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Cholecalciferol

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https://www.readbyqxmd.com/read/28187226/effects-of-cholecalciferol-vs-calcifediol-on-total-and-free-25-hydroxyvitamin-d-and-parathyroid-hormone
#1
Albert Shieh, Christina Ma, Rene F Chun, Sten Witzel, Brandon Rafison, Hannah Tm Contreras, Jonas Wittwer-Schegg, Leon Swinkels, Tonnie Huijs, Martin Hewison, John S Adams
No abstract text is available yet for this article.
February 10, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/28183335/efficacy-of-vitamin-d3-supplementation-in-reducing-incidence-of-pulmonary-tuberculosis-and-mortality-among-hiv-infected-tanzanian-adults-initiating-antiretroviral-therapy-study-protocol-for-a-randomized-controlled-trial
#2
Christopher R Sudfeld, Ferdinand Mugusi, Said Aboud, Tumaini J Nagu, Molin Wang, Wafaie W Fawzi
BACKGROUND: HIV-infected adults initiating antiretroviral therapy (ART) in sub-Saharan Africa continue to experience high rates of morbidity and mortality during the initial months of treatment. Observational studies in high-income and resource-limited settings indicate that HIV-infected adults with low vitamin D levels may be at increased risk of mortality, HIV disease progression, and incidence of pulmonary tuberculosis (TB). As a result, vitamin D3 supplementation may improve survival and treatment outcomes for HIV-infected adults initiating ART...
February 10, 2017: Trials
https://www.readbyqxmd.com/read/28167237/does-high-dose-vitamin-d-supplementation-enhance-cognition-a-randomized-trial-in-healthy-adults
#3
Jacqueline A Pettersen
BACKGROUND: Insufficiency of 25-hydroxyvitamin D [25(OH)D] has been associated with dementia and cognitive decline. However, the effects of vitamin D supplementation on cognition are unclear. It was hypothesized that high dose vitamin D3 supplementation would result in enhanced cognitive functioning, particularly among adults whose 25(OH)D levels were insufficient (<75nmol/L) at baseline. METHODS: Healthy adults (n=82) from northern British Columbia, Canada (54° north latitude) with baseline 25(OH)D levels ≤100nmol/L were randomized and blinded to High Dose (4000IU/d) versus Low Dose (400IU/d) vitamin D3 (cholecalciferol) for 18weeks...
February 3, 2017: Experimental Gerontology
https://www.readbyqxmd.com/read/28164126/the-involvement-of-mir-29b-3p-in-arterial-calcification-by-targeting-matrix-metalloproteinase-2
#4
Wenhong Jiang, Zhanman Zhang, Han Yang, Qiuning Lin, Chuangye Han, Xiao Qin
Vascular calcification is a risk predictor and common pathological change in cardiovascular diseases that are associated with elastin degradation and phenotypic transformation of vascular smooth muscle cells via gelatinase matrix metalloproteinase-2 (MMP2). However, the mechanisms involved in this process remain unclear. In this study, we investigated the relationships between miR-29b-3p and MMP2, to confirm miR-29b-3p-mediated MMP2 expression at the posttranscriptional level in arterial calcification. In male Sprague Dawley rats, arterial calcification was induced by subcutaneous injection of a toxic dose of cholecalciferol...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28161530/effects-of-cholecalciferol-supplementation-on-serum-and-urinary-vitamin-d-metabolites-and-binding-protein-in-hiv-infected-youth
#5
Allison Ross Eckard, Myrtle Thierry-Palmer, Natalia Silvestrov, Julia C Rosebush, Ann Mary O'Riordan, Julie E Daniels, Monika Uribe Leitz, Danielle Labbato, Joshua H Ruff, Ravinder J Singh, Vin Tangpricha, Grace A McComsey
Vitamin D insufficiency is widespread in HIV-infected patients. HIV and/or antiretroviral therapy (ART), particularly efavirenz (EFV), may interfere with vitamin D metabolism. However, few data from randomized, controlled trials exist. Here, we investigate changes in vitamin D metabolites and binding protein (VDBP) after 6 months of supplementation in a randomized, active-control, double-blind trial investigating 2 different monthly cholecalciferol (vitamin D3) doses [60,000 (medium) or 120,000 (high) IU/month] vs...
February 1, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28161119/monthly-oral-ibandronate-reduces-bone-loss-in-korean-women-with-rheumatoid-arthritis-and-osteopenia-receiving-long-term-glucocorticoids-a-48-week-double-blinded-randomized-placebo-controlled-investigator-initiated-trial
#6
Kichul Shin, Sung-Hwan Park, Won Park, Han Joo Baek, Yun Jong Lee, Seong Wook Kang, Jung-Yoon Choe, Wan-Hee Yoo, Yong-Beom Park, Jung-Soo Song, Seung-Geun Lee, Bin Yoo, Dae-Hyun Yoo, Yeong Wook Song
PURPOSE: Our aim was to investigate the efficacy of monthly oral ibandronate in Korean women with rheumatoid arthritis and reduced bone mineral density (BMD) receiving long-term glucocorticoids. METHODS: Patients (n = 167 women) were randomly assigned (1:1) to receive ibandronate 150 mg or placebo every 4 weeks. Patients had taken glucocorticoid (equivalent of daily prednisolone ≥5 mg) for 3 or more consecutive months before enrollment, and had a lumbar spine 1 to 4 (L1-L4) T-score of < -1...
February 1, 2017: Clinical Therapeutics
https://www.readbyqxmd.com/read/28130182/induction-of-cftr-gene-expression-by-1-25-oh-2-vitamin-d3-25oh-vitamin-d3-and-vitamin-d3-in-cultured-human-airway-epithelial-cells-and-in-mouse-airways
#7
Kristina M DiFranco, Jennifer K Mulligan, Aman S Sumal, Gill Diamond
Cystic fibrosis (CF) is an autosomal recessive disorder caused by mutations in the cystic fibrosis transmembrane conductance regulator (CFTR) gene, which often leads to protein misfolding and no CFTR surface localization. This then leads to chronic airway infections, inflammation, and tissue damage. Although vitamin D has been explored as a therapy to treat CF due to its antimicrobial-inducing and anti-inflammatory properties, the effect of 1,25-dihydroxyvitamin D3 (1α,25(OH)2D3) on CFTR directly has not been studied...
January 24, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28114352/pharmacokinetic-evaluation-of-a-single-intramuscular-high-dose-versus-an-oral-long-term-supplementation-of-cholecalciferol
#8
Katharina Wylon, Gennadiy Drozdenko, Alexander Krannich, Guido Heine, Sabine Dölle, Margitta Worm
BACKGROUND AND OBJECTIVES: Vitamin D deficiency is frequent during the winter and occurs throughout the year in the elderly or patients suffering from autoimmune diseases. The objective of this study was to evaluate the pharmacokinetic properties of oral supplementation versus a single intramuscular injection of cholecalciferol in healthy individuals. RESEARCH DESIGN AND METHODS: Up to 8,000 I.U. oral cholecalciferol was administered daily for 84 days in a 4 week dose-escalation setting to vitamin D deficient individuals...
2017: PloS One
https://www.readbyqxmd.com/read/28105733/vitamin-d-supplementation-for-sickle-cell-disease
#9
REVIEW
Htoo Htoo Kyaw Soe, Adinegara Bl Abas, Nan Nitra Than, Han Ni, Jaspal Singh, Abdul Razzak Bin Mohd Said, Ifeyinwa Osunkwo
BACKGROUND: Sickle cell disease is a genetic chronic haemolytic and pro-inflammatory disorder. The clinical manifestations of sickle cell disease result from the presence of mutations on the beta globin genes that generate an abnormal haemoglobin product (called haemoglobin S) within the red blood cell. Sickle cell disease can lead to many complications such as acute chest syndrome, stroke, acute and chronic bone complications (including painful vaso-occlusive crisis, osteomyelitis, osteonecrosis and osteoporosis)...
January 20, 2017: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/28095046/does-vitamin-d-metabolite-measurement-help-predict-25-oh-d-change-following-vitamin-d-supplementation
#10
Neil Binkley, Gretta Borchardt, Ellen Siglinsky, Diane Krueger
OBJECTIVE: Variability in 25(OH)D change following vitamin D supplementation exists. Vitamin D metabolite measurement might assist in predicting 25(OH)D response and also contribute to defining vitamin D adequacy. This study assessed utility of vitamin D metabolite measurements to predict 25(OH)D response and explored the relationship of a "vitamin D composite index" (comprised of the sum of serum 25(OH) D, vitamin D3 and 24,25(OH)2D) with PTH. METHODS: Sixty-two postmenopausal women were randomized to daily vitamin D3 1,800 IU or placebo for 4 months...
January 17, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/28070764/serum-25-oh-vitamin-d-levels-in-systemic-sclerosis-analysis-of-140-patients-and-review-of-the-literature
#11
Dilia Giuggioli, M Colaci, G Cassone, P Fallahi, F Lumetti, A Spinella, F Campomori, A Manfredi, C U Manzini, A Antonelli, C Ferri
Hypovitaminosis D is increasingly reported in autoimmune diseases. We investigated the 25-OH-vitamin D (25-OH-vitD) levels in systemic sclerosis (SSc) patients, in correlation with disease's features. We measured the 25-OH-vitD serum levels in 140 consecutive patients (F/M 126/15; mean age 61 ± 15.1 years), 91 without (group A) and 49 with (group B) 25-OH-cholecalciferol supplementation. Patients of group A invariably showed low 25-OH-vitD levels (9.8 ± 4.1 ng/ml vs. 26 ± 8.1 ng/ml of group B); in particular, 88/91 (97%) patients showed vitamin D deficiency (<20 ng/ml), with very low vitamin D levels (<10 ng/ml) in 40 (44%) subjects...
January 9, 2017: Clinical Rheumatology
https://www.readbyqxmd.com/read/28065190/cholecalciferol-v-ergocalciferol-for-25-hydroxyvitamin-d-25-oh-d-repletion-in-chronic-kidney-disease-a-randomised-clinical-trial
#12
James B Wetmore, Cassandra Kimber, Jonathan D Mahnken, Jason R Stubbs
Patients with chronic kidney disease (CKD) demonstrate complex mineral metabolism derangements and a high prevalence of vitamin D deficiency. However, the optimal method of 25-hydroxyvitamin D (25(OH)D) repletion is unknown, and trials analysing the comparative efficacy of cholecalciferol and ergocalciferol in this population are lacking. We conducted a randomised clinical trial of cholecalciferol 1250μg (50 000 IU) weekly v. ergocalciferol 1250μg (50 000 IU) weekly for 12 weeks in forty-four non-dialysis-dependent patients with stage 3-5 CKD...
December 2016: British Journal of Nutrition
https://www.readbyqxmd.com/read/28063949/vitamin-d-supplementation-inhibits-oxidative-stress-and-upregulate-sirt1-ampk-glut4-cascade-in-high-glucose-treated-3t3l1-adipocytes-and-in-adipose-tissue-of-high-fat-diet-fed-diabetic-mice
#13
Prasenjit Manna, Arunkumar E Achari, Sushil K Jain
This study examined the hypothesis that vitamin-D prevents oxidative stress and upregulates glucose metabolism via activating insulin-independent signaling molecules in 3T3-L1 adipocytes and in high fat diet (HFD)-fed mice. To investigate the mechanism 3T3L1 adipocytes were treated with high glucose (HG, 25 mM) and 1,25(OH)2D3 (1,25-dihydroxyvitamin D3) (0-50 nM). Results showed that 1,25(OH)2D3 supplementation decreased NOX4 expression, ROS production, NF-κB phosphorylation, and increased the expression of Nrf2 and Trx in HG-treated cells...
January 4, 2017: Archives of Biochemistry and Biophysics
https://www.readbyqxmd.com/read/28054941/effects-of-chronic-vitamin-d%C3%A2-hormone-administration-on-anxiety-like-behavior-in-adult-female-rats-after-long-term-ovariectomy
#14
Julia Fedotova, Svetlana Pivina, Anastasia Sushko
The present preclinical study was created to determine the therapeutic effects of vitamin D hormone treatment as an adjunctive therapy alone or in a combination with low dose of 17β-estradiol (17β-E₂) on anxiety-like behavior in female rats with long-term absence of estrogen. Accordingly, the aim of the current study was to examine the effects of chronic cholecalciferol administration (1.0, 2.5 or 5.0 mg/kg subcutaneously, SC, once daily, for 14 days) on the anxiety-like state after long-term ovariectomy in female rats...
January 3, 2017: Nutrients
https://www.readbyqxmd.com/read/28035222/serum-vitamin-d-level-the-effect-on-the-clinical-course-of-psoriasis
#15
Beata Bergler-Czop, Ligia Brzezińska-Wcisło
INTRODUCTION: Psoriasis is a hyperproliferative disorder of the skin, and vitamin D analogs are widely used in its treatment. It is evident that ultraviolet radiation enables vitamin D3 (cholecalciferol) formation in the epidermis, and this product is further converted into the active metabolites 25-hydroxycholecalciferol and 1,25-hydroxycholecalciferol, which exert several important effects on the skin. The disruption in proper functioning of the skin which occurs in psoriasis leads to a loss of capacity for cutaneous synthesis of vitamin D3...
December 2016: Postȩpy Dermatologii i Alergologii
https://www.readbyqxmd.com/read/28033263/hypovitaminosis-d-and-small-burden-uterine-fibroids-opportunity-for-a-vitamin-d-supplementation
#16
Andrea Ciavattini, Giovanni Delli Carpini, Matteo Serri, Arianna Vignini, Jacopo Sabbatinelli, Alessandra Tozzi, Alice Aggiusti, Nicolò Clemente
The aim of this study was to evaluate the effect of vitamin D supplementation in women with hypovitaminosis D and "small burden" uterine fibroids.This study focused on 208 women diagnosed with uterine fibroids and concomitant hypovitaminosis D, from January to December 2014. One hundred eight women of the initial study population were diagnosed with "small burden" uterine fibroids. Among them, those who underwent a proper vitamin D supplementation constituted the "study group" (n = 53), while women who spontaneously refused the therapy or did not perform it properly, constituted the "control group" (n = 55)...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28033244/effect-of-vitamin-d3-on-self-perceived-fatigue-a-double-blind-randomized-placebo-controlled-trial
#17
RANDOMIZED CONTROLLED TRIAL
Albina Nowak, Lukas Boesch, Erik Andres, Edouard Battegay, Thorsten Hornemann, Christoph Schmid, Heike A Bischoff-Ferrari, Paolo M Suter, Pierre-Alexandre Krayenbuehl
BACKGROUND: Vitamin D deficiency is frequent and has been associated with fatigue in uncontrolled trials. METHODS: This is the first double-blind placebo-controlled clinical trial to investigate the efficacy of per os vitamin D3 (cholecalciferol) in treating fatigue among otherwise healthy persons with low serum 25-hydroxyvitamin D (25(OH)D) levels. We enrolled 120 individuals (mean age 29 ± 6 years, 53% women) presenting with fatigue and vitamin D deficiency (serum 25(OH)D < 20 μg/L)...
December 2016: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28013381/pilot-study-of-the-effect-of-cholecalciferol-supplementation-on-hepcidin-in-children-with-chronic-kidney-disease-results-of-the-d-fense-trial
#18
Meredith A Atkinson, Stephen P Juraschek, Michael S Bertenthal, Barbara Detrick, Susan L Furth, Edgar R Miller
BACKGROUND: Hepcidin is a key mediator of the anemia of chronic kidney disease (CKD). There is emerging evidence that 25-hydroxyvitamin D (25D) regulates hepcidin production. METHODS: A randomized controlled trial of daily vitamin D supplementation for 12 weeks was performed with the aim to test the effects of 4000 versus 400 IU of cholecalciferol on serum hepcidin levels in children with non-dialysis CKD recruited at a tertiary care children's hospital. Hepcidin was quantified using a validated competitive enzyme-linked immunosorbent assay...
December 24, 2016: Pediatric Nephrology: Journal of the International Pediatric Nephrology Association
https://www.readbyqxmd.com/read/28005440/effect-of-a-single-dose-vitamin-d3-on-postprandial-arterial-stiffness-and-inflammation-in-vitamin-d-deficient-women
#19
Marijke A de Vries, Noëlle van der Meulen, Gert-Jan M van de Geijn, Boudewijn Klop, Ellen M van der Zwan, Lenneke Prinzen, Erwin Birnie, Elsbeth M Westerman, Wouter W de Herder, Manuel Castro Cabezas
CONTEXT: Cholecalciferol (vitamin D3) may improve vascular function and reduce inflammation, potentially providing an explanation for the proposed cardiovascular protection by vitamin D . OBJECTIVE: We investigated whether cholecalciferol supplementation reduces postprandial arterial dysfunction and inflammation. DESIGN: This was a randomized 1:1, double blind trial. SETTING: The study was conducted in the Diabetes and Vascular Center of the Franciscus Gasthuis, Rotterdam, The Netherlands...
December 22, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27999642/benefits-from-the-correction-of-vitamin-d-deficiency-in-patients-with-pulmonary-hypertension
#20
Ahmad Mirdamadi, Pouya Moshkdar
BACKGROUND: Vitamin D (Vit D) is linked to various conditions including musculoskeletal, metabolic and cardiopulmonary diseases. However, it is not clear whether correction of vit D deficiency exerts any beneficial effect in patients with pulmonary hypertension. METHODS: This study was a prospective uncontrolled longitudinal study. Patients with pulmonary hypertension and vit D deficiency were enrolled into this study. All patients in addition to standard treatment for pulmonary hypertension received cholecalciferol at a dose of 50,000 IU weekly plus calcicare (at a dose of 200 mg magnesium + 8 mg zinc + 400 IU vit D) daily for 3 months...
2016: Caspian Journal of Internal Medicine
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