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25 OH VIT D

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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
#1
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
#2
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
#3
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
#4
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
#5
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
#6
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
#7
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
#8
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
https://www.readbyqxmd.com/read/28470390/biallelic-mutations-in-cyp24a1-or-slc34a1-as-a-cause-of-infantile-idiopathic-hypercalcemia-iih-with-vitamin-d-hypersensitivity-molecular-study-of-11-historical-iih-cases
#9
Ewa Pronicka, Elżbieta Ciara, Paulina Halat, Agnieszka Janiec, Marek Wójcik, Elżbieta Rowińska, Dariusz Rokicki, Paweł Płudowski, Ewa Wojciechowska, Aldona Wierzbicka, Janusz B Książyk, Agnieszka Jacoszek, Martin Konrad, Karl P Schlingmann, Mieczysław Litwin
Idiopathic infantile hypercalcemia (IIH) is a mineral metabolism disorder characterized by severe hypercalcemia, failure to thrive, vomiting, dehydration, and nephrocalcinosis. The periodical increase in incidence of IIH, which occurred in the twentieth century in the United Kingdom, Poland, and West Germany, turned out to be a side effect of rickets over-prophylaxis. It was recently discovered that the condition is linked to two genes, CYP24A1 and SLC34A1. The aim of the study was to search for pathogenic variants of the genes in adult persons who were shortlisted in infancy as IIH caused by "hypersensitivity to vit...
August 2017: Journal of Applied Genetics
https://www.readbyqxmd.com/read/28418990/bone-density-microarchitecture-and-tissue-quality-after-long-term-treatment-with-tenofovir-emtricitabine-or-abacavir-lamivudine
#10
Robert Güerri-Fernández, Daniel Molina-Morant, Judit Villar-García, Sabina Herrera, Alicia González-Mena, Ana Guelar, Marta Trenchs-Rodríguez, Adolfo Díez-Pérez, Hernando Knobel
OBJECTIVES: HIV infection has been associated with reduced bone mineral density (BMD). Antiretroviral therapy (ART) has a deleterious effect on BMD, but its effect on bone fragility is not clear. The objective of this study is to analyze the BMD, microarchitecture, and tissue quality of bone in patients receiving long-term tenofovir- or abacavir-based ART. DESIGN: We conducted a cross-sectional study in patients with HIV undergoing tenofovir or abacavir ART for more than 5 years...
July 1, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28129773/investigation-of-the-vitamin-d-nutritional-status-in-women-with-gestational-diabetes-mellitus-in-beijing
#11
Yanping Liu, Qiaer Jin, Yuanyuan Bao, Shanshan Li, Jing Wang, Ling Qiu
BACKGROUND: Vitamin D deficiency is a common issue, which has relation with GDM, during the pregnant period. To study the Vitamin D nutritional status of pregnant women with gestational diabetes mellitus (GDM) in the middle and late pregnancy and analyze the different sources of Vitamin D intake. METHODS: A total of ninety-eight pregnant women with GDM were enrolled voluntarily in this study. The patients were divided into two groups, Vitamin D supplement intake and control group...
January 28, 2017: Lipids in Health and Disease
https://www.readbyqxmd.com/read/28028396/the-hidden-function-of-vitamin-d
#12
Hiba Sibaii, Salwa Refat El-Zayat, Azza Abd El-Shaheed, Nermine N Mahfouz, Sara F Sallam, Marwa H El Azma
AIM: There are no reports regarding the influence of vitamin D on thymosin ß4 and the cluster of differentiation CD4 levels which are important for maintaining a healthy immune system. Consequently, we aimed to explore this relationship through a study. MATERIAL AND METHODS: The study was carried out on 35 subjects, screened for 25-hydroxy vitamin D[25 (OH) D] using ELISA method and they were divided into two groups: Group 1 consists of 10 healthy subjects with sufficient vit...
December 15, 2016: Open Access Macedonian Journal of Medical Sciences
https://www.readbyqxmd.com/read/27956902/vitamin-d-effects-on-osteoblastic-differentiation-of-mesenchymal-stem-cells-from-dental-tissues
#13
Francesca Posa, Adriana Di Benedetto, Graziana Colaianni, Elisabetta A Cavalcanti-Adam, Giacomina Brunetti, Chiara Porro, Teresa Trotta, Maria Grano, Giorgio Mori
1α,25-Dihydroxyvitamin D3 (1,25(OH)2D3), the active metabolite of vitamin D (Vit D), increases intestinal absorption of calcium and phosphate, maintaining a correct balance of bone remodeling. Vit D has an anabolic effect on the skeletal system and is key in promoting osteoblastic differentiation of human Mesenchymal Stem Cells (hMSCs) from bone marrow. MSCs can be also isolated from the immature form of the tooth, the dental bud: Dental Bud Stem Cells (DBSCs) are adult stem cells that can effectively undergo osteoblastic differentiation...
2016: Stem Cells International
https://www.readbyqxmd.com/read/27846770/the-relationship-between-balance-and-vitamin-25-oh-d-in-fibromyalgia-patients
#14
Meliha Kasapoğlu Aksoy, Lale Altan, Burcu Ökmen Metin
INTRODUCTION: Fibromyalgia syndrome (FMS) is a chronic disease characterized by diffuse pain of unknown cause, fatigue, sleep disorders, cognitive dysfunction, and sensitivity. Fibromyalgia was shown to be associated with balance problems and increased incidence of falls. There are many theoretical mechanisms related to the impact of vitamin D on postural control. The aim of the current study was to investigate the relationship between vitamin 25(OH)D levels and pain, balance and daily activities in patients with FMS...
December 9, 2016: Modern Rheumatology
https://www.readbyqxmd.com/read/27769784/vitamin-d3-supplementation-among-adult-patients-with-cystic-fibrosis
#15
Adèle Coriati, Évelyne Labrèche, Marjolaine Mailhot, Hortensia Mircescu, Yves Berthiaume, Annick Lavoie, Rémi Rabasa-Lhoret
BACKGROUND & AIMS: Vitamin D (Vit D) deficiency in cystic fibrosis (CF) is partially secondary to exocrine pancreatic insufficiency. Our aim was to establish a Vit D3 supplementation protocol that will increase 25(OH)D to the recommended level (30 ng/mL). METHODS: Retrospective study of 200 patients (≥18 years) conducted from February 2007 to June 2014 at the CF clinic of the Centre Hospitalier de l'Université de Montréal. Vit D3 supplementation protocol was 1600 IU/day or 10,000 IU/week during the summer (May 1st to October 31st) and 3200 IU/day or 20,000 IU/week during the winter (November 1st to April 30th), in addition to the 1200 IU/day included in multivitamins...
October 8, 2016: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/27650228/vitamin-d-supplementation-not-so-simple-in-sarcoidosis
#16
Amik Sodhi, Thomas Aldrich
INTRODUCTION: Americans are increasingly receiving vitamin D supplementation, often based on low-measured 25-hydroxy-vitamin D (25-OH-vit D). In sarcoidosis, there is often increased metabolism of 25-OH-vit D to 1,25-dihydroxy-vitamin D (1,25-OH-vit D), so 25-OH-vit D may remain low, despite high levels of 1,25-OH-vit D. In such cases, vitamin D supplementation may lead to hypercalcemia. METHODS: We randomly selected 196 patients with sarcoidosis who received at least 1 prescription of vitamin D between 2005 and 2011 and 196 control patients...
September 2016: American Journal of the Medical Sciences
https://www.readbyqxmd.com/read/27616756/vitamin-d-levels-vitamin-d-supplementation-and-prognosis-in-patients-with-chronic-kidney-disease%C3%A2
#17
Yossef Namir, Matan J Cohen, Yosef S Haviv, Itzchak Slotki, Linda Shavit
BACKGROUND: Vitamin D (Vit D) deficiency plays a central role in the pathogenesis of chronic kidney disease (CKD) complications, both skeletal and nonskeletal. The purpose of this study was to examine whether 25(OH)D levels and supplementation with oral cholecalciferol (Vitamin D3 (Vit D3)) are associated with morbidity and mortality among patients with significant CKD. METHODS: CKD patients attending the nephrology clinic at Shaare Zedek Medical Center between July 1, 2008 and January 31, 2012, tested at least twice for 25(OH)D levels, were enrolled...
October 2016: Clinical Nephrology
https://www.readbyqxmd.com/read/27605743/current-scenario-of-prevalence-of-vitamin-d-deficiency-in-ostensibly-healthy-indian-population-a-hospital-based-retrospective-study
#18
Kirtikar Shukla, Shikha Sharma, Aditi Gupta, Arun Raizada, Kamini Vinayak
25-hydroxy vitamin D [25(OH) vit D] deficiency is a serious public health problem, particularly in the Indian sub-continent. The objective of the present study was to study the prevalence of 25(OH) vit D in different age groups. The data of 25(OH) vit D assay of 26,346 ostensibly healthy individuals, enrolled under executive health checkup at Medanta The Medicity, Gurgaon, over a period of 3 years, were extracted from the hospital information system and reviewed extensively. 25(OH) vit D deficiency (VDD) was defined as 25(OH) vit D < 20 ng/ml, insufficiency (VDI) as 25(OH) vit D between 20 and 40 ng/ml and 25(OH) vit D sufficiency (VDS) as 25(OH) D > 40 ng/mL...
October 2016: Indian Journal of Clinical Biochemistry: IJCB
https://www.readbyqxmd.com/read/27574411/plasma-homocysteine-level-is-a-risk-factor-for-osteoporotic-fractures-in-elderly-patients
#19
Yuefeng Zhu, Jie Shen, Qun Cheng, Yongqian Fan, Weilong Lin
OBJECTIVE: To study the relationship of plasma homocysteine (Hcy), bone turnover biomarkers (BTB), and bone mineral density (BMD) with osteoporotic fracture (OPF) in elderly people. METHODS: Eighty-two patients (aged 65 years or older) admitted to our orthopedics department between October 2014 and May 2015 were randomly divided into three groups: 1) OPF group: 39 cases with the mean age 81.82±5.49 years, which included 24 females and 15 males; 2) high-energy fracture (HEF) group: 22 cases with the mean age 78...
2016: Clinical Interventions in Aging
https://www.readbyqxmd.com/read/27476528/prevalence-of-vitamin-d-deficiency-and-calcium-homeostasis-in-saudi-children
#20
MULTICENTER STUDY
Adnan M Al Shaikh, Bahaa Abaalkhail, Ashraf Soliman, Ibrahim Kaddam, Khalid Aseri, Yousef Al Saleh, Ali Al Qarni, Ahmed Al Shuaibi, Waleed Al Tamimi, Abdel Moniem Mukhtar
OBJECTIVE: Vitamin D deficiency (VDD) and vitamin D insufficiency (VDI) are significant health problems all over the world. The aim of this study was to determine the prevalence of VDD and VDI in children and adolescents residing in 8 provinces in the Kingdom of Saudi Arabia and to also investigate calcium homeostasis in these subjects. METHODS: A cross-sectional study was conducted in 2110 participants aged between 6 and 15 years. Information on socio-demographic status, anthropometric measurements, knowledge about vitamin D, color of the skin, dietary intake, sun exposure experience, smoking, and physical activity were collected through a questionnaire given to the parents of all subjects...
December 1, 2016: Journal of Clinical Research in Pediatric Endocrinology
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