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Vitamin B 12

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https://www.readbyqxmd.com/read/29222896/serum-vitamin-b-12-in-children-presenting-with-vasovagal-syncope
#1
Ayhan Pektas, Resit Koken, Halit Bugra Koca
BACKGROUND AND OBJECTIVES: The present study aims to determine the serum vitamin B-12 in children presenting with vasovagal syncope. METHODS AND STUDY DESIGN: This is a prospective review of 160 children presenting with vasovagal syncope. Subgroup analysis was done based on the results of head up tilt test. RESULTS: Head up tilt test gave positive results in 80 children and yielded negative results in the remaining 80 children. The tilt test positive children had significantly lower thyroid stimulating hormone concentrations (p=0...
2018: Asia Pacific Journal of Clinical Nutrition
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
#2
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/29204115/a-randomized-double-blind-study-assessing-changes-in-cognitive-function-in-indian-school-children-receiving-a-combination-of-bacopa-monnieri-and-micronutrient-supplementation-vs-placebo
#3
Tora Mitra-Ganguli, Soumik Kalita, Sakshi Bhushan, Con Stough, James Kean, Nan Wang, Vidhu Sethi, Anuradha Khadilkar
Several studies have indicated a chronic cognitive enhancing effect of Bacopa monnieri across different ages and cognitive impairment associated with vitamin and mineral deficiencies in children. Therefore, we investigated the effects of 4-month supplementation with a combination of B. monnieri extract and multiple micronutrients on cognitive functions in Indian school children aged 7-12 years. This was a randomized, double-blind, parallel design, single-center study in which 300 children were randomized to receive a beverage either fortified with B...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/29196501/vitamin-d-binding-protein-rs7041-genotype-alters-vitamin-d-metabolism-in-pregnant-women
#4
Ariel B Ganz, Heyjun Park, Olga V Malysheva, Marie A Caudill
Research has identified reduced circulating 25-hydroxyvitamin D [25(OH)D] in individuals with the rs7041 (c.1296T>G) T allele in the vitamin D binding protein gene (GC); however, the effects of the T allele on vitamin D biomarkers during pregnancy and lactation are unknown. Thus, we examined the metabolic effects of GC rs7041 on vitamin D biomarkers among third-trimester pregnant (n = 26), lactating (n = 28), and nonpregnant/nonlactating (n = 21) women consuming a single amount of vitamin D (511 IU/d) and related nutrients for 10-12 wk...
December 1, 2017: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29188889/vitamin-b12-intake-and-related-biomarkers-associations-in-a-dutch-elderly-population
#5
J P van Wijngaarden, R A M Dhonukshe-Rutten, E M Brouwer-Brolsma, A W Enneman, K M A Swart, S C van Dijk, P H In 't Veld, N M van Schoor, N van der Velde, R de Jonge, P Lips, A G Uitterlinden, L C P G M de Groot
BACKGROUND: Vitamin B12 status is measured by four plasma/ serum biomarkers: total vitamin B12 (total B12), holotranscobalamin (holoTC), methylmalonic acid (MMA) and homocysteine (tHcy). Associations of B12 intake with holoTC and tHcy and associations between all four biomarkers have not been extensively studied. A better insight in these associations may contribute to an improved differentiation between vitamin B12 deficiency and a normal vitamin B12 status. OBJECTIVE: This study investigates associations between vitamin B12 intake and biomarkers and associations between biomarkers...
2017: Journal of Nutrition, Health & Aging
https://www.readbyqxmd.com/read/29187783/the-effect-of-micronutrient-supplementation-on-active-tb-incidence-early-in-hiv-infection-in-botswana
#6
Adriana Campa, Marianna K Baum, Hermann Bussmann, Sabrina Sales Martinez, Mansour Farahani, Erik van Widenfelt, Sikhulile Moyo, Joseph Makhema, Max Essex, Richard Marlink
Background: Coinfection with active tuberculosis (TB) is one of the leading causes of death in people living with HIV (PLWH) in Africa. This investigation explores the role of micronutrient supplementation in preventing active TB in PLWH. Methods: A randomized trial of nutritional supplementation was conducted among antiretroviral- naïve (without previous antiretroviral treatment [ART]) HIV-infected people in Botswana between 2004 and 2009. The study had a factorial design with four arms: the selenium (Se) alone arm, the multivitamins (MVT) alone arm that contained vitamin B complex and vitamins C and E, the combined Se+MVT group and the placebo group...
2017: Nutrition and Dietary Supplements
https://www.readbyqxmd.com/read/29178263/characterizing-the-free-volume-of-ultrahigh-molecular-weight-polyethylene-to-predict-diffusion-coefficients-in-orthopedic-liners
#7
Kyle B Ludwig, Vaishnavi Chandrasekar, David M Saylor, Douglas W Van Citters, Steven D Reinitz, Christopher Forrey, Martin K McDermott, Samanthi Wickramasekara, Dustin W Janes
Liners used in orthopedic devices are often made from ultrahigh molecular weight polyethylene (UHMWPE). A general predictive capability for transport coefficients of small molecules in UHMWPE does not exist, making it difficult to assess properties associated with leaching or uptake of small molecules. To address this gap, we describe here how a form of the Vrentas-Duda free volume model can be used to predict upper-bound diffusion coefficients (D) of arbitrary molecules within UHMWPE on the basis of their size and shape...
November 27, 2017: Journal of Biomedical Materials Research. Part B, Applied Biomaterials
https://www.readbyqxmd.com/read/29176817/individual-and-community-factors-contributing-to-anemia-among-women-in-rural-baja-california-mexico
#8
Molly A Moor, Miguel A Fraga, Richard S Garfein, Hooman H Rashidi, John Alcaraz, Donna Kritz-Silverstein, John P Elder, Stephanie K Brodine
INTRODUCTION: Anemia is a public health concern among women in rural Baja California, Mexico. The purpose of this study was to identify the individual and community factors contributing to the disproportionately high prevalence of anemia among women in this region. METHODS: A cross-sectional study of 118 women (15-49 years) was performed in a rural colonia (small settlement) in Baja California, Mexico in 2012. Participants completed a survey comprised of demographic, socioeconomic, health, and dietary questions and provided a capillary blood sample...
2017: PloS One
https://www.readbyqxmd.com/read/29136005/a-17-molecule-set-as-a-predictor-of-complete-response-to-neoadjuvant-chemotherapy-with-docetaxel-cisplatin-and-5-fluorouracil-in-esophageal-cancer
#9
Hajime Fujishima, Shoichi Fumoto, Tomotaka Shibata, Kohei Nishiki, Yoshiyuki Tsukamoto, Tsuyoshi Etoh, Masatsugu Moriyama, Norio Shiraishi, Masafumi Inomata
BACKGROUND: Recently, neoadjuvant chemotherapy with docetaxel/cisplatin/5-fluorouracil (NAC-DCF) was identified as a novel strong regimen with a high rate of pathological complete response (pCR) in advanced esophageal cancer in Japan. Predicting pCR will contribute to the therapeutic strategy and the prevention of surgical invasion. However, a predictor of pCR after NAC-DCF has not yet been developed. The aim of this study was to identify a novel predictor of pCR in locally advanced esophageal cancer treated with NAC-DCF...
2017: PloS One
https://www.readbyqxmd.com/read/29134690/faecal-calcium-excretion-does-not-decrease-during-long-term-feeding-of-a-low-calcium-diet-in-adult-dogs
#10
S Schmitt, J Mack, E Kienzle, L G Alexander, P J Morris, A Colyer, B Dobenecker
According to a previous meta-analysis, adult dogs do not notably increase calcium absorption from the gastrointestinal tract when calcium intake is decreased. This results in a negative calcium balance even with a moderate calcium reduction. In this study we wanted to verify (i) whether a negative calcium balance occurs at a calcium intake equivalent to NRC (2006) (Nutrient requirements of dogs and cats, 2006, The National Academies Press, Washington, DC) minimal requirements, and if so (ii) whether the negative calcium balance will persist for up to 6 months on a low-calcium diet...
November 13, 2017: Journal of Animal Physiology and Animal Nutrition
https://www.readbyqxmd.com/read/29129471/higher-intake-of-fish-and-fat-is-associated-with-lower-plasma-s-adenosylhomocysteine-a-cross-sectional-study
#11
Mads V Lind, Lotte Lauritzen, Oluf Pedersen, Henrik Vestergaard, Ken D Stark, Torben Hansen, Alastair B Ross, Mette Kristensen
Several B-vitamins act as co-factors in one-carbon metabolism, a pathway that plays a central role in several chronic diseases. However, there is a lack of knowledge of how diet affects markers in one-carbon metabolism. The aim of this study was to explore dietary patterns and components associated with one-carbon metabolites. We hypothesized that intake of whole-grains and fish would be associated with lower Hcy, and higher SAM:SAH ratio due to their nutrient content. We assessed dietary information using a four-day dietary record in 118 men and women with features of the metabolic syndrome...
October 2, 2017: Nutrition Research
https://www.readbyqxmd.com/read/29126718/vitamin-d-and-antiphospholipid-syndrome-a-retrospective-cohort-study-and-meta-analysis
#12
REVIEW
Leyre Riancho-Zarrabeitia, Maite Cubería, Pedro Muñoz, Marcos López-Hoyos, Silvia García-Canale, Mayte García-Unzueta, José L Hernández, Víctor M Martínez-Taboada
OBJECTIVES: (a) To determine serum 25-OH vitamin D (vitD) levels in primary antiphospholipid syndrome (APS) and to compare them with patients with positive antiphospholipid serology who do not meet clinical criteria for APS, and with healthy controls. (b) To analyze the association of vitD levels with both the clinical manifestations and the immunological profile of patients with primary APS. (c) To perform a meta-analysis evaluating potential differences in serum vitD levels between APS and controls as well as the frequency of vitD deficiency in APS patients...
October 12, 2017: Seminars in Arthritis and Rheumatism
https://www.readbyqxmd.com/read/29125700/bioavailability-and-pharmacokinetics-of-trpv1-antagonist-mavatrep-jnj-39439335-tablet-and-capsule-formulations-in-healthy-men-two-open-label-crossover-single-dose-phase-1-studies
#13
Prasarn Manitpisitkul, Kevin Shalayda, Lucille Russell, Panna Sanga, Yinka Williams, Bhavna Solanki, Joseph Caruso, John A Moyer
To improve room temperature stability and oral bioavailability of mavatrep (JNJ-39439335, a transient receptor potential vanilloid subtype-1 antagonist), various formulations were initially developed and evaluated in 2 phase 1 open-label, randomized, 3-way crossover studies in healthy participants. Study 1 evaluated 2 new overencapsulated tablet formulations (formulations B and C) relative to an overencapsulated early tablet formulation (formulation A), using mavatrep HCl salt form. Because these tablets were still not room-temperature stable, in study 2: two free-base solid dispersion amorphous formulations (formulations D and E) were evaluated relative to the best encapsulated formulation from study 1 (formulation C) and also food effect...
November 10, 2017: Clinical Pharmacology in Drug Development
https://www.readbyqxmd.com/read/29125655/25-hydroxyvitamin-d-autoantigenic-and-total-antibody-concentrations-results-from-a-danish-case-control-study-of-newly-diagnosed-patients-with-childhood-type-1-diabetes-and-their-healthy-siblings
#14
Steffen Ullitz Thorsen, Christian B Pipper, Jesper Johannesen, Henrik Bindesbøl Mortensen, Flemming Pociot, Jannet Svensson
BACKGROUND: B cells have recently entered the stage as an important accessory player in type 1 diabetes (T1D) etiopathogenesis. Experimental studies suggest regulatory functions of vitamin D on B cells. However, only a few human studies, with considerable methodological limitations, have been conducted within this field. OBJECTIVE: Our objective was to investigate if higher 25-hydroxyvitamin D (25(OH)D) concentrations were inversely associated with β-cell autoantigens glutamic acid decarboxylase (isoform 65) (GADA) and insulinoma associated antigen-2A (IA-2A)...
November 10, 2017: Scandinavian Journal of Immunology
https://www.readbyqxmd.com/read/29124814/validation-of-an-updated-associative-transcriptomics-platform-for-the-polyploid-crop-species-brassica-napus-by-dissection-of-the-genetic-architecture-of-erucic-acid-and-tocopherol-isoform-variation-in-seeds
#15
Lenka Havlickova, Zhesi He, Lihong Wang, Swen Langer, Andrea L Harper, Harjeevan Kaur, Martin R Broadley, Vasilis Gegas, Ian Bancroft
An updated platform was developed to underpin association genetics studies in the polyploid crop species Brassica napus (oilseed rape). Based on 1.92 × 1012 bases of leaf mRNAseq data, functional genotypes, comprising 355 536 single-nucleotide polymorphism markers and transcript abundance were scored across a genetic diversity panel of 383 accessions using a transcriptome reference comprising 116 098 ordered coding DNA sequence (CDS) gene models. The use of the platform for Associative Transcriptomics was first tested by analysing the genetic architecture of variation in seed erucic acid content, as high-erucic rapeseed oil is highly valued for a variety of applications in industry...
November 10, 2017: Plant Journal: for Cell and Molecular Biology
https://www.readbyqxmd.com/read/29123343/multiple-nutritional-deficiencies-in-cerebral-palsy-compounding-physical-and-functional-impairments
#16
P G Hariprasad, K E Elizabeth, Mathew J Valamparampil, D Kalpana, T S Anish
Introduction: Cerebral palsy (CP) refers to a spectrum of disorders causing physical and intellectual morbidity. Macro and micro nutrient deficiencies often contribute to the subnormal physical and mental capabilities of them. Objectives: To assess the growth, nutritional status, physical and functional ability and quality of life in cerebral palsy children and to determine any relation with their gross motor and functional capabilities. Method: The study was conducted at a Tertiary Care Centre, with the participants in the age group 1-16 years...
October 2017: Indian Journal of Palliative Care
https://www.readbyqxmd.com/read/29119323/optimization-of-bacillus-subtilis-natto-growth-parameters-in-glycerol-based-medium-for-vitamin-k-menaquinone-7-production-in-biofilm-reactors
#17
Ehsan Mahdinia, Ali Demirci, Aydin Berenjian
Menaquinone-7 (MK-7) is the key form of vitamin K used as a dietary supplement and its production revolves around Bacillus subtilis natto. Current fermentation strategies, which suggest static fermentations without aeration and agitation, can be problematic for large scale MK-7 production due to biofilm formation. The use of biofilm reactors, therefore, is proposed in the present study, which could utilize both agitation and aeration without interrupting MK-7 secretion. In this study, biofilm reactors were constructed using the selected plastic composite support (PCS) and B...
November 8, 2017: Bioprocess and Biosystems Engineering
https://www.readbyqxmd.com/read/29114875/circulating-concentrations-of-vitamin-d-in-relation-to-pancreatic-cancer-risk-in-european-populations
#18
Fränzel J B van Duijnhoven, Mazda Jenab, Kristian Hveem, Peter D Siersema, Veronika Fedirko, Eric J Duell, Ellen Kampman, Anouk Halfweeg, Henk J van Kranen, Jody M W van den Ouweland, Elisabete Weiderpass, Neil Murphy, Arnulf Langhammer, Eivind Ness-Jensen, Anja Olsen, Anne Tjønneland, Kim Overvad, Claire Cadeau, Marina Kvaskoff, Marie-Christine Boutron-Ruault, Verena A Katzke, Tilman Kühn, Heiner Boeing, Antonia Trichopoulou, Anastasia Kotanidou, Maria Kritikou, Domenico Palli, Claudia Agnoli, Rosario Tumino, Salvatore Panico, Giuseppe Matullo, Petra Peeters, Magritt Brustad, Karina Standahl Olsen, Cristina Lasheras, Mireia Obón-Santacana, María-José Sánchez, Miren Dorronsoro, Maria-Dolores Chirlaque, Aurelio Barricarte, Jonas Manjer, Martin Almquist, Frida Renström, Weimin Ye, Nick Wareham, Kay-Tee Khaw, Kathryn E Bradbury, Heinz Freisling, Dagfinn Aune, Teresa Norat, Elio Riboli, H Bas Bueno-de-Mesquita
Evidence from in vivo, in vitro and ecological studies are suggestive of a protective effect of vitamin D against pancreatic cancer. However, this has not been confirmed by analytical epidemiological studies. We aimed to examine the association between pre-diagnostic circulating vitamin D concentrations and pancreatic cancer incidence in European populations. We conducted a pooled nested case-control study within the European Prospective Investigation into Cancer and Nutrition (EPIC) and the Nord-Trøndelag Health Study's second survey (HUNT2) cohorts...
November 7, 2017: International Journal of Cancer. Journal International du Cancer
https://www.readbyqxmd.com/read/29114830/comparisons-of-interventions-for-preventing-falls-in-older-adults-a-systematic-review-and-meta-analysis
#19
Andrea C Tricco, Sonia M Thomas, Areti Angeliki Veroniki, Jemila S Hamid, Elise Cogo, Lisa Strifler, Paul A Khan, Reid Robson, Kathryn M Sibley, Heather MacDonald, John J Riva, Kednapa Thavorn, Charlotte Wilson, Jayna Holroyd-Leduc, Gillian D Kerr, Fabio Feldman, Sumit R Majumdar, Susan B Jaglal, Wing Hui, Sharon E Straus
Importance: Falls result in substantial burden for patients and health care systems, and given the aging of the population worldwide, the incidence of falls continues to rise. Objective: To assess the potential effectiveness of interventions for preventing falls. Data Sources: MEDLINE, Embase, Cochrane Central Register of Controlled Trials, and Ageline databases from inception until April 2017. Reference lists of included studies were scanned...
November 7, 2017: JAMA: the Journal of the American Medical Association
https://www.readbyqxmd.com/read/29092879/eggs-early-in-complementary-feeding-increase-choline-pathway-biomarkers-and-dha-a-randomized-controlled-trial-in-ecuador
#20
Lora L Iannotti, Chessa K Lutter, William F Waters, Carlos Andres Gallegos Riofrío, Carla Malo, Gregory Reinhart, Ana Palacios, Celia Karp, Melissa Chapnick, Katherine Cox, Santiago Aguirre, Luis Narvaez, Fernando López, Rohini Sidhu, Pamela Kell, Xuntian Jiang, Hideji Fujiwara, Daniel S Ory, Rebecca Young, Christine P Stewart
Background: Choline status has been associated with stunting among young children. Findings from this study showed that an egg intervention improved linear growth by a length-for-age z score of 0.63.Objective: We aimed to test the efficacy of eggs introduced early in complementary feeding on plasma concentrations of biomarkers in choline pathways, vitamins B-12 and A, and essential fatty acids.Design: A randomized controlled trial, the Lulun ("egg" in Kichwa) Project, was conducted in a rural indigenous population of Ecuador...
December 2017: American Journal of Clinical Nutrition
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