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25(OH)D

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https://www.readbyqxmd.com/read/29163736/association-of-glycosylated-hemoglobin-levels-with-vitamin-d-status
#1
Badurudeen Mahmood Buhary, Ohoud Almohareb, Naji Aljohani, Saleh Alrajhi, Samer Elkaissi, Suphia Sherbeeni, Abdulrahman Almaghamsi, Shawana Abdulhamid Khan, Mussa H Almalki
Background: The discovery of vitamin D is one of medicine's great achievements. Despite all the positive evidence emerging about the beneficial effect of vitamin D, we still find many are vitamin D deficient. The purposes of this study were to examine the association between serum 25-hydroxyvitamin D (25(OH)D) and glycosylated hemoglobin (HbA1c) levels, to test the hypothesis that lower 25(OH)D levels are associated with poorer glucose control in diabetes mellitus (DM) patients and to investigate the effect of vitamin D supplementation on HbA1c levels...
December 2017: Journal of Clinical Medicine Research
https://www.readbyqxmd.com/read/29162164/vitamin-d-status-is-associated-with-underweight-and-stunting-in-children-aged-6-36-months-residing-in-the-ecuadorian-andes
#2
Rana R Mokhtar, Michael F Holick, Fernando Sempértegui, Jeffrey K Griffiths, Bertha Estrella, Lynn L Moore, Matthew P Fox, Davidson H Hamer
OBJECTIVE: There is limited knowledge on vitamin D status of children residing in the Andes and its association with undernutrition. We evaluated the vitamin D status of children residing in a low socio-economic status (SES) setting in the Ecuadorian Andes and assessed the association between vitamin D status, stunting and underweight. We hypothesized that children who were underweight would have lower serum 25-hydroxyvitamin D (25(OH)D) levels and lower 25(OH)D levels would be associated with a higher risk of stunting...
November 22, 2017: Public Health Nutrition
https://www.readbyqxmd.com/read/29161417/bolus-weekly-vitamin-d3-supplementation-impacts-gut-and-airway-microbiota-in-adults-with-cystic-fibrosis-a-double-blind-randomized-placebo-controlled-clinical-trial
#3
Mansi Kanhere, Jiabei He, Benoit Chassaing, Thomas R Ziegler, Jessica A Alvarez, Elizabeth A Ivie, Li Hao, John Hanfelt, Andrew T Gewirtz, Vin Tangpricha
Background: Disruption of gut microbiota may exacerbate severity of cystic fibrosis (CF). Vitamin D deficiency is a common co-morbidity in patients with CF that may influence composition of the gut microbiota. Objectives: Compare microbiota of vitamin D sufficient and insufficient CF patients, and assess impact of a weekly high-dose vitamin D3 bolus regimen on gut and airway microbiome in adults with CF and vitamin D insufficiency (25(OH)D <30 ng/mL). Design: Forty-one subjects with CF were classified into two groups - vitamin D insufficient (n=23) and vitamin D sufficient (n=18)...
November 16, 2017: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29160418/vitamin-d3-levels-and-nlrp3-expression-in-murine-models-of-obese-asthma-association-with-asthma-outcomes
#4
J-H Zhang, Y-P Chen, X Yang, C-Q Li
Vitamin D (25(OH)D3) is an essential nutrient that plays a role in the immune system. Serum 25(OH)D3 is found to be associated with asthma. However, the role of vitamin D in obese asthma remains unclear. Therefore, we investigated the association between vitamin D levels and asthma outcomes in a murine model of obese asthma. We also evaluated NLRP3 inflammasome activity in the pathogenesis of obese asthma. We divided 20 male Balb/c mice (3-4 weeks old) into 4 groups: normal control, asthma, obese, and obese asthma and developed an obese asthma mouse model...
November 13, 2017: Brazilian Journal of Medical and Biological Research, Revista Brasileira de Pesquisas Médicas e Biológicas
https://www.readbyqxmd.com/read/29157031/early-prenatal-vitamin-d-concentrations-and-social-emotional-development-in-infants
#5
Devika Chawla, Bernard Fuemmeler, Sara Benjamin Neelon, Cathrine Hoyo, Susan Murphy, Julie Daniels
BACKGROUND: Many pregnant women in the USA have suboptimal vitamin D, but the impact on infant development is unclear. Moreover, no pregnancy-specific vitamin D recommendations have been widely accepted. AIMS: Given the ubiquitous expression of vitamin D receptors in the brain, we investigated the association between early prenatal plasma 25-hydroxyvitamin D (25(OH)D) concentrations and children's social and emotional development in the Newborn Epigenetic Study, a prospective study of pregnancies from 2009 to 2011 in Durham, North Carolina, United States of America...
November 20, 2017: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/29155243/the-24-25-to-25-hydroxyvitamin-d-ratio-and-fracture-risk-in-older-adults-the-cardiovascular-health-study
#6
Charles Ginsberg, Ronit Katz, Ian H de Boer, Bryan R Kestenbaum, Michel Chonchol, Michael G Shlipak, Mark J Sarnak, Andrew N Hoofnagle, Dena E Rifkin, Pranav S Garimella, Joachim H Ix
25-hydroxyvitamin D [25(OH)D] may not optimally indicate vitamin D receptor activity. Higher concentrations of its catabolic product 24,25-dihydroxyvitmin D [24,25(OH)2D] and a higher ratio of 24,25(OH)2D to 25(OH)D (the vitamin D metabolite ratio [VMR]) may provide additional information on receptor activity. We compared the strength of associations of these markers with serum PTH concentrations, hip bone mineral density (BMD), and risk of incident hip fracture in community-living older participants in the Cardiovascular Health Study...
November 16, 2017: Bone
https://www.readbyqxmd.com/read/29153926/pharmacokinetics-of-risperidone-in-different-application-forms-comparing-long-acting-injectable-and-oral-formulations
#7
Georgios Schoretsanitis, Jose de Leon, Ekkehard Haen, Benedikt Stegmann, Christoph Hiemke, Gerhard Gründer, Michael Paulzen
We aimed to explore the differences in the pharmacokinetics of risperidone between oral and long-acting injectable (LAI) formulations using a large database of therapeutic drug monitoring (TDM). Plasma concentrations of risperidone (RIS), its active metabolite (9-OH-RIS) and the active moiety (AM) (RIS+9-OH-RIS), their concentration-to-dose (C/D) ratios and ratio of RIS/9-OH-RIS (an index of CYP2D6 metabolic activity) were used to compare patients receiving risperidone orally (n = 851) and those treated with LAI RIS (n = 63)...
November 16, 2017: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/29153607/serum-levels-of-25-hydroxyvitamin-d-predicts-infarct-volume-and-mortality-in-ischemic-stroke-patients
#8
Zhong Nie, Xiao-Chun Ji, Jian Wang, Hong-Xing Zhang
BACKGROUND: The aim of this study is to determine 25-hydroxyvitamin D [25(OH) D] levels in serum, and investigate their associations with cardiovascular disease (CVD) or all-cause mortality in a 1-year follow-up study in patients with first-ever ischemic stroke. METHODS: From November 2013 to October 2015, 387 consecutive patients with ischemic stroke admitted to our hospital were identified. Serum 25(OH) D levels were measured at admission. Infarct volume was measured using diffusion-weighted imaging (DWI)...
December 15, 2017: Journal of Neuroimmunology
https://www.readbyqxmd.com/read/29153269/vitamin-d-pathway-gene-polymorphisms-influenced-vitamin-d-level-among-pregnant-women
#9
Bule Shao, Shuying Jiang, Xiamusiye Muyiduli, Shuojia Wang, Minjia Mo, Minchao Li, Zhaopin Wang, Yunxian Yu
AIMS: To explore the relationship between vitamin D pathway genes, gene-environment interactions and vitamin D level among southeast Chinese pregnant women. METHODS: 759 participants from Zhoushan Pregnant Women Cohort (ZPWC) study, were enrolled from August 2011 to April 2014 in China. Plasma 25(OH)D levels and genetic variants in vitamin D pathway (NADSYN1/DHCR7, GC, CYP3A4, CYP2R1, CYP27A1, CYP27B1, VDR, CYP24A1, and LRP2) were measured using the blood sample collected at the first trimester...
November 7, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29152235/serum-25-hydroxyvitamin-d3-and-24r-25-dihydroxyvitamin-d3-concentrations-in-adult-dogs-are-more-substantially-increased-by-oral-supplementation-of-25-hydroxyvitamin-d3-than-by-vitamin-d3
#10
Lauren R Young, Robert C Backus
We previously found a weak response in serum 25-hydroxyvitamin D3 (25(OH)D3) concentrations when dogs were supplemented with oral vitamin D3 (D3). In the present study, we determined the relative potency of oral 25(OH)D3 compared with D3 for increasing vitamin D status in dogs with low serum 25(OH)D concentrations. Four male and three female, 4-year-old, intact, lean, genetically related, Chinese-crested/beagle dogs were studied in a randomised, single cross-over trial. After feeding a low-vitamin D diet (<4 IU/100 g) for 30 d, four dogs received daily D3 supplementation at 2·3 µg/kg body weight(0·75), while three dogs received a molar equivalency as 25(OH)D3...
2017: Journal of Nutritional Science
https://www.readbyqxmd.com/read/29151248/adiponectin-and-vitamin-d-binding-protein-are-independently-associated-at-birth-in-both-mothers-and-neonates
#11
Spyridon N Karras, Stergios Α Polyzos, Danforth A Newton, Carol L Wagner, Bruce W Hollis, Jody van den Ouweland, Erdinc Dursun, Duygu Gezen-Ak, Kalliopi Kotsa, Cedric Annweiler, Declan P Naughton
CONTEXT: Adult body fat is associated with birth anthropometry, suggesting a role for metabolic regulators including vitamin D and the adipokines-adiponectin and irisin-which have been reported to interact but, as yet, data remain controversial. OBJECTIVE: To study (i) the relationship between vitamin D, its binding protein (VDBP) and the adipokines, adiponectin, and irisin in mothers and neonates at birth and (ii) their effects on neonate anthropometric outcomes...
November 18, 2017: Endocrine
https://www.readbyqxmd.com/read/29149966/seasonal-variation-of-vitamin-d-status-in-long-term-kidney-transplant-recipients
#12
J Wilimborek, M Nowicki, I Kurnatowska
BACKGROUND: There is little information about circannual rhythm of vitamin D level in kidney transplantation (KTx) patients. MATERIAL AND METHODS: In 71 patients (27 females; 44 males) in the long term after KTx (5.5 ± 2.6 years) during the winter and summer months plasma concentration of 25-hydroxyvitamin D (25(OH)D), 1,25-hydroxyvitamin D, parathormone (PTH), fibroblast growth factor 23 (FGF-23), calcium, and phosphorus were assessed. Vitamin D status was classified according to 25(OH)D level (ie, insufficiency, ≤30 ng/mL; deficiency, <15 ng/mL)...
November 2017: Transplantation Proceedings
https://www.readbyqxmd.com/read/29149142/mapping-the-association-between-vitamin-d-and-low-back-pain-a-systematic-review-and-meta-analysis-of-observational-studies
#13
Joshua Zadro, Debra Shirley, Manuela Ferreira, Ana Paula Carvalho-Silva, Sarah E Lamb, Cyrus Cooper, Paulo H Ferreira
BACKGROUND: Low back pain (LBP) is the highest contributor to disability worldwide, with current intervention strategies only providing small to moderate analgesic effects. The use of vitamin D supplementation for LBP has gained interest due to its proposed anti-inflammatory and neuromodulatory properties. However, it is still unclear whether vitamin D levels differ between those with and without LBP or if vitamin D levels are associated with pain intensity. OBJECTIVES: We aim to investigate the association between vitamin D levels and LBP and to determine if vitamin D levels correlate with pain intensity in individuals with LBP...
November 2017: Pain Physician
https://www.readbyqxmd.com/read/29145330/pathologic-femoral-fracture-due-to-tenofovir-induced-fanconi-syndrome-in-patient-with-chronic-hepatitis-b-a-case-report
#14
You-Sung Suh, Dong-Il Chun, Sung-Woo Choi, Hwan-Woong Lee, Jae-Hwi Nho, Soon-Hyo Kwon, Jae-Ho Cho, Sung Hun Won
RATIONALE: We report a case of a hepatitis B virus (HBV)-positive patient with preexisting bone disease who developed tenofovir-induced Fanconi syndrome and subsequently sustained pathologic fracture. To our best knowledge, this is the first report in the English literature about pathologic femoral fracture due to tenofovir-induced Fanconi syndrome in patient with chronic hepatitis B (CHB). The present report describes detailed our experience with the diagnosis of pathologic femoral fracture due to tenofovir-induced Fanconi syndrome and treatment...
November 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/29144817/seasonal-variation-of-vitamin-d-and-serum-thyrotropin-levels-and-its-relationship-in-a-euthyroid-caucasian-population
#15
Gautam Das, Peter N Taylor, Heather Javaid, Brian P Tennant, John Geen, Andrew Aldridge, Onyebuchi Okosieme
OBJECTIVES: It is unclear whether seasonal variations in vitamin D concentrations affect the hypothalamo-pituitary-thyroid (HPT) axis. We investigated the seasonal variability of vitamin D and serum thyrotropin (TSH) levels and their inter-relationship. METHODS: Analysis of 401 patients referred with non-specific symptoms of tiredness who had simultaneous measurements of 25(OH)D3 and thyroid function. Patients were categorised according to the season of blood sampling and their vitamin D status...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144803/endocrine-manifestations-of-primary-hyperoxaluria
#16
Shatha Murad, Yuval Eisenberg
OBJECTIVE: Primary hyperoxaluria type 1 (PH1) is a rare metabolic disorder of oxalate overproduction. It is associated with urolithiasis and nephrocalcinosis which progress to ESRD and systemic oxalosis. As oxalate deposits in tissues, non-parathyroid hormone (nonPTH) mediated hypercalcemia, oxalate osteopathy, primary hypothyroidism and primary hypogonadism develop. In this review, we will present a case of PH1 and provide an overview of this clinical entity and its endocrine manifestations...
November 16, 2017: Endocrine Practice
https://www.readbyqxmd.com/read/29144098/correlation-between-plasmatic-levels-of-vitamin-d-and-pasi-score-our-experience-and-mini-review-of-the-literature
#17
Carlo Mattozzi, Giovanni Paolino, Monica Salvi, Laura Macaluso, Marco Scarno', Gaetano DE Vita, Stefano Calvieri, Antonio G Richetta
BACKGROUND: Psoriasis is a common, inflammatory, chronic, relapsing skin disease. The pathogenesis is multifactorial and it is involved both innate and acquired immunity. Several studies have shown the important role of vitamin D in the pathogenesis of this disorder. In this study we have evaluated a possible correlation between vitamin D and clinical severity of psoriasis calculated with PASI score. METHODS: In this case control study we included 141 Caucasian subjects affected by moderate to severe psoriasis and 62 healthy controls...
November 16, 2017: Giornale Italiano di Dermatologia e Venereologia: Organo Ufficiale, Società Italiana di Dermatologia e Sifilografia
https://www.readbyqxmd.com/read/29143981/high-plasma-25-hydroxyvitamin-d-and-high-risk-of-non-melanoma-skin-cancer-a-mendelian-randomisation-study-of-97849-individuals
#18
U C Winsløw, B G Nordestgaard, S Afzal
BACKGROUND: High plasma 25-hydroxyvitamin D (25 (OH)D) concentration has been associated observationally with high risk of non-melanoma skin cancer, while many studies suggest that vitamin D could have a protective effect on cancer. The true association between vitamin D and risk of skin cancer remains unclear. OBJECTIVES: In this Mendelian randomisation study we tested the hypothesis that genetically high plasma 25(OH)D protects against non-melanoma skin cancer...
November 16, 2017: British Journal of Dermatology
https://www.readbyqxmd.com/read/29143122/vitamin-d-supplementation-attenuates-oxidative-stress-in-paraspinal-skeletal-muscles-in-patients-with-low-back-pain
#19
Katarzyna Dzik, Wojciech Skrobot, Damian Jozef Flis, Mateusz Karnia, Witold Libionka, Wojciech Kloc, Jan Jacek Kaczor
PURPOSE: The aim of the study was to evaluate markers of oxidative stress and vitamin D receptor in paraspinal muscles in low back pain patients with vitamin D deficiency, with normal level of vitamin D, and after 5 weeks of vitamin D supplementation. METHODS: Patients were divided into three groups: supplemented (SUP) with vitamin D, placebo with normal concentration of vitamin D (SUF), and the placebo group with vitamin D deficiency (DEF). The concentration of serum vitamin D was measured before and after the supplementation with vitamin D (3200 IU/ day for 5 weeks)...
November 15, 2017: European Journal of Applied Physiology
https://www.readbyqxmd.com/read/29142975/sclerostin%C3%A2-a-debutant-on-the-autosomal-dominant-polycystic-kidney-disease-scene
#20
Magdalena Jankowska, Mathias Haarhaus, Abdul Rashid Qureshi, Bengt Lindholm, Pieter Evenepoel, Peter Stenvinkel
Introduction: Autosomal dominant polycystic kidney disease (ADPKD) is a genetic disease originating from a mutation in genes encoding polycystin 1 and 2. Recent evidence suggests that these polycystins mediate mechanosensation not only in the primary cilium of kidney cells but also in bone cells. The Wnt/β-catenin signaling pathway plays a central role in mechanotransduction in osteocytes. Mechanical unloading causes the upregulation of the Wnt inhibitor sclerostin. We tested the hypothesis that ADPKD associates with higher circulating sclerostin levels...
May 2017: KI Reports
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