keyword
MENU ▼
Read by QxMD icon Read
search

High B12

keyword
https://www.readbyqxmd.com/read/28213561/primary-care-requests-for-anaemia-chemistry-tests-in-spain-potential-iron-transferrin-and-folate-over-requesting
#1
Maria Salinas, Maite López-Garrigós, Emilio Flores, Carlos Leiva-Salinas
AIM: To study the regional variability of requests for anaemia chemistry tests in primary care in Spain and the associated economic costs of potential over-requesting. METHODS: Requests for anaemia tests were examined in a cross-sectional study. Clinical laboratories from different autonomous communities (AACCs) were invited to report on primary care anaemia chemistry tests requested during 2014. Demand for iron, ferritin, vitamin B12 and folate tests per 1000 inhabitants and the ratios of the folate/vitamin B12 and transferrin/ferritin requests were compared between AACCs...
February 17, 2017: Journal of Clinical Pathology
https://www.readbyqxmd.com/read/28202954/in-vitro-characterization-and-concerted-function-of-three-core-enzymes-of-a-glycyl-radical-enzyme-associated-bacterial-microcompartment
#2
Jan Zarzycki, Markus Sutter, Niña Socorro Cortina, Tobias J Erb, Cheryl A Kerfeld
Many bacteria encode proteinaceous bacterial microcompartments (BMCs) that encapsulate sequential enzymatic reactions of diverse metabolic pathways. Well-characterized BMCs include carboxysomes for CO2-fixation, and propanediol- and ethanolamine-utilizing microcompartments that contain B12-dependent enzymes. Genes required to form BMCs are typically organized in gene clusters, which promoted their distribution across phyla by horizontal gene transfer. Recently, BMCs associated with glycyl radical enzymes (GREs) were discovered; these are widespread and comprise at least three functionally distinct types...
February 16, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28197890/relationships-among-diet-physical-activity-and-dual-plane-dual-energy-x-ray-absorptiometry-bone-outcomes-in-pre-pubertalgirls
#3
Jie Ren, Lynn S Brann, Kay S Bruening, Tamara A Scerpella, Jodi N Dowthwaite
: In pre-pubertal girls, nutrient intakes and non-aquatic organized activity were evaluated as factors in vertebral body bone mass, structure, and strength. Activity, vitamin B12, and dietary fiber predicted bone outcomes most consistently. Exercise and vitamin B12 appear beneficial, whereas high fiber intake appears to be adverse for vertebral body development. PURPOSE: Childhood development sets the baseline for adult fracture risk. Most studies evaluate development using postero-anterior (PA) dual-energy X-ray absorptiometry (DXA) areal bone mineral density, bone mineral content, and bone mineral apparent density...
December 2017: Archives of Osteoporosis
https://www.readbyqxmd.com/read/28193074/cobalamin-concentrations-in-fetal-liver-show-gender-differences-a-result-from-using-a-high-pressure-liquid-chromatography-inductively-coupled-plasma-mass-spectrometry-as-an-ultratrace-cobalt-speciation-method
#4
Janine Bosle, Sven Goetz, Andrea Raab, Eva M Krupp, Kirk G Scheckel, Enzo Lombi, Andrew A Meharg, Paul A Fowler, Jörg Feldmann
Maternal diet and lifestyle choices may affect placental transfer of cobalamin (Cbl) to the fetus. Fetal liver concentration of Cbl reflects nutritional status with regards to vitamin B12, but at these low concentration current Cbl measurement methods lack robustness. An analytical method based on enzymatic extraction with subsequent reversed-phase-high-pressure liquid chromatography (RP-HPLC) separation and parallel ICPMS and electrospray ionization (ESI)-Orbitrap-MS to determine specifically Cbl species in liver samples of only 10-50 mg was developed using 14 pig livers...
December 20, 2016: Analytical Chemistry
https://www.readbyqxmd.com/read/28178790/all-dimensional-h2-co-potential-validation-with-fully-quantum-second-virial-coefficients
#5
Giovanni Garberoglio, Piotr Jankowski, Krzysztof Szalewicz, Allan H Harvey
We use a new high-accuracy all-dimensional potential to compute the cross second virial coefficient B12(T) between molecular hydrogen and carbon monoxide. The path-integral method is used to fully account for quantum effects. Values are calculated from 10 K to 2000 K and the uncertainty of the potential is propagated into uncertainties of B12. Our calculated B12(T) are in excellent agreement with most of the limited experimental data available, but cover a much wider range of temperatures and have lower uncertainties...
February 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28178022/the-impact-of-essential-fatty-acid-b-vitamins-vitamin-c-magnesium-and-zinc-supplementation-on-stress-levels-in-women-a-systematic-review
#6
Delia McCabe, Karolina Lisy, Craig Lockwood, Marc Colbeck
BACKGROUND: Women juggling multiple roles in our complex society are increasingly experiencing psychological stress. Dietary supplementation to manage stress is widespread despite limited supporting evidence. A systematic review of the available literature was undertaken to investigate the efficacy of specific dietary supplements in managing female stress and anxiety. OBJECTIVES: To identify the impact of essential fatty acids (EFAs), B vitamins, vitamin C, magnesium and/or zinc, consumed as dietary supplements to the daily diet, on female stress and anxiety levels...
February 2017: JBI Database of Systematic Reviews and Implementation Reports
https://www.readbyqxmd.com/read/28169875/vitamin-a-and-d-deficiencies-associated-with-incident-tuberculosis-in-hiv-infected-patients-initiating-antiretroviral-therapy-in-multinational-case-cohort-study
#7
Mark W Tenforde, Ashish Yadav, David W Dowdy, Nikhil Gupte, Rupak Shivakoti, Wei-Teng Yang, Noluthando Mwelase, Cecilia Kanyama, Sandy Pillay, Wadzanai Samaneka, Breno Santos, Selvamuthu Poongulali, Srikanth Tripathy, Cynthia Riviere, Sima Berendes, Javier R Lama, Sandra W Cardoso, Patcharaphan Sugandhavesa, Parul Christian, Richard D Semba, Thomas B Campbell, Amita Gupta
INTRODUCTION: Numerous micronutrients have immunomodulatory roles that may influence risk of tuberculosis (TB), but the association between baseline micronutrient deficiencies and incident TB after antiretroviral (ART) initiation in HIV-infected individuals is not well characterized. METHODS: We conducted a case-cohort study (n=332) within a randomized trial comparing three ART regimens in 1571 HIV treatment-naïve adults from nine countries. A subcohort of 30 patients was randomly selected from each country (n=270)...
February 6, 2017: Journal of Acquired Immune Deficiency Syndromes: JAIDS
https://www.readbyqxmd.com/read/28167509/results-from-a-phase-i-ii-open-label-dose-finding-study-of-pralatrexate-and-oral-bexarotene-in-patients-with-relapsed-refractory-cutaneous-t-cell-lymphoma
#8
Madeleine Duvic, Youn H Kim, Pier Luigi Zinzani, Steven Horwitz
PURPOSE: Pralatrexate is a folic acid analog metabolic inhibitor similar to methotrexate,that has shown tolerability and efficacy with an overall response rate of 45% in a phase 1 dose de-escalation study of patients with relapsed/refractory cutaneous T-cell lymphoma CTCL. EXPERIMENTAL DESIGN: The object of this phase I/II open-label, multi-center clinical trial was to determine the maximum tolerated dose (MTD) and recommended dose of pralatrexate plus oral bexarotene in 34 patients with relapsed/refractory CTCL who had failed prior systemic therapies...
February 6, 2017: Clinical Cancer Research: An Official Journal of the American Association for Cancer Research
https://www.readbyqxmd.com/read/28164642/serum-homocysteine-folate-and-vitamin-b12-levels-in-carbamazepine-treated-epileptic-children
#9
Tarun K Sharma, S K Vardey, S Sitaraman
BACKGROUND: Antiepileptic drugs (AEDs) have been associated with metabolic consequences that lead to an increase in risk of atherosclerosis in patients with epilepsy. Therefore, we evaluated whether differences exist in homocysteine, folate, and vitamin B12 levels in children receiving carbamazepine (CBZ) monotherapy. METHODS: A total of 58 newly diagnosed epileptic children with ages ranging from 2 to 15 years were enrolled at the start of study. However, after 3 months follow up, the final total sample size was only 50 epileptic children...
July 1, 2016: Clinical Laboratory
https://www.readbyqxmd.com/read/28139536/exploring-the-bio-behavioural-link-between-stress-allostatic-load-micronutrient-status-a-cross-sectional-study-among-adolescent-boys
#10
Little Flower Augustine, Krishnapillai Madhavan Nair, Sylvia Fernandez Rao, Mendu Vishnu Vardhana Rao, Punjal Ravinder, Avula Laxmaiah
BACKGROUND & OBJECTIVES: Allostatic load (AL) is a cumulative measure of physiological deregulation and is influenced by multiple factors including nutrition. The objectives of the study were to assess AL among adolescent boys (15-19 yr) and delineate its association with psychological stress and micronutrient status. METHODS: A cross-sectional, school-based study was conducted among 370 adolescent boys of five higher secondary schools from Hyderabad, India. Perceived stress, adolescent life event stress (ALES), psychological morbidity and coping were measured...
September 2016: Indian Journal of Medical Research
https://www.readbyqxmd.com/read/28134233/-the-role-of-diet-in-multiple-sclerosis
#11
REVIEW
Karolina Brzostek, Anna Ukleja
Multiple sclerosis is a chronic demyelinating disease of the central nervous system. The aim of this study was to present the relationship between nutrition and the occurrence and course of the disease. The work on the basis of the literature demonstrated the adverse effect of high intake of saturated fatty acids and salt on the development and course of multiple sclerosis. Also in the paper we demonstrat a correlation between favorable adequate supply of omega-3, vitamin D, B12 and folic acid and the risk of exacerbation and symptoms of MS...
January 23, 2017: Polski Merkuriusz Lekarski: Organ Polskiego Towarzystwa Lekarskiego
https://www.readbyqxmd.com/read/28129784/vitamin-b12-deficiency-neuropathy-a-rare-diagnosis-in-young-adults-a-case-report
#12
Cyril Jabea Ekabe, Jules Kehbila, Martin Hongieh Abanda, Benjamin Momo Kadia, Carlson-Babila Sama, Gottlieb Lobe Monekosso
BACKGROUND: Vitamin B12 deficiency is a metabolic disorder with many causes. It often presents with megaloblastic anaemia and neurological disorders which entail prompt treatment. The diagnosis of Vitamin B12 deficiency is challenging in resource limited-settings due to limited access to diagnostic tools and unfamiliarity with the disease, owing to its rarity especially in young people. CASE PRESENTATION: A 28 year old female Cameroonian presented with progressive burning painful sensations on the upper trunk, paraesthesia and numbness of the upper and lower limbs for a period of 5 years...
January 28, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/28128319/conformational-change-of-a-tryptophan-residue-in-btuf-facilitates-binding-and-transport-of-cobinamide-by-the-vitamin-b12-transporter-btucd-f
#13
S A Mireku, M Ruetz, T Zhou, V M Korkhov, B Kräutler, K P Locher
BtuCD-F is an ABC transporter that mediates cobalamin uptake into Escherichia coli. Early in vivo data suggested that BtuCD-F might also be involved in the uptake of cobinamide, a cobalamin precursor. However, neither was it demonstrated that BtuCD-F indeed transports cobinamide, nor was the structural basis of its recognition known. We synthesized radiolabeled cyano-cobinamide and demonstrated BtuCD-catalyzed in vitro transport, which was ATP- and BtuF-dependent. The crystal structure of cobinamide-bound BtuF revealed a conformational change of a tryptophan residue (W66) in the substrate binding cleft compared to the structure of cobalamin-bound BtuF...
January 27, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28109593/apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows-fed-diets-with-different-forage-to-concentrate-ratios
#14
M Seck, J A Voelker Linton, M S Allen, D S Castagnino, P Y Chouinard, C L Girard
Effects of the forage-to-concentrate ratio on apparent ruminal synthesis of thiamine, riboflavin, niacin, vitamin B6, folates, and vitamin B12 were evaluated in an experiment using 14 ruminally and duodenally cannulated Holstein cows. The experiment was a crossover design with two 15-d treatment periods and a 14-d preliminary period in which cows were fed a diet intermediate in composition between the treatment diets. Treatments were diets containing low-forage (44.8% forage, 32.8% starch, 24.4% neutral detergent fiber) or high-forage (61...
March 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/28109191/serum-high-concentrations-of-homocysteine-and-low-levels-of-folic-acid-and-vitamin-b12-are-significantly-correlated-with-the-categories-of-coronary-artery-diseases
#15
Yan Ma, Duanliang Peng, Chenggui Liu, Chen Huang, Jun Luo
BACKGROUND: Homocysteine (Hcy) has been considered as an independent risk factor for coronary artery disease (CAD). Folic acid and vitamin B12 are two vital regulators in Hcy metabolic process. We evaluated the correlations between serum Hcy, folic acid and vitamin B12 with the categories of CAD. METHODS: Serum Hcy, folic acid and vitamin B12 from 292 CAD patients, including 73 acute myocardial infarction (AMI), 116 unstable angina pectoris (UAP), 103 stable angina pectoris (SAP), and 100 controls with chest pain patients were measured, and the data were analyzed by SPSS software...
January 21, 2017: BMC Cardiovascular Disorders
https://www.readbyqxmd.com/read/28109187/antimicrobial-and-antioxidant-activities-of-saccharomyces-cerevisiae-ifst062013-a-potential-probiotic
#16
Md Fakruddin, Md Nur Hossain, Monzur Morshed Ahmed
BACKGROUND: Probiotic yeast has become a field of interest to scientists in recent years. METHODS: Conventional cultural method was employed to isolate and identify yeast and standard methods were used to determine different probiotic attributes, antimicrobial and antioxidant properties. RESULTS: This study reports potential probiotic properties of a strain of S. cerevisiae IFST 062013 isolated from fruit. The isolate is tolerant to a wide range of temperature and pH, high concentration of bile salt and NaCl, gastric juice, intestinal environment, α-amylase, trypsin and lysozyme...
January 21, 2017: BMC Complementary and Alternative Medicine
https://www.readbyqxmd.com/read/28108882/prevalence-of-vitamin-b12-and-folate-deficiency-in-school-children-residing-at-high-altitude-regions-in-india
#17
Aakriti Gupta, Umesh Kapil, Lakshmy Ramakrishnan, Ravindra Mohan Pandey, Chander Prakash Yadav
OBJECTIVE: To assess the prevalence of vitamin B12 and folate deficiencies among children residing at high altitude regions of Himachal Pradesh, India. METHODS: A total of 215 school children in the age group of 6-18 y were included. Biochemical estimation of serum vitamin B12 and folate levels was undertaken using chemiluminescence immunoassay method. The consumption pattern of foods high in dietary vitamin B12 and folate was recorded using Food Frequency Questionnaire...
January 21, 2017: Indian Journal of Pediatrics
https://www.readbyqxmd.com/read/28106733/high-prevalence-of-vitamin-b12-deficiency-and-no-folate-deficiency-in-young-children-in-nepal
#18
Bernadette N Ng'eno, Cria G Perrine, Ralph D Whitehead, Giri Raj Subedi, Saba Mebrahtu, Pradiumna Dahal, Maria Elena D Jefferds
Many children in low- and middle-income countries may have inadequate intake of vitamin B12 and folate; data confirming these inadequacies are limited. We used biochemical, demographic, behavioral and anthropometric data to describe the folate and vitamin B12 concentrations among six- to 23-month-old Nepalese children. Vitamin B12 (serum B12 < 150 pmol/L) and folate deficiencies (red blood cell (RBC) folate < 226.5 nmol/L) were assessed. We used logistic regression to identify predictors of vitamin B12 deficiency...
January 17, 2017: Nutrients
https://www.readbyqxmd.com/read/28104698/periconceptional-maternal-one-carbon-biomarkers-are-associated-with-embryonic-development-according-to-the-carnegie-stages
#19
F Parisi, M Rousian, A H J Koning, S P Willemsen, I Cetin, R P M Steegers-Theunissen
STUDY QUESTION: Is periconceptional maternal one-carbon (I-C) metabolism associated with embryonic morphological development in non-malformed ongoing pregnancies? SUMMARY ANSWER: Serum vitamin B12, red blood cell (RBC) folate and plasma total homocysteine (tHcy) are associated with embryonic development according to the Carnegie stages. WHAT IS KNOWN ALREADY: Derangements in maternal I-C metabolism affect reproductive and pregnancy outcomes, as well as future health of the offspring...
January 18, 2017: Human Reproduction
https://www.readbyqxmd.com/read/28102671/structural-analysis-of-the-glycosylated-intact-hiv-1-gp120-b12-antibody-complex-using-hydroxyl-radical-protein-footprinting
#20
Xiaoyan Li, Oliver C Grant, Keigo Ito, Aaron Wallace, Shixia Wang, Peng Zhao, Lance Wells, Shan Lu, Robert J Woods, Joshua S Sharp
Glycoprotein gp120 is a surface antigen and virulence factor of human immunodeficiency virus 1. Broadly neutralizing antibodies (bNAbs) that react to gp120 from a variety of HIV isolates offer hope for the development of broadly effective immunogens for vaccination purposes, if the interactions between gp120 and bNAbs can be understood. From a structural perspective, gp120 is a particularly difficult system because of its size, the presence of multiple flexible regions, and the large amount of glycosylation, all of which are important in gp120-bNAb interactions...
February 21, 2017: Biochemistry
keyword
keyword
39830
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"