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1,25(OH)2D3

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https://www.readbyqxmd.com/read/28540351/cytokine-data-obtained-from-synovial-stromal-cells-of-patients-with-rheumatoid-arthritis-or-osteoarthritis
#1
Johanna A Huhtakangas, Johanna Veijola, Sanna Turunen, Anna Karjalainen, Maarit Valkealahti, Tomi Nousiainen, Susanna Yli-Luukko, Olli Vuolteenaho, Petri Lehenkari
In this article, we share the raw cytokine data obtained from basal and stimulated synovial stromal cells cultured from patients with rheumatoid arthritis or osteoarthritis. This data article is related to the research article entitled "1,25D3 and calcipotriol, its hypocalcemic analog, exert a long-lasting anti-inflammatory and anti-proliferative effect in synoviocytes cultured from patients with rheumatoid arthritis and osteoarthritis (1). Cytokine levels were analyzed by a magnetic bead-based multiplex assay (a panel of 27 important cytokines) in two separate sets of experiments...
June 2017: Data in Brief
https://www.readbyqxmd.com/read/28539530/active-form-of-vitamin-d-ameliorates-non-alcoholic-fatty-liver-disease-by-alleviating-oxidative-stress-in-a-high-fat-diet-rat-model
#2
Chong-Gui Zhu, Ya-Xin Liu, Hao Wang, Bao-Ping Wang, Hui-Qi Qu, Bao-Li Wang, Mei Zhu
The purpose of this study was to determine whether treatment using the active form of vitamin D (1,25(OH)2D3) could protect against high-fat diet (HFD)-induced non-alcoholic fatty liver disease (NAFLD) in rats and ameliorate oxidative stress. Male Sprague-Dawley rats were divided into three groups and treated with standard chow, HFD, or HFD plus intraperitoneal injection of 1,25(OH)2D3 (5 μg/kg body weight, twice per week), respectively, for 16 weeks. Serum lipid profiles, hepatic function, intrahepatic lipid, and calcium levels were determined...
May 23, 2017: Endocrine Journal
https://www.readbyqxmd.com/read/28536085/interaction-between-the-effects-of-the-selective-estrogen-modulator-femarelle-and-a-vitamin-d-analog-in-human-umbilical-artery-vascular-smooth-muscle-cells
#3
Dalia Somjen, Esther Knoll, Orli Sharon, Ariel Many, Naftali Stern
To further investigate the interaction between vitamin D system and estrogen-mimetic compounds in the human vasculature we studied the effect of the "less- calcemic" analog of 1,25(OH)2D3 (1,25D); JK 1624F2-2 (JKF) in the presence of selective estrogen modulator femarelle (F), the phytoestrogen daidzein (D) and estradiol-17b (E2) on (3)[H] thymidine incorporation (DNA synthesis) and creatine kinase specific activity (CK) in human umbilical artery vascular smooth muscle cells (VSMC). F, D and E2, stimulated DNA synthesis at low concentrations, and inhibited it at high concentrations...
May 20, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28528333/effect-of-1-25-oh-2d3-on-proliferation-of-fibroblast-like-synoviocytes-and-expressions-of-pro-inflammatory-cytokines-through-regulating-microrna-22-in-a-rat-model-of-rheumatoid-arthritis
#4
Ping Fan, Lan He, Nan Hu, Jing Luo, Jing Zhang, Ling-Fei Mo, Yan-Hua Wang, Dan Pu, Xiao-Hong Lv, Zhi-Ming Hao, Chang-Hai Ding, Wu-Jun Xue, Yang Li
OBJECTIVE: This study aims to investigate the regulatory mechanism of 1,25-(OH)2D3 on the proliferation of fibroblast-like synoviocytes (FLS) and expressions of pro-inflammatory cytokines in rheumatoid arthritis (RA) rats via microRNA-22 (miR-22). METHODS: A rat model of RA was established with a subcutaneous injection of type II collagen. After treated with different concentrations of 1,25-(OH)2D3 the proliferation of FLS was estimated by the MTT method, and the optimal concentration of 1,25-(OH)2D3 was selected for further experiments...
May 12, 2017: Cellular Physiology and Biochemistry
https://www.readbyqxmd.com/read/28526240/endocrine-actions-of-vitamin-d-in-skin-relevance-for-photocarcinogenesis-of-non-melanoma-skin-cancer-and-beyond
#5
REVIEW
Jörg Reichrath, Roman Saternus, Thomas Vogt
The skin represents a pivotal organ for the human body's vitamin D endocrine system, being both the site of ultraviolet (UV)-B-induced vitamin D synthesis and a target tissue for the pluripotent effects of 1,25(OH)2D3 and other biologically active vitamin D metabolites. As many other steroid hormones, 1,25(OH)2D3 exerts its effects via two independent signal transduction pathways: the classical genomic and the non-genomic pathway. While non-genomic effects of 1,25(OH)2D3 are in part exerted via effects on intracellular calcium, genomic effects are mediated by the vitamin D receptor (VDR)...
May 16, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28509123/serum-calcitriol-levels-in-a-patient-with-x-linked-hypophosphatemia-complicated-by-autosomal-dominant-polycystic-kidney-disease
#6
Satomi Kajita, Takehisa Yamamoto, Naoko Tsugawa, Hirohumi Nakayama, Takuo Kubota, Toshimi Michigami, Keiichi Ozono
Serum calcitriol [1,25(OH)2D] levels are low normal in the presence of hypophosphatemia in X-linked dominant hypophosphatemic rickets (XLH) due to elevated serum fibroblast growth factor 23 (FGF23) levels. We report a peculiar finding of markedly elevated serum 1,25(OH)2D levels in a patient with XLH complicated by autosomal dominant polycystic kidney disease (ADPKD) and retinitis pigmentosa (RP). She was diagnosed with XLH, ADPKD and RP at the age of 5, 13 and 15 years, respectively. After the diagnosis of ADPKD, the 1,25(OH)2D levels increased up to 282 pg/mL treated with a pharmacological dose of 1αOHD3 (1αOHD3)...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28506446/serum-24-25-dihydroxyvitamin-d3-response-to-native-vitamin-d2%C3%A2-and%C3%A2-d3-supplementation-in-patients-with-chronic-kidney-disease%C3%A2-on%C3%A2-hemodialysis
#7
Laura A Graeff-Armas, Martin Kaufmann, Elizabeth Lyden, Glenville Jones
BACKGROUND & AIMS: While vitamin D deficiency is common in patients with end stage renal disease on dialysis and treatment with Vitamin D2 and Vitamin D3 is becoming increasingly common in these patients, little is known about 24,25(OH)2D3 metabolite production. Some authors report that the CYP24A1 enzyme is upregulated in CKD, but reports of low serum levels of 24,25(OH)2D3 in these patients bring this into question. Lack of substrate or increased clearance of the metabolite have been proposed as possible causes...
April 30, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28476406/influence-of-cdx2-and-taqi-gene-variants-on-vitamin-d3-modulated-intracellular-chemokine-positive-t-cell-subsets-in-pulmonary-tuberculosis
#8
Murugesan Harishankar, Paramasivam Selvaraj
PURPOSE: We studied the effect of 1,25(OH)2D3 (vitamin D3) on intracellular chemokine-positive T-cell subsets in whole blood cultures of healthy controls and patients with pulmonary tuberculosis. METHODS: Genotyping was performed by the polymerase chain reaction-restriction fragment length polymorphism method. The regulatory role of the Cdx2 and 3'UTR TaqI gene variants on chemokine-positive T-cell subsets was studied from culture filtrate antigen stimulated with or without vitamin D3 treated whole blood cultures of 60 healthy controls and 50 patients with pulmonary tuberculosis...
May 2, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28465245/1-25-dihydroxyvitamin-d3-suppresses-gastric-cancer-cell-growth-through-vdr-and-mutant-p53-mediated-induction-of-p21
#9
Mingxing Li, Longfei Li, Lin Zhang, Wei Hu, Jing Shen, Zhangang Xiao, Xu Wu, Franky Leung Chan, Chi Hin Cho
AIMS: Previous studies have indicated that vitamin D deficiency correlates with cancer risk and vitamin D potentiates antitumor effects in a variety of cancers. The antitumor effect of vitamin D on gastric cancer was rarely studied. We aimed to investigate the antitumor effect of vitamin D on gastric cancer and underlying mechanisms. MAIN METHODS: We investigated the antitumor activity of the active form of vitamin D, 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) on gastric cancer cells (TMK1) and immortalized normal gastric cells (HFE145) by using MTT, colony formation and Flow cytometry assays...
April 29, 2017: Life Sciences
https://www.readbyqxmd.com/read/28463086/vitamin-d-counteracts-an-il-23-dependent-il-17a-ifn%C3%AE-response-driven-by-urban-particulate-matter
#10
Elizabeth H Mann, Tzer-Ren Ho, Paul E Pfeffer, Nick C Matthews, Elfy Chevretton, Ian Mudway, Frank J Kelly, Catherine M Hawrylowicz
Urban particulate matter (UPM) air pollution and vitamin D deficiency are detrimentally associated with respiratory health; this is hypothesised to be due in part to regulation of IL-17A, which UPM is reported to promote. Here we use a myeloid (m)DC-memory CD4+ T cell co-culture system to characterize UPM-driven IL-17A+ cells, investigate the mechanism by which UPM-primed DCs promote this phenotype and address evidence for cross-regulation by vitamin D. CD1c+ mDCs were cultured overnight with or without a reference source of UPM and/or active vitamin D (1,25(OH)2D3) before co-culturing with autologous memory CD4+ T cells...
May 2, 2017: American Journal of Respiratory Cell and Molecular Biology
https://www.readbyqxmd.com/read/28455490/1-25-oh-2d3-protects-liver-fibrosis-through-decreasing-the-generation-of-th17-cells
#11
Lei Gu, Qing Xu, Hui Cao
BACKGROUND The aim of this study was to study the effects of 1-alpha,25-dihydroxy-cholecalcifero (1,25(OH)2D3) on liver fibrosis and the generation of Th17 cells in vivo and in vitro. MATERIAL AND METHODS Thirty C57 mice were randomly divided into control, model, and treatment groups. Hepatic fibrosis was induced by subcutaneous injection of CCl4. Liver fibrosis condition was evaluated through pathological inspection and blood biochemical examination of liver function. Immunohistochemical assays were used to detect the expression of α-SMA, TGF-β, and collagen I to observe hepatic stellate cell activation level...
April 29, 2017: Medical Science Monitor: International Medical Journal of Experimental and Clinical Research
https://www.readbyqxmd.com/read/28433267/dose-response-effects-of-supplementation-with-calcifediol-on-serum-25-hydroxyvitamin-d-status-and-its-metabolites-a-randomized-controlled-trial-in-older-adults
#12
Anouk M M Vaes, Michael Tieland, Margot F de Regt, Jonas Wittwer, Luc J C van Loon, Lisette C P G M de Groot
BACKGROUND & AIMS: Oral supplementation with vitamin D is recommended for older adults to maintain a sufficient 25-hydroxyvitamin D (25(OH)D) status throughout the year. While supplementation with vitamin D2 or D3 is most common, alternative treatment regimens exist which require further investigation with respect to increasing 25(OH)D concentration. We investigated the dose-response effects of supplementation with calcifediol compared to vitamin D3 and assessed the dose which results in mean serum 25(OH)D3 concentrations between 75 and 100 nmol/L...
March 31, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28418012/cyp3a4-is-a-crosslink-between-vitamin-d-and-calcineurin-inhibitors-in-solid-organ-transplant-recipients-implications-for-bone-health
#13
REVIEW
A Prytuła, K Cransberg, A Raes
The use of calcineurin inhibitors (CNIs) and vitamin D deficiency may contribute to the pathogenesis of post-transplant bone disease. CNIs and 1,25-dihydroxyvitamin D₃ (1,25(OH)2D3) are substrates of the drug-metabolizing enzyme CYP3A4. This review summarizes the indications for the use of activated vitamin D analogs in post-transplant care and the current knowledge on the impact of CNIs on bone. We searched for clinical evidence of the interaction between CNIs and 1,25(OH)2D3. We also provide an overview of the literature on the interplay between vitamin D metabolism and CYP3A4 in experimental and clinical settings and discuss its possible implications for solid organ transplant recipients...
April 18, 2017: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/28414049/spotlight-on-vitamin-d-receptor-lipid-metabolism-and-mitochondria-some-preliminary-emerging-issues
#14
REVIEW
Francesca Silvagno, Gianpiero Pescarmona
Transcriptional control and modulation of calcium fluxes underpin the differentiating properties of vitamin D (1,25(OH)2D3). In the latest years however few studies have pointed out the relevance of the mitochondrial effects of the hormone. It is now time to focus on the metabolic results of vitamin D receptor (VDR) action in mitochondria, which can explain the pleiotropic effects of 1,25(OH)2D3 and may elucidate few contrasting aspects of its activity. The perturbation of lipid metabolism described in VDR knockout mice and vitamin D deficient animals can be revisited based on the newly identified mechanism of action of 1,25(OH)2D3 in mitochondria...
April 13, 2017: Molecular and Cellular Endocrinology
https://www.readbyqxmd.com/read/28412624/effects-of-1-25-dihydroxyvitamin-d3-in-an-ovalbumin-induced-allergic-rhinitis-model
#15
Baiwen Chen, Shenhong Qu, Min Li, Linsong Ye, Shaojie Zhang, Taijie Qin, Hua Fan
IL-17-producing Th17 cells play an important role in allergic airway diseases, but their local expression and regulation in allergic rhinitis (AR) is not well understood. This study investigated the effects of 1,25-dihydroxyvitamin D3 (1,25-(OH)2D3) on T-bet expression, Th1 cells, Th2 cells, Th17 cells and IL-33-positive epithelial cells in AR. C57BL/6 mice were intranasally sensitized and challenged with ovalbumin (OVA), and 1,25-(OH)2D3 was intraperitoneally injected into AR mice. Cytokine levels were measured with enzyme-linked immunosorbent assays, phenotypic analysis of Th1, Th2 and Th17 cells in the spleen was completed with flow cytometry, and the CD4(+)IL-17(+) cells in the Nasopharynx-associated lymphoid tissue (NALT) and IL-33-positive cells in nasal mucosa was evaluated with immunofluorescence microscopy...
April 13, 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/28411880/in%C3%A2-vitro-induction-effect-of-1-25-oh-2d3-on-differentiation-of-hair-follicle-stem-cell-into-keratinocyte
#16
Sanaz Joulai Veijouyeh, Farhad Mashayekhi, Abazar Yari, Fatemeh Heidari, Nayereh Sajedi, Fatemeh Moghani Ghoroghi, Maliheh Nobakht
BACKGROUND: Stem cells are characterized by self-renewal and differentiation capabilities. The bulge hair follicle stem cells (HFSCs) are able to convert to epithelial components. The active metabolite of vitamin D, 1,25(OH)2D3, plays important roles in this differentiation process. In the present study has found that 1,25(OH)2D3 induces the HFSCs differentiation into keratinocyte. METHODS: HFSCs are isolated from rat whiskers and cultivated in DMEM medium. To isolate bulge stem cell population, flow cytometry and immunocytochemistry using K15, CD34 and nestin biomarkers were performed...
February 2017: Biomedical Journal
https://www.readbyqxmd.com/read/28399453/structure-activity-relationship-study-of-vitamin-d-analogs-with-oxolane-group-in-their-side-chain
#17
Anna Y Belorusova, Andrea Martínez, Zoila Gándara, Generosa Gómez, Yagamare Fall, Natacha Rochel
Synthetic analogs of 1α,25-dihydroxyvitamin D3 (1,25(OH)2D3) have been developed with the goal of improving the biological profile of the natural hormone for therapeutic applications. Derivatives of 1,25(OH)2D3 with the oxolane moiety branched in the side chain at carbon C20, act as Vitamin D nuclear Receptor (VDR) superagonists being several orders of magnitude more active than the natural ligand. Here, we describe the synthesis and biological evaluation of three diastereoisomers of (1S, 3R)-Dihydroxy-(20S)-[(2″-hydroxy-2″-propyl)-tetrahydrofuryl]-22,23,24,25,26,27-hexanor-1α-hydroxyvitamin D3, with different stereochemistry at positions C2 and C5 of the oxolane ring branched at carbon C22 (1, C2RC5S; 2, C2SC5R; 3, C2SC5S)...
April 2, 2017: European Journal of Medicinal Chemistry
https://www.readbyqxmd.com/read/28395329/vitamin-d-suppresses-oxidative-stress-induced-microparticle-release-by-human-umbilical-vein-endothelial-cells
#18
Xiuyue Jia, Jie Xu, Yang Gu, Xin Gu, Weimin Li, Yuping Wang
Endothelial microparticle (MP) release was increased in numerous cardiovascular diseases including preeclampsia. Oxidative stress is a potent inducer of endothelial dysfunction. In this study, we aimed to investigate if vitamin D could protect endothelial cells (ECs) from MP release induced by oxidative stress. Endothelial cell (from human umbilical vein) oxidative stress was induced by cultivation of cells under lowered oxygen condition (2%O2) for 48 h and cells cultured under standard condition (21%O2) served as control...
January 1, 2017: Biology of Reproduction
https://www.readbyqxmd.com/read/28394106/association-between-serum-vitamin-d-level-and-glaucoma-in-women
#19
Željka Vuković Arar, Marijana Knežević Praveček, Blaženk Miškić, Zoran Vatavuk, Jadranka Vuković Rodriguez, Sandra Sekelj
The aim of the study was to determine whether serum vitamin D level is lower in female patients with glaucoma as compared with control group. The mechanism by which vitamin D reduces intraocular pressure is not fully clarified. Almost all tissues possess vitamin D receptor (VDR). The mice lacking VDR (VDR knockout mice) have greatly contributed to the understanding of the general vitamin D physiologic function. VDR has been found in some ganglion layer cells, external and internal nuclear layers of retina, and in retinal pigment epithelium, while VDR epitopes have also been found in the ciliary body epithelium, pointing to the role of this protein in eye physiology...
June 2016: Acta Clinica Croatica
https://www.readbyqxmd.com/read/28384239/induction-of-osteoblastic-differentiation-of-neural-crest-derived-stem-cells-from-hair-follicles
#20
Eri Urano-Morisawa, Masamichi Takami, Tetsuo Suzawa, Akifumi Matsumoto, Noriko Osumi, Kazuyoshi Baba, Ryutaro Kamijo
The neural crest (NC) arises near the neural tube during embryo development. NC cells migrate throughout the embryo and have potential to differentiate into multiple cell types, such as peripheral nerves, glial, cardiac smooth muscle, endocrine, and pigment cells, and craniofacial bone. In the present study, we induced osteoblast-like cells using whisker follicles obtained from the NC of mice. Hair follicle cells derived from the NC labeled with enhanced green fluorescent protein (EGFP) were collected from protein zero-Cre/floxed-EGFP double transgenic mice and cultured, then treated and cultured in stem cell growth medium...
2017: PloS One
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