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47869

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Taliha Öner et al.
Pediatrics, 133(1), e138-e142 (2013-12-25)
Vitamin B12 is involved in the production of adrenaline from noradrenaline. It is the cofactor involved in catecholamine degradation and plays a role in myelin synthesis. The current study aimed to investigate the association between vitamin B12 levels and postural
Daniela Baldoni et al.
Molecular imaging and biology : MIB : the official publication of the Academy of Molecular Imaging, 17(6), 829-837 (2015-04-11)
Vitamin B12 (cyanocobalamin, Cbl) is accumulated by rapidly replicating prokaryotic and eukaryotic cells. We investigated the potential of a Tc-99m labelled Cbl derivative ([(99m)Tc]PAMA(4)-Cbl) for targeting infections caused by Escherichia coli and Staphylococcus aureus. In vitro binding assays were followed
Jeongdae Im et al.
Environmental science & technology, 48(22), 13181-13187 (2014-10-21)
The hydrofluoroolefin 2,3,3,3-tetrafluoropropene (HFO-1234yf) has been introduced to replace 1,1,1,2-tetrafluoroethane (HFC-134a) as refrigerant in mobile, including vehicle, air conditioning systems because of its lower global warming potential. HFO-1234yf is volatile at ambient temperatures; however, high production volumes and widespread handling
Azita Hekmatdoost et al.
PloS one, 10(12), e0143569-e0143569 (2015-12-03)
To determine whether 5-methylenetetrahydrofolate (MTHF) is more effective than folic acid supplementation in treatment of recurrent abortion in different MTHFR gene C677T and A1298C polymorphisms. A randomized, double blind, placebo-controlled trial conducted April 2011-September 2014 in recurrent abortion clinics in
Bhawani Chamlagain et al.
Food chemistry, 166, 630-638 (2014-07-24)
A sensitive and selective method is needed to analyse in situ produced vitamin B12 in plant-based materials, potential new dietary sources of vitamin B12. A UHPLC/UV method was developed and validated for the determination of human active vitamin B12 in
Brad Hine et al.
Journal of cellular biochemistry, 115(11), 1948-1954 (2014-06-11)
Intestinal uptake of vitamin B12 (hereafter B12) is impaired in a significant proportion of the human population. This impairment is due to inherited or acquired defects in the expression or function of proteins involved in the binding of diet-derived B12
Ontario health technology assessment series, 13(23), 1-45 (2014-01-01)
More than 2.9 million serum vitamin B12 tests were performed in 2010 in Ontario at a cost of $40 million. Vitamin B12 deficiency has been associated with a few neurocognitive disorders. To determine the clinical utility of B12 testing in
Marzia Dolcino et al.
PloS one, 9(5), e97571-e97571 (2014-05-17)
Regular intravenous immunoglobulin treatment is used to replace antibody deficiency in primary immunodeficiency diseases; however the therapeutic effect seems to be related not only to antibody replacement but also to an active role in the modulation of the immune response.
Sylwester Kurcoń et al.
The Journal of organic chemistry, 78(8), 4115-4122 (2013-04-03)
Heptamethyl cobyrinate was transformed into hexamethyl 8-nor-cobyrinate. The crucial step involved the synthesis of new, vitamin B12 derived cobryketone via palladium-catalyzed cleavage of the sp(3)-sp(3) carbon-carbon bond with the liberation of the ketone. The replacement of sp(3) carbon atom with
Jian-Zhuang Tan et al.
Journal of the science of food and agriculture, 95(1), 126-135 (2014-04-15)
The effects of dietary l-arginine (Arg) on immunosuppression following infectious bursal disease virus (IBDV) inoculation in broiler chickens were evaluated. The design of this study was a 5 × 2 factorial arrangement (n = 5) with five Arg concentrations (starter:
Nikita L van der Zwaluw et al.
Neurology, 83(23), 2158-2166 (2014-11-14)
We investigated the effects of 2-year folic acid and vitamin B12 supplementation on cognitive performance in elderly people with elevated homocysteine (Hcy) levels. This multicenter, double-blind, randomized, placebo-controlled trial included 2,919 elderly participants (65 years and older) with Hcy levels
Ann Brunick et al.
Dental assistant (Chicago, Ill. : 1994), 82(4), 12-12 (2013-09-06)
This course will teach the desirable characteristics of nitrous oxide, indications and contraindications for N2O/O2 use, as well as facts and myths surrounding chronic exposure to nitrous oxide, the biologic effects associated with high levels of the gas, and ways
Paula Dominguez-Salas et al.
The American journal of clinical nutrition, 97(6), 1217-1227 (2013-04-12)
Animal models show that periconceptional supplementation with folic acid, vitamin B-12, choline, and betaine can induce differences in offspring phenotype mediated by epigenetic changes in DNA. In humans, altered DNA methylation patterns have been observed in offspring whose mothers were
Mattias Johansson et al.
Journal of the National Cancer Institute, 106(12), doi:10-doi:10 (2014-11-08)
The etiology of renal cell carcinoma (RCC) is only partially understood, but a metabolic component appears likely. We investigated biomarkers of one-carbon metabolism and RCC onset and survival. The European Prospective Investigation into Cancer and Nutrition (EPIC) recruited 385747 participants
Reiko Nishihara et al.
The American journal of clinical nutrition, 100(6), 1479-1488 (2014-11-21)
Although a higher consumption of alcohol, which is a methyl-group antagonist, was previously associated with colorectal cancer risk, mechanisms remain poorly understood. We hypothesized that excess alcohol consumption might increase risk of colorectal carcinoma with hypomethylation of insulin-like growth factor
Neelam Chhillar et al.
Annals of Indian Academy of Neurology, 17(3), 308-312 (2014-09-16)
Changes in lifestyle habits such as diet modification or supplementation have been indicated as probable protective factors for a number of chronic conditions including Alzheimer's disease (AD). With this background, we aim to hypothesize that whether C677T polymorphism of methylenetetrahydrofolate
Determination of cyanocobalamin by isotope dilution LC-MS/MS
D-Ulivo L, et al.
Analytica Chimica Acta (2017)
Ali Ihsan Gemici et al.
Clinical and experimental rheumatology, 31(3 Suppl 77), 57-59 (2013-10-23)
Familial Mediterranean fever (FMF) is an autosomal recessive autoinflammatory disease characterised by paroxysmal attacks of serosal inflammation. Colchicine is highly effective in preventing these attacks but it may also disrupt the intestinal absorption of vitamin B12. We hypothesised that patients
András Jeney
Orvosi hetilap, 154(44), 1754-1758 (2013-10-29)
Increased blood cell regeneration in exsanguinated experimental animals treated either with liver or with aqueous liver extracts was reported by Whipple and by Jeney and Jobling, respectively. These findings stimulated Minot and Murphy to provide evidence for the efficacy of
Fatou Ba et al.
Bioresource technology, 200, 147-152 (2015-10-20)
A water-soluble matrix was extracted from green vegetative Haematococcus pluvialis through high-pressure cell disruption either at native pH (5.7) or with pH shifting to neutral (7). The resulting supernatant is mainly composed of carbohydrates and proteins, with the highest yield
Rebecca L Lander et al.
Public health nutrition, 17(9), 1984-1992 (2013-09-07)
To examine the micronutrient status of disadvantaged pre-schoolers from Northeast Brazil, following the introduction of pro-poor policies, by assessing the prevalence of anaemia and micronutrient deficiencies and the role of sociodemographic factors, genetic Hb disorders and parasitic infections. In a
Katherine R Heal et al.
Rapid communications in mass spectrometry : RCM, 28(22), 2398-2404 (2014-10-11)
Vitamin B(12) is an essential nutrient for more than half of surveyed marine algae species, but methods for directly measuring this important cofactor in seawater are limited. Current mass spectrometry methods do not quantify all forms of B(12), potentially missing
Alvin Nursalim et al.
Acta medica Indonesiana, 45(2), 150-156 (2013-06-19)
to determine whether the administration of folic acid, vitamin B6 and vitamin B12 would lead to reduction of cardiovascular complication and mortality among CKD patients. a search was conducted on PubMed and Google. The selection of title and abstract was
Jae Hoon Moon et al.
Stroke, 46(4), 1024-1030 (2015-03-05)
We investigated the association between cardiovascular risk factors, including carotid intima-media thickness (CIMT), and future risk of mild cognitive impairment (MCI) and dementia in elderly subjects. We conducted a population-based prospective study as a part of the Korean Longitudinal Study
Gang Xu et al.
American journal of physical medicine & rehabilitation, 93(4), 287-298 (2013-11-08)
The aim of this study was to explore the efficacy of transcutaneous electrical nerve stimulation (TENS) with locally injected cobalamin in relieving pain and improving activities of daily living in patients with postherpetic neuralgia. Ninety patients (≥50 yrs old) with
Vladimir M Korkhov et al.
Nature structural & molecular biology, 21(12), 1097-1099 (2014-11-18)
The reaction mechanism of BtuCD-F-catalyzed vitamin B12 transport into Escherichia coli is currently unclear. Here we present the structure of the last missing state in the form of AMP-PNP-bound BtuCD, trapped by a disulfide cross-link. Our structural and biochemical data
Inong R Gunanti et al.
The Journal of nutrition, 144(12), 2027-2033 (2014-11-21)
Micronutrient status may be a contributing factor to the development of childhood obesity in many industrializing countries passing the nutritional transition. The few studies investigating associations between serum concentrations of vitamin B and intake of B vitamins with adiposity, however
A F Remacha et al.
Annals of hematology, 93(4), 565-569 (2013-09-24)
Plasma holotranscobalamin (holoTC) transports active cobalamin. Decreased levels of holoTC have been considered to be the earliest marker of cobalamin (Cbl) deficiency. In this work, holoTC was evaluated in low or borderline serum Cbl (LB12) and a concordance analysis was
Stephen D Merrigan et al.
American journal of clinical pathology, 141(5), 702-705 (2014-04-10)
To systematically assess five automated cobalamin assays for intrinsic factor binding antibody (IFBA)-induced interference using pooled serum. Six pools created from IFBA-negative and IFBA-positive serum representing low, normal, and high cobalamin concentrations were analyzed before and after polyethylene glycol (PEG)
Vitamin B12 and pernicious anemia--the dawn of molecular medicine.
H Franklin Bunn
The New England journal of medicine, 370(8), 773-776 (2014-02-21)
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