertebral disc degeneration. The aim of this study was to evaluate the influence of the genetic polymorphism in the two key genes of 1,25-(OH)2-D3 pathway, VDR (vitamin D receptor) and GC (group-specific component), in LDD development. PATIENTS AND METHODS: Two single-nucleotide polymorphisms, VDR rs2228570 (FokI) and GC rs7041, were genotyped in 180 patients with LDD and 230 healthy individuals...
December 29, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29313597/vitamin-d-and-vitamin-d-receptor-in-patients-with-ophthalmic-pterygium
#4
Cristina Maxia, Daniela Murtas, Michela Corrias, Ignazio Zucca, Luigi Minerba, Franca Piras, Cristiana Marinelli, Maria Teresa Perra
Pterygium, an ultraviolet radiation (UV)-related disease, is a relatively benign process, but since it displays tumor-like features, it has been proposed to be a neoplastic- like growth disorder. Vitamin D performs a number of functions in addition to calcium homeostasis, as inhibition of cell proliferation, activation of apoptotic pathways, and inhibition of angiogenesis. Since the antitumor actions of vitamin D are mediated primarily through the nuclear vitamin D receptor (VDR), the aim of the present study was to investigate vitamin D status in patients with pterygium and in control subjects, and VDR immunohistochemical expression in samples of pterygium and normal conjunctiva in order to evaluate a possible role of vitamin D pathway in the pathogenesis of the disease...
October 30, 2017: European Journal of Histochemistry: EJH
https://www.readbyqxmd.com/read/29304245/circulating-adiponectin-modifies-the-fgf23-response-to-vitamin-d-receptor-activation-a-post-hoc-analysis-of-a-double-blind-randomized-clinical-trial
#5
Belinda Spoto, Patrizia Pizzini, Giovanni Tripepi, Francesca Mallamaci, Carmine Zoccali
Background: The fibroblast growth factor 23 (FGF23) response to phosphate load is suppressed in adiponectin gene null mice and substantially amplified in mice overexpressing the same gene and vitamin D receptor (VDR) activation markedly enhances FGF23 gene expression. Methods: We performed an analysis of the static (baseline adiponectin levels) and dynamic (fluctuations in adiponectin levels) interactions of serum adiponectin with the FGF23 response to paricalcitol and placebo in the setting of a double-blind, randomized clinical trial in chronic kidney disease (CKD) patients (NCT01680198)...
February 3, 2018: Nephrology, Dialysis, Transplantation
https://www.readbyqxmd.com/read/29290431/targeting-antimicrobial-defenses-of-the-udder-through-an-intrinsic-cellular-pathway
#6
Corwin D Nelson, Kathryn E Merriman, Michael B Poindexter, Mercedes F Kweh, Leslie P Blakely
The bovine innate immune system has a strong repertoire of antimicrobial defenses to rapidly attack infectious pathogens that evade physical barriers of the udder. Exploration of the intracrine vitamin D pathway of bovine macrophages has improved understanding of the signals that initiate antimicrobial defenses that protect the udder. In the intracrine vitamin D pathway, pathogen recognition receptors upregulate CYP27B1 mRNA that encodes for the enzyme that converts 25-hydroxyvitamin D [25(OH)D3] to the active vitamin D hormone, 1,25-dihydroxyvitamin D3 [1,25(OH)2D3]...
December 28, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/29289621/high-dose-of-vitamin-d-supplement-is-associated-with-reduced-susceptibility-of-monocyte-derived-macrophages-to-dengue-virus-infection-and-pro-inflammatory-cytokine-production-an-exploratory-study
#7
Diana Marcela Giraldo, Andrés Cardona, Silvio Urcuqui Inchima
BACKGROUND: Dengue, one the most important public health problems in tropical and subtropical areas, is the most important mosquito-borne viral infection in humans. In the absence of effective treatment and vaccine against dengue, the active form of vitamin D could play a central role in protection against dengue virus (DENV), the causal agent of dengue. Recently we reported that monocyte-derived macrophages (MDMs) differentiated in the presence of vitamin D, in addition to expressing lower levels of mannose receptor, are less susceptible to DENV infection and produce low levels of pro-inflammatory cytokines, compared to MDMs differentiated in the absence of vitamin D...
December 28, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29287957/novel-vdr-antagonists-based-on-the-gw0742-scaffold
#8
Kelly A Teske, Jonathan W Bogart, Leggy A Arnold
The vitamin D receptor is a nuclear hormone receptor that regulates cell proliferation, cell differentiation and calcium homeostasis. The receptor is endogenously activated by 1,25-dihydroxyvitamin D3, which induces transcription of VDR targets genes regulated by coactivator binding. VDR antagonists and partial agonists have been developed based on the secosteroid scaffold of vitamin D. Only a few non-secosteroid VDR antagonists are known. Herein, we report the rational design of non-secosteroid VDR antagonists using GW0742 as a scaffold...
December 19, 2017: Bioorganic & Medicinal Chemistry Letters
https://www.readbyqxmd.com/read/29259981/association-between-single-nucleotide-polymorphisms-in-vitamin-d-receptor-gene-polymorphisms-and-permanent-tooth-caries-susceptibility-to-permanent-tooth-caries-in-chinese-adolescent
#9
Miao Yu, Qian-Zhou Jiang, Zhe-Yi Sun, Yuan-Yuan Kong, Zhi Chen
Purpose: Dental caries is a multifactorial infectious disease. In this study, we investigated whether single nucleotide polymorphisms (SNPs) in vitamin D receptor (VDR) gene were associated with susceptibility to permanent tooth caries in Chinese adolescents. Method: A total of 200 dental caries patients and 200 healthy controls aged 12 years were genotyped for VDR gene polymorphisms using the PCR-restriction fragment length polymorphism (PCR-RFLP) assay. All of them were examined for their oral and dental status with the WHO criteria, and clinical information such as the Decayed Missing Filled Teeth Index (DMFT) was evaluated...
2017: BioMed Research International
https://www.readbyqxmd.com/read/29243851/alterations-in-gene-expression-in-vitamin-d-deficiency-down-regulation-of-liver-cyp7a1-and-renal-oat3-in-mice
#10
Holly P Quach, Keumhan Noh, Stacie Y Hoi, Adrie Bruinsma, Geny M M Groothuis, Albert P Li, Edwin C Y Chow, K Sandy Pang
The vitamin D-deficient model, established in C57BL/6 mouse after 8-week feeding of vitamin D-deficient diets in absence or presence of added calcium, was found associated with elevated levels of plasma parathyroid hormone (PTH) and plasma and liver cholesterol, and reduction in cholesterol 7α-hydroxylase (Cyp7a1, rate-limiting enzyme for cholesterol metabolism) and renal Oat3 mRNA/protein expression levels. There was, however, no change in plasma calcium and phosphate levels. Appraisal of the liver revealed up-regulation of mRNA expressions of the small heterodimer partner (Shp) and attenuation of Cyp7a1, which contributed to hypercholesterolemia in vitamin D-deficiency...
December 15, 2017: Biopharmaceutics & Drug Disposition
https://www.readbyqxmd.com/read/29243793/a-new-antioxidant-formulation-reduces-the-apoptotic-and-damaging-effect-of-cigarette-smoke-extract-on-human-bronchial-epithelial-cells
#11
L Vanella, G Li Volti, A Distefano, M Raffaele, V Zingales, R Avola, D Tibullo, I Barbagallo
OBJECTIVE: In this study we evaluated the possible protective effect of an antioxidant formulation containing microfiltered milk derived polypeptides, Curcumin, Vitamin B2, Carnitine and N-Acetyl-cysteine (NAC) in an in vitro model of chronic obstructive pulmonary disease (COPD). MATERIALS AND METHODS: Human bronchial epithelial cells (16HBE) were used in this study. Cells were treated for 24 h in the presence or absence of 10% of cigarette smoke extract (CSE) and in the presence or absence of antioxidant formulation...
December 2017: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/29239065/vitamin-d-receptor-rs2228570-polymorphism-and-susceptibility-to-ovarian-cancer-an-updated-meta-analysis
#12
Hongmei Chen, Jin Zhu
AIM: The FokI polymorphism (C>T, rs2228570) of the vitamin D receptor gene is a coding nonsynonymous single nucleotide polymorphism in the translational initiation codon reported to have functional significance. Although the role of rs2228570 in the risk of ovarian cancer has been widely researched, the association is still unclear. We performed an updated meta-analysis to clarify this issue. METHODS: Eligible studies were retrieved from electronic databases for the period 2007-2016...
December 14, 2017: Journal of Obstetrics and Gynaecology Research
https://www.readbyqxmd.com/read/29238479/vitamin-d-receptor-gene-polymorphisms-as-a-risk-factor-for-obesity-in-saudi-men
#13
Ayman Saeed Al-Hazmi, Mazin Mohammed Al-Mehmadi, Sarah Mohammad Al-Bogami, Ashjan Ali Shami, Ahmed Ali Al-Askary, Anas Mohammad Alomery, Saad Saeed Al-Shehri, Haytham Dahlawi, Khadija Abdulrazag, Tariq Ali, Abdalaziz Al-Bogami, Emad Sheshah, Abdalaziz Al-Mutairi, Salh Al-Suhimi, Faris Alharb
Background: The prevalence of obesity and vitamin D deficiency in Saudi Arabia has increased recently. Decreased physical activity might play a role in obesity. Previous studies showed an association between low vitamin D level and its receptor polymorphism with obesity development. Objective: To determine association of low vitamin D level and its receptor polymorphism with obesity in Saudi men. Methods: This case control study was carried out from March 2016 through March 2017...
October 2017: Electronic Physician
https://www.readbyqxmd.com/read/29233860/pathway-analysis-of-transcriptomic-data-shows-immunometabolic-effects-of-vitamin-d
#14
Amadeo Muñoz Garcia, Martina Kutmon, Lars Eijssen, Martin Hewison, Chris T Evelo, Susan L Coort
Unbiased genomic screening analyses have highlighted novel immunomodulatory properties of the active form of vitamin D, 1,25-dihydroxyvitamin D (1,25(OH)2D). However, clearer interpretation of the resulting gene expression data is limited by cell model specificity. The aim of the current study was to provide a broader perspective on common gene regulatory pathways associated with innate immune responses to 1,25(OH)2D, through systematic re-interrogation of existing gene expression databases from multiple related monocyte models (the THP-1 monocytic cell line (THP-1), monocyte-derived dendritic cells (DCs), and monocytes)...
December 12, 2017: Journal of Molecular Endocrinology
https://www.readbyqxmd.com/read/29233620/regulation-of-extracellular-matrix-vesicles-via-rapid-responses-to-steroid-hormones-during-endochondral-bone-formation
#15
REVIEW
Niels Asmussen, Zhao Lin, Michael J McClure, Zvi Schwartz, Barbara D Boyan
Endochondral bone formation is a precise and highly ordered process whose exact regulatory framework is still being elucidated. Multiple regulatory pathways are known to be involved. In some cases, regulation impacts gene expression, resulting in changes in chondrocyte phenotypic expression and extracellular matrix synthesis. Rapid regulatory mechanisms are also involved, resulting in release of enzymes, factors and micro RNAs stored in extracellular matrisomes called matrix vesicles. Vitamin D metabolites modulate endochondral development via both genomic and rapid membrane-associated signaling pathways...
December 9, 2017: Steroids
https://www.readbyqxmd.com/read/29218094/mir-351-negatively-regulates-osteoblast-differentiation-of-mscs-induced-by-cholesten-3-one-through-targeting-vdr
#16
Qiuke Hou, Yongquan Huang, Yiwen Luo, Bin Wang, Yamei Liu, Rudong Deng, Saixia Zhang, Fengbin Liu, Dongfeng Chen
Our previous reports indicated that (+)-cholesten-3-one induces osteogenic differentiation of bone marrow mesenchymal stem cells (MSCs) by activating vitamin D receptor (VDR). However, whether and how miRNAs modulate osteogenic differentiation induced by (+)-cholesten-3-one have not been explored. In this study, miRNA array profiling and further validation by quantitative real-time PCR revealed that miR-351 was downregulated during (+)-cholesten-3-one-induced osteogenic differentiation of MSCs. Overexpression of miR-351 by miR-351 precursor transfection markedly inhibited the expression of osteoblast-specific genes, such as alkaline phosphatase (ALP), collagen type II, osteopontin (OPN), and runt-related transcription factor 2 (RUNX2), which consequently decreased a number of calcium mineralized nodules...
2017: American Journal of Translational Research
https://www.readbyqxmd.com/read/29208185/association-between-vitamin-d-receptor-bsmi-gene-polymorphism-and-periodontitis-a-meta-analysis-in-a-single-ethnic-group
#17
Ting Cai, Zheng-Yan Yang, Li Nie, Jia-Xiu Zhen, Li Deng, Zhi Zhou
Although many researchers have studied on the association between vitamin D receptor (VDR) BsmI polymorphism and periodontitis, this association remains elusive. To further assess the effects of VDR BsmI polymorphism on the risk of periodontitis, a meta-analysis was performed in a single ethnic group. We searched PubMed and Chinese databases for relevant studies till April 2017. The strength of the associations were assessed used pooled odds ratios (ORs) and 95% confidence intervals (CIs). Six studies including 757 periodontitis cases and 670 controls were identified at last...
November 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29208176/analysis-of-potential-interactions-between-vitamins-d-and-c-using-gene-expression-profiles-from-mouse-models
#18
Yan Jiao, Mingming Niu, Cheng Tian, Jian Yan, Aron W Vancil, Xuenan Yan, Ming Zhang
Vitamin D (VD) and vitamin C (VC) have been recognized as essential elements for human health.  Animal models, especially mouse models, have been widely used in the study of VD and VC. This study is to investigate how VD and VC interact at molecular level using whole genome expression profiles from spleens of 111 mouse strains and livers from 40 mouse strains. We first identified the genes that are closely correlated to vitamin D receptor (Vdr) and gulonolactone oxidase (Lgo). We next analyzed the potential molecular pathways of Vdrand Lgo correlated genes and examined how these two sets of pathways are connected in liver and spleen...
November 30, 2017: Cellular and Molecular Biology
https://www.readbyqxmd.com/read/29204386/identification-of-genotypes-and-allelic-frequencies-of-vitamin-d-receptor-gene-polymorphism-taqi-in-egyptian-melasma-patients
#19
Iman Seleit, Ola Ahmed Bakry, Eman Masoud, Shaimaa Nabil
Background: Melasma is a characteristic pattern of facial hyperpigmentation, occurring primarily on the forehead, cheeks, and chin, in a mask-like distribution. The pathogenesis of melasma is not fully understood. Vitamin D plays a role in skin pigmentation. It exerts its effect through vitamin D receptor (VDR), which is expressed in variable cells including normal melanocytes. Aim and Objective: The aim of the current work was to investigate if VDR gene polymorphism (TaqI) confers susceptibility to melasma in Egyptian patients...
November 2017: Indian Dermatology Online Journal
https://www.readbyqxmd.com/read/29201067/hereditary-vitamin-d-resistant-rickets-clinical-laboratory-and-genetic-characteristics-of-2-iranian-siblings
#20
Ali A Ghazi, Azita Zadeh-Vakili, Marjan Zarif Yeganeh, Shahram Alamdari, Atieh Amouzegar, Ali Akbar Khorsandi, Alireza Amirbaigloo, Fereidoun Azizi
Purpose and Methods: Hereditary vitamin D resistant rickets (HVDRR) is a rare disease that presents with signs and symptoms of rickets, alopecia, and growth retardation during the early years of life. The disease is caused by mutations in the vitamin D receptor (VDR) gene, which leads to unresponsiveness of the mutant receptor to 1-25(OH) 2 D3. The disease is transmitted as an autosomal recessive disorder and is found with equal frequency in males and females. The disease is rarely encountered and only about 100 cases are reported so far...
July 2017: International Journal of Endocrinology and Metabolism
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