keyword
MENU ▼
Read by QxMD icon Read
search

Vitamine D3

keyword
https://www.readbyqxmd.com/read/28432394/-vitamin%C3%A2-d-and-uv-protection
#1
REVIEW
H Stege, T Schwarz
A high percentage of people present with reduced vitamin D3 levels. Reduced vitamin D3 levels have to be supplemented. Oral supplementation can be performed easily and without significant side effects. Because vitamin D3 can be produced in the skin via ultraviolet B (UVB) irradiation, it is possible to elevate reduced vitamin D3 levels by UVB exposure. However, UVB, which is classified as a complete carcinogen, induces skin cancer. Therefore, UVB irradiation should not be utilized to stimulate vitamin D3 synthesis...
April 21, 2017: Der Hautarzt; Zeitschrift Für Dermatologie, Venerologie, und Verwandte Gebiete
https://www.readbyqxmd.com/read/28430709/vitamin-d3-repressed-astrocyte-activation-following-lipopolysaccharide-stimulation-in-vitro-and-in-neonatal-rats
#2
Ke-Ping Jiao, Shao-Min Li, Wen-Yan Lv, Ming-Liang Jv, Hai-Yan He
Vitamin D3 has been reported to be an immunity modulator and high levels of vitamin D3 are correlated with a decreased risk for developing diseases in the central nervous system. Astrocytes are important immune cells and contribute toward inflammation during neurological diseases. The vitamin D receptor has been reported to be expressed in astrocytes; however, the effect of vitamin D3 on astrocyte activation has not been studied. Here, we found that lipopolysaccharide stimulation in astrocytes could enhance the expression of vitamin D receptor and Cyp27B1, which encodes the enzyme for converting vitamin D3 into its active form...
April 20, 2017: Neuroreport
https://www.readbyqxmd.com/read/28429905/maintenance-vitamin-d3-dosage-requirements-in-chinese-women-with-post-menopausal-osteoporosis-living-in-the-tropics
#3
Yogeswari Venugopal, Sharifah F Wan Muhamad Hatta, Nurbazlin Musa, Siti Abdul Rahman, Jeyakantha Ratnasingam, Sharmila Sunita Paramasivam, Lee Ling Lim, Luqman Ibrahim, Karen Choong, Alexander Tb Tan, Karuthan Chinna, Siew Pheng Chan, Shireene R Vethakkan
BACKGROUND AND OBJECTIVES: Vitamin D3 (cholecalciferol) dose required to maintain sufficiency in non- Caucasian women with postmenopausal osteoporosis (PMO) inthe tropics has not been well studied. Some guidelines mandate 800-1000 IU vitamin D/day but the Endocrine Society (US) advocates 1500-2000 IU/day to maintain 25-hydroxyvitamin-D (25(OH)D) concentration at >75 nmol/L. We aimed to establish oral cholecalciferol dose required to maintain 25(OH)D concentration at >75 nmol/L in PMO Chinese Malaysian women, postulating lower dose requirements amongst light-skinned subjects in the tropics...
May 2017: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28424785/the-impact-of-homocysteine-vitamin-b12-and-vitamin-d-levels-on-functional-outcome-after-first-ever-ischaemic-stroke
#4
Merdin Markišić, Aleksandra M Pavlović, Dragan M Pavlović
We explored the relationship between acute ischaemic stroke (IS) early functional outcome and serum levels of homocysteine, vitamin B12, and D in a noninterventional prospective clinical study. We enrolled 50 patients with first-ever IS and performed laboratory tests and functional assessment at three time points: on admission and three and six months after stroke. Modified Rankin Scale (mRS), NIHSS scale, and Barthel index (BI) scores were assessed in all participants by trained examiner blinded to laboratory data...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28423480/the-effect-of-high-dose-vitamin-d-supplementation-on-muscular-function-and-quality-of-life-in-postmenopausal-women-a-randomized-controlled-trial
#5
G Grimnes, N Emaus, K D Cashman, R Jorde
OBJECTIVE: Observational studies have suggested positive associations between serum 25-hydroxyvitamin D (25(OH)D) levels and muscular strength, balance and quality of life. Our aim was to examine whether high-dose vitamin D supplementation would improve these measures as compared to standard-dose vitamin D, as well as the possible muscular effects of Single Nucleotide Polymorphisms (SNPs) in genes encoding vitamin D-related enzymes. DESIGN: A 12-month randomized, double-blind, controlled trial where the participants received daily elemental calcium (1,000 mg) plus vitamin D3 (800 IU)...
April 19, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28421904/effects-of-1alpha-25-dihydroxyvitamin-d3-on-programmed-cell-death-of-ishikawa-endometrial-cancer-cells-through-ezrin-phosphorylation
#6
Tae-Hee Kim, Junsik Park, Jeong-Sang Lee, Hae-Hyeog Lee
This study investigated the effects of 1α, 25-dihydroxyvitamin D3-induced cell death and its underlying molecular mechanisms in Ishikawa endometrial carcinoma cells. The effects of 1α, 25-dihydroxyvitamin D3 on Ishikawa cells were examined by 3-[4,5-dimethylthiazol-2-yl]-2.5-diphenyl-tetrazolium bromide, thiazolyl blue (MTT) assay. 1α, 25-dihydroxyvitamin D3 was shown to induce programmed cell death in Ishikawa endometrial carcinoma cells by activation of caspase-3 and caspase-9, along with elevation of Bcl-2 and Bcl-xL...
May 2017: Journal of Obstetrics and Gynaecology: the Journal of the Institute of Obstetrics and Gynaecology
https://www.readbyqxmd.com/read/28420693/modulation-of-innate-immunity-of-patients-with-alzheimer-s-disease-by-omega-3-fatty-acids
#7
REVIEW
Milan Fiala, Gijs Kooij, Karen Wagner, Bruce Hammock, Matteo Pellegrini
The innate immune system of patients with Alzheimer's disease and mild cognitive impairment (MCI) is deregulated with highly increased or decreased transcription of inflammatory genes and consistently depressed phagocytosis of amyloid-β1-42 (Aβ) by monocytes and macrophages. Current immune therapies target single mechanisms in the adaptive immune system but not innate immunity. Here, we summarize recent advances in therapy by ω-3, ω-6, and epoxy fatty acids; specialized proresolving mediators; and vitamin D3 that have proven immune effects and emerging cognitive effects in patients with MCI...
April 18, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/28412753/vitamin-d-increases-programmed-death-receptor-1-expression-in-crohn-s-disease
#8
Mia Bendix, Stinne Greisen, Anders Dige, Christian L Hvas, Nina Bak, Søren P Jørgensen, Jens F Dahlerup, Bent Deleuran, Jørgen Agnholt
BACKGROUND: Vitamin D modulates inflammation in Crohn's disease (CD). Programmed death (PD)-1 receptor contributes to the maintenance of immune tolerance. Vitamin D might modulate PD-1 signalling in CD. AIM: To investigate PD-1 expression on T cell subsets in CD patients treated with vitamin D or placebo. METHODS: We included 40 CD patients who received 1200 IU vitamin D3 for 26 weeks or placebo and eight healthy controls. Peripheral blood mononuclear cells (PBMCs) and plasma were isolated at baseline and week 26...
February 18, 2017: Oncotarget
https://www.readbyqxmd.com/read/28409320/vitamin-d-sub-inflammation-and-insulin-resistance-a-window-on-a-potential-role-for-the-interaction-between-bone-and-glucose-metabolism
#9
REVIEW
Stefania Giuliana Garbossa, Franco Folli
Vitamin D is a key hormone involved in the regulation of calcium/phosphorous balance and recently it has been implicated in the pathogenesis of sub-inflammation, insulin resistance and obesity. The two main forms of vitamin D are cholecalciferol (Vitamin D3) and ergocalciferol (Vitamin D2): the active form (1,25-dihydroxyvitamin D) is the result of two hydroxylations that take place in liver, kidney, pancreas and immune cells. Vitamin D increases the production of some anti-inflammatory cytokines and reduces the release of some pro-inflammatory cytokines...
April 13, 2017: Reviews in Endocrine & Metabolic Disorders
https://www.readbyqxmd.com/read/28404701/diagnosis-and-management-of-psoriasis
#10
REVIEW
Whan B Kim, Dana Jerome, Jensen Yeung
OBJECTIVE: To provide primary care clinicians with an up-to-date and practical overview of the diagnosis and management of psoriasis. QUALITY OF EVIDENCE: PubMed, MEDLINE, EMBASE, and Cochrane databases were searched for relevant meta-analyses, randomized controlled trials, systematic reviews, and observational studies about the diagnosis and management of psoriasis. MAIN MESSAGE: Psoriasis is a chronic, multisystem inflammatory disease with predominantly skin and joint involvement...
April 2017: Canadian Family Physician Médecin de Famille Canadien
https://www.readbyqxmd.com/read/28403943/plasma-metabolomics-in-adults-with-cystic-fibrosis-during-a-pulmonary-exacerbation-a-pilot-randomized-study-of-high-dose-vitamin-d3-administration
#11
RANDOMIZED CONTROLLED TRIAL
Jessica A Alvarez, Elizabeth Y Chong, Douglas I Walker, Joshua D Chandler, Ellen S Michalski, Ruth E Grossmann, Karan Uppal, Shuzhao Li, Jennifer K Frediani, Rabindra Tirouvanziam, ViLinh T Tran, Vin Tangpricha, Dean P Jones, Thomas R Ziegler
BACKGROUND: Cystic fibrosis (CF) is a chronic catabolic disease often requiring hospitalization for acute episodes of worsening pulmonary exacerbations. Limited data suggest that vitamin D may have beneficial clinical effects, but the impact of vitamin D on systemic metabolism in this setting is unknown. OBJECTIVE: We used high-resolution metabolomics (HRM) to assess the impact of baseline vitamin D status and high-dose vitamin D3 administration on systemic metabolism in adults with CF with an acute pulmonary exacerbation...
May 2017: Metabolism: Clinical and Experimental
https://www.readbyqxmd.com/read/28403556/assessment-of-endogenous-25-hydroxyvitamin-d-serum-concentrations-by-liquid-chromatography-tandem-mass-spectrometry-in-various-animal-species
#12
Carol A Fritz, Kimberly A Navetta, David P Wolford, Jennifer L Colangelo
BACKGROUND: Mass spectrometry (MS) has become the preferential method for the analysis of vitamin D in the clinic, yet no single platform is utilized for preclinical species in drug development studies. For vitamin D, the MS platform can provide certain benefits such as applicability of a single assay for multiple species, low cost, and high specificity. OBJECTIVES: A quantitative liquid chromatography-tandem MS (LC-MS/MS) assay for 25-hydroxyvitamin D3 (25OHD3 ) and D2 (25OHD2 ) was validated for rat, dog, mouse, and monkey, and suitability for drug development studies was assessed...
April 12, 2017: Veterinary Clinical Pathology
https://www.readbyqxmd.com/read/28400827/effects-of-vitamin-d-deficiency-treatment-on-metabolic-markers-in-hashimoto-thyroiditis-patients
#13
Parichehr Vahabi Anaraki, Ashraf Aminorroaya, Massoud Amini, Awat Feizi, Bijan Iraj, Azamosadat Tabatabaei
BACKGROUND: The aim of the current trial was to investigate the effect of Vitamin D treatment on metabolic markers in people with Vitamin D deficiency and thyroid autoimmunity. MATERIALS AND METHODS: In this double-blind, randomized, placebo-controlled clinical trial, 65 Vitamin D deficient euthyroid or hypothyroid patients with positive TPO-Ab were enrolled. They randomly allocated into two groups to receive oral Vitamin D3 (50000 IU weekly) and placebo for 12 weeks...
2017: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/28399453/structure-activity-relationship-study-of-vitamin-d-analogs-with-oxolane-group-in-their-side-chain
#14
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/28398098/mapk-signaling-has-stage-dependent-osteogenic-effects-on-human-adipose-derived-stem-cells-in-vitro
#15
Eric J Tsang, Benjamin Wu, Patricia Zuk
PURPOSE: The use of pro-osteogenic growth factors, such as BMP2, in human adipose-derived stem cell (ASC) osteogenesis is well described. Because these growth factors work via signal transduction pathways, such as the mitogen-activated protein kinase (MAPK) cascade, a study of the relationship between MAPK signaling and ASC osteogenesis was conducted. METHODS: ERK, JNK, and p38MAPK activation were measured in ASCs osteo-induced using either dexamethasone or vitamin D3 and correlated to mineralization...
April 11, 2017: Connective Tissue Research
https://www.readbyqxmd.com/read/28393662/cholecalciferol-20-000-iu-once-weekly-in-hiv-positive-patients-with-low-vitamin-d-levels-result-from-a-cohort-study
#16
Sebastian Noe, Silke Heldwein, Rita Pascucchi, Celia Oldenbüttel, C Wiese, Ariane von Krosigk, Eva Jägel-Guedes, Hans Jäger, Wolfgang Mayer, Christoph D Spinner, Eva Wolf
PURPOSE: To evaluate efficacy and safety of 20 000 IU cholecalciferol weekly in HIV-infected patients. METHODS: Longitudinal data for 243 HIV-infected patients with paired 25-OH-vitamin D3 values for the same month in 2 consecutive years were stratified by the initiation of supplementation in this retrospective study. RESULTS: After 1 year of administration of cholecalciferol 20 000 IU weekly, about 78% of patients with initial vitamin D level <20 µg/L achieved vitamin D levels >20 µg/L and 42% achieved levels >30 µg/L...
January 1, 2017: Journal of the International Association of Providers of AIDS Care
https://www.readbyqxmd.com/read/28393228/microarray%C3%A2-based-screening-of-differentially-expressed-genes-in-glucocorticoid%C3%A2-induced-avascular-necrosis
#17
Gangyong Huang, Yibing Wei, Guanglei Zhao, Jun Xia, Siqun Wang, Jianguo Wu, Feiyan Chen, Jie Chen, Jingshen Shi
The underlying mechanisms of glucocorticoid (GC)‑induced avascular necrosis of the femoral head (ANFH) have yet to be fully understood, in particular the mechanisms associated with the change of gene expression pattern. The present study aimed to identify key genes with a differential expression pattern in GC‑induced ANFH. E‑MEXP‑2751 microarray data were downloaded from the ArrayExpress database. Differentially expressed genes (DEGs) were identified in 5 femoral head samples of steroid‑induced ANFH rats compared with 5 placebo‑treated rat samples...
April 5, 2017: Molecular Medicine Reports
https://www.readbyqxmd.com/read/28392936/25-oh-d-status-effect-of-d3-supplement
#18
J M Lukaszuk, P E Luebbers
BACKGROUND: Excess adipose tissue may lead to sequestrating of vitamin D, making it less available for use in the body. OBJECTIVE: This study determined if overweight or obese individuals (BMI > 25 kg m(-2)) had insufficient (<30 ng mL(-1)) levels of 25-hydroxyvitamin D [25(OH)D] and, if so, would serum levels respond to exogenous supplementation. METHODS: Sixty-three women who were overweight/obese (BMI = 31.07 ± 5...
March 2017: Obesity Science & Practice
https://www.readbyqxmd.com/read/28389419/rationale-and-design-of-khuzestan-vitamin-d-deficiency-screening-program-in-pregnancy-a-stratified-randomized-vitamin-d-supplementation-controlled-trial
#19
Maryam Rostami, Fahimeh Ramezani Tehrani, Masoumeh Simbar, Farhad Hosseinpanah, Hamid Alavi Majd
BACKGROUND: Although there have been marked improvements in our understanding of vitamin D functions in different diseases, gaps on its role during pregnancy remain. Due to the lack of consensus on the most accurate marker of vitamin D deficiency during pregnancy and the optimal level of 25-hydroxyvitamin D, 25(OH)D, for its definition, vitamin D deficiency assessment during pregnancy is a complicated process. Besides, the optimal protocol for treatment of hypovitaminosis D and its effect on maternal and neonatal outcomes are still unclear...
April 7, 2017: JMIR Research Protocols
https://www.readbyqxmd.com/read/28389358/microrna-125b-inhibits-aml-cells-differentiation-by-directly-targeting-fes
#20
Jinhang Hu, Lufeng Zheng, Xiao Shen, Yan Zhang, Cheng Li, Tao Xi
MicroRNA-125b (miR-125b) has been reported to be upregulated in several kinds of leukemia, suggesting that miR-125b plays a role in Leukemia development. In this study, it was shown that miR-125b expression level decreased in response to 1α, 25-dihydroxy-vitamin D3 (1,25D3) in a dose- and time-dependent manner and miR-125b blocked 1,25D3-induced monocytic differentiation of U937 cells. In addition, miR-125b decreased mRNA expression of myelomonocytic differentiation markers, including CD11c, CD18 and CD64 and arrested the cell cycle at the S phase in U937 and HL60 cells...
April 4, 2017: Gene
keyword
keyword
53350
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"