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https://www.readbyqxmd.com/read/29782992/single-ultra-high-dose-cholecalciferol-to-prevent-vitamin-d-deficiency-in-pediatric-hematopoietic-stem-cell-transplantation
#1
Gregory Wallace, Sonata Jodele, Kasiani C Myers, Christopher E Dandoy, Javier El-Bietar, Adam Nelson, Ashley Teusink-Cross, Pooja Khandelwal, Cynthia Taggart, Catherine M Gordon, Stella M Davies, Jonathan C Howell
BACKGROUND: Vitamin D (vitD) deficiency is prevalent among childhood hematopoietic stem cell transplantation (HSCT) recipients and associated with inferior transplant survival at 100 days after transplantation. Achieving and maintaining therapeutic vitD levels in HSCT recipients is extremely challenging in the first 3-6 months after transplant due to poor compliance in the setting of mucositis, and concomitant use of critical transplant drugs that interfere with vitD absorption. We sought to evaluate the safety and efficacy of a single, ultra-high dose of vitD given prior to childhood HSCT to maintain levels in a therapeutic range during the peri-transplantation period...
May 18, 2018: Biology of Blood and Marrow Transplantation
https://www.readbyqxmd.com/read/29782935/vitamin-d-status-and-the-risk-of-type-2-diabetes-the-melbourne-collaborative-cohort-study
#2
Alicia K Heath, Elizabeth J Williamson, Allison M Hodge, Peter R Ebeling, Darryl W Eyles, David Kvaskoff, Kerin O'Dea, Graham G Giles, Dallas R English
AIMS: Inverse associations between vitamin D status and risk of type 2 diabetes observed in epidemiological studies could be biased by confounding and reverse causality. We investigated the prospective association between vitamin D status and type 2 diabetes and the possible role of reverse causality. METHODS: We conducted a case-cohort study within the Melbourne Collaborative Cohort Study (MCCS), including a random sample of 628 participants who developed diabetes and a sex-stratified random sample of the cohort (n=1,884)...
May 18, 2018: Diabetes Research and Clinical Practice
https://www.readbyqxmd.com/read/29782843/role-of-nutritional-vitamin-d-in-osteoporosis-treatment
#3
REVIEW
Yi-Chou Hou, Chia-Chao Wu, Min-Tser Liao, Jia-Fwu Shyu, Chi-Feng Hung, Tzung-Hai Yen, Chien-Lin Lu, Kuo-Cheng Lu
Osteoporosis is a systemic skeletal disorder characterized by a decrease in bone mass and microarchitectural deterioration of bone tissue. The World Health Organization has defined osteoporosis as a decrease in bone mass (50%) and bony quality (50%). Vitamin D, a steroid hormone, is crucial for skeletal health and in mineral metabolism. Its direct action on osteoblasts and osteoclasts and interaction with nonskeletal tissues help in maintaining a balance between bone turnover and bone growth. Vitamin D affects the activity of osteoblasts, osteoclasts, and osteocytes, suggesting that it affects bone formation, bone resorption, and bone quality...
May 18, 2018: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/29782010/isolation-of-mesenchymal-stem-cells-from-human-alveolar-periosteum-and-effects-of-vitamin-d-on-osteogenic-activity-of-periosteum-derived-cells
#4
Yen-Li Wang, Adrienne Hong, Tzung-Hai Yen, Hsiang-Hsi Hong
Mesenchymal stem cells (MSCs) are present in a variety of tissues and can be differentiated into numerous cell types, including osteoblasts. Among the dental sources of MSCs, the periosteum is an easily accessible tissue, which has been identified to contain MSCs in the cambium layer. However, this source has not yet been widely studied. Vitamin D3 and 1,25-(OH)2D3 have been demonstrated to stimulate in vitro differentiation of MSCs into osteoblasts. In addition, vitamin C facilitates collagen formation and bone cell growth...
May 4, 2018: Journal of Visualized Experiments: JoVE
https://www.readbyqxmd.com/read/29781720/supplementation-of-vitamin-d-deficiency-in-patients-with-neuroendocrine-tumors-using-over-the-counter-vitamin-d3-preparations
#5
Helen L Robbins, Megan Symington, Barbara Mosterman, Josie Goodby, Louise Davies, Georgios K Dimitriadis, Gregory Kaltsas, Harpal S Randeva, Martin O Weickert
Vitamin D (vit-D) deficiency is highly prevalent in patients with gastro-entero-pancreatic neuroendocrine tumors (GEP-NET) and has been linked to reduced overall survival. We here assessed the vit-D status in 183 patients with GEP-NET at the time of their first presentation in the ARDEN NET Centre. We further examined the effect of simple advice to increase vit-D intake using over-the-counter vit-D preparations [colecalciferol (Vit-D3), 1,000-2,000 units/day], over a prospective observation period of 24 mo...
May 21, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29781719/serum-vitamin-d-status-and-breast-cancer-risk-by-receptor-status-a-systematic-review
#6
Jessica L Tommie, Susan M Pinney, Laurie A Nommsen-Rivers
BACKGROUND: The association between vitamin D status and breast cancer risk is equivocal. No systematic reviews or meta-analyses have examined this association stratified by receptor status. Our objective is to conduct a systematic review to answer the question, "Is there a relationship between lower serum/plasma vitamin D levels and increased risk of triple negative breast cancer (TNBC) specifically?" METHODS: We systematically searched Embase and PubMed databases for published original research studies examining the risk of a breast cancer diagnosis according to vitamin D status...
May 21, 2018: Nutrition and Cancer
https://www.readbyqxmd.com/read/29780360/the-association-between-long-term-acenocoumarol-treatment-and-vitamin-d-deficiency
#7
Jolanta Sawicka-Powierza, Jerzy Konstantynowicz, Ewa Jablonska, Beata Zelazowska-Rutkowska, Wojciech Jelski, Pawel Abramowicz, Caroline Sasinowski, Slawomir Chlabicz
Objective: Both vitamin D and K2 are involved in a number of metabolic processes, including bone metabolism; however, associations between the vitamins are not fully understood. The aim of the study was to evaluate serum concentrations of 25-hydroxyvitamin D [25(OH)D] in adult patients receiving long-term acenocoumarol (AC) treatment. Participants and methods: In this cross-sectional study, 58 Caucasian patients (31 women, 27 men) with a median age of 65 years receiving long-term AC therapy were evaluated and compared with 35 age- and gender-matched healthy controls...
2018: Frontiers in Endocrinology
https://www.readbyqxmd.com/read/29779702/vitamin-d-is-not-useful-as-a-biomarker-for-disease-activity-in-rheumatoid-arthritis
#8
Paola de la Torre Lossa, Mario Moreno Álvarez, María Del Carmen González Guzmán, Rafael López Martínez, Carlos Ríos Acosta
OBJECTIVE: To determine whether there is an association between serum vitamin D levels and the Disease Activity Index in patients with rheumatoid arthritis (RA). METHODOLOGY: An analytical, retrospective, cross-sectional study was performed at the Hospital Luis Vernaza and Center for Rheumatology and Rehabilitation. We included 18 to 75-year-old patients with a diagnosis of RA according to the 2010 classification criteria, and with a 25-hydroxyvitamin D (25 [OH] D) test within the last 3 months...
May 17, 2018: Reumatología Clinica
https://www.readbyqxmd.com/read/29777304/no-improvement-in-vitamin-d-status-in-german-infants-and-adolescents-between-2009-and-2014-despite-public-recommendations-to-increase-vitamin-d-intake-in-2012
#9
Clemens Kunz, Jürgen Hower, Anette Knoll, Kristin L Ritzenthaler, Thomas Lamberti
PURPOSE: Vitamin D is a key component for the growth and development of children and adolescents, influencing a multitude of functions. Worldwide epidemiological studies have shown that minimum vitamin D blood levels of ≥ 20.0 ng/ml, often defined as vitamin D sufficiency by international and national nutrition and pediatric organizations, are often not met in practice. In 2012 the D-A-CH (Germany, Austria, Switzerland) nutrition societies increased their vitamin D intake recommendations fourfold from 200 IU (5 µg) to 800 IU (20 µg) per day...
May 18, 2018: European Journal of Nutrition
https://www.readbyqxmd.com/read/29777240/serum-25-hydroxyvitamin-d-and-cardiovascular-disease-risk-factors-in-women-with-excessive-weight-gain-during-pregnancy-and-in-their-offspring-at-age-5-6-years
#10
Gemma Carreras-Badosa, Cristina Armero-Bujaldón, Laia Solé-Amat, Anna Prats-Puig, Ferran Díaz-Roldán, Pilar Soriano-Rodriguez, Francis de Zegher, Lourdes Ibañez, Judit Bassols, Abel López-Bermejo
BACKGROUND/OBJECTIVE: Low 25-hydroxyvitamin D levels [25(OH)D] may increase the risk for cardiovascular disease (CVD). In pregnant women excessive weight gain and 25(OH)D deficiency are common complications and both could have deleterious consequences on their children. We aimed to study the relationship between serum 25(OH)D and CVD risk factors in pregnant women and in their offspring at school age. SUBJECTS/METHODS: Fasting serum 25(OH)D and its bioavailable fraction were quantified in 310 healthy pregnant women [with adequate (n = 113), insufficient (n = 113) and excessive (n = 84) weight gain]...
May 17, 2018: International Journal of Obesity: Journal of the International Association for the Study of Obesity
https://www.readbyqxmd.com/read/29776863/vitamin-d-in-burn-injured-patients
#11
REVIEW
Megan A Rech, Daniel Colon Hidalgo, Jennifer Larson, Sarah Zavala, Michael Mosier
Recently, many studies have demonstrated pleotropic effects of vitamin D, including immune modulation and cardiovascular system activity. Sufficient vitamin D concentrations and supplementation of vitamin D may be of benefit in burn-injured patients. Low 25(OH)D has been observed in nearly all pediatric and most adult burn patients. Vitamin D has primarily been studied in pediatric burn patients, focusing on bone marker measurements and the incidence of fractures. The preferred vitamin D dose, formulation, and route of administration remain unknown, and there is limited data on the impact of vitamin D status on clinical outcomes...
May 15, 2018: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/29776759/effect-of-vitamin-d-supplementation-on-blood-pressure-parameters-in-patients-with-vitamin-d-deficiency-a-systematic-review-and-meta-analysis
#12
REVIEW
Liqin Shu, Kun Huang
Evidence suggests that supplementation of vitamin D cannot decrease blood pressure in normal populations. However, in randomized controlled trials (RCTs) with vitamin D deficient participants (defined as baseline serum 25[OH]D levels <30 ng/mL or 50 nmol/L), this effect is inconsistent and under debate. Thus, we performed this systematic review and meta-analysis to evaluate whether vitamin D supplementation could affect blood pressure parameters in vitamin D-deficient subjects. The PubMed, Web of Science, ScienceDirect, and Cochrane library databases were searched...
May 9, 2018: Journal of the American Society of Hypertension: JASH
https://www.readbyqxmd.com/read/29775026/-clinical-study-on-serum-25-oh-d-level-in-patients-with-moderate-to-severe-allergic-rhinitis
#13
J Y Tan, T Liu, L X Zhang
Objective: Through the detection of the serum 25 (OH) D level of patients with moderate to severe allergic rhinitis (AR), we preliminarily explored the mechanism of vitamin D on AR and provided evidence for the control of AR. Method: Eighty cases of moderate to severe AR and 65 healthy adults were selected as the subjects. The level of 25 (OH) D was detected by enzyme-linked immunosorbent assay (ELISA), and the serum 25 (OH) D level of eight common serum allergens in patients with moderate to severe AR was analyzed...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29774457/vitamin-d-as-a-follicular-marker-of-human-oocyte-quality-and-a-serum-marker-of-in-vitro-fertilization-outcome
#14
Przemysław Ciepiela, Antoni J Dulęba, Ewelina Kowaleczko, Kornel Chełstowski, Rafał Kurzawa
PURPOSE: This study investigated the relationship between the vitamin D [25(OH)D] level in individual follicles and oocyte developmental competence. METHODS: A prospective cohort study in a private infertility center. Infertile women (N = 198) scheduled for intracytoplasmic sperm injection (ICSI) and a single embryo transfer (SET) provided serum samples and 322 follicular fluid (FF) specimens, each from a single follicle on the day of oocyte retrieval. RESULTS: FFs corresponding to successfully fertilized oocytes (following ICSI) contained significantly lower 25(OH)D level compared with those that were not fertilized (28...
May 17, 2018: Journal of Assisted Reproduction and Genetics
https://www.readbyqxmd.com/read/29773507/the-value-and-significance-of-25-oh-and-1-25-oh-vitamin-d-serum-levels-in-adult-coeliac-patients-a-review-of-the-literature
#15
REVIEW
Fabiana Zingone, Carolina Ciacci
Within the wide spectrum of symptoms and alteration of systems that characterizes CeD, several studies indicate a low-level of vitamin D, therefore recent guidelines suggest its evaluation at the time of diagnosis. This review examines the data from existing studies in which vitamin D has been assessed in CeD patients. Our review indicates that most of the studies on vitamin D in adult CeD report a 25 (OH) vitamin D deficiency at diagnosis that disappears when the patient goes on a gluten-free diet, independently of any supplementation...
April 13, 2018: Digestive and Liver Disease
https://www.readbyqxmd.com/read/29771914/regulation-of-vitamin-d-metabolizing-enzymes-in-murine-renal-and-extrarenal-tissues-by-dietary-phosphate-fgf23-and-1-25-oh-2d3
#16
Larissa Kägi, Carla Bettoni, Eva M Pastor-Arroyo, Udo Schnitzbauer, Nati Hernando, Carsten A Wagner
BACKGROUND: The 1,25-dihydroxyvitamin D3 (1,25(OH)2D3) together with parathyroid hormone (PTH) and fibroblast growth factor 23 (FGF23) regulates calcium (Ca2+) and phosphate (Pi) homeostasis, 1,25(OH)2D3 synthesis is mediated by hydroxylases of the cytochrome P450 (Cyp) family. Vitamin D is first modified in the liver by the 25-hydroxylases CYP2R1 and CYP27A1 and further activated in the kidney by the 1α-hydroxylase CYP27B1, while the renal 24-hydroxylase CYP24A1 catalyzes the first step of its inactivation...
2018: PloS One
https://www.readbyqxmd.com/read/29769814/combined-deficiencies-of-25-hydroxyvitamin-d-and-anemia-in-preschool-children-with-severe-early-childhood-caries-a-case-control-study
#17
Shannon Deane, Robert J Schroth, Atul Sharma, Celia Rodd
Background: Severe early childhood caries (S-ECC) is common and has adverse affects on children's health. Children with S-ECC have been shown to have anemia or vitamin D deficiency. No studies have assessed the presence of combined deficiencies with S-ECC. The purpose of our study was to examine whether those with S-ECC had a higher prevalence of combined anemia and low 25-hydroxyvitamin D (25(OH)D) compared to controls. Covariates associated with elevated parathyroid hormone (PTH), previously noted in S-ECC, were examined...
May 2018: Paediatrics & Child Health
https://www.readbyqxmd.com/read/29769621/vitamin-d-levels-correlate-with-lymphocyte-subsets-in-elderly-patients-with-age-related-diseases
#18
Xudong Mao, Bin Hu, Zhiwen Zhou, Xubin Xing, Yan Wu, Jing Gao, Yue He, Ying Hu, Qihong Cheng, Qing Gong
Hypovitaminosis D is associated with age-related illnesses, including hypertension, cardiovascular disease (CRVD), cerebrovascular disease (CAD) and type 2 diabetes mellitus (T2DM). In our retrospective observational study, blood samples of elderly healthy controls (n = 461) and patients with age-related diseases (n = 8,621) were subjected to flow-cytometry in order to determine correlations between age-related diseases and cluster of differentiation 4 (CD4), CD8, CD3, and CD19 lymphocyte markers, as well as serum levels of 25-hydroxyvitamin D2 (25(OH)D2 ) and 25-hydroxyvitamin D3 (25(OH)D3 )...
May 16, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29769503/vitamin-d-status-in-newly-diagnosed-type-2-diabetes-patients-attending-in-a-tertiary-hospital-of-bangladesh
#19
M S Alam, M Kamrul-Hasan, S T Kalam, S Selim, F Akter, M Saifuddin
Vitamin D deficiency is common in patients with type 2 diabetes mellitus (T2DM). Vitamin D status may have a causal role in the onset of T2DM and may influence glycaemic control in these patients. However, data on vitamin D status among Bangladeshi T2DM patients are scarce. The present cross-sectional study was done among newly diagnosed 50 T2DM patients attending outpatient department of Comilla Diabetic Hospital, Bangladesh to address this lacuna. Serum 25(OH)D was measured in all and classified as normal (≥30ng/mL), insufficient (>20 to 29...
April 2018: Mymensingh Medical Journal: MMJ
https://www.readbyqxmd.com/read/29769136/vitamin-d-and-juvenile-idiopathic-arthritis
#20
REVIEW
Sarah L Finch, Alan M Rosenberg, Hassan Vatanparast
BACKGROUND: Vitamin D has been implicated in the pathogenesis of autoimmune diseases. While the roles of vitamin D in other autoimmune diseases have been investigated, less is known about the role of vitamin D in chronic childhood arthritis. MAIN BODY: This review summarizes and evaluates evidence relating to 25-hydroxyvitamin D (25(OH)D) and chronic childhood arthritis. A scoping literature review was conducted using Ovid Medline, Ovid Embase, Cumulative Index to Nursing and Allied Health Literature, Web of Science and Scopus...
May 16, 2018: Pediatric Rheumatology Online Journal
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