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25 OH VIT D

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https://www.readbyqxmd.com/read/29751936/effect-of-vitamin-d-on-the-variability-of-blood-pressure-in-premenopausal-and-menopausal-hypertensive-women-in-the-area-of-blida-algeria
#1
A Bachir Cherif, M Temmar, S Bennouar, A Bouamra, A Taleb, A Bouraghda, M T Bouafia
OBJECTIVE: To evaluate the effect of 25 (OH) vitamin D supplementation on blood pressure (BP) variability in hypertensive women in the pre-menopausal and post-menopausal periods. MATERIALS AND METHODS: 881 hypertensive women prospectively followed for an interventional study between January 2016 and September 2017, in specialized consultation at the department of internal medicine at the Blida University Hospital (Algeria). Four hundred and thiry nine premenopausal women (group I) and 442 menopausal women (group II)...
May 8, 2018: Annales de Cardiologie et D'angéiologie
https://www.readbyqxmd.com/read/29715698/antenatal-vitamin-d-preserves-placental-vascular-and-fetal-growth-in-experimental-chorioamnionitis-due-to-intra-amniotic-endotoxin-exposure
#2
Michael W Cookson, Sharon L Ryan, Gregory J Seedorf, R Blair Dodson, Steve H Abman, Erica W Mandell
BACKGROUND:  Chorioamnionitis (CA) is associated with a high risk for the development of bronchopulmonary dysplasia (BPD) after preterm birth, but mechanisms that increase susceptibility for BPD and strategies to prevent BPD are uncertain. As a model of CA, antenatal intra-amniotic (IA) endotoxin (ETX) exposure alters placental structure, causes fetal growth restriction, increases perinatal mortality, and causes sustained cardiorespiratory abnormalities throughout infancy. Vitamin D (Vit D) has been shown to have both anti-inflammatory and proangiogenic properties...
May 1, 2018: American Journal of Perinatology
https://www.readbyqxmd.com/read/29684027/chronic-calcitriol-supplementation-improves-the-inflammatory-profiles-of-circulating-monocytes-and-the-associated-intestinal-adipose-tissue-alteration-in-a-diet-induced-steatohepatitis-rat-model
#3
Yen-Bo Su, Tzu-Hao Li, Chia-Chang Huang, Hung-Cheng Tsai, Shiang-Fen Huang, Yun-Cheng Hsieh, Ying-Ying Yang, Yi-Hsiang Huang, Ming-Chih Hou, Han-Chieh Lin
Vitamin D deficiency and up-regulated TNFα-related signals are reported to be involved in abnormalities including intestinal hyper-permeability, bacterial translocation, systemic/portal endotoxemia, intestinal/adipose tissue/hepatic inflammation, and hepatic steatosis in nonalcoholic steatohepatitis (NASH). This study aims to explore the molecular mechanisms and effects of chronic calcitriol [1,25-(OH)2D3, hormonal form of vitamin D] on gut-adipose tissue-liver axis abnormalities using a high-fat diet (HFD)-fed rat model of NASH...
2018: PloS One
https://www.readbyqxmd.com/read/29681950/vitamin-d-promotes-msc-osteogenic-differentiation-stimulating-cell-adhesion-and-%C3%AE-v-%C3%AE-3-expression
#4
Francesca Posa, Adriana Di Benedetto, Elisabetta A Cavalcanti-Adam, Graziana Colaianni, Chiara Porro, Teresa Trotta, Giacomina Brunetti, Lorenzo Lo Muzio, Maria Grano, Giorgio Mori
Vitamin D (Vit D) by means of its biological active form, 1 α ,25-dihydroxyvitamin D3 (1,25(OH)2 D3 ), has a protective effect on the skeleton by acting on calcium homeostasis and bone formation. Furthermore, Vit D has a direct effect on mesenchymal stem cells (MSCs) in stimulating their osteogenic differentiation. In this work, we present for the first time the effect of 1,25(OH)2 D3 on MSC adhesion. Considering that cell adhesion to the substrate is fundamental for cell commitment and differentiation, we focused on the expression of α V β 3 integrin, which has a key role in the commitment of MSCs to the osteoblastic lineage...
2018: Stem Cells International
https://www.readbyqxmd.com/read/29619868/fibroblast-growth-factor-23-is-a-strong-predictor-of-insulin-resistance-among-chronic-kidney-disease-patients
#5
Ahmed Fayed, Mahmoud M El Nokeety, Ahmed A Heikal, Dina O Abdulazim, Mervat M Naguib, Usama A A Sharaf El Din
Insulin resistance (IR) is very common among chronic kidney disease (CKD) patients. Disturbance in mineral and bone metabolism (MBD) seems to play a role in the pathogenesis of insulin resistance. Fibroblast growth factor-23 (FGF23) is evolving as the most important link between MBD and many pathologic sequences of CKD. The aim was to evaluate IR in pre-dialysis CKD patients looking for a possible association to mineral metabolism among CKD patients. A total of 100 stage 3-5 CKD patients were selected beside 20 normal control subjects...
November 2018: Renal Failure
https://www.readbyqxmd.com/read/29608396/metabolic-syndrome-and-vitamin-d-levels-in-patients-with-obstructive-sleep-apnea-syndrome
#6
Kostas Archontogeorgis, Evangelia Nena, Nikolaos Papanas, Manfredi Rizzo, Athanasios Voulgaris, Maria Xanthoudaki, Maria Kouratzi, Georgia Ragia, Vangelis Manolopoulos, Athanasios Zissimopoulos, Marios Froudarakis, Paschalis Steiropoulos
BACKGROUND: Numerous studies have indicated that obstructive sleep apnea syndrome (OSAS), may contribute to the development of metabolic syndrome (MetS) and diabetes. Moreover, OSAS has been associated with lowered vitamin D (Vit D) levels, but reports are inconclusive. Aim of the study was to compare Vit D levels according to the presence of MetS and its components in OSAS patients. METHODS: The presence of MetS was evaluated and serum 25-hydroxy vitamin D [25(OH)D] levels were measured in consecutive newly diagnosed, by polysomnography, subjects with OSAS...
April 2, 2018: Metabolic Syndrome and related Disorders
https://www.readbyqxmd.com/read/29606435/vitamin-d-biofortified-beef-a-comparison-of-cholecalciferol-with-synthetic-versus-uvb-mushroom-derived-ergosterol-as-feed-source
#7
Sarah K Duffy, John V O'Doherty, Gaurav Rajauria, Louise C Clarke, Aoife Hayes, Kirsten G Dowling, Michael N O'Grady, Joseph P Kerry, Jette Jakobsen, Kevin D Cashman, Alan K Kelly
This study investigates dietary fortification of heifer feeds with cholecalciferol and ergocalciferol sources and effects on beef total vitamin D activity, vitamer, respective 25-hydroxymetabolite contents, and meat quality. Thirty heifers were allocated to one of three dietary treatments [(1) basal diet + 4000 IU of vitamin D3 (Vit D3 ); (2) basal diet + 4000 IU of vitamin D2 (Vit D2 ); and (3) basal diet + 4000 IU of vitamin D2 -enriched mushrooms (Mushroom D2 )] for a 30 day pre-slaughter period...
August 1, 2018: Food Chemistry
https://www.readbyqxmd.com/read/29192811/effects-of-vitamin-d-on-ovary-in-dhea-treated-pcos-rat-model-a-light-and-electron-microscopic-study
#8
Latife Seyran Çelik, Yurdun Kuyucu, Ebru Dündar Yenilmez, Abdullah Tuli, Kenan Dağlıoğlu, Ufuk Özgü Mete
AIM: The aim of this study was to investigate the effects of vitamin D treatment on ovary in experimentally designed polycystic ovary syndrome of female rats using light and electron microscopic techniques. METHODS: Twenty-four female pre-pubertal rats were divided into control, DHEA and DHEA+Vit.D groups. In DHEA group, the PCOS rat model was developed by 6mg/kg/day dehydroepiandrosterone administration as subcutaneously injections. In DHEA+Vit.D group, 6 mg/kg/day DHEA and 120ng/100g/week 1,25(OH)2D3 was performed simultaneously...
January 2018: Ultrastructural Pathology
https://www.readbyqxmd.com/read/29130299/-role-of-vitamin-d-in-female-reproduction
#9
Vincenzo DE Leo, Valentina Cappelli, Giuseppe Morgante, Alessandra DI Sabatino
La vit. D, o calcitriolo, è stata identificata inizialmente nei primi anni '20 ed ha un ruolo chiave nella regolazione del metabolismo osseo, nell'omeostasi del calcio e del fosforo e nel promuovere la mineralizzazione ossea. Le azioni della vit. D sono mediante tramite un recettore nucleare (VDR), che è espresso in numerosi organi come l'intestino, l'osso e il rene, ma anche nelle gonadi, nel seno, nel pancreas, nel sistema cardiovascolare, nel cervello (microglia) e nelle cellule del sistema immunitario...
November 10, 2017: Minerva Ginecologica
https://www.readbyqxmd.com/read/28989587/high-prevalence-of-vitamin-d-deficiency-in-newly-diagnosed-acute-myeloid-leukemia-patients-and-its-adverse-outcome
#10
Fatere Seyedalipour, Ava Mansouri, Mohammad Vaezi, Kheirollah Gholami, Kazem Heidari, Molouk Hadjibabaie, Ardeshir Ghavamzadeh
Background: Although several studies have supported a preventive and therapeutic role of vitamin D (Vit D) for different types of cancers, we face insufficient documentation in acute myeloid leukemia (AML). So, we examined whether the serum calcidiol (25(OH)D) levels at the time of induction therapy have any impact on response and relapse in AML patients. Materials and Methods: Blood samples were collected from 65 patients on days 0 and 28th of treatment to evaluate serum concentration of 25(OH)D and its effects on complete remission (CR) achievement, relapse rate and hospitalization length...
July 1, 2017: International Journal of Hematology-oncology and Stem Cell Research
https://www.readbyqxmd.com/read/28893306/monitored-supplementation-of-vitamin-d-in-preterm-infants-mosvid-trial-study-protocol-for-a-randomised-controlled-trial
#11
Alicja Kołodziejczyk, Maria K Borszewska-Kornacka, Joanna Seliga-Siwecka
BACKGROUND: The pivotal role of vitamin D (vit D) in skeletal health is well known. Neonatal vit D storage at birth is dependent on maternal levels, and newborns receive 50-70% of their mother's 25-hydroxyvitamin D [25(OH)D]. Deficiency of vit D can lead to prematurity bone disease, with an incidence of up to 55% in infants weighing < 1000 g. The aim of this study is to assess the effectiveness of monitored supplementation of vit D in a population of preterm infants. METHODS/DESIGN: Preterm infants born at 24-32 weeks of gestation will be recruited within the first 7 days of life...
September 11, 2017: Trials
https://www.readbyqxmd.com/read/28831601/endothelin-1-%C3%AE-klotho-25-oh-vit-d-levels-and-severity-of-disease-in-scleroderma-patients
#12
Mehrzad Hajialilo, Parisa Noorabadi, Sepideh Tahsini Tekantapeh, Aida Malek Mahdavi
Considering the role of endothelin-1 (ET-1) in tissue remodeling and fibrosis during the development of scleroderma as well as the effect of α-Klotho in pathogenesis of calcinosis and/or endothelial cell injury and its correlation with severity of disease, this study aimed to evaluate serum ET-1, α-Klotho and 25(OH) vitamin D levels in patients with limited and diffuse scleroderma compared to healthy subjects. In this cross-sectional study, 60 scleroderma patients according to the ACR/EULAR 2013 criteria and 60 age- and sex-matched healthy controls were included...
October 2017: Rheumatology International
https://www.readbyqxmd.com/read/28797922/vitamin-d-receptor-expression-and-potential-role-of-vitamin-d-on-cell-proliferation-and-steroidogenesis-in-goat-ovarian-granulosa-cells
#13
Xiaolei Yao, Guomin Zhang, Yixuan Guo, Mohamed Ei-Samahy, Shuting Wang, Yongjie Wan, Le Han, Zifei Liu, Feng Wang, Yanli Zhang
This study aimed to investigate the expression of the vitamin D receptor (VDR) in goat follicles and to determine the effects of Vit D3 supplementation on goat granulosa cells (GCs) function linked to follicular development. The results demonstrated that VDR was prominently localized in GCs, with expression increasing with follicle diameter. Addition of Vit D3 (1α,25-(OH)2VD3; 10 nM) to GCs caused an increase in VDR and in steroidogenic acute regulator (StAR) and 3β-hydroxysteroid dehydrogenase (3β-HSD) mRNA expression...
August 3, 2017: Theriogenology
https://www.readbyqxmd.com/read/28698476/acute-supplementation-with-high-dose-vitamin-d3-increases-serum-anti-m%C3%A3-llerian-hormone-in-young-women
#14
Nicola A Dennis, Lisa A Houghton, Michael W Pankhurst, Michelle J Harper, Ian S McLennan
Anti-Müllerian hormone (AMH) is a paracrine regulator of ovarian follicles. Vitamin D (Vit D) regulates AMH production in vitro, but its role as a regulator of ovarian AMH production is contentious. If Vit D influences ovarian AMH production, then an acute rise in Vit D level should lead to an acute rise in circulating AMH levels. This hypothesis was tested with a randomized double-blind design, with 18-25-year-old women recruited from the community. The study was conducted in early spring, when the marker of Vit D level (25-hydroxyvitamin D, 25(OH)D) tends to be at its nadir...
July 8, 2017: Nutrients
https://www.readbyqxmd.com/read/28660088/high-vitamin-d-levels-may-downregulate-inflammation-in-patients-with-beh%C3%A3-et-s-disease
#15
Fahd Adeeb, Maria Usman Khan, Xia Li, Austin G Stack, Joseph Devlin, Alexander D Fraser
Vitamin D plays a significant role in the immune system modulation and may confer a protective role in autoimmune diseases. We conducted a case-control study to compare 25(OH)D levels in patients with BD who were managed at a regional rheumatology programme in the midwest region of Ireland compared to matched controls. Healthy controls were selected from the Irish health system and matched in 1 : 5 ratio for age, sex, and the month of the year. 25(OH)D levels <20 nmol/L were classified as deficient while levels between 20 and 40 nmol/L were classified as insufficient...
2017: International Journal of Inflammation
https://www.readbyqxmd.com/read/28593917/vitamin-d-deficiency-in-pregnancy-at-term-risk-factors-and-pregnancy-outcomes
#16
Chui Ling Lee, Beng Kwang Ng, Loo Ling Wu, Fook Choe Cheah, Hanita Othman, Nor Azlin Mohamed Ismail
Background Vitamin D deficiency during pregnancy is a worldwide epidemic. The aim of this study was to determine the prevalence of vitamin D deficiency, its predictive factors and the association with pregnancy outcomes. Materials and methods This was a prospective observational study in a tertiary teaching hospital over 2-years' duration from August 2013 to August 2015. A total of 680 women who completed 37 weeks of pregnancy were recruited. Results Five hundred and seventy-five patients were enrolled in the final analysis for pregnancy outcomes (response rate of 84...
May 26, 2017: Hormone Molecular Biology and Clinical Investigation
https://www.readbyqxmd.com/read/28559717/serum-vitamin-d-levels-in-indian-patients-with-retinal-venous-occlusions
#17
Avadhesh Oli, D Joshi
PURPOSE: To estimate serum vitamin D (25 OH D) level in patients of retinal vein occlusion (RVO) and compare it with age-matched controls. METHODS AND MATERIAL: Forty patients above 18 years of age with retinal vein occlusion and forty age-matched controls underwent serum vitamin D (Vit D) level estimation using a standard protocol. Student's t test was used to analyse differences between the mean of two groups. RESULTS: The mean age in RVO and control group was 60...
April 2017: Saudi Journal of Ophthalmology: Official Journal of the Saudi Ophthalmological Society
https://www.readbyqxmd.com/read/28552071/vitamin-d-levels-in-middle-aged-patients-with-obstructive-sleep-apnoea-syndrome
#18
K Archontogeorgis, E Nena, N Papanas, A Zissimopoulos, A Voulgaris, M Xanthoudaki, V Manolopoulos, M Froudarakis, P Steiropoulos
BACKGROUND: Vitamin D (Vit D) insufficiency has been implicated in the pathophysiology of numerous diseases. Obstructive sleep apnoea syndrome (OSAS), a disorder associated with increased cardiovascular and cerebrovascular morbidity, has been associated with lowered Vit D levels, but reports are inconclusive. AIM: To evaluate the association between serum 25-hydroxyvitamin D [25(OH)D], a marker of Vit D status, and anthropometric and sleep characteristics of OSAS patients and to compare those levels between OSAS patients and non-apnoeic controls...
May 28, 2017: Current Vascular Pharmacology
https://www.readbyqxmd.com/read/28540270/fgf-23-klotho-and-vitamin-d-levels-in-scleroderma
#19
Ravan Ahmadi, Mehrzad Hajialilo, Amir Ghorbanihaghjo, Ali Mota, Sina Raeisi, Nasrin Bargahi, Mohammad Valilo, Farahnaz Askarian
BACKGROUND: Scleroderma is a chronic connective tissue disease of unknown etiology. Vitamin D and parathyroid hormone (PTH) that play particular functions in calcium and phosphate homeostasis may be involved in the etiology of this disorder. Klotho, the co-receptor of the fibroblast growth factor 23 (FGF-23), can interfere with calcium and phosphate metabolism. The purpose of this study was to evaluate serum Klotho, FGF-23, intact PTH (iPTH) and vitamin D levels in scleroderma patients compared with the healthy controls...
April 2017: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28475159/acute-vitamin-d%C3%A2-supplementation-in-severe-obesity-evaluation-of-multimeric-adiponectin
#20
Stefania Mai, Gillian E Walker, Roberta Vietti, Stefania Cattaldo, Chiara Mele, Lorenzo Priano, Alessandro Mauro, Gianni Bona, Gianluca Aimaretti, Massimo Scacchi, Paolo Marzullo
Obesity predisposes to vitamin D deficiency (VDD) and glucose abnormalities. It is currently debated if vitamin D administration may improve glucose homeostasis by interacting with modulators of insulin sensitivity, such as adiponectin and its oligomers. In a 4-week inpatient study on a metabolic rehabilitation program, consisting of individualized caloric restriction and aerobic physical exercise in obese subjects with VDD, we assessed the acute effects of 600,000 IU cholecalciferol given per os VD group, 12 subjects; body mass index (BMI) 42...
May 5, 2017: Nutrients
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