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Vitamin B 1

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https://www.readbyqxmd.com/read/28645473/efficacy-and-safety-of-rivaroxaban-versus-warfarin-in-patients-taking-nondihydropyridine-calcium-channel-blockers-for-atrial-fibrillation-from-the-rocket-af-trial
#1
Jeffrey B Washam, Anne S Hellkamp, Yuliya Lokhnygina, Jonathan P Piccini, Scott D Berkowitz, Christopher C Nessel, Richard C Becker, Günter Breithardt, Keith A A Fox, Jonathan L Halperin, Graeme J Hankey, Kenneth W Mahaffey, Daniel E Singer, Manesh R Patel
Non-dihydropyridine calcium channel blockers (non-DHP CCBs) possess combined P-glycoprotein and moderate CYP3A4 inhibition, which may lead to increased exposure of medications that are substrates for these metabolic pathways, such as rivaroxaban. We evaluated the use and outcomes of non-DHP CCBs in patients with atrial fibrillation (AF) in Rivaroxaban Once Daily Oral Direct Factor Xa Inhibition Compared with Vitamin K Antagonism for Prevention of Stroke and Embolism Trial in Atrial Fibrillation (ROCKET AF)...
May 29, 2017: American Journal of Cardiology
https://www.readbyqxmd.com/read/28638891/effect-of-astragaloside-on-vitamin-d-receptor-expression-after-endothelin-1-induced-cardiomyocyte-injury
#2
Chen Yunzhi, Chen Jiaxu, Gao Jie, Chai Yihui, Li Wen, Qin Zhong
BACKGROUND: Astragaloside, which is one of the main components of Astragalus membranaceus, has been widely used in the treatment of congestive heart failure in China, and it can protect cardiomyocytes. Its mechanism of action remains unclear. Therefore, the present study was carried out to investigate the influence of astragaloside on rat cardiomyocytes stimulated with endothelin-1 (ET-1), and explored the underlying mechanism. MATERIALS AND METHODS: ET-1 was used to stimulate primary rat cardiomyocytes and establish a cardiomyocyte hypertrophy model...
2017: African Journal of Traditional, Complementary, and Alternative Medicines: AJTCAM
https://www.readbyqxmd.com/read/28636252/influence-of-analyzed-lubricant-volumes-on-the-amount-and-characteristics-of-generated-wear-particles-from-three-different-types-of-polyethylene-liner-materials
#3
Jana Markhoff, Carmen Zietz, Christian Fabry, Gerhard Fulda, Rainer Bader
The articulating components of artificial joints consist mainly of metals, ceramics, or polymers. Resulting abrasive wear particles can promote osteolysis and aseptic loosening of the endo-prosthetic implants. Ultra-high-molecular-weight-polyethylene is the material used most for bearing couples in total hip replacement. In the present study, three types of polyethylene (PE) liners varying in material composition, i.e., (1) conventional PE (C-PE), (2) sequentially cross-linked PE (SX-PE), (3) cross-linked PE blended with vitamin E (EX-PE) articulating with two types of femoral heads were used...
June 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28636168/improved-hemodialysis-with-hemocompatible-polyethersulfone-hollow-fiber-membranes-in-vitro-performance
#4
Surendra Kumar Verma, Akshay Modi, Atul Kumar Singh, Rohit Teotia, Jayesh Bellare
We show that addition of nanozeolite (NZ) and vitamin E D-α-Tocopherol polyethylene glycol succinate (TPGS or T) considerably improves the performance of polyethersulfone (PES or P) hollow fiber membrane (HFM) for hemodialysis. Nanocomposite HFMs were manufactured using PES as a polymer, TPGS as an additive and NZ as a filler to give a composite membrane called PT-NZ. HFMs were spun by dry-wet spinning principle based on liquid-liquid phase separation. TPGS and NZ were successfully incorporated in HFMs, as confirmed by EDX elemental mapping...
June 21, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/28635642/lack-of-association-between-serum-vitamin-b%C3%A2-vitamin-b12-and-vitamin-d-levels-with-different-types-of-glaucoma-a-systematic-review-and-meta-analysis
#5
Shengjie Li, Danhui Li, Mingxi Shao, Wenjun Cao, Xinghuai Sun
Although vitamins play a major role in health, and their deficiency may be linked to symptoms of optic-nerve dysfunction, the association between serum vitamin levels and glaucoma in humans remains controversial. In this study, articles in the PubMed, Web of Science, and EMBASE databases were searched up to 25March 2017. Nine studies on primary open-angle glaucoma (POAG), four studies on normal tension glaucoma (NTG), and six studies on exfoliative glaucoma (EXG) were retrieved. The combined results showed no differences in the levels of serum vitamin B₆ between POAG (p = 0...
June 21, 2017: Nutrients
https://www.readbyqxmd.com/read/28629584/association-of-vitamin-d-intake-and-serum-levels-with-fertility-results-from-the-lifestyle-and-fertility-study
#6
June L Fung, Terryl J Hartman, Rosemary L Schleicher, Marlene B Goldman
OBJECTIVE: To evaluate the role of vitamin D intake and serum levels on conception of clinical pregnancy and live birth. DESIGN: Prospective cohort study. SETTING: Academic medical centers. PATIENT(S): Healthy, nulliparous women, age 18-39 years, and their male partners. INTERVENTION(S): None. MAIN OUTCOME MEASURE(S): Clinical pregnancy and live birth were compared between those who did or did not meet the vitamin D estimated average requirement (EAR) intake (10 μg/d) and with serum 25-hydroxyvitamin D (25(OH)D) considered at risk for inadequacy or deficiency (<50 nmol/L) or sufficient (≥50 nmol/L)...
June 16, 2017: Fertility and Sterility
https://www.readbyqxmd.com/read/28627057/vitamin-d-metabolism-in-growing-pigs-influence-of-uvb-irradiation-and-dietary-vitamin-d-supply-on-calcium-homeostasis-its-regulation-and-bone-metabolism
#7
E Kolp, M R Wilkens, W Pendl, B Eichenberger, A Liesegang
The aim of this study was to prove whether pigs are able to synthesize vitamin D (vitD) in the skin and to investigate the influence of ultraviolet irradiation (UVB) on vitD status and calcium (Ca) homeostasis of growing pigs. Thirty-two 11-week-old pigs were kept without access to sunlight and divided into four groups receiving the following treatment in a 2 × 2 factorial design: (i) UVB irradiation or not and (ii) vitD in feed or not. Blood, urine and faeces were sampled every third week. In serum, vitD metabolites, Ca, phosphorus (P), magnesium (Mg) and bone markers were analysed...
June 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/28622535/vitamin-d-mediates-the-relationship-between-placental-cathelicidin-and-group-b-streptococcus-colonization-during-pregnancy
#8
Christine C Akoh, Eva K Pressman, Corrie M Whisner, Carrie Thomas, Chang Cao, Tera Kent, Elizabeth Cooper, Kimberly O O'Brien
Vitamin D is thought to modulate innate immune responses, and recent studies have highlighted the autocrine and paracrine functions of vitamin D in the placenta. Our objective was to determine the relationship between maternal vitamin D status and placental antimicrobial peptide (AMP) expression in a group of racially and ethnically diverse pregnant adolescents. In this study, 158 pregnant adolescents were recruited from the Rochester Adolescent Maternity Program (RAMP) in Rochester, NY. Maternal serum concentrations of the vitamin D biomarkers, 25-hydroxyvitamin D (25(OH)D) and 1,25-dihydroxyvitamin D (1,25(OH)2D), were measured at mid-gestation (∼26 weeks) and at delivery...
June 6, 2017: Journal of Reproductive Immunology
https://www.readbyqxmd.com/read/28620062/urine-biomarkers-to-predict-response-to-lupus-nephritis-therapy-in-children-and-young-adults
#9
Hermine I Brunner, Michael R Bennett, Gaurav Gulati, Khalid Abulaban, Marisa S Klein-Gitelman, Stacy P Ardoin, Lori B Tucker, Kelly A Rouster-Stevens, David Witte, Jun Ying, Prasad Devarajan
OBJECTIVE: To delineate urine biomarkers that forecast response to therapy of lupus nephritis (LN). METHODS: Starting from the time of kidney biopsy, patients with childhood-onset systemic lupus erythematosus who were diagnosed with LN were studied serially. Levels of 15 biomarkers were measured in random spot urine samples, including adiponectin, α-1-acid glycoprotein (AGP), ceruloplasmin, hemopexin, hepcidin, kidney injury molecule 1, monocyte chemotactic protein-1, lipocalin-like prostaglandin D synthase (LPGDS), transforming growth factor-β (TGF-β), transferrin, and vitamin D binding protein (VDBP)...
June 15, 2017: Journal of Rheumatology
https://www.readbyqxmd.com/read/28612906/the-influence-of-plasma-25-oh-vitamin-d-levels-in-acute-st-elevation-myocardial-infarction
#10
Ömer Şen, Mustafa Topuz, Armağan Acele, Oğuz Akkuş, Ahmet Oytun Baykan, Mevlüt Koç
BACKGROUND: The preventive role of acute occurring of collateral circulation (AOCC) to infarct related artery (IRA) in patients presenting with acute ST-segment elevation myocardial infarction (STEMI) is well known. Therefore, we aimed to investigate whether there is an association between admission plasma 25-(OH) vitamin D (25(OH)D3) levels and grade of collateralization in patients with STEMI. METHODS: We prospectively included 369 STEMI patients within the first 12 h of symptoms onset...
June 14, 2017: Cardiology Journal
https://www.readbyqxmd.com/read/28607807/immunohistochemical-evaluation-of-vitamin-d-receptor-vdr-expression-in-cutaneous-melanoma-tissues-and-four-vdr-gene-polymorphisms
#11
Francesco La Marra, Giuseppe Stinco, Cinzia Buligan, Giovanni Chiriacò, Diego Serraino, Carla Di Loreto, Sabina Cauci
OBJECTIVE: : Vitamin D receptor (VDR) mediates vitamin D activity. We examined whether VDR expression in excised melanoma tissues is associated with VDR gene (VDR) polymorphisms. METHODS: : We evaluated VDR protein expression (by monoclonal antibody immunostaining), melanoma characteristics, and carriage of VDR-FokI-rs2228570 (C>T),VDR-BsmI-rs1544410 (G>A),VDR-ApaI-rs7975232 (T>G), andVDR-TaqI-rs731236 (T>C) polymorphisms (by restriction fragment length polymorphism)...
May 2017: Cancer Biology & Medicine
https://www.readbyqxmd.com/read/28606218/dietary-supplement-use-in-the-older-population-of-iceland-and-association-with-mortality
#12
Birta Ólafsdóttir, Ingibjörg Gunnarsdóttir, Hjálmfríður Nikulásdóttir, Guðný Eiríksdóttir, Tamara B Harris, Lenore J Launer, Vilmundur Guðnason, Thórhallur I Halldórsson, Kristjana Einarsdóttir
Dietary supplements are often used by the elderly to improve their nutritional status. However, intake above the recommended dietary levels may be detrimental, and uncertainty exists on the potential health benefits of supplementation in this population. The aim of this study was to describe supplement use among Icelandic older adults and to assess its association with total mortality and CVD-related mortality. This study used data from the Age Gene/Environment Susceptibility-Reykjavik study, which recruited 5764 participants aged 66-98 years in 2002-2006...
June 13, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28605340/vitamin-d2-stability-during-the-refrigerated-storage-of-ultraviolet-b-treated-cultivated-culinary-medicinal-mushrooms
#13
Aneta Slawinska, Emilia Fornal, Wojciech Radzki, Ewa Jablonska-Rys, Ewa Parfieniuk
The effects of ultraviolet B (UVB) irradiation on the synthesis of vitamin D2 and its stability during refrigerated storage was determined in fresh cultivated culinary-medicinal mushrooms (Agaricus bisporus, Pleurotus ostreatus, and Lentinus edodes) after harvest. The irradiated mushrooms were stored at 4°C for up to 10 days. The concentrations of vitamin D2 and ergosterol were determined using ultrahigh-performance liquid chromatography/tandem mass spectrometry. The cultivated mushrooms not treated with UVB were devoid of vitamin D2...
2017: International Journal of Medicinal Mushrooms
https://www.readbyqxmd.com/read/28602960/the-impact-of-vdr-expression-and-regulation-in-vivo
#14
Seong Min Lee, Mark B Meyer, Nancy A Benkusky, Charles A O'Brien, J Wesley Pike
The vitamin D receptor (VDR) mediates the pleiotropic biological actions of 1,25-dihydroxyvitamin D3 (1,25(OH)2D3). These actions include orchestration of mineral homeostasis which is coordinated by the kidney, intestine, bone and parathyroid gland wherein the VDR transcriptionally regulates expression of the genes involved in this complex process. Mutations in human VDR (hVDR) cause hereditary vitamin D resistant rickets, a genetic syndrome characterized by hypocalcemia, hyperparathyroidism and rickets resulting from dysregulation of mineral homeostasis...
June 8, 2017: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/28602467/intake-of-b-vitamins-and-impairment-in-physical-function-in-older-adults
#15
Ellen A Struijk, Alberto Lana, Pilar Guallar-Castillón, Fernando Rodríguez-Artalejo, Esther Lopez-Garcia
BACKGROUND: The effect of vitamin B intake on physical function is not well known. OBJECTIVE: To examine the prospective association of the intake of vitamins B6, B12 and folate with physical function impairment in older adults. METHODS: We performed a prospective cohort study with 1630 participants from the Seniors-ENRICA study, a cohort of community-dwelling adults aged ≥60 years who were free of physical function impairment at baseline...
May 23, 2017: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/28601865/neonatal-vitamin-d-levels-in-relation-to-risk-of-overweight-at-7-years-in-the-danish-d-tect-case-cohort-study
#16
Camilla B Jensen, Marika Lundqvist, Thorkild I A Sørensen, Berit L Heitmann
BACKGROUND: Vitamin D level in pregnancy may be associated with risk of overweight in the offspring later in life. METHODS: In a case-cohort study based on Danish biobanks and registers we examined the association between 25-hydroxy-vitamin D (25(OH)D) level at birth and overweight at 7 years. Cases of overweight (n = 871) were randomly selected among 7-year-old children from the Copenhagen School Health Records Register (CSHRR) with a BMI above the 90th percentile...
June 10, 2017: Obesity Facts
https://www.readbyqxmd.com/read/28601445/production-and-nitrogen-utilization-in-lactating-dairy-cows-fed-ground-field-peas-with-or-without-ruminally-protected-lysine-and-methionine
#17
A B D Pereira, N L Whitehouse, K M Aragona, C S Schwab, S F Reis, A F Brito
Previous research has shown that cows fed ≥24% of the diet dry matter (DM) as field peas decreased milk yield as well as concentration and yield of milk protein, possibly due to reduced DM intake and limited supply of Lys and Met. Twelve multiparous and 4 primiparous lactating Holstein cows were randomly assigned to 1 of 4 diets in a replicated 4 × 4 Latin square design. The diets contained (DM basis) 34.8% corn silage, 15.2% grass-legume silage, 5.9% roasted soybean, 2.4% mineral-vitamin premix, 2.0% alfalfa pellets, and either (1) 36% ground corn, 2...
June 7, 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28601123/physical-function-and-25-hydroxyvitamin-d-in-dialysis-patients-lessons-learned-from-the-slovenian-diagib-study
#18
Maja Bučar Pajek, Ivan Čuk, Gregor Mlinšek, Joško Osredkar, Jernej Pajek
AIMS: Vitamin D stores in dialysis patients may be associated with their muscle function and physical performance. We analyzed associations of 25-hydroxyvitamin D levels with functional test results in prevalent hemodialysis patients and healthy controls. METHODS: Study sample included 54 dialysis patients and 81 healthy controls who performed a 6-minute walk test, sit-to-stand test, handgrip strength measurement, and self-rated habitual adjusted activity score with Human Activity Profile questionnaire...
June 9, 2017: Clinical Nephrology
https://www.readbyqxmd.com/read/28594127/no-clear-support-for-a-role-for-vitamin-d-in-parkinson-s-disease-a-mendelian-randomization-study
#19
Susanna C Larsson, Andrew B Singleton, Mike A Nalls, J Brent Richards
BACKGROUND: Observational studies have found that relative to healthy controls, patients with Parkinson's disease have lower circulating concentrations of 25-hydroxyvitamin D, a clinical biomarker of vitamin D status. However, the causality of this association is uncertain. We undertook a Mendelian randomization study to investigate whether genetically decreased 25-hydroxyvitamin D concentrations are associated with PD to minimize confounding and prevent bias because of reverse causation...
June 8, 2017: Movement Disorders: Official Journal of the Movement Disorder Society
https://www.readbyqxmd.com/read/28592513/iron-zinc-folate-and-vitamin-b-12-status-increased-among-women-and-children-in-yaound%C3%A3-and-douala-cameroon-1-year-after-introducing-fortified-wheat-flour
#20
Reina Engle-Stone, Martin Nankap, Alex O Ndjebayi, Lindsay H Allen, Setareh Shahab-Ferdows, Daniela Hampel, David W Killilea, Marie-Madeleine Gimou, Lisa A Houghton, Avital Friedman, Ann Tarini, Rosemary A Stamm, Kenneth H Brown
Background: Few data are available on the effectiveness of large-scale food fortification programs.Objective: We assessed the impact of mandatory wheat flour fortification on micronutrient status in Yaoundé and Douala, Cameroon.Methods: We conducted representative surveys 2 y before and 1 y after the introduction of fortified wheat flour. In each survey, 10 households were selected within each of the same 30 clusters (n = ∼300 households). Indicators of inflammation, malaria, anemia, and micronutrient status [plasma ferritin, soluble transferrin receptor (sTfR), zinc, folate, and vitamin B-12] were assessed among women aged 15-49 y and children 12-59 mo of age...
June 7, 2017: Journal of Nutrition
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