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25-hydroxyvitamin D

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https://www.readbyqxmd.com/read/28539415/vitamin-d-supplementation-trials-aimed-at-reducing-mortality-have-much-higher-power-when-focusing-on-people-with-low-serum-25-hydroxyvitamin-d-concentrations
#1
Hermann Brenner, Lina Jansen, Kai-Uwe Saum, Bernd Holleczek, Ben Schöttker
Background: Evidence of an inverse association between serum vitamin D and mortality from epidemiological studies has prompted efforts to reduce mortality by vitamin D supplementation, either in targeted interventions for people with vitamin D insufficiency or deficiency, or in untargeted interventions regardless of baseline vitamin D status.Objective: We aimed to assess the expected impact of the 2 different approaches on effect sizes and power of intervention studies.Methods: Serum concentrations of 25-hydroxyvitamin D [25(OH)D] were measured in 9579 participants aged 50-75 y in the German Epidemiologische Studie zu Chancen der Verhütung, Früherkennung und optimierten Therapie chronischer Erkrankungen in der älteren Bevölkerung (ESTHER) study who were followed for mortality for a median of 12...
May 24, 2017: Journal of Nutrition
https://www.readbyqxmd.com/read/28539181/low-vitamin-d-levels-increase-the-risk-of-type-2-diabetes-in-older-adults-a-systematic-review-and-meta-analysis
#2
REVIEW
Paola Lucato, Marco Solmi, Stefania Maggi, Anna Bertocco, Giulia Bano, Caterina Trevisan, Enzo Manzato, Giuseppe Sergi, Patricia Schofield, Youssef Kouidrat, Nicola Veronese, Brendon Stubbs
Low serum levels of 25 hydroxyvitamin D (25OHD) (hypovitaminosis D) is common in older adults and associated with several negative outcomes. The association between hypovitaminosis D and diabetes in older adults is equivocal, however. We conducted a meta-analysis investigating if hypovitaminosis D is associated with diabetes in prospective studies among older participants. Two investigators systematically searched major electronic databases, from inception until 10/07/2016. The cumulative incidence of diabetes among groups was estimated according to baseline serum 25OHD levels...
June 2017: Maturitas
https://www.readbyqxmd.com/read/28538395/palisaded-neutrophilic-and-granulomatous-dermatitis-as-a-novel-cause-of-hypercalcemia-a-case-report
#3
Michihito Kono, Tomoka Hasegawa, So Nagai, Toshio Odani, Kazumasa Akikawa, Yukiko Nomura, Hidetsugu Sato, Keisuke Kikuchi, Norio Amizuka, Hideaki Kikuchi
RATIONALE: Palisaded neutrophilic and granulomatous dermatitis (PNGD) is a benign, inflammatory dermatosis with distinct histopathological features often observed in patients with systemic diseases. There were no reports of PNGD without underlying systemic diseases as an underlying cause of hypercalcemia. Herein, we report a case of a 62-year-old man with hypercalcemia due to PNGD, but with no underlying systemic diseases, including tuberculosis, sarcoidosis, or vasculitis. PATIENT CONCERNS: Laboratory tests showed an elevated C-reactive protein level, an elevated corrected calcium level, a normal 25-hydroxyvitamin D level, and an elevated 1,25-dihydroxyvitamin D level...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28538382/improvement-of-fatigue-after-vitamin-d-supplementation-in-kidney-transplant-recipients
#4
Bin Han, Xiao Wu, Yong Guo
Low serum levels of vitamin D have been associated with fatigue in both healthy and clinical populations. Our aim was to evaluate the effect of vitamin D supplementation on fatigue in kidney transplant recipients (KTRs). In total, 137 patients after kidney transplant and 119 age- and sex-matched healthy volunteers were recruited. Serum levels of 25-hydroxyvitamin D (25(OH)D) were measured by competitive protein-binding assay. Fatigue was assessed using the subscale fatigue of the Checklist Individual Strength (CIS)...
May 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28536054/effect-of-vitamin-d-replacement-on-immunological-biomarkers-in-patients-with-multiple-sclerosis
#5
May F Mrad, Nabil K El Ayoubi, Maria O Esmerian, Jalal M Kazan, Samia J Khoury
We aimed to investigate the immunologic effects of vitamin D replacement in RRMS patients. In a controlled single center study, patients deficient in 25-hydroxyvitamin D (serum level<25ng/ml) received 10,000IU/week cholecalciferol for 3months. Sufficient vitamin D patients (serum level>35ng/ml) were followed for the same period. Assessments were performed at baseline and at 3months. 25-hydroxyvitamin D levels increased significantly from baseline to month-3 in the deficient group after treatment and remained stable in the sufficient group...
May 20, 2017: Clinical Immunology: the Official Journal of the Clinical Immunology Society
https://www.readbyqxmd.com/read/28533007/free-25-oh-d-concentrations-are-associated-with-atopy-and-lung-function-in-children-with-asthma
#6
Suzanne L Pollard, John J Lima, Edward Mougey, Karina Romero, Carla Tarazona-Meza, Katherine Tomaino, Gary Malpartida Guzmán, Nadia N Hansel, William Checkley
BACKGROUND: Evidence suggests free mono-hydroxyvitamin D (25[OH]D) concentrations are more strongly linked to certain outcomes than total concentrations; however, no studies have examined the relation between free 25(OH)D and respiratory or allergic disease. OBJECTIVE: To examine associations between total and free 25(OH)D concentrations and asthma outcomes. METHODS: We quantified total and free 25(OH)D concentrations in 137 Peruvian children with asthma and 152 children without asthma and examined associations with asthma outcomes...
May 19, 2017: Annals of Allergy, Asthma & Immunology
https://www.readbyqxmd.com/read/28532473/erratum-to-standardized-serum-25-hydroxyvitamin-d-concentrations-are-inversely-associated-with-cardiometabolic-disease-in-u-s-adults-a-cross-sectional-analysis-of-nhanes-2001-2010
#7
Banaz Al-Khalidi, Samantha M Kimball, Michael A Rotondi, Chris I Ardern
No abstract text is available yet for this article.
May 22, 2017: Nutrition Journal
https://www.readbyqxmd.com/read/28531780/vitamin-d-status-and-the-effects-of-oral-vitamin-d-treatment-in-children-with-vitiligo-a-prospective-study
#8
Gülay Karagüzel, Nil P Sakarya, Sevgi Bahadır, Selçuk Yaman, Ayşenur Ökten
BACKGROUND & AIMS: Vitiligo is a pigmentary disorder and autoimmune pathogenesis seems most likely. Decreased vitamin D levels have been related to several autoimmune diseases. Little is known about the association of vitiligo and vitamin D. We aimed to evaluate serum 25-hydroxyvitamin D [25(OH)D] levels in children with vitiligo and to determine the efficacy of oral vitamin D therapy on the repigmentation of vitamin D deficient patients. METHODS: Thirty patients aged 6-17 years with vitiligo and 30 sex- and age-matched apparently healthy controls were included in this prospective study...
October 2016: Clinical Nutrition ESPEN
https://www.readbyqxmd.com/read/28526926/higher-prevalence-of-vitamin-d-deficiency-in-german-pregnant-women-compared-to-non-pregnant-women
#9
Sandra Gellert, Alexander Ströhle, Norman Bitterlich, Andreas Hahn
PURPOSE: Adequate vitamin D status is crucial for normal development of the fetus and for maternal health. As data on vitamin D status (25-hydroxyvitamin D, 25(OH)D) in German women of different states of pregnancy were not available, this study compared the vitamin D status of German women in all trimesters of pregnancy with that of non-pregnant women. METHODS: The study sample of 858 women (18-45 years) was recruited from April 2013 to March 2015 as a part of the cross-sectional Germany-wide VitaMinFemin study...
May 19, 2017: Archives of Gynecology and Obstetrics
https://www.readbyqxmd.com/read/28526533/serum-25-hydroxyvitamin-d-deficiency-predicts-long-term-poor-prognosis-among-ischemic-stroke-patients-without-hyperglycaemia
#10
Tian Xu, Chongke Zhong, Tan Xu, Yanbo Peng, Xiaoqing Bu, Chung-Shiuan Chen, Jinchao Wang, Zhong Ju, Qunwei Li, Deqin Geng, Yingxian Sun, Dongsheng Zhang, Jing Chen, Yonghong Zhang, Jiang He
BACKGROUND: It is unclear whether 25-hydroxyvitamin D [25(OH)D] has a protective effect on long-term prognosis of ischemic stroke and whether it is affected by blood glucose levels. We aim to examine the effect of serum vitamin D especially its deficiency on 1-year poor outcome of ischemic stroke patients in total patients and by blood glucose subgroups. METHODS: A total of 3041 ischemic patients from China Antihypertensive Trial in Acute Ischemic Stroke were included...
May 16, 2017: Clinica Chimica Acta; International Journal of Clinical Chemistry
https://www.readbyqxmd.com/read/28526388/serum-vitamin-d-and-change-in-lipid-levels-over-5%C3%A2-y-the-atherosclerosis-risk-in-communities-study
#11
Kamil F Faridi, Di Zhao, Seth S Martin, Joshua R Lupton, Steven R Jones, Eliseo Guallar, Christie M Ballantyne, Pamela L Lutsey, Erin D Michos
OBJECTIVES: Deficiency of 25-hydroxyvitamin D (25[OH]D) is associated with increased risk for cardiovascular disease, perhaps mediated through dyslipidemia. Deficient 25(OH)D is cross-sectionally associated with dyslipidemia, but little is known about longitudinal lipid changes. The aim of this study was to determine the relationship of 25(OH)D deficiency to longitudinal lipid changes and risk for incident dyslipidemia. METHODS: This was a longitudinal community-based study of 13 039 participants from the ARIC (Atherosclerosis Risk in Communities) study who had 25(OH)D and lipids measured at baseline (1990-1992) and lipids remeasured in 1993 to 1994 and 1996 to 1998...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28526374/impact-of-high-dose-vitamin-d3-on-plasma-free-25-hydroxyvitamin-d-concentrations-and-antimicrobial-peptides-in-critically-ill-mechanically-ventilated-adults
#12
Jenny E Han, Jessica A Alvarez, Jennifer L Jones, Vin Tangpricha, Mona A Brown, Li Hao, Lou Ann S Brown, Greg S Martin, Thomas R Ziegler
OBJECTIVES: High-dose vitamin D3 increases plasma total 25-hydroxyvitamin D [25(OH)D] in critically ill, ventilated patients; however, to our knowledge, the effect on plasma levels of free (nonprotein-bound) 25(OH)D has not been investigated in critical illness. Moreover, the relationship of free 25(OH)D and the regulation of endogenous antimicrobial peptides (AMPs) remains unknown. The aims of this study were to determine in critically ill adults with respiratory failure the effect of previous high-dose regimens of vitamin D3 on free 25(OH)D concentrations, the relationship of free 25(OH)D with circulating cathelicidin (LL-37) and human beta-defensin-2 (hBD-2), and the associations between plasma levels of free 25(OH)D and these AMPs to alveolar macrophage phagocytosis function...
June 2017: Nutrition
https://www.readbyqxmd.com/read/28519964/association-between-serum-25-hydroxyvitamin-d-and-glycated-hemoglobin-levels-in-type-2-diabetes-patients-with-chronic-kidney-disease
#13
Lee Ling Lim, Yong Muh Ng, Pei San Kang, Soo Kun Lim
AIMS/INTRODUCTION: Vitamin D is suggested to influence glucose homeostasis. An inverse relationship between serum 25-hydroxyvitamin D [25(OH)D] and glycemic control in non-chronic kidney disease (CKD) patients with type 2 diabetes (T2D) was reported. We aimed to examine this association among T2D patients with CKD. MATERIALS AND METHODS: 100 T2D participants with stage 3-4 CKD were recruited. Blood for HbA1c , serum 25(OH)D, renal, and lipid profiles were drawn at enrolment...
May 18, 2017: Journal of Diabetes Investigation
https://www.readbyqxmd.com/read/28517037/serum-phosphate-is-related-to-adiposity-in-healthy-adults
#14
Emma O Billington, Greg D Gamble, Sarah Bristow, Ian R Reid
BACKGROUND: Inorganic phosphate is a crucial component of cellular energy metabolism. We have identified an inverse relationship between serum phosphate concentration and fat mass in a cohort of healthy men. This study reports those data and determines whether this association is present in two female populations. METHODS: Cross-sectional data from three independent cohorts, consisting of healthy adult males (Male Cohort, n=323) and healthy postmenopausal women (Female Cohort 1, n=185; and Female Cohort 2, n=1471), are reported...
May 18, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28515065/neonatal-vitamin-d-status-from-archived-dried-blood-spots-and-future-risk-of-fractures-in-childhood-results-from-the-d-tect-study-a-population-based-case-cohort-study
#15
Mina Nicole Händel, Peder Frederiksen, Arieh Cohen, Cyrus Cooper, Berit Lilienthal Heitmann, Bo Abrahamsen
Background: Whether antenatal and neonatal vitamin D status have clinical relevance in fracture prevention has not been examined extensively, although observational studies indicate that fetal life may be a sensitive period in relation to bone growth and mineralization during childhood.Objective: We examined whether 25-hydroxyvitamin D3 [25(OH)D3] concentrations in stored neonatal dried blood spot (DBS) samples are associated with pediatric fracture risk. We hypothesized that in particular, low neonatal vitamin D status may be a risk factor for fracture incidence among children...
May 17, 2017: American Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/28514999/severe-hypovitaminosis-d-in-active-tuberculosis-patients-and-its-predictors
#16
Qiuzhen Wang, Yufeng Liu, Yan Ma, Lei Han, Mei Dou, Yue Zou, Limei Sun, Hong Tian, Tongxia Li, Guofeng Jiang, Baoli Du, Tingyan Kou, Jiaqi Song, Frans J Kok, Evert G Schouten
BACKGROUND & AIMS: Tuberculosis (TB) patients have a significant vitamin D deficiency (VDD) endemic, which may be closely related to the onset and progress of the disease. The comorbidity of diabetes (DM) and TB has posed an increasing challenge in recent years. However, the influence of DM on TB and the possible mechanism are still uncertain. We carried out this study to identify the nutritional status of vitamin D (VD) in TB patients in a northern city in China (latitude 36° N) and investigate the possible predictors of severe vitamin D deficiency (SVDD)...
April 30, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28509123/serum-calcitriol-levels-in-a-patient-with-x-linked-hypophosphatemia-complicated-by-autosomal-dominant-polycystic-kidney-disease
#17
Satomi Kajita, Takehisa Yamamoto, Naoko Tsugawa, Hirohumi Nakayama, Takuo Kubota, Toshimi Michigami, Keiichi Ozono
Serum calcitriol [1,25(OH)2D] levels are low normal in the presence of hypophosphatemia in X-linked dominant hypophosphatemic rickets (XLH) due to elevated serum fibroblast growth factor 23 (FGF23) levels. We report a peculiar finding of markedly elevated serum 1,25(OH)2D levels in a patient with XLH complicated by autosomal dominant polycystic kidney disease (ADPKD) and retinitis pigmentosa (RP). She was diagnosed with XLH, ADPKD and RP at the age of 5, 13 and 15 years, respectively. After the diagnosis of ADPKD, the 1,25(OH)2D levels increased up to 282 pg/mL treated with a pharmacological dose of 1αOHD3 (1αOHD3)...
May 2017: CEN Case Reports
https://www.readbyqxmd.com/read/28503574/vitamin-d-modulates-hematological-parameters-and-cell-migration-into-peritoneal-and-pulmonary-cavities-in-alloxan-diabetic-mice
#18
Leonardo M Bella, Isis Fieri, Fernando H G Tessaro, Eduardo L Nolasco, Fernanda P B Nunes, Sabrina S Ferreira, Carolina B Azevedo, Joilson O Martins
Background/Aims. The effects of cholecalciferol supplementation on the course of diabetes in humans and animals need to be better understood. Therefore, this study investigated the effect of short-term cholecalciferol supplementation on biochemical and hematological parameters in mice. Methods. Male diabetic (alloxan, 60 mg/kg i.v., 10 days) and nondiabetic mice were supplemented with cholecalciferol for seven days. The following parameters were determined: serum levels of 25-hydroxyvitamin D, phosphorus, calcium, urea, creatinine, alanine aminotransferase, aspartate aminotransferase, alkaline phosphatase, red blood cell count, white blood cell count (WBC), hematocrit, hemoglobin, differential cell counts of peritoneal lavage (PeL), and bronchoalveolar lavage (BAL) fluids and morphological analysis of lung, kidney, and liver tissues...
2017: BioMed Research International
https://www.readbyqxmd.com/read/28502105/longitudinal-changes-in-serum-25-hydroxyvitamin-d-in-the-dallas-heart-study
#19
Sasan Mirfakhraee, Colby R Ayers, Darren K McGuire, Naim M Maalouf
CONTEXT: While the prevalence of vitamin D deficiency is well described in various populations, limited data are available regarding longitudinal variation in serum 25-hydroxyvitamin D concentrations. OBJECTIVES: To evaluate the temporal trends in serum 25(OH)D, prevalence of vitamin D deficiency, and factors influencing these trends. PARTICIPANTS, DESIGN AND SETTING: Adults enrolled in the Dallas Heart Study, a longitudinal, probability-based, multiethnic, population study in Dallas, Texas, USA...
May 14, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28500757/meta-analysis-of-the-effect-of-the-maternal-vitamin-d-level-on-the-risk-of-spontaneous-pregnancy-loss
#20
REVIEW
Heng Zhang, Zhaohui Huang, Limin Xiao, Xinye Jiang, Daozhen Chen, Yarong Wei
BACKGROUND: The association between vitamin D deficiency and early spontaneous pregnancy loss (SPL) is unclear. OBJECTIVES: To assess the association of serum 25-hydroxyvitamin D (25(OH)D) and SPL. SEARCH STRATEGY: Embase, PubMed, and Web of Science were searched for relevant papers published before February 20, 2016, using search terms including "vitamin D" and "pregnancy loss." SELECTION CRITERIA: Case-control and cohort studies investigating the relationship of maternal serum 25(OH)D and SPL were included...
May 13, 2017: International Journal of Gynaecology and Obstetrics
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