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https://www.readbyqxmd.com/read/29222903/vitamin-d-status-and-cardiometabolic-risk-factors-in-young-adults-in-hong-kong-associations-and-implications
#1
Erica Wei-Lan Wang, Marco Yiu-Chung Pang, Parco Ming-Fai Siu, Claudia Kam-Yuk Lai, Jean Woo, Andrew R Collins, Iris Ff Benzie
BACKGROUND AND OBJECTIVES: Vitamin D deficiency is reportedly common, but we lack data from young adults. Such data are of interest because epidemiological data support vitamin D as a possible risk modulator for diabetes and cardiovascular ('cardiometabolic') disease. Our objectives were to assess vitamin D status (as plasma 25(OH)D concentration) and investigate associations between this and biomarkers of cardiometabolic disease risk in a group of still-healthy young adults in Hong Kong...
2018: Asia Pacific Journal of Clinical Nutrition
https://www.readbyqxmd.com/read/29221945/the-relationship-of-physical-performance-and-osteoporosis-prevention-with-vitamin-d-in-older-african-americans-poda
#2
Ruban Dhaliwal, Mageda Mikhail, Gianina Usera, Alexandra Stolberg, Shahidul Islam, Louis Ragolia, John F Aloia
RATIONALE: Vitamin D deficiency is associated with bone loss, poor muscle strength, falls and fracture. This information in older African Americans (AAs) is sparse. OBJECTIVE: The study of the relationship of Physical performance, Osteoporosis prevention with vitamin D in older African Americans (PODA) is a randomized, double-blind, placebo-controlled 3-year trial examining the effect of vitamin D on bone loss and physical performance in older AA women. METHODS: 260 healthy AA women aged >60years were assigned to receive placebo or vitamin D3...
December 5, 2017: Contemporary Clinical Trials
https://www.readbyqxmd.com/read/29220424/genetically-deprived-vitamin-d-exposure-predisposes-to-atrial-fibrillation
#3
Yap-Hang Chan, Kai-Hang Yiu, Jo Jo Hai, Pak-Hei Chan, Tai-Hing Lam, Ben J Cowling, Pak-Chung Sham, Chu-Pak Lau, Karen Siu-Ling Lam, Chung-Wah Siu, Hung-Fat Tse
Aims: Low vitamin D level is associated with atrial fibrillation (AF) and may be implicated in its pathogenesis. Methods and results: We studied single nucleotide polymorphisms (SNPs) of vitamin D mechanistic pathways and serum 25-hydroxyvitamin D [25(OH)D] levels in an age- and gender-matched case-control study (controls without AF: mean age 68.6 ± 8.7 years, female 25%; n = 1019; with AF: mean age 69.7 ± 9.5 years, female 30%; n = 156) recruited from a Chinese clinical cohort of patients with stable coronary artery disease...
December 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/29217929/maternal-vitamin-d-deficiency-a-culprit-for-hypocalcaemia-induced-myocardial-failure-in-a-four-month-old-infant-a-case-report-from-tikur-anbessa-specialized-hospital-ethiopia
#4
Tamirat Moges, Yemisirach Shiferaw, Tigist Heye
Background: A rare but reversible cause of dilated cardiomyopathy occurs in infants born to vitamin D deficient mothers due to hypocalcaemia. Case Report: We report a case of dilated cardiomyopathy due to hypocalcaemia secondary to maternal vitamin D deficiency in an infant presented with seizure disorder and heart failure. This was a four-month old female infant with respiratory distress and acute heart failure. The cause of her cardiac failure was dilated cardiomyopathy...
May 2017: Ethiopian Journal of Health Sciences
https://www.readbyqxmd.com/read/29217650/serum-and-urine-vitamin-d-metabolite-analysis-in-early-preeclampsia
#5
Jennifer Tamblyn, Carl Jenkinson, Dean Larner, Martin Hewison, Mark Kilby
Vitamin D-deficiency is common in pregnant women, and may contribute to adverse events in pregnancy such as preeclampsia (PET). To date, studies of vitamin D and PET have focused primarily on serum concentrations vitamin D, 25-hydroxyvitamin D3 (25(OH)D3) later in pregnancy. The aim here was to determine whether a more comprehensive analysis of vitamin D metabolites earlier in pregnancy could provide predictors of PET. Using samples from the SCOPE pregnancy cohort, multiple vitamin D metabolites were quantified by liquid chromatography-tandem mass spectrometry in paired serum and urine prior to the onset of PET symptoms...
December 7, 2017: Endocrine Connections
https://www.readbyqxmd.com/read/29217467/why-should-we-measure-free-25-oh-vitamin-d
#6
REVIEW
Oleg Tsuprykov, Xin Chen, Carl-Friedrich Hocher, LianghongYin, Berthold Hocher
Vitamin D, either in its D2 or D3 form, is essential for normal human development during intrauterine life, kidney function and bone health. Vitamin D deficiency has also been linked to cancer development and some autoimmune diseases. Given this huge impact of vitamin D on human health, it is important for daily clinical practice and clinical research to have reliable tools to judge on the vitamin D status. The major circulating form of vitamin D3 is 25-hydroxyvitamin D3 (25(OH)D), although is not the most active metabolite, the concentrations of total 25-hydroxy vitamin D3 in the serum are currently routinely used in clinical practice to assess vitamin D status...
December 4, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29216203/dose-responses-of-vitamin-d3-supplementation-on-arterial-stiffness-in-overweight-african-americans-with-vitamin-d-deficiency-a-placebo-controlled-randomized-trial
#7
Anas Raed, Jigar Bhagatwala, Haidong Zhu, Norman K Pollock, Samip J Parikh, Ying Huang, Robyn Havens, Ishita Kotak, De-Huang Guo, Yanbin Dong
BACKGROUND: Clinical trials are scant and equivocal on whether vitamin D can ameliorate arterial stiffness, particularly in populations at high risk for vitamin D deficiency and cardiovascular disease (CVD). This study determined the dose-response effects of vitamin D3 supplementation on arterial stiffness in overweight African Americans with vitamin D deficiency. METHODS: Seventy overweight African Americans (aged 13-45 years) with serum 25-hydroxyvitamin D [25(OH)D] levels ≤ 20 ng/mL were randomized to monthly oral supplementation of 18,000 IU (~600 IU/day, n = 17), 60,000 IU (~2000 IU/day, n = 18), or 120,000 IU (~4000 IU/day, n = 18) of vitamin D3 or placebo (n = 17) for 16-weeks...
2017: PloS One
https://www.readbyqxmd.com/read/29214886/clinical-and-molecular-aspects-of-lead-toxicity-an-update
#8
Prasenjit Mitra, Shailja Sharma, Purvi Purohit, Praveen Sharma
Lead toxicity is a major public health issue in developed and developing countries. Both acute and chronic lead exposure has the potential to cause many deleterious systematic effects including hypertension, frank anemia, cognitive deficits, infertility, immune imbalances, delayed skeletal and deciduous dental development, vitamin D deficiency, and gastrointestinal effects. The underlying mechanisms for all these systemic effects have not been elucidated completely. However, the most plausible cause is free radical damage...
December 7, 2017: Critical Reviews in Clinical Laboratory Sciences
https://www.readbyqxmd.com/read/29212598/the-association-between-vitamin-d-deficiency-and-metabolic-syndrome-in-korean-adolescents
#9
Yoon-Sook Kim, Jeong Hae Hwang, Mi Ryeong Song
PURPOSE: This study aimed to analyze the demographic characteristics associated with vitamin D deficiency, as well as the association between vitamin D deficiency and metabolic syndrome, among Korean adolescents. DESIGN AND METHODS: This cross-sectional descriptive study involved 2314 adolescents aged 12-18years. Participant data were extracted from the Korean National Health and Nutrition Examination Survey conducted between January 2010 and December 2014. A logistic regression analysis was performed to analyze the association between vitamin D and metabolic syndrome...
December 3, 2017: Journal of Pediatric Nursing
https://www.readbyqxmd.com/read/29212579/time-course-of-vitamin-d-depletion-and-repletion-in-reproductive-age-female-c57bl-6-mice
#10
Anthony M Belenchia, Sarah A Johnson, Alyssa C Kieschnick, Cheryl S Rosenfeld, Catherine A Peterson
The use of animal models in vitamin D deficiency (VDD) research, particularly in regard to maternal deficits, has increased dramatically, yet these studies may be confounded due to ill-conceived experimental timelines. We conducted 2 experiments to (1) characterize the time course of VDD induction and repletion and (2) explore the long-term consequences of VDD on calcium homeostasis and body composition in reproductive-age female mice. Eight-week-old female C57BL/6 mice were randomized to receive either a vitamin D sufficient (VDS) or VDD diet; serum was collected weekly...
December 1, 2017: Comparative Medicine
https://www.readbyqxmd.com/read/29209851/elevated-parathyroid-hormone-levels-after-successful-parathyroidectomy-for-primary-hyperparathyroidism-a-clinical-review
#11
REVIEW
Roberto de la Plaza Llamas, José Manuel Ramia Ángel, Vladimir Arteaga Peralta, Cristina García Amador, Aylhín Joana López Marcano, Aníbal Armando Medina Velasco, Begoña González Sierra, Alba Manuel Vázquez, Raquel Aránzazu Latorre Fragua
INTRODUCTION: Surgery for primary hyperparathyroidism (PHPT) is traditionally deemed to be successful if serum calcium levels return to normal 6 months after parathyroidectomy. Regular monitoring of serum calcium and parathyroid hormone (PTH) in the follow-up of patients after parathyroidectomy for PHPT has drawn attention to the presence of a normocalcemic group of patients with elevated PTH (NCePTH) during the post-operative period. The etiological factors and mechanisms underlying this condition, its consequences, and the possibility of treatment are the object of this study...
December 5, 2017: European Archives of Oto-rhino-laryngology
https://www.readbyqxmd.com/read/29209689/could-a-vitamin-d-deficiency-cause-a-combined-long-term-fev1-and-bone-mineral-density-deterioration-in-female-asthmatics
#12
B Sposato, M Scalese, L Petruzzelli, E Baldini, N Nikiforakis, M Tosti Balducci
OBJECTIVES: We already know that asthma is associated to osteoporosis/osteopenia and characterized by an accelerated lung function decline. Our study aimed at assessing whether lung function decline and bone mineral density (BMD) deterioration in time were associated in a group of female long-standing asthmatics. We also tried to understand whether these two aspects were related to ICS treatment and vitamin D levels. METHODS: 35 female asthmatics were retrospectively analysed...
November 2017: La Clinica Terapeutica
https://www.readbyqxmd.com/read/29208234/vitamin-d-attenuates-sphingosine-1-phosphate-s1p-mediated-inhibition-of-extravillous-trophoblast-migration
#13
Melissa Westwood, Khiria Al-Saghir, Sarah Finn-Sell, Cherlyn Tan, Elizabeth Cowley, Stéphane Berneau, Daman Adlam, Edward D Johnstone
INTRODUCTION: Failure of trophoblast invasion and remodelling of maternal blood vessels leads to the pregnancy complication pre-eclampsia (PE). In other systems, the sphingolipid, sphingosine-1-phosphate (S1P), controls cell migration therefore this study determined its effect on extravillous trophoblast (EVT) function. METHODS: A transwell migration system was used to assess the behaviour of three trophoblast cell lines, Swan-71, SGHPL-4, and JEG3, and primary human trophoblasts in the presence or absence of S1P, S1P pathway inhibitors and 1,25(OH)2D3...
December 2017: Placenta
https://www.readbyqxmd.com/read/29207798/does-vitamin-d-supplementation-improve-glycaemic-control-in-children-with-type-1-diabetes-mellitus-a-randomized-controlled-trial
#14
Shreya Sharma, Niranjan Biswal, Adhisivam Bethou, Medha Rajappa, Sadish Kumar, Vickneshwaran Vinayagam
Introduction: Vitamin D endocrine system is a potential immune system modulator and has been implicated in the pathogenesis of several autoimmune diseases including Type 1 Diabetes Mellitus (T1DM). Studies have demonstrated an inverse risk relationship between T1DM and Vitamin D levels and also, shown a reduced risk of the disease with its supplementation. Aim: To evaluate the role of Vitamin D as an adjuvant in improving glycaemic control and residual pancreatic beta-cell function...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207757/vitamin-d-levels-and-associations-in-indian-patients-with-primary-sj%C3%A3-gren-s-syndrome
#15
Pulukool Sandhya, Gowri Mahasampath, Puneet Mashru, Joseph Dian Bondu, Victoria Job, Debashish Danda
Introduction: Vitamin D is a steroid hormone belonging to the class of secosteroids with myriad immune functions and has been implicated in aetiopathogenesis of various autoimmune diseases. Although, there have been various studies showing the association of vitamin D in rheumatoid arthritis and lupus in different populations, there have been limited studies on vitamin D and primary Sjögren's Syndrome (pSS). There are no studies on association of vitamin D and pSS from any tropical country including Indian subcontinent...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207705/serum-vitamin-d-level-as-a-risk-factor-for-female-genital-tuberculosis-fgtb
#16
Swati Gautam, Amita Jain, Salman Akhtar, Apala Priyadarshini, Shyam Pyari Jaiswar
Introduction: Vitamin D is now known to be essential to Mycobacterium tuberculosis containment and killing through activation of 25-hydroxyvitamin-D receptors (VDRs) present on all immune cells or obtained from dietary food stuffs as either vitamin D3 or vegetable vitamin D2 (also known as ergocalciferol). Aim: To evaluate the association of serum vitamin D level between the Female Genital Tuberculosis (FGTB) cases and healthy controls. Materials and Methods: Total 120 cases and 120 controls enrolled for the study following inclusion and exclusion criteria...
September 2017: Journal of Clinical and Diagnostic Research: JCDR
https://www.readbyqxmd.com/read/29207490/is-trabecular-bone-score-valuable-in-bone-microstructure-assessment-after-gastric-bypass-in-women-with-morbid-obesity
#17
Agustina Pia Marengo, Fernando Guerrero Pérez, Luis San Martín, Rosa Monseny, Anna Casajoana, Rocio Valera, Nuria Virgili, Andreu Simó Servat, Albert Prats, Carmen Gómez-Vaquero, Nuria Vilarrasa
INTRODUCTION: The effects of bariatric surgery on skeletal health raise many concerns. Trabecular bone score (TBS) is obtained through the analysis of lumbar spine dual X-ray absorptiometry (DXA) images and allows an indirect assessment of skeletal microarchitecture (MA). The aim of our study was to evaluate the changes in bone mineral density (BMD) and alterations in bone microarchitecture assessed by TBS in morbidly obese women undergoing Roux-en-Y gastric bypass (RYGB), over a three-year follow-up...
December 2, 2017: Nutrients
https://www.readbyqxmd.com/read/29205876/vitamin-d-does-not-play-a-functional-role-in-adipose-tissue-development-in-rodent-models
#18
Alexandra Schutkowski, Daniela Max, Markus Bönn, Corinna Brandsch, Sarah M Grundmann, Frank Hirche, Martin S Staege, Gabriele I Stangl
SCOPE: Several studies have proposed a role of vitamin D in adipogenesis. Here, we sought to study the impact of the vitamin D receptor (Vdr) on adipocyte size in young and old mice and the effect of maternal vitamin D deficiency on fetal adipogenesis. METHODS AND RESULTS: Histological analysis of adipose tissues showed that Vdr knockout (KO) mice had smaller adipocytes than wild-type (WT) mice. Next, we compared young and old Vdr-KO and WT mice and found no differences in adipocyte sizes between weaned Vdr-KO mice and WT mice...
December 5, 2017: Molecular Nutrition & Food Research
https://www.readbyqxmd.com/read/29205625/vitamin-d-facilitates-trophoblast-invasion-through-induction-of-epithelial-mesenchymal-transition
#19
Ryang Hee Kim, Byung Jun Ryu, Ki Mo Lee, Jae Won Han, Sung Ki Lee
PROBLEM: Vitamin D deficiency increases the risk of developing pregnancy-related complications, including preeclampsia and small-for-gestational-age infants. Vitamin D was demonstrated to promote the invasiveness of human extravillous trophoblasts (EVTs). However, whether vitamin D induces the epithelial-mesenchymal transition (EMT) of EVTs remains unclear. Therefore, we investigated whether vitamin D promotes EMT and the related signaling pathways. METHOD OF STUDY: In this study, we performed EMT experiments using JAR cells based on the expression of the mesenchymal markers and vitamin D receptor...
December 4, 2017: American Journal of Reproductive Immunology: AJRI
https://www.readbyqxmd.com/read/29204297/which-environmental-factor-is-correlated-with-long-term-multiple-sclerosis-incidence-trends-ultraviolet-b-radiation-or-geomagnetic-disturbances
#20
Seyed Aidin Sajedi, Fahimeh Abdollahi
Background: Insufficient received ultraviolet B radiation (UV) is regarded as the main environmental risk factor (RF) for MS in vitamin D deficiency hypothesis. Nevertheless, geomagnetic disturbance (GMD) has also been proposed as a potential trigger for MS in GMD hypothesis. The aim of this study was to investigate which of these mentioned RF is correlated with long-term ultradecadal MS incidence. Methods: After a systematic search, long-term incidence reports of the United Kingdom (UK), Denmark, Tayside County, Nordland County, the Orkney, and Shetland Islands were selected for this retrospective time-series study...
2017: Multiple Sclerosis International
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