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25-hydroxyvitamin D

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https://www.readbyqxmd.com/read/27923276/association-between-maternal-circulating-25-hydroxyvitamin-d-concentration-and-placental-volume-in-the-first-trimester
#1
Çiğdem Yayla Abide, Meryem Kurek Eken, Işıl Turan, Enis Özkaya, Oya Pekin, Ateş Karateke
OBJECTIVES: We aimed to assess placental volume and placental mean gray value in vitamin D deficiency and healthy placentas in the first trimester of pregnancy using three-dimensional (3D) ultrasonography and Virtual Organ Computer-aided Analysis (VOCAL). METHODS: This prospective cross sectional study comprised 274 patients, divided into two groups according to the presence or absence of vitamin D deficiency (<20ng/ml deficient, n = 153,>20 ng/ml not deficient, n= 121) in the first trimester of pregnancy...
December 6, 2016: Journal of Maternal-fetal & Neonatal Medicine
https://www.readbyqxmd.com/read/27920626/evaluation-of-serum-vitamin-d-levels-in-adolescents-with-pubertal-gynecomastia
#2
Melis Pehlivantürk Kızılkan, Sinem Akgül, Filiz Akbıyık, Orhan Derman, Nuray Kanbur
BACKGROUND: Since vitamin D has an inhibitory function on ductal morphogenesis of the pubertal mammary gland, it may have a role in the development of gynecomastia. The aim of this study was to determine the effect of vitamin D deficiency on the development of pubertal gynecomastia. METHODS: Serum 25-hydroxyvitamin D (25D) levels in 50 adolescents with pubertal gynecomastia and 54 healthy controls between the ages of 11 and 17 years were compared. RESULTS: Mean 25D level was 14...
October 2016: Breast Care
https://www.readbyqxmd.com/read/27919484/vitamin-d-supplementation-reduces-relapse-rate-in-relapsing-remitting-multiple-sclerosis-patients-treated-with-natalizumab
#3
Julie Hejgaard Laursen, Helle Bach Søndergaard, Per Soelberg Sørensen, Finn Sellebjerg, Annette Bang Oturai
BACKGROUND: Vitamin D insufficiency is common among multiple sclerosis patients, and hypovitaminosis D has been associated with multiple sclerosis (MS) risk and disease activity. OBJECTIVE: To investigate how recommendations on vitamin D3 supplements affect 25-hydroxyvitamin D (25(OH)D) levels in patients with relapsing-remitting MS (RRMS) and to examine the clinical effects associated with changes in 25(OH)D levels. METHODS: In this prospective cohort study, baseline blood samples were collected from 170 natalizumab-treated RRMS patients during winter 2009-2010 and were repeated the following winter...
November 2016: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/27918470/vitamin-d-status-and-efficacy-of-vitamin-d-supplementation-in-atopic-dermatitis-a-systematic-review-and-meta-analysis
#4
Min Jung Kim, Soo-Nyung Kim, Yang Won Lee, Yong Beom Choe, Kyu Joong Ahn
Recent literature has highlighted the possible role of vitamin D in atopic dermatitis (AD), and that vitamin D supplementation might help to treat AD. This study determined the relationship between vitamin D level and AD, and assessed the efficacy of vitamin D supplementation. We searched the MEDLINE, EMBASE, and Cochrane databases up to May 2015. Observational studies and randomized controlled trials were included based on the available data on the serum 25-hydroxyvitamin D (25(OH)D) level and quantified data available for severity assessed using the Scoring Atopic Dermatitis (SCORAD) index or Eczema Area and Severity Index (EASI) score...
December 3, 2016: Nutrients
https://www.readbyqxmd.com/read/27916879/vitamin-d-and-weight-cycling-impact-on-injury-illness-and-inflammation-in-collegiate-wrestlers
#5
Jacqueline N Barcal, Joi T Thomas, Bruce W Hollis, Kathy J Austin, Brenda M Alexander, D Enette Larson-Meyer
: This study explored the link between vitamin D status and frequency of skin infections, inflammation, and injury in college wrestlers during an academic year. METHODS: Serum 25-hydroxyvitamin D (25(OH)D) (n = 19), plasma cytokine (TNF-α, IL-6, IL-10) (n = 18) concentrations, and body weight/composition were measured and injury/illness/skin infection data were collected in fall, winter, and spring. RESULTS: In the fall, 74% of wrestlers had vitamin D concentrations <32 ng/mL which increased to 94% in winter and spring...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27916865/associations-of-vitamin-d-with-inter-and-intra-muscular-adipose-tissue-and-insulin-resistance-in-women-with-and-without-polycystic-ovary-syndrome
#6
David Scott, Anju Joham, Helena Teede, Melanie Gibson-Helm, Cheryce Harrison, Samantha Cassar, Samantha Hutchison, Peter R Ebeling, Nigel Stepto, Barbora de Courten
Low vitamin D and insulin resistance are common in polycystic ovary syndrome (PCOS) and associated with higher inter- and intra-muscular adipose tissue (IMAT). We investigated associations between vitamin D, IMAT and insulin resistance in a cross-sectional study of 40 women with PCOS and 30 women without PCOS, and pre- and post-exercise in a 12-week intervention in 16 overweight participants (10 with PCOS and six without PCOS). A non-classical body mass index (BMI) threshold was used to differentiate lean and overweight women (BMI ≥ 27 kg/m²)...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27916100/-correlations-between-serum-25-hydroxyvitamin-d-and-cytokines-in-patients-newly-diagnosed-with-systemic-lupus-erythematosus
#7
Jiang Su, Jing Zhu, Wei Dong, Li Long, Wubin Long, Xixi Chen
Objective To investigate the correlations between serum 25-hydroxyvitamin D (25-OH-VitD) and serum cytokines of interferon (IFN)-α2, interleukin(IL)-6, IL-10, and IL-17A in Chinese Han patients newly diagnosed with systemic lupus erythematosus (SLE). Methods This study recruited 86 Chinese patients newly diagnosed with SLE and 73 healthy volunteers. The serum 25-OH-VitD was detected using ELISA. The serum levels of IFN-α2, IL-6, IL-10 and IL-17A were detected using Luminex liquichip. The associations between serum 25-OH-VitD and serum cytokines, clinical manifestations and laboratory findings were analyzed using Spearman linear correlation analysis...
December 2016: Xi Bao Yu Fen Zi Mian Yi Xue za Zhi, Chinese Journal of Cellular and Molecular Immunology
https://www.readbyqxmd.com/read/27914905/relationship-between-the-finnish-diabetes-risk-score-findrisc-vitamin-d-levels-and-insulin-resistance-in-obese-subjects
#8
Marcos M Lima-Martínez, Carlos Arrau, Saimar Jerez, Mariela Paoli, Juan P González-Rivas, Ramfis Nieto-Martínez, Gianluca Iacobellis
AIM: To assess the relationship between 25-hydroxyvitamin D [25(OH)D] blood concentrations in subjects with obesity and type 2 diabetes mellitus (T2D) risk according to the Finnish Diabetes Risk Score (FINDRISC) modified for Latin America (LA-FINDRISC). METHODS: This study was conducted in Ciudad Bolívar, Venezuela. Eighty two women and 20 men (53 obese and 49 nonobese), with an average age of 42.6±12.30 years were enrolled. Weight, height, body mass index (BMI), waist circumference (WC), fasting glucose, basal insulin, plasma lipids, Homeostasis Model Assessment-Insulin Resistance (HOMA-IR), and 25(OH)D levels were measured...
November 30, 2016: Primary Care Diabetes
https://www.readbyqxmd.com/read/27905644/requests-of-laboratory-tests-for-the-diagnosis-and-management-of-calcium-phosphate-disorders-in-spain
#9
María Salinas, Maite López-Garrigós, Emilio Flores, Joaquín Uris, Carlos Leiva-Salinas
BACKGROUND: Knowledge about the variability in the request of calcium-phosphate metabolism laboratory tests in primary care is important to design strategies to improve health system efficiency. AIM: To compare the inter-practice variability in calcium-phosphate metabolism laboratory tests requested by general practitioners from diverse regions across Spain. MATERIAL AND METHODS: One hundred and forty one clinical laboratories were invited to participate in an observational cross-sectional study...
August 2016: Revista Médica de Chile
https://www.readbyqxmd.com/read/27904983/vdbp-cyp27b1-and-25-hydroxyvitamin-d-gene-polymorphism-analyses-in-a-group-of-sicilian-multiple-sclerosis-patients
#10
L Agnello, C Scazzone, B Lo Sasso, C Bellia, G Bivona, S Realmuto, F Brighina, R Schillaci, P Ragonese, G Salemi, Marcello Ciaccio
Multiple sclerosis (MS) is a chronic demyelinating disease of central nervous system regarded as one of the most common causes of neurological disability in young adults. The exact etiology of MS is not yet known, although epidemiological data indicate that both genetic susceptibility and environmental exposure are involved. A poor vitamin D status has been proposed as the most attractive environmental factor. Several evidence have highlighted the importance of mutations in vitamin D-regulating genes for vitamin D status...
November 30, 2016: Biochemical Genetics
https://www.readbyqxmd.com/read/27904621/the-association-between-vitamin-d-and-health-outcomes-in-women-a-review-on-the-related-evidence
#11
REVIEW
Nahid Ramezani Jolfaie, Mohammad Hossein Rouhani, Shokouh Onvani, Leila Azadbakht
BACKGROUND: Vitamin D has a wide range of physiological functions in skeletal and nonskeletal tissues which may play a role in many diseases. The aim of this study was to evaluate the recent evidence regarding the effects of Vitamin D on several health outcomes in women including breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis. MATERIALS AND METHODS: We searched PubMed and Google Scholar databases through March 2016. We included the most current systematic reviews and meta-analyses assessing the associations of Vitamin D intake and/or serum 25-hydroxyvitamin D (25(OH)D) levels with the risk of incidence of breast cancer, ovarian and endometrial cancers, hypertension, and osteoporosis...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904620/the-relationship-between-vitamin-d-clinical-outcomes-and-mortality-rate-in-icu-patients-a-prospective-observational-study
#12
Nooshin Vosoughi, Parviz Kashefi, Behnood Abbasi, Awat Feizi, Gholamreza Askari, Leila Azadbakht
BACKGROUND: According to the high prevalence of Vitamin D deficiency, a few studies have been conducted to clarify the relationship between 25-hydroxyvitamin D (25(OH)D) and clinical outcomes in critically ill patients. The objective of this study was to determine this probable association. MATERIALS AND METHODS: Serum 25(OH)D, C-reactive protein, malnutrition measurements, and Intensive Care Unit (ICU)-acquired infection from 185 patients in ICU were assessed in the first 24 h of admission and they were followed for the other outcomes...
2016: Journal of Research in Medical Sciences: the Official Journal of Isfahan University of Medical Sciences
https://www.readbyqxmd.com/read/27904508/the-effects-of-vitamin-d-on-severity-of-coronary-artery-atherosclerosis-and-lipid-profile-of-cardiac-patients
#13
Ewelina A Dziedzic, Sebastian Przychodzeń, Marek Dąbrowski
INTRODUCTION: A deficiency of 25-hydroxyvitamin D (25(OH)D) (the standard biomarker for vitamin D status) can have multiple impacts on the cardiovascular system. The aim of the study was to assess of the influence of 25(OH)D on severity of coronary atherosclerosis and lipid profile. MATERIAL AND METHODS: The study involved prospectively 637 patients subject to coronary catheterization. The stage of coronary atherosclerosis was assessed using the Coronary Artery Surgery Study score (CASSS)...
December 1, 2016: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/27903815/neonatal-vitamin-d-status-and-risk-of-multiple-sclerosis-a-population-based-case-control-study
#14
Nete Munk Nielsen, Kassandra L Munger, Nils Koch-Henriksen, David M Hougaard, Melinda Magyari, Kristian T Jørgensen, Marika Lundqvist, Jacob Simonsen, Tine Jess, Arieh Cohen, Egon Stenager, Alberto Ascherio
OBJECTIVE: As previous research has suggested that exposure to vitamin D insufficiency in utero may have relevance for the risk of multiple sclerosis (MS), we aimed to examine the direct association between level of neonatal vitamin D and risk of MS. METHODS: We carried out a matched case-control study. Dried blood spots samples (DBSS) belonging to 521 patients with MS were identified in the Danish Newborn Screening Biobank. For every patient with MS, 1-2 controls with the same sex and birth date were retrieved from the Biobank (n = 972)...
November 30, 2016: Neurology
https://www.readbyqxmd.com/read/27900428/relationship-between-baseline-characteristics-and-response-to-risedronate-treatment-for-osteoporosis-data-from-three-japanese-phase-iii-trials
#15
T Mawatari, R Muraoka, Y Iwamoto
: We evaluated the influence of baseline age, bone mineral density (BMD), and serum levels of vitamin D on the response to risedronate treatment. Risedronate consistently increased BMD, but our results suggest vitamin D supplementation may be necessary to achieve optimal treatment effect. Furthermore, early intervention may help prevent bone fractures. INTRODUCTION: We aimed to investigate the influence of baseline age, BMD, and vitamin D insufficiency on the response to risedronate treatment...
November 30, 2016: Osteoporosis International
https://www.readbyqxmd.com/read/27898926/assessment-of-serum-25-hydroxyvitamin-d-concentrations-of-beef-cows-and-calves-across-seasons-and-geographical-locations
#16
C D Nelson, J L Powell, D M Price, M J Hersom, J V Yelich, M E Drewnoski, S L Bird, G Allen Bridges
Vitamin D is critical for the growth and development of calves and positively contributes to immune function of cattle. Serum 25-hydroxyvitamin D (25(OH)D) concentrations above 20 ng/mL have traditionally been considered adequate for growth and development of cattle, but recent evidence has indicated that concentrations below 30 ng/mL are insufficient for immunity. Because little information is available regarding vitamin D status of beef cattle, the objective of this study was to evaluate vitamin D status of beef cow-calf herds on pasture as affected by season and location...
September 2016: Journal of Animal Science
https://www.readbyqxmd.com/read/27897610/effect-of-calcitriol-supplementation-on-blood-pressure-in-older-adults
#17
Jaime Alberto Bricio-Barrios, Alín Jael Palacios-Fonseca, Mario Del Toro-Equihua, Carmen Alicia Sanchez-Ramirez
Recent studies suggest that vitamin D plays an important role in the control of blood pressure. Unfortunately, because older adults are more likely to have low 25-hydroxyvitamin-D [25(OH)D] levels, this study investigated whether calcitriol supplementation reduces blood pressure in older adults with hypertension. The design was a double-blind placebo-controlled randomized clinical trial with 36 randomly assigned subjects (71.7 ± 10 years). Blood pressure and serum levels of 25(OH)D before and after calcitriol intervention (1,000 IU daily for 6 weeks; n = 22) or placebo (n = 23) for 6 weeks were analyzed...
October 2016: Journal of Nutrition in Gerontology and Geriatrics
https://www.readbyqxmd.com/read/27896775/uplc-ms-ms-determination-of-deuterated-25-hydroxyvitamin-d-d3-25ohd3-and-other-vitamin-d-metabolites-for-the-measurement-of-25ohd-half-life
#18
Shima Assar, Inez Schoenmakers, Albert Koulman, Ann Prentice, Kerry S Jones
Plasma 25-hydroxyvitamin D (25OHD) half-life (25OHDt 1/2) is a dynamic marker of vitamin D metabolism that can be used to assess vitamin D expenditure and help inform vitamin D requirements. Our group recently established an approach to determine the 25OHDt 1/2 as an alternative biomarker of 25OHD expenditure in humans. The approach uses a small oral dose of stable isotope labeled 25OHD3 [3-(2)H-25OHD(3) (6,19,19-d3)] (d3-25OHD3) (tracer), which is distinguishable from endogenous 25OHD by liquid chromatography tandem-mass spectrometry (LC-MS/MS)...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/27895322/gestational-vitamin-d-deficiency-and-autism-related-traits-the-generation-r-study
#19
A A E Vinkhuyzen, D W Eyles, T H J Burne, L M E Blanken, C J Kruithof, F Verhulst, V W Jaddoe, H Tiemeier, J J McGrath
There is intense interest in identifying modifiable risk factors associated with autism-spectrum disorders (ASD). Autism-related traits, which can be assessed in a continuous fashion, share risk factors with ASD, and thus can serve as informative phenotypes in population-based cohort studies. Based on the growing body of research linking gestational vitamin D deficiency with altered brain development, this common exposure is a candidate modifiable risk factor for ASD and autism-related traits. The association between gestational vitamin D deficiency and a continuous measure of autism-related traits at ~6 years (Social Responsiveness Scale; SRS) was determined in a large population-based cohort of mothers and their children (n=4229)...
November 29, 2016: Molecular Psychiatry
https://www.readbyqxmd.com/read/27894744/-vitamin-d-deficiency-and-morbimortality-in-critically-ill-paediatric-patients
#20
Patricia García-Soler, Antonio Morales-Martínez, Vanessa Rosa-Camacho, Juan Antonio Lillo-Muñoz, Guillermo Milano-Manso
OBJECTIVES: To determine the prevalence and risks factors of vitamin D deficiency, as well as its relationship with morbidity and mortality in a PICU. MATERIAL AND METHODS: An observational prospective study in a tertiary children's University Hospital PICU conducted in two phases: i: cohorts study, and ii: prevalence study. The study included 340 critically ill children with ages comprising 6 months to 16 years old. EXCLUSION CRITERIA: Chronic kidney disease, known parathyroid disorders, and vitamin D supplementation...
November 25, 2016: Anales de Pediatría: Publicación Oficial de la Asociación Española de Pediatría (A.E.P.)
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