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https://www.readbyqxmd.com/read/29333826/vitamin-d-deficiency-in-pediatric-clinical-practice
#1
Gustavo Cediel, Johanna Pacheco-Acosta, Carlos CastiUo-Durdn
INTRODUCTION: Vitamin D research suggests it has a role in disorders other than bone metabolism. OBJECTIVE: To update the information on vitamin D deficiency (VDD) in pediatric clinical disorders. METHODS: Search in virtual libraries, giving priority to clinical and longitudinal studies and meta-analyses on VDD in the pediatric age group published in the past 20 years. The terms "vitamin D deficiency", "children and adolescents" (both in Spanish and English) were used as search descriptors...
February 1, 2018: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/29331722/effect-of-vitamin-d-supplementation-on-serum-sclerostin-levels-in-chronic-kidney-disease
#2
REVIEW
Ashok Kumar Yadav, Vivek Kumar, Debasish Banerjee, Krishan Lal Gupta, Vivekanand Jha
Vitamin D deficiency, cardiovascular disease and abnormal bone mineral metabolism are common in chronic kidney disease (CKD). Abnormal bone mineral metabolism has been linked to vascular calcification in CKD. Sclerostin has emerged as an important messenger in cross talk between bone-vascular axis. We analyzed sclerostin in subjects who participated in the randomized, double blind, placebo controlled trial investigating the effect of cholecalciferol supplementation on vascular function in non-diabetic CKD stage G3-4 and vitamin D ≤20ng/ml [CTRI/2013/05/003648]...
January 10, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29325695/investigation-of-the-uterine-structural-changes-in-the-experimental-model-with-polycystic-ovary-syndrome-and-effects-of-vitamin-d-treatment-an-ultrastructural-and-immunohistochemical-study
#3
Yurdun Kuyucu, Latife Seyran Çelik, Özge Kendirlinan, Özgül Tap, Ufuk Özgü Mete
In this study, we aimed to investigate the structural changes seen in the endometrium in experimental PCOS rat model and the effects of vitamin D treatment on these changes at immunohistochemical and electron microscopic levels. 24 prepubertal female rats were divided into three groups. Two groups were injected with dehydroepiandrosterone and one of them was treated with 1,25(OH)2 D3 at the same time. The control group was injected with sesame oil. At the end of the 28th day, the blood samples were collected...
January 8, 2018: Reproductive Biology
https://www.readbyqxmd.com/read/29325163/trans-ethnic-evaluation-identifies-novel-low-frequency-loci-associated-with-25-hydroxyvitamin-d-concentrations
#4
Jaeyoung Hong, Kathryn E Hatchell, Jonathan P Bradfield, Bjonnes Andrew, Chesi Alessandra, Lai Chao-Qiang, Carl D Langefeld, Lingyi Lu, Yingchang Lu, Pamela L Lutsey, Solomon K Musani, Mike A Nalls, Cassianne Robinson-Cohen, Jeffery D Roizen, Richa Saxena, Katherine L Tucker, Julie T Ziegler, Dan E Arking, Joshua C Bis, Eric Boerwinkle, Erwin P Bottinger, Donald W Bowden, Vincente Gilsanz, Denise K Houston, Heidi J Kalkwarf, Andrea Kelly, Joan M Lappe, Yongmei Liu, Erin D Michos, Sharon E Oberfield, Nicholette D Palmer, Jerome I Rotter, Bishwa Sapkota, John A Shepherd, James G Wilson, Saonli Basu, Ian H de Boer, Jasmin Divers, Barry I Freedman, Struan F A Grant, Hakon Hakanarson, Tamara B Harris, Bryan R Kestenbaum, Stephen B Kritchevsky, Ruth J F Loos, Jill M Norris, Arnita F Norwood, Jose M Ordovas, James S Pankow, Bruce M Psaty, Dharambir K Sanhgera, Lynne E Wagenknecht, Babette S Zemel, James Meigs, Josée Dupuis, Jose C Florez, Thomas Wang, Ching-Ti Liu, Corinne D Engelman, Liana K Billings
Context: Vitamin D inadequacy is common in the adult population of the United States. While the genetic determinants underlying vitamin D inadequacy have been studied in people of European ancestry, less is known in Hispanic or African ancestry populations. Objective: The TRANSCEN-D (TRANS-ethniC Evaluation of vitamiN D GWAS) consortium was assembled to replicate genetic associations with 25-hydroxyvitamin D (25(OH)D) concentrations from the meta-analyses of European ancestry (SUNLIGHT) and to identify novel genetic variants related to vitamin D concentrations in African and Hispanic ancestries...
January 9, 2018: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29325125/age-phosphorus-and-25-hydroxycholecalciferol-regulate-mrna-expression-of-vitamin-d-receptor-and-sodium-phosphate-cotransporter-in-the-small-intestine-of-broiler-chickens
#5
J C Han, J L Zhang, N Zhang, X Yang, H X Qu, Y Guo, C X Shi, Y F Yan
Four experiments were conducted in this study. Experiment 1 was carried out to examine mRNA expressions of nuclear vitamin D receptor (nVDR), membrane vitamin D receptor (mVDR), and type IIb sodium-phosphate cotransporter (NaPi-IIb) in the small intestine of broiler chickens. Experiments 2, 3, and 4 were implemented to evaluate effects of age, non-phytate phosphorus (NPP), and 25-hydroxycholecalciferol (25-OH-D3) on mRNA expressions of nVDR, mVDR, and NaPi-IIb in the duodenum of chickens. Results showed that mRNA expression levels of nVDR and NaPi-IIb were highest in the duodenum of 21-day-old broilers, lower in the jejunum, and lowest in the ileum...
January 6, 2018: Poultry Science
https://www.readbyqxmd.com/read/29322711/high-prevalence-of-hypovitaminosis-d-in-patients-presenting-with-proximal-muscle-weakness-a-sub-himalayan-study
#6
Jatinder Mokta, Balraj, Kiran Mokta, Asha Ranjan, Ivan Joshi, Mahak Garg
Background: Hypovitaminosis D has emerged as a major public health problem and 25-50% of patients encountered in clinical practice are deficient in vitamin D. This study was conducted to estimate the prevalence of hypovitaminosis D among patients presenting with proximal muscle weakness. Study Design: It was a cross-sectional study done on patients ≥18 years presenting in outdoor clinic from May 2008 to April 2013, with difficulty in standing and going up stairs/ diffuse musculoskeletal pains...
November 2017: Journal of the Association of Physicians of India
https://www.readbyqxmd.com/read/29321080/prenatal-vitamin-d-status-and-offspring-s-growth-adiposity-and-metabolic-health-a-systematic-review-and-meta-analysis
#7
Christina Santamaria, Wei Guang Bi, Line Leduc, Negar Tabatabaei, Prévost Jantchou, Zhong-Cheng Luo, François Audibert, Anne Monique Nuyt, Shu Qin Wei
In this systematic review and meta-analysis of observational studies, we aimed to estimate the associations between prenatal vitamin D status and offspring growth, adiposity and metabolic health. We searched the literature in human studies on prenatal vitamin D status and offspring growth in PubMed, up to July 2017. Studies were selected according to their methodological quality and outcomes of interest (anthropometry, fat mass and diabetes in offspring). The inverse variance method was used to calculate the pooled mean difference (MD) with 95 % CI for continuous outcomes, and the Mantel-Haenszel method was used to calculate the pooled OR with 95 % CI for dichotomous outcomes...
January 11, 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29320465/crp-genotypes-predict-increased-risk-to-co-present-with-low-vitamin-d-and-elevated-crp-in-a-group-of-healthy-black-south-african-women
#8
Pieter H Myburgh, G Wayne Towers, Iolanthé M Kruger, Cornelie Nienaber-Rousseau
Low 25-hydroxyvitamin D (25(OH)D) and elevated C-reactive protein (CRP) concentrations are independently associated with adverse health outcomes, including cardiovascular disease (CVD). Although an inverse association between these factors has been described, the underlying mechanisms remain unknown. We postulate that environment-gene interactions, through which 25(OH)D interacts with single nucleotide polymorphisms (SNPs) within the CRP gene, modulate CRP; that certain CRP genotypes predispose individuals to a co-phenotype of low 25(OH)D and elevated CRP concentrations; and that this co-phenotype is associated with higher CVD risk...
January 10, 2018: International Journal of Environmental Research and Public Health
https://www.readbyqxmd.com/read/29319776/hypercalcemia-and-acute-renal-insufficiency-following-use-of-a-veterinary-supplement
#9
Marcelo Fernando Ronsoni, Heloisa de Cassia Dos Santos, Bruno da Silveira Colombo, Carina Gabriela Correa, Ana Paula Gomes Moritz, Marisa Helena Cesar Coral, Simone Van de Sande-Lee, Alexandre Hohl
A previously healthy 24 yo male presented with a two-month history of epigastric pain, nausea, vomiting, fatigue and malaise. He reported abuse of different substances, including an injectable veterinary vitamin compound, which contains high doses of vitamin A, D and E, and an oily vehicle that induces local edema and enhances muscle volume. Serum creatinine was 3.1 mg/dL, alanine transaminase 160 mg/dL, aspartate transaminase 11 mg/dL, total testosterone 23 ng/dL, 25-OH-vitamin D >150 ng/mL (toxicity >100), 1,25-OH-vitamin D 80 pg/mL, vitamin A 0...
October 2017: Jornal Brasileiro de Nefrologia: ʹorgão Oficial de Sociedades Brasileira e Latino-Americana de Nefrologia
https://www.readbyqxmd.com/read/29318983/prevalence-and-determinants-of-vitamin-d-deficiency-in-the-third-trimester-of-pregnancy-a-multicentre-study-in-switzerland
#10
Jean-Philippe Krieger, Sophie Cabaset, Claudia Canonica, Ladina Christoffel, Aline Richard, Therese Schröder, Begoña Lipp von Wattenwyl, Sabine Rohrmann, Katharina Quack Lötscher
Vitamin D deficiency during pregnancy is associated with negative health consequences for mothers and their infants. Data on the vitamin D status of pregnant women in Switzerland are scarce. A three-centre study was conducted in the obstetric departments of Zurich, Bellinzona and Samedan (Switzerland) to investigate the prevalence and determinants of vitamin D deficiency (serum 25-hydroxyvitamin D (25(OH)D)<50 nmol/l) in 3rd-trimester pregnant women living in Switzerland (n 305), and the correlation between 25(OH)D in pregnant women and their offspring at birth (n 278)...
January 10, 2018: British Journal of Nutrition
https://www.readbyqxmd.com/read/29318009/assessment-of-osteoporosis-using-the-frax-method-and-the-importance-of-vitamin-d-levels-in-copd-patients
#11
Ceyda Anar, Melike Yüksel Yavuz, Filiz Güldaval, Yelda Varol, Dilek Kalenci
Background: The aim of this paper was to evaluate the availability of FRAX for assessing osteoporosis risk, and to demonstrate the importance of vitamin D levels in COPD patients. Methods: Fourty-six males who fulfilled the COPD diagnostic criteria defined by GOLD were included. Age, race, BMI, physical activity frequency, smoking and dietary habits, age at COPD diagnosis, disease duration, fractures history, and medications use were determined. Levels of 25(OH)D were detected...
2018: Multidisciplinary Respiratory Medicine
https://www.readbyqxmd.com/read/29317287/in-vivo-response-of-the-human-epigenome-to-vitamin-d-a-proof-of-principle-study
#12
Carsten Carlberg, Sabine Seuter, Tarja Nurmi, Tomi-Pekka Tuomainen, Jyrki K Virtanen, Antonio Neme
In vitro cell culture studies showed that the hormonal form of vitamin D3, 1α,25-dihydroxyvitamin D3, significantly (p < 0.05) affects the human epigenome at thousands of genomic loci. Phase II of the VitDbol vitamin D intervention trial (NCT02063334) involved a proof-of-principle study of one individual, who was exposed three times every 28 days to an oral bolus (2,000 µg) of vitamin D3. Blood samples were taken directly before each supplementation as well as one and two days after, chromatin was isolated from peripheral blood mononuclear cells without any further in vitro culture and at all nine time points epigenome-wide chromatin accessibility was assessed by applying FAIRE-seq (formaldehyde-assisted isolation of regulatory elements sequencing)...
January 6, 2018: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29316495/vdr-and-gc-gene-polymorphisms-modulate-the-risk-of-lumbar-disc-degeneration-in-iran
#13
Sohail Mashayekhi, Alia Saberi, Zivar Salehi, Gelareh Biazar, Roghayeh Mehrdel
OBJECTIVE: Lumbar disc degeneration (LDD) occurs commonly in humans. Vitamin D metabolic and signaling pathway plays a significant role in intervertebral disc degeneration. The aim of this study was to evaluate the influence of the genetic polymorphism in the two key genes of 1,25-(OH)2-D3 pathway, VDR (vitamin D receptor) and GC (group-specific component), in LDD development. PATIENTS AND METHODS: Two single-nucleotide polymorphisms, VDR rs2228570 (FokI) and GC rs7041, were genotyped in 180 patients with LDD and 230 healthy individuals...
December 29, 2017: Clinical Neurology and Neurosurgery
https://www.readbyqxmd.com/read/29314357/vitamin-d-levels-in-asthmatic-patients-with-and-without-allergic-bronchopulmonary-aspergillosis
#14
Ritesh Agarwal, Inderpaul S Sehgal, Sahajal Dhooria, Ashutosh N Aggarwal, Naresh Sachdeva, Sanjay K Bhadada, Mandeep Garg, Digambar Behera, Arunaloke Chakrabarti
Vitamin D deficiency is believed to a pathogenetic factor in patients with allergic bronchopulmonary aspergillosis (ABPA) and cystic fibrosis. Whether vitamin D deficiency is also prevalent in ABPA complicating asthma, remains unknown. Herein, we evaluate vitamin D levels in asthmatic patients with and without ABPA. In a prospective study, plasma vitamin D (25[OH]D) levels were measured in consecutive subjects with asthma (n=75), ABPA (n=158) and healthy volunteers (n=50). Vitamin D levels <20 ng/mL were considered as vitamin D deficiency...
January 4, 2018: Mycoses
https://www.readbyqxmd.com/read/29313442/osteoprotegerin-concentration-is-associated-with-the-presence-and-severity-of-peripheral-arterial-disease-in-type-2-diabetes-mellitus
#15
Katarína Demková, Miriam Kozárová, Zuzana Malachovská, Martin Javorský, Ivan Tkáč
BACKGROUND: Osteoprotegerin plays a role in the development of several bone diseases. In addition, osteoprotegerin may contribute to the development of vascular disease. Little is known about the association between serum osteoprotegerin levels and the presence or severity of peripheral arterial disease (PAD). The aim of this study was to examine the association between serum osteoprotegerin levels and both the presence as well as the severity of lower extremity arterial disease in patients with type 2 diabetes (T2DM)...
January 9, 2018: VASA. Zeitschrift Für Gefässkrankheiten
https://www.readbyqxmd.com/read/29306481/effect-of-calcifediol-treatment-on-cardiovascular-outcomes-in-patients-with-acute-coronary-syndrome-and-percutaneous-revascularization
#16
Cristina Navarro-Valverde, Jose M Quesada-Gómez, Ramón Pérez-Cano, Ana Fernández-Palacín, Luis F Pastor-Torres
BACKGROUND AND OBJECTIVES: Vitamin D deficiency has been consistently linked with cardiovascular diseases. However, results of intervention studies are contradictory. The aim of this study was to evaluate the effect of treatment with calcifediol (25(OH)D3) on the cardiovascular system of patients with non-ST-elevation acute coronary syndrome after percutaneous coronary intervention. PATIENTS AND METHODS: A prospective study assessing≥60-year-old patients with non-ST-elevation acute coronary syndrome, coronary artery disease and percutaneous revascularisation...
January 3, 2018: Medicina Clínica
https://www.readbyqxmd.com/read/29305131/prevalence-and-predictors-of-low-serum-25-hydroxyvitamin-d-among-female-african-american-breast-cancer-survivors
#17
Patricia Sheean, Claudia Arroyo, Jennifer Woo, Linda Schiffer, Melinda Stolley
BACKGROUND: African-American breast cancer survivors commonly demonstrate low serum 25-hydroxyvitamin D (25(OH)D). Decreased cutaneous conversion, high levels of adiposity, and even breast cancer treatment may influence vitamin D status. Previous investigations have analyzed African-American women in aggregate with other breast cancer survivors and have not comprehensively addressed these influential factors. OBJECTIVES: To determine the prevalence of low serum 25(OH)D in an exclusively African-American cohort of female breast cancer survivors with overweight/obesity and to evaluate the role of ultraviolet (UV) light exposure, body composition, and dietary sources of vitamin D on serum 25(OH)D levels...
January 2, 2018: Journal of the Academy of Nutrition and Dietetics
https://www.readbyqxmd.com/read/29303025/vitamin-d-status-in-pregnant-women-with-asthma-and-its-association-with-adverse-respiratory-outcomes-during-infancy
#18
Megan E Jensen, V E Murphy, P G Gibson, J Mattes, C A Camargo
BACKGROUND: Vitamin D may influence pregnancy and infant outcomes, especially infant respiratory health. This study aimed to examine vitamin D status in pregnant women with asthma, and whether higher vitamin D levels are associated with fewer adverse respiratory outcomes in their infants. METHODS: Pregnant women with asthma, recruited from John Hunter Hospital Newcastle Australia (latitude 33°S), had serum total 25-hydroxyvitamin-D (25(OH)D) measured at 16 and 35 weeks gestation...
January 5, 2018: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29301349/associations-of-serum-25-oh-d-concentrations-with-lung-function-airway-inflammation-and-common-cold-in-the-general-population
#19
Rachida Rafiq, Willemien Thijs, Robert Prein, Renate T de Jongh, Christian Taube, Pieter S Hiemstra, Renée de Mutsert, Martin den Heijer
Vitamin D is hypothesized to have a beneficial effect on lung function and respiratory infections. The aim of this study was to assess the relationship of serum 25-hydroxyvitamin D (25(OH)D) concentrations with lung function, airway inflammation and common colds. We performed a cross-sectional analysis in the Netherlands Epidemiology of Obesity (NEO) study, a population-based cohort study. We included participants with measurements of serum 25(OH)D, Forced Expiratory Volume in 1 s (FEV₁), Forced Vital Capacity (FVC), Fractional Exhaled Nitric Oxide (FeNO), and data on self-reported common colds (n = 6138)...
January 3, 2018: Nutrients
https://www.readbyqxmd.com/read/29301185/a-lack-of-association-between-vitamin-d-binding-protein-and-25-hydroxyvitamin-d-concentrations-in-pediatric-type-1-diabetes-without-microalbuminuria
#20
Hwa Young Kim, Young Ah Lee, Hae Woon Jung, Min Jeoung Gu, Ji Young Kim, Gyung Min Lee, Jieun Lee, Ju Young Yoon, Sei Won Yang, Choong Ho Shin
PURPOSE: Vitamin D deficiency is reported to be more common in type 1 diabetes patients and might be associated with the increased urinary loss of vitamin D binding protein (VDBP) consequent to impaired 25-hydroxyvitamin D (25(OH)D) circulation. We aimed to evaluate the possible increased urinary loss of VDBP, a correlation between VDBP and circulating 25(OH)D level, and risk factors influencing low vitamin D level in pediatric type 1 diabetes patients without microalbuminuria. METHODS: This is a cross-sectional study of subjects who visited Seoul National University Children's Hospital between January and March 2013...
December 2017: Annals of Pediatric Endocrinology & Metabolism
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