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Vitamin D receptor

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https://www.readbyqxmd.com/read/28327211/reduced-fetal-vitamin-d-status-by-maternal-undernutrition-during-discrete-gestational-windows-in-sheep
#1
J K Cleal, M R Hargreaves, K R Poore, J C Y Tang, W D Fraser, M A Hanson, L R Green
Placental transport of vitamin D and other nutrients (e.g. amino acids, fats and glucose) to the fetus is sensitive to maternal and fetal nutritional cues. We studied the effect of maternal calorific restriction on fetal vitamin D status and the placental expression of genes for nutrient transport [aromatic T-type amino acid transporter-1 (TAT-1); triglyceride hydrolase/lipoprotein uptake facilitator lipoprotein lipase (LPL)] and vitamin D homeostasis [CYP27B1; vitamin D receptor (VDR)], and their association with markers of fetal cardiovascular function and skeletal muscle growth...
March 22, 2017: Journal of Developmental Origins of Health and Disease
https://www.readbyqxmd.com/read/28325820/autophagy-and-vitamin-d
#2
Alexandra A Mushegian
Vitamin D receptor represses basal autophagy in breast tissue, which is derepressed by vitamin D, slowing cancer progression.
March 21, 2017: Science Signaling
https://www.readbyqxmd.com/read/28325259/vitamin-d-analogues-potential-use-in-cancer-treatment
#3
REVIEW
Michael J Duffy, Alyson Murray, Naoise C Synnott, Norma O'Donovan, John Crown
The vitamin D receptor (VDR) is a member of the thyroid-steroid family of nuclear transcription factors. Following binding of the active form of vitamin D, i.e., 1,25(OH)2D3 (also known as calcitriol) and interaction with co-activators and co-repressors, VDR regulates the expression of several different genes. Although relatively little work has been carried out on VDR in human cancers, several epidemiological studies suggest that low circulating levels of vitamin D are associated with both an increased risk of developing specific cancer types and poor outcome in patients with specific diagnosed cancers...
April 2017: Critical Reviews in Oncology/hematology
https://www.readbyqxmd.com/read/28323068/vitamin-d-receptor-expression-and-hepcidin-levels-in-the-protection-or-severity-of-leprosy-a-systematic-review
#4
Ana Laura Grossi de Oliveira, Ana Thereza Chaves, Cristiane Alves Silva Menezes, Nathalia Sernizon Guimarães, Lilian Lacerda Bueno, Ricardo Toshio Fujiwara, Manoel Otávio da Costa Rocha
Leprosy is a chronic infectious disease whose disequilibrium in the host's genetic, immunological and clinical mechanisms lead to distinct manifestations defining the type of immunological response. This review focuses its attention on the influence of the Vitamin D Receptor and hepcidin expressions that can suggest the protection or severity of leprosy.
March 16, 2017: Microbes and Infection
https://www.readbyqxmd.com/read/28323045/vitamin-d-receptor-gene-polymorphisms-among-emirati-patients-with-type-2-diabetes-mellitus
#5
Habiba Al Safar, Sarah El Hajj Chehadeh, Laila Abdel-Wareth, Afrozul Haq, Herbert F Jelinek, Gehad ElGhazali, Fatme Al Anouti
At a prevalence rate close to 19.5%, the UAE has one of the highest rates of Type 2 Diabetes Mellitus (T2DM) in the world. Genome wide association studies (GWAS) have led to the identification of several genetic variants that are associated with T2DM. Recently, genes involved in vitamin D metabolism have gained interest because of the association between vitamin D deficiency (VDD) and increased risk for T2DM. Among these, the Vitamin D receptor (VDR) gene is a good candidate for T2DM susceptibility. The aim of this study was to investigate the association between VDR polymorphisms and T2DM among a representative sample of the Emirati population...
March 16, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28318299/lithocholic-acid-a-new-emergent-protector-of-intestinal-calcium-absorption-under-oxidant-conditions
#6
Ana M Marchionatti, Adriana Pérez, María A Rivoira, Valeria A Rodríguez, Nori G Tolosa de Talamoni
LCA and 1,25(OH)2D3 are vitamin D receptor ligands with different binding affinity. The secosteroid stimulates intestinal Ca(2+) absorption. Whether LCA alters this process remains unknown. The aim of our work was to determine the effect of LCA on intestinal Ca(2+) absorption in the absence or presence of NaDOC, bile acid that inhibits the cation transport. The data show that LCA by itself did not alter intestinal Ca(2+) absorption, but prevented the inhibitory effect of NaDOC. The concomitant administration of LCA avoided the reduction of intestinal alkaline phosphatase activity caused by NaDOC...
March 20, 2017: Biochemistry and Cell Biology, Biochimie et Biologie Cellulaire
https://www.readbyqxmd.com/read/28315703/molecular-endocrinology-of-vitamin-d-on-the-epigenome-level
#7
REVIEW
Carsten Carlberg
The molecular endocrinology of vitamin D is based on the facts that i) its metabolite 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) is the high affinity ligand of the nuclear receptor vitamin D receptor (VDR) and ii) the transcription factor VDR is the unique target of 1,25(OH)2D3 in the nucleus. Short-term alterations of the epigenome are primarily changes in the post-translational modification status of nucleosome-forming histone proteins, the consequences of which are i) a local increase or decrease in chromatin accessibility and ii) the activation or repression of gene transcription...
March 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28303937/vitamin-d-inhibits-lymphangiogenesis-through-vdr-dependent-mechanisms
#8
Saleh Yazdani, Fariba Poosti, Luis Toro, Johannes Wedel, Rik Mencke, Katarina Mirković, Martin H de Borst, J Steven Alexander, Gerjan Navis, Harry van Goor, Jacob van den Born, Jan-Luuk Hillebrands
Excessive lymphangiogenesis is associated with cancer progression and renal disease. Attenuation of lymphangiogenesis might represent a novel strategy to target disease progression although clinically approved anti-lymphangiogenic drugs are not available yet. VitaminD(VitD)-deficiency is associated with increased cancer risk and chronic kidney disease. Presently, effects of VitD on lymphangiogenesis are unknown. Given the apparently protective effects of VitD and the deleterious associations of lymphangiogenesis with renal disease, we here tested the hypothesis that VitD has direct anti-lymphangiogenic effects in vitro and is able to attenuate lymphangiogenesis in vivo...
March 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28302014/role-of-hepcidin-25-in-chronic-kidney-disease-anemia-and-beyond
#9
Norishi Ueda, Kazuya Takasawa
Iron is an essential element for all living organisms, but produces toxic oxidants. Thus, iron homeostasis is tightly regulated in mammals. Hepcidin-25 (hepcidin) has emerged as a molecule that regulates iron metabolism. Binding of hepcidin to its receptor, ferroportin, inhibits intestinal iron absorption and iron efflux from hepatocytes and macrophages. Decreased hepcidin enhances iron absorption and efflux. Hepcidin could be predictive of iron status and the response to iron supplementation or erythropoietin-stimulating agents...
March 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28301870/the-impact-of-vitamin-d-pathway-genetic-variation-and-circulating-25-hydroxyvitamin-d-on-cancer-outcome-systematic-review-and-meta-analysis
#10
P G Vaughan-Shaw, F O'Sullivan, S M Farrington, E Theodoratou, H Campbell, M G Dunlop, L Zgaga
BACKGROUND: Vitamin D has been linked with improved cancer outcome. This systematic review and meta-analysis investigates the relationship between cancer outcomes and both vitamin D-related genetic variation and circulating 25-hydroxyvitamin D (25OHD) concentration. METHODS: A systematic review and meta-analysis of papers until November 2016 on PubMed, EMBASE and Web of Science pertaining to association between circulating vitamin D level, functionally relevant vitamin D receptor genetic variants and variants within vitamin D pathway genes and cancer survival or disease progression was performed...
March 16, 2017: British Journal of Cancer
https://www.readbyqxmd.com/read/28301319/hereditary-vitamin-d-resistant-rickets-in-lebanese-patients-the-p-r391s-and-p-h397p-variants-have-different-phenotypes
#11
Rabih Andary, Abdul-Karim El-Hage-Sleiman, Theresa Farhat, Sami Sanjad, Georges Nemer
BACKGROUND: Hereditary vitamin D-resistant rickets (HVDRR) is an autosomal recessive disorder caused by mutations in the vitamin D receptor (VDR) gene. Variable phenotypes have been associated with these mutations, and some of these were linked to the effects they have on the interacting partners of VDR, mainly the retinoic X receptor (RXR). METHODS: We examined four patients with HVDRR from three unrelated Lebanese families. All parents were consanguineous with normal phenotype...
March 16, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
https://www.readbyqxmd.com/read/28300676/bare-metal-versus-paclitaxel-eluting-stents-for-long-femoropopliteal-lesions-prospective-cohorts-comparison-using-a-propensity-score-matched-analysis
#12
Pierre-Alexandre Vent, Adrien Kaladji, Jean-Michel Davaine, Béatrice Guyomarch, Philippe Chaillou, Alain Costargent, Thibaut Quillard, Yann Gouëffic
BACKGROUND: The study aims to compare outcomes of primary stenting of TASC C/D femoropopliteal (FP) lesions with bare metal stent (BMS) versus paclitaxel eluting stent (PES). METHODS: In a single centre study, we established 2 consecutive and prospective cohorts with TASC C/D FP de novo lesions. The inclusion and exclusion criteria were similar. Bare metal stent (LifeStent(®), Bard Peripheral) and PES (Zilver(®) PTX(®), Cook Peripheral Vascular) were implanted...
March 11, 2017: Annals of Vascular Surgery
https://www.readbyqxmd.com/read/28290237/multiple-nutritional-factors-and-the-risk-of-hashimoto-s-thyroiditis
#13
Shiqian Hu, Margaret P Rayman
Background Hashimoto's Thyroiditis (HT) is considered to be the most common autoimmune disease. It is currently accepted that genetic susceptibility, environmental factors and immune disorders contribute to its development. Regarding nutritional factors, evidence implicates high iodine intake, deficiencies of selenium and iron with a potential relevance of vitamin D status. To elucidate the role of nutritional factors in the risk, pathogenesis and treatment of Hashimoto's Thyroiditis (HT), PubMed and the Cochrane Library were searched for publications on iodine, iron, selenium and vitamin D and risk/treatment of HT...
March 14, 2017: Thyroid: Official Journal of the American Thyroid Association
https://www.readbyqxmd.com/read/28288905/bioinformatic-approaches-to-interrogating-vitamin-d-receptor-signaling
#14
Moray J Campbell
Bioinformatics applies unbiased approaches to develop statistically-robust insight into health and disease. At the global, or "20,000 foot" view bioinformatic analyses of vitamin D receptor (NR1I1/VDR) signaling can measure where the VDR gene or protein exerts a genome-wide significant impact on biology; VDR is significantly implicated in bone biology and immune systems, but not in cancer. With a more VDR-centric, or "2000 foot" view, bioinformatic approaches can interrogate events downstream of VDR activity...
March 10, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28285414/a-population-association-study-of-vitamin-d-receptor-gene-polymorphisms-and-haplotypes-with-the-risk-of-systemic-lupus-erythematosus-in-a-chinese-population
#15
Xu-E Chen, Pu Chen, Shan-Shan Chen, Jin Lu, Ting Ma, Guang Shi, Ya Zhou, Ji Li, Liang Sheng
The aim of the study is to investigate the association of vitamin D receptor (VDR) gene polymorphism, additional gene-gene interaction, and haplotype combination with systemic lupus erythematosus (SLE) risk. Pairwise linkage disequilibrium (LD) analysis was conducted using SNPstats. The association between four SNPs within VDR gene and SLE risk was investigated by logistic regression. Generalized multifactor dimensionality reduction (GMDR) was used to analyze the interaction among four SNPs. Four SNPs within VDR gene were selected for genotyping in this study, including rs2228570, rs1544410, rs7975232, and rs731236...
March 11, 2017: Immunologic Research
https://www.readbyqxmd.com/read/28282804/ifnar1-expression-level-in-iranian-multiple-sclerosis-patients-treated-with-ifn-b
#16
Arezou Sayad, Mohsen Khakzad Kelarijani, Elham Sajjadi, Mohammad Taheri
BACKGROUND: Multiple sclerosis (MS) as an auto-immune disease is an inflammatory, demyelinating disease of the central nervous system. Certain genes have shown to be involved in the initiation of MS but the specific role of some of them, e.g. IFNAR1 has not been identified in certain populations yet. OBJECTIVE: The IFNAR1 as a type I membrane protein shapes one of the two chains of a receptor for interferons alpha and beta. METHODS: To find out how IFNAR1 functions in the Iranian population, the researchers compared the expression level of this gene in relapsing-remitting MS (RR-MS) samples with normal individuals...
March 3, 2017: Human Antibodies
https://www.readbyqxmd.com/read/28266114/interaction-of-lifestyle-behaviour-or-systemic-diseases-with-dental-caries-and-periodontal-diseases-consensus-report-of-group-2-of-the-joint-efp-orca-workshop-on-the-boundaries-between-caries-and-periodontal-diseases
#17
Iain L C Chapple, Philippe Bouchard, Maria Grazia Cagetti, Guglielmo Campus, Maria-Clotilde Carra, Fabio Cocco, Luigi Nibali, Philippe Hujoel, Marja L Laine, Peter Lingstrom, David J Manton, Eduardo Montero, Nigel Pitts, Hélène Rangé, Nadine Schlueter, Wim Teughels, Svante Twetman, Cor Van Loveren, Fridus Van der Weijden, Alexandre R Vieira, Andreas G Schulte
Periodontal diseases and dental caries are the most common diseases of humans and the main cause of tooth loss. Both diseases can lead to nutritional compromise and negative impacts upon self-esteem and quality of life. As complex chronic diseases, they share common risk factors, such as a requirement for a pathogenic plaque biofilm, yet they exhibit distinct pathophysiologies. Multiple exposures contribute to their causal pathways, and susceptibility involves risk factors that are inherited (e.g. genetic variants), and those that are acquired (e...
March 2017: Journal of Clinical Periodontology
https://www.readbyqxmd.com/read/28262768/chronic-alcohol-consumption-decreases-brown-adipose-tissue-mass-and-disrupts-thermoregulation-a-possible-role-for-altered-retinoid-signaling
#18
William S Blaner, Madeleine A Gao, Hongfeng Jiang, Timothy R A Dalmer, Xueyuan J Hu, Henry N Ginsberg, Robin D Clugston
Retinoic acid, an active metabolite of dietary vitamin A, acts as a ligand for nuclear receptor transcription factors with more than 500 known target genes. It is becoming increasingly clear that alcohol has a significant impact on cellular retinoic acid metabolism, with resultant effects on its function. Here, we test the hypothesis that chronic alcohol consumption impairs retinoic acid signaling in brown adipose tissue (BAT), leading to impaired BAT function and thermoregulation. All studies were conducted in age-matched, male mice consuming alcohol-containing liquid diets...
March 6, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28261302/the-vitamin-d-analogue-paricalcitol-attenuates-hepatic-ischemia-reperfusion-injury-through-down-regulation-of-toll-like-receptor-4-signaling-in-rats
#19
Min Sung Kim, Soyoung Lee, Namhee Jung, Kiho Lee, Jinwoo Choi, Sang-Hoon Kim, Jinhyun Jun, Won-Mee Lee, Yeonsoo Chang, Donghee Kim
INTRODUCTION: Recent studies have revealed that vitamin D and its synthetic analogues have a protective effect on experimental ischemia/reperfusion (I/R) models in several organs, but little is known about its effect on the liver. The aim of this study was to evaluate the beneficial effects of vitamin D in a model of liver I/R in rats, focusing on Toll-like receptor (TLR) 4 signaling, which has been shown to be involved in I/R injury. MATERIAL AND METHODS: Twenty-four male Wistar rats were randomized into four groups: Saline + Sham, Saline + I/R, Paricalcitol + Sham, and Paricalcitol + I/R...
March 1, 2017: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/28259913/1-25-oh-2d3-vdr-attenuates-high-glucose%C3%A2-induced-epithelial%C3%A2-mesenchymal-transition-in-human-peritoneal-mesothelial-cells-via-the-tgf%C3%AE-smad3-pathway
#20
Lina Yang, Lan Wu, Xiuli Zhang, Ye Hu, Yi Fan, Jianfei Ma
Epithelial-mesenchymal transition (EMT) has been recognized to accelerate peritoneal membrane dysfunction. 1,25(OH)2D3/vitamin D receptor (VDR) is important for preventing various types of EMT in vivo. However, its function on EMT and inflammation of human peritoneal mesothelial cells (HPMCs) remains to be elucidated. Therefore, the present study investigated the effects of 1,25(OH)2D3/VDR on high glucose (HG)‑induced EMT and inflammation in HPMCs and the underlying molecular mechanism. It was determined that HG reduced VDR expression, increased inflammatory cytokine expression, including transforming growth factor β (TGFβ) and interleukin‑6 (IL‑6) and phosphorylated‑SMAD family member 3 (p‑Smad3) expression...
March 1, 2017: Molecular Medicine Reports
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