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https://www.readbyqxmd.com/read/29232323/racial-variation-in-total-knee-replacement-in-a-diverse-nationwide-clinical-trial
#1
Lindsey A MacFarlane, Eunjung Kim, Nancy R Cook, I-Min Lee, Maura D Iversen, Jeffrey N Katz, Karen H Costenbader
OBJECTIVE: Racial variation in total knee replacement (TKR) utilization in the United States has been reported in administrative database studies. We investigated racial variation in TKR procedures in a diverse cohort with severe knee pain followed in an ongoing clinical trial. METHODS: VITAL (VITamin D and OmegA-3 TriaL) is a nationwide, randomized controlled trial of 25,874 adults, 20% of whom are black. We identified a subgroup highly likely to have knee osteoarthritis based on severity of knee pain, physician-diagnosed knee osteoarthritis, and inability to walk 2 to 3 blocks without pain...
December 12, 2017: Journal of Clinical Rheumatology: Practical Reports on Rheumatic & Musculoskeletal Diseases
https://www.readbyqxmd.com/read/29232067/clinical-factors-are-associated-with-vitamin-d-levels-in-ibd-patients-a-retrospective-analysis
#2
Holger Schäffler, Martin Schmidt, Astrid Huth, Johannes Reiner, Änne Glass, Georg Lamprecht
INTRODUCTION: There is growing evidence for the hypothesis, that vitamin D deficiency plays a role in the development and the disease course of IBD. However, the correlation of vitamin D deficiency to clinical parameters in IBD is still not completely understood. MATERIAL AND METHODS: A retrospective study of IBD patients was performed. Vitamin D values were analyzed and correlated to clinical parameters like medical therapy, anatomical situation, localization of the disease and disease activity...
December 12, 2017: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29231753/rates-of-insufficiency-and-deficiency-of-vitamin-d-levels-in-elite-professional-male-and-female-skiers-a-chronobiologic-approach
#3
Jacopo Antonino Vitale, Giovanni Lombardi, Luca Cavaleri, Rosa Graziani, Herbert Schoenhuber, Antonio La Torre, Giuseppe Banfi
Vitamin D is essential for the maintenance and promotion of musculoskeletal health, for the functioning of the immune, cardiovascular and reproductive systems, and its main action is to keep calcium and phosphate plasmatic physiological concentrations at intestinal, renal and bony level. Vitamin D affects several parameters related to physical performance too and a particularly high percentage of vitamin D insufficiency and deficiency in professional athletes has been observed. Several variables are able to impair the synthesis of 25(OH)D in athletes, specifically both genetic and environmental factors, but the most probable explanation for the deficient/insufficient vitamin D levels is the insufficient ultraviolet B light (UVB) exposure during winter...
December 12, 2017: Chronobiology International
https://www.readbyqxmd.com/read/29230954/association-between-vitamin-d-receptor-polymorphisms-and-systemic-lupus-erythematosus-in-an-indian-cohort
#4
Harishankar Mahto, Rina Tripathy, Bidyut K Das, Aditya K Panda
AIM: Systemic lupus erythematosus (SLE) is an autoimmune disorder with various clinical manifestations. Susceptibility to development of SLE has been linked to several factors, such as genetic, environmental and hormonal. Vitamin D appears to have a regulatory role on disease manifestation and activity. Vitamin D exerts its effect through vitamin D receptors (VDR). Several studies have demonstrated an association between VDR polymorphisms and susceptibility to SLE in different populations, although the results are still inconclusive...
December 12, 2017: International Journal of Rheumatic Diseases
https://www.readbyqxmd.com/read/29230685/calcitriol-reverses-the-down-regulation-pattern-of-tuberous-sclerosis-complex-genes-in-an-in-vitro-calcification-model
#5
Eraldo Fonseca Dos Santos Junior, Roberta Rodrigues de Lemos Gitirana, Darlene Paiva Bezerra, João Ricardo Mendes de Oliveira
Tuberous sclerosis complex (TSC) is a neurocutaneous syndrome with autosomal dominant inheritance, and most of the cases are related to loss of function of the TSC1 and TSC2 genes. TSC may occur with a wide range of clinical findings and skin, kidney, brain, and heart are the most commonly affected organs. Brain calcifications in TSC are also described and reported as diffuse and without pattern of symmetry or bilaterality. Recently, a new discovery opened the possibility of using vitamin D (VitD) for treating cerebral calcifications...
December 11, 2017: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/29230557/seasonal-variation-of-serum-vitamin-d-levels-in-romania
#6
Dan Alexandru Niculescu, Cristina Ana Maria Capatina, Roxana Dusceac, Andra Caragheorgheopol, Adina Ghemigian, Catalina Poiana
We measured serum vitamin D in 8024 Romanian subjects and found a marked seasonal variation with highest levels in September and lowest levels in March. The seasonal variation (early autumn vs. early spring) persisted in all age and sex groups. The prevalence of vitamin D deficiency was very high. PURPOSE: Romania is located in Eastern Europe, roughly between 44°N and 48°N latitude. Seasonal variation of serum vitamin D in Romanian subjects is unknown. We assessed the seasonal variation of 25-hydroxy vitamin D [25(OH)D] in Romanian population...
December 11, 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/29230534/the-burden-of-comorbidity-and-complexity-in-sarcoidosis-impact-of-associated-chronic-diseases
#7
Pilar Brito-Zerón, Nihan Acar-Denizli, Antoni Sisó-Almirall, Xavier Bosch, Fernanda Hernández, Sergi Vilanova, Mireia Villalta, Belchin Kostov, Marina Paradela, Marcelo Sanchez, José Ramírez, Africa Muxí, Antonio Berruezo, Celeste Galceran-Chaves, Antoni Xaubet, Carles Agustí, Jacobo Sellarés, Manuel Ramos-Casals
PURPOSE: To evaluate comorbidity, complexity and poor outcomes in patients with sarcoidosis and to compare those scores with a control group. METHODS: 218 consecutive patients were diagnosed with sarcoidosis according to the ATS/ERS/WASOG criteria; extrathoracic involvement was evaluated using the 2014 WASOG organ assessment instrument. Sarcoidosis patients were compared with an age- and gender-matched control group of primary care outpatients without sarcoidosis...
December 11, 2017: Lung
https://www.readbyqxmd.com/read/29230421/association-of-vitamin-d-deficiency-and-degree-of-coronary-artery-disease-in-cardiac-patients-with-type-2-diabetes
#8
Ewelina A Dziedzic, Jakub S Gąsior, Mariusz Pawłowski, Marek Dąbrowski
Several modifiable factors may influence cardiac function in diabetic patients. The aim of the study was to evaluate the influence of vitamin D level on the stage of coronary atherosclerosis in cardiac patients diagnosed with type 2 diabetes. The study was performed in 337 consecutive patients undergoing coronarography. The stage of atherosclerosis was evaluated using Coronary Artery Surgery Study Score. The plasma 25(OH)D concentration was determined by an electrochemiluminescence method. Patients without significant lesions in coronary arteries presented the highest 25(OH)D level, significantly higher than patients with one-, two-, and three-vessel coronary artery disease (CAD) (p < 0...
2017: Journal of Diabetes Research
https://www.readbyqxmd.com/read/29230333/celiac-disease-in-patients-with-cystic-fibrosis-related-bone-disease
#9
Melissa S Putman, Alexandra Haagensen, Isabel Neuringer, Leonard Sicilian
Both cystic fibrosis (CF) and celiac disease can cause low bone mineral density (BMD) and fractures. Celiac disease may occur at a higher frequency in patients with CF than the general population, and symptoms of these conditions may overlap. We report on two patients presenting with CF-related bone disease in the past year who were subsequently found to have concurrent celiac disease. Because adherence to a gluten-free diet may improve BMD in patients with celiac disease, this could have important implications for treatment...
2017: Case Reports in Endocrinology
https://www.readbyqxmd.com/read/29229962/reference-and-influential-factors-of-serum-bone-markers-in-chinese-adolescents
#10
Xinyi Wang, Lichao Liu, Ping Li, Jie Ma, Ranhua Jiang, Renee Wang, Ling Li, Haixia Guan
This study aimed to establish reference ranges of bone markers in Chinese adolescents between the age of 12 and 16, and to search these markers' characteristics and influential factors. Personal information and fasting blood samples were collected from 174 healthy adolescents in Northeast China. Serum levels of PINP, ALP, β-CrossLaps, calcium, phosphate, PTH, 25(OH)D and TSH were measured. Reference ranges were established for PINP [(85.55-2,028.75)ng/ml], ALP [(53.88-463.63)U/L], β-CrossLaps [(0.16-1.19)ng/ml], calcium [(2...
December 11, 2017: Scientific Reports
https://www.readbyqxmd.com/read/29229333/simultaneous-determination-of-12-vitamin-d-compounds-in-human-serum-using-online-sample-preparation-and-liquid-chromatography-tandem-mass-spectrometry
#11
Nur Sofiah Abu Kassim, Paul Nicholas Shaw, Amitha K Hewavitharana
The development and validation of a method to simultaneously quantify 12 vitamin D compounds in human serum by LC-MS/MS is described. The main challenge was that of extracting and chromatographing vitamin D compounds with a range of polarities, both lipophilic and hydrophilic, in a single analytical procedure. The extractions of all 12 vitamin D compounds were achieved by an optimised protein precipitation method using acetonitrile as the precipitant, and the separation was accomplished by using a pentafluorophenyl (PFP) column...
December 6, 2017: Journal of Chromatography. A
https://www.readbyqxmd.com/read/29229305/expression-and-shedding-of-cd44-in-the-endometrium-of-women-with-endometriosis-and-modulating-effects-of-vitamin-d-a-randomized-exploratory-trial
#12
Azar Pazhohan, Fardin Amidi, Firoozeh Akbari-Asbagh, Ensiyeh Seyedrezazadeh, Younes Aftabi, Jalal Abdolalizadeh, Mahshad Khodarahmian, Neda Khanlarkhani, Aligholi Sobhani
Endometriosis is an estrogen-dependent disease. The impaired estrogen and progesterone signaling over-activates the Wnt/β-catenin pathway in endometriosis patients, which can explain the increased invasion potency of endometrial cells derived from the endometrium of women with endometriosis. The regulatory effects of vitamin D on Wnt/β-catenin pathway were demonstrated by previous studies. According to gene prioritization method, among Wnt target genes, CD44 was in high ranking in relation to endometriosis...
December 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/29228951/hypovitaminosis-c-and-vitamin-c-deficiency-in-critically-ill-patients-despite-recommended-enteral-and-parenteral-intakes
#13
Anitra C Carr, Patrice C Rosengrave, Simone Bayer, Steve Chambers, Jan Mehrtens, Geoff M Shaw
BACKGROUND: Vitamin C is an essential water-soluble nutrient which cannot be synthesised or stored by humans. It is a potent antioxidant with anti-inflammatory and immune-supportive roles. Previous research has indicated that vitamin C levels are depleted in critically ill patients. In this study we have assessed plasma vitamin C concentrations in critically ill patients relative to infection status (septic shock or non-septic) and level of inflammation (C-reactive protein concentrations)...
December 11, 2017: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29228948/influence-of-pharmacological-education-on-perceptions-attitudes-and-use-of-dietary-supplements-by-medical-students
#14
Z Stanojević-Ristić, S Stević, J Rašić, D Valjarević, M Dejanović, A Valjarević
BACKGROUND: The ready availability and use of dietary supplements (DS) by the public means that healthcare professionals require education in this area. In the Republic of Serbia, education related to use of DS is included in undergraduate medical training and it is therefore important to assess the effectiveness of this education. The aim of our survey was to investigate the influence of pharmacological education on the use, attitudes and perceptions of risks associated with DS among medical students...
December 11, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/29228157/gut-epithelial-vitamin-d-receptor-regulates-microbiota-dependent-mucosal-inflammation-by-suppressing-intestinal-epithelial-cell-apoptosis
#15
Lei He, Tianjing Liu, Yongyan Shi, Feng Tian, Huiyuan Hu, Dilip K Deb, Yinyin Chen, Marc Bissonnette, Yan Chun Li
Recent studies show that colonic vitamin D receptor (VDR) signaling protects the mucosal epithelial barrier and suppresses colonic inflammation, but the underlying molecular mechanism remains to be fully understood. To investigate the implication of colonic VDR down-regulation seen in patients with inflammatory bowel disease, we assessed the effect of gut epithelial VDR deletion on colonic inflammatory responses in an experimental colitis model. In 2,4,6-trinitrobenzenesulfonic acid (TNBS)-induced colitis model, mice carrying VDR deletion in gut epithelial cells (VDRf/f;Villin-Cre or VDRΔIEC) or in colonic epithelial cells (VDRf/f;CDX2-Cre or VDRΔCEC) developed more severe clinical colitis than VDRf/f control mice, characterized by more robust TH1 and TH17 responses, with greater increases in mucosal IFN-γ+, IL-17+ and IFN-γ+IL-17+ T cells...
December 7, 2017: Endocrinology
https://www.readbyqxmd.com/read/29228152/effectiveness-of-nutritional-interventions-addressed-to-elderly-persons-umbrella-systematic-review-with-meta-analysis
#16
Andrea Poscia, Sonja Milovanovic, Daniele Ignazio La Milia, Mariusz Duplaga, Marcin Grysztar, Francesco Landi, Umberto Moscato, Nicola Magnavita, Agnese Collamati, Walter Ricciardi
Background: The number of Europeans aged over 65 will double between 2010 and 2060, reaching 30% of the European population. Nutrition is emerging as a key element of healthy life since both obesity and malnutrition are established risk factors for morbidity and disability. The aim of this umbrella review (UR) is to summarize the findings of all current systematic reviews (SRs) and meta-analyzes (MAs) on the effectiveness of nutritional intervention designed to promote healthy aging in older individuals...
December 8, 2017: European Journal of Public Health
https://www.readbyqxmd.com/read/29227867/associations-between-vitamin-d-status-and-atherosclerosis-among-inuit-in-greenland
#17
Camilla U Gjødesen, Marit E Jørgensen, Peter Bjerregaard, Inger K Dahl-Petersen, Christina V L Larsen, Martin Noël, Mads Melbye, Arieh S Cohen, Marika Lundqvist, David M Hougaard, Jørn W Helge, Nina O Nielsen
BACKGROUND AND AIMS: Low levels of vitamin D are suspected to be a risk factor for cardiovascular disease and atherosclerosis. The aim of this study was to assess the prevalence of subclinical atherosclerosis among Inuit in Greenland, and to evaluate the association with vitamin D status. We hypothesized that low vitamin D status could be associated with higher carotid intima-media thickness (IMT) as a marker of atherosclerosis. METHODS: 756 adults from the Inuit Health in Transition (IHIT) study carried out in Greenland in the period 2005-2010 were included...
December 1, 2017: Atherosclerosis
https://www.readbyqxmd.com/read/29227833/vitamin-a-deficiency-in-mice-alters-host-and-gut-microbial-metabolism-leading-to-altered-energy-homeostasis
#18
Yuan Tian, Robert G Nichols, Jingwei Cai, Andrew D Patterson, Margherita T Cantorna
Vitamin A deficiency (A-) is a worldwide public health problem. To better understand how vitamin A status influences gut microbiota and host metabolism, we systematically analyzed urine, cecum, serum and liver samples from vitamin A sufficient (A+) and deficient (A-) mice using 1H NMR-based metabolomics, quantitative (q)PCR and 16S rRNA gene sequencing coupled with multivariate data analysis. The microbiota in the cecum of A- mice showed compositional as well as functional shifts compared to the microbiota from A+ mice...
November 5, 2017: Journal of Nutritional Biochemistry
https://www.readbyqxmd.com/read/29227024/blood-biomarkers-as-predictors-of-long-term-mortality-in-copd
#19
Angelico Mendy, Erick Forno, Theophile Niyonsenga, Janvier Gasana
BACKGROUND: Blood biomarkers are easily accessible and might reflect chronic obstructive pulmonary disease (COPD) activity. AIM: To determine whether a panel of blood biomarkers (C-reactive protein [CRP], neutrophils, eosinophils, albumin and vitamin D) could predict mortality in COPD. METHODS: we analyzed data from 431 COPD participants to the 2007-2010 National Health and Nutrition Examination Surveys who were followed for a median time of 36 months...
December 11, 2017: Clinical Respiratory Journal
https://www.readbyqxmd.com/read/29226809/vitamin-d-supplementation-in-chronic-schizophrenia-patients-treated-with-clozapine-a-randomized-double-blind-placebo-controlled-clinical-trial
#20
Amir Krivoy, Roy Onn, Yael Vilner, Eldar Hochman, Shira Weizman, Amir Paz, Shmuel Hess, Roi Sagy, Shiri Kimhi-Nesher, Ehud Kalter, Tal Friedman, Zvi Friedman, Gil Bormant, Sharon Trommer, Avi Valevski, Abraham Weizman
BACKGROUND: While accumulating evidence suggests that vitamin D deficiency may be involved in the risk to develop schizophrenia and its outcome, there are no studies on vitamin D supplementation in this context. We sought to assess the effect of vitamin D supplementation on psychiatric, cognitive and metabolic parameters in chronic clozapine-treated schizophrenia patients. METHODS: This eight-week, randomized, double-blind, placebo-controlled clinical trial, recruited schizophrenia patients who had been maintained on clozapine treatment for at least 18weeks and had low levels of vitamin D (<75nmol/l) and total PANSS scores >70 (to ascertain the presence of residual symptoms)...
December 2, 2017: EBioMedicine
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