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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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/29772182/oxidation-of-cr-iii-fe-iii-mixed-phase-hydroxides-by-chlorine-implications-on-the-control-of-hexavalent-chromium-in-drinking-water
#8
Michelle Chebeir, Haizhou Liu
The occurrence of chromium (Cr) as an inorganic contaminant in drinking water is widely reported. One source of Cr is its accumulation in iron-containing corrosion scales of drinking water distribution systems as Cr(III)-Fe(III) hydroxide, i.e., FexCr(1-x)(OH)3(s), where x represents the Fe(III) molar content and typically varies between 0.25 and 0.75. This study investigated the kinetics of inadvertent hexavalent chromium Cr(VI) formation via the oxidation of FexCr(1-x)(OH)3(s) by chlorine as a residual disinfectant in drinking water, and examined the impacts of Fe(III) content and drinking water chemical parameters including pH, bromide and bicarbonate on the rate of Cr(VI) formation...
May 17, 2018: Environmental Science & Technology
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
#9
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
#10
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
#11
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
#12
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
#13
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
https://www.readbyqxmd.com/read/29768922/water-dissociates-at-the-aqueous-interface-with-reduced-anatase-tio-2-101
#14
Immad M Nadeem, Jon P W Treacy, Sencer Selcuk, Xavier Torrelles, Hadeel Hussain, Axel Wilson, David C Grinter, Gregory Cabailh, Oier Bikondoa, Chris Nicklin, Annabella Selloni, Jörg Zegenhagen, Robert Lindsay, Geoff Thornton
Elucidating the structure of the interface between natural (reduced) anatase TiO2 (101) and water is an essential step towards understanding the associated photo-assisted water splitting mechanism. Here we present surface X-ray diffraction results for the room temperature interface with ultra-thin and bulk water, which we explain by reference to density functional theory calculations. We find that both interfaces contain a 25:75 mixture of molecular H2 O and terminal OH bound to titanium atoms along with bridging OH species in the contact layer...
May 16, 2018: Journal of Physical Chemistry Letters
https://www.readbyqxmd.com/read/29765741/crystal-structure-and-hirshfeld-surface-analysis-of-3-cyano-phenyl-boronic-acid
#15
A Jaquelin Cárdenas-Valenzuela, Gerardo González-García, Ramón Zárraga-Nuñez, Herbert Höpfl, José J Campos-Gaxiola, Adriana Cruz-Enríquez
In the title compound, C7 H6 BNO2 , the mean plane of the -B(OH)2 group is twisted by 21.28 (6)° relative to the cyano-phenyl ring mean plane. In the crystal, mol-ecules are linked by O-H⋯O and O-H⋯N hydrogen bonds, forming chains propagating along the [101] direction. Offset π-π and B⋯π stacking inter-actions link the chains, forming a three-dimensional network. Hirshfeld surface analysis shows that van der Waals inter-actions constitute a further major contribution to the inter-molecular inter-actions, with H⋯H contacts accounting for 25...
April 1, 2018: Acta Crystallographica. Section E, Crystallographic Communications
https://www.readbyqxmd.com/read/29765521/long-term-deficiency-of-vitamin-d-in-germ-cell-testicular-cancer-survivors
#16
Lucia Nappi, Margaret Ottaviano, Pasquale Rescigno, Ladan Fazli, Martin E Gleave, Vincenzo Damiano, Sabino De Placido, Giovannella Palmieri
Background: Cisplatin-based chemotherapy significantly improved the survival of patients with germ cell testicular cancer. However, long term side effects of chemotherapy have non-negligible impact on the quality of life of these young patients, who have a long life expectancy after being successfully treated. Materials and Methods: 25-OH vitamin D, testosterone, FSH and LH of patients with testicular cancer were retrospectively evaluated and for each patient clinical information were collected...
April 20, 2018: Oncotarget
https://www.readbyqxmd.com/read/29764903/vitamin-d-supplementation-does-not-improve-cvd-risk-factors-in-vitamin-d-insufficient-subjects
#17
Julia Magdalena Kubiak, Per Medbøe Thorsby, Elena Kamycheva, Rolf Jorde
OBJECTIVE: Low serum 25(OH)D levels are associated with cardiovascular disease (CVD) and some of its risk factors. However, in interventional studies the effects of vitamin D supplementation have been uncertain, possibly due to inclusion of vitamin D sufficient subjects. Our aim was therefore to examine effects of vitamin D supplementation on CVD risk factors in vitamin D insufficient subjects. DESIGN: Double-blinded randomized controlled trial. METHODS: A four months interventional study with high dose vitamin D (100 000 IU loading dose, followed by 20 000 IU/week) or placebo with measurements of blood pressure, lipids (total-, LDL- and HDL-cholesterol, triglycerides, apolipoproteins A1 and B), and glucose metabolism parameters (blood glucose, HbA1c, sRAGE, insulin, C-peptide, and HOMA-IR)...
May 15, 2018: Endocrine Connections
https://www.readbyqxmd.com/read/29764762/analysis-of-plasma-albumin-vitamin-d-and-apolipoproteins-a-and-b-as-predictive-coronary-risk-biomarkers-in-the-regicor-study
#18
Gabriel Vázquez-Oliva, Alberto Zamora, Rafel Ramos, Isaac Subirana, María Grau, Irene R Dégano, Daniel Muñoz, Montserrat Fitó, Roberto Elosua, Jaume Marrugat
INTRODUCTION AND OBJECTIVES: New biomarkers could improve the predictive capacity of classic risk functions. The aims of this study were to determine the association between circulating levels of apolipoprotein A1 (apoA1), apolipoprotein B (apoB), albumin, and 25-OH-vitamin D and coronary events and to analyze whether these biomarkers improve the predictive capacity of the Framingham-REGICOR risk function. METHODS: A case-cohort study was designed. From an initial cohort of 5404 individuals aged 35 to 74 years with a 5-year follow-up, all the participants who had a coronary event (n = 117) and a random group of the cohort (subcohort; n = 667) were selected...
May 12, 2018: Revista Española de Cardiología
https://www.readbyqxmd.com/read/29763293/enhancing-oxygen-evolution-electrocatalysis-via-the-intimate-hydroxide-oxide-interface
#19
Dandan Zhao, Yecan Pi, Qi Shao, Yonggang Feng, Ying Zhang, Xiaoqing Huang
The development of electrocatalysts with high activity and stability for oxygen evolution reaction (OER) is critically important, the one being regarded as the bottleneck process of overall water splitting. Herein, we fulfill significant OER improvement in both activity and stability by constructing a class of Ni(OH)2 -CeO2 supported on carbon paper (Ni x Ce y @CP) with an intimate hydroxide (Ni(OH)2 )-oxide (CeO2 ) interface. Such interface largely promotes the OER activity with a low overpotential of 220 mV at 10 mA cm-2 and a small Tafel slope of 81...
May 17, 2018: ACS Nano
https://www.readbyqxmd.com/read/29762856/vitamin-d-a-steroid-hormone-with-progesterone-like-activity
#20
G Monastra, S De Grazia, L De Luca, S Vittorio, V Unfer
OBJECTIVE: This review is aimed at demonstrating the progesterone-like activity exerted by the active form of vitamin D, or calcitriol (1,25(OH)2D). To achieve this outcome, we compared the effects in vivo and in vitro exerted by progesterone and vitamin D, with a special focus on the female reproductive system and pregnancy. MATERIALS AND METHODS: This is a literature review of the most important articles published in English on vitamin D as a hormone, mainly found by MEDLINE...
April 2018: European Review for Medical and Pharmacological Sciences
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