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B-vitamins

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https://www.readbyqxmd.com/read/28106816/nutrient-patterns-associated-with-fasting-glucose-and-glycated-haemoglobin-levels-in-a-black-south-african-population
#1
Tinashe Chikowore, Pedro T Pisa, Tertia van Zyl, Edith J M Feskens, Edelweiss Wentzel-Viljoen, Karin R Conradie
Type 2 diabetes (T2D) burden is increasing globally. However, evidence regarding nutrient patterns associated with the biomarkers of T2D is limited. This study set out to determine the nutrient patterns associated with fasting glucose and glycated haemoglobin the biomarkers of T2D. Factor analysis was used to derive nutrient patterns of 2010 participants stratified by urban/rural status and gender. Principal Component Analysis (PCA) was applied to 25 nutrients, computed from the quantified food frequency questionnaires (QFFQ)...
January 19, 2017: Nutrients
https://www.readbyqxmd.com/read/28098048/folate-and-vitamin-b12-concentrations-are-associated-with-plasma-dha-and-epa-fatty-acids-in-european-adolescents-the-healthy-lifestyle-in-europe-by-nutrition-in-adolescence-helena-study
#2
I Iglesia, I Huybrechts, M González-Gross, T Mouratidou, J Santabárbara, V Chajès, E M González-Gil, J Y Park, S Bel-Serrat, M Cuenca-García, M Castillo, M Kersting, K Widhalm, S De Henauw, M Sjöström, F Gottrand, D Molnár, Y Manios, A Kafatos, M Ferrari, P Stehle, A Marcos, F J Sánchez-Muniz, L A Moreno
This study aimed to examine the association between vitamin B6, folate and vitamin B12 biomarkers and plasma fatty acids in European adolescents. A subsample from the Healthy Lifestyle in Europe by Nutrition in Adolescence study with valid data on B-vitamins and fatty acid blood parameters, and all the other covariates used in the analyses such as BMI, Diet Quality Index, education of the mother and physical activity assessed by a questionnaire, was selected resulting in 674 cases (43 % males). B-vitamin biomarkers were measured by chromatography and immunoassay and fatty acids by enzymatic analyses...
January 18, 2017: British Journal of Nutrition
https://www.readbyqxmd.com/read/28087280/increased-homocysteine-levels-impair-reference-memory-and-reduce-cortical-levels-of-acetylcholine-in-a-mouse-model-of-vascular-cognitive-impairment
#3
Kevin Dam, Martina Füchtemeier, Tracy D Farr, Philipp Boehm-Sturm, Marco Foddis, Ulrich Dirnagl, Olga Malysheva, Marie A Caudill, Nafisa M Jadavji
Folates are B-vitamins that are vital for normal brain function. Deficiencies in folates either genetic (methylenetetrahydrofolate reductase, MTHFR) or dietary intake of folic acid result in elevated levels of homocysteine. Clinical studies have shown that elevated levels of homocysteine (Hcy) may be associated with the development of dementia, however this link remains unclear. The purpose of this study was to evaluate the impact of increased Hcy levels on a mouse model of vascular cognitive impairment (VCI) produced by chronic hypoperfusion...
January 11, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28080896/traumatic-foreign-body-pericarditis-in-a-toco-toucan-ramphastos-toco
#4
Mireia Máinez, Jorge Rosell, Roger Such, Teresa Cardona, Carles Juan-Sallés
An approximately 10-yr-old, captive-born female toco toucan ( Ramphastos toco ) was presented due to an acute onset of depression and apathy. On visual and physical examination, it showed an abnormal posture and dehydration, respectively. Serum biochemistry revealed hyperuricemia (39.4 mg/dl) and elevated glutamic oxaloacetic transaminase (GOT; 1,050 U/L). Radiographs demonstrated an enlargement of the cardiac silhouette. The bird died 7 days after presentation, despite treatment with enrofloxacin, allopurinol, a preparation of hepatorenal protectors, and complex B vitamins with dextrose...
December 2016: Journal of Zoo and Wildlife Medicine: Official Publication of the American Association of Zoo Veterinarians
https://www.readbyqxmd.com/read/28075382/b-vitamin-intake-and-biomarker-status-in-relation-to-cognitive-decline-in-healthy-older-adults-in-a-4-year-follow-up-study
#5
Catherine F Hughes, Mary Ward, Fergal Tracey, Leane Hoey, Anne M Molloy, Kristina Pentieva, Helene McNulty
Advancing age can be associated with an increase in cognitive dysfunction, a spectrum of disability that ranges in severity from mild cognitive impairment to dementia. Folate and the other B-vitamins involved in one-carbon metabolism are associated with cognition in ageing but the evidence is not entirely clear. The hypothesis addressed in this study was that lower dietary intake or biomarker status of folate and/or the metabolically related B-vitamins would be associated with a greater than expected rate of cognitive decline over a 4-year follow-up period in healthy older adults...
January 10, 2017: Nutrients
https://www.readbyqxmd.com/read/28041597/the-effects-of-vitamin-b-on-the-immune-cytokine-network-and-their-involvement-in-depression
#6
REVIEW
Kathleen Mikkelsen, Lily Stojanovska, Monica Prakash, Vasso Apostolopoulos
Increasing evidence indicates that there are various interactions between the nervous system and the immune system, and that the immune system plays an important role in the pathogenesis of depression. Pro-inflammatory cytokines (such as IL-1, IL-6, TNF-α) have been implicated in the neurobiological manifestations of depression. The immune/cytokine network has a powerful influence on the brain. In addition, deficiency in B vitamins has been linked to depression. Hence, greater knowledge of how immune cells change in the presence of vitamin B derivatives could improve understanding of how immune changes may correlate with depression, all of which are discussed herein...
February 2017: Maturitas
https://www.readbyqxmd.com/read/28029114/folate-and-vitamin-b12-related-biomarkers-in-relation-to-brain-volumes
#7
Nikita L van der Zwaluw, Elske M Brouwer-Brolsma, Ondine van de Rest, Janneke P van Wijngaarden, Paulette H In 't Veld, Daniella I Kourie, Karin M A Swart, Anke W Enneman, Suzanne C van Dijk, Nathalie van der Velde, Roy P C Kessels, Paul A M Smeets, Frans J Kok, Rosalie A M Dhonukshe-Rutten, Lisette C P G M de Groot
AIM: We investigated cross-sectional associations between circulating homocysteine, folate, biomarkers of vitamin B12 status and brain volumes. We furthermore compared brain volumes of participants who received daily folic acid and vitamin B12 supplementation with participants who did not. METHODS: Participants of the B-PROOF study (n = 2919) were assigned to 400 µg folic acid and 500 µg vitamin B12, or a placebo. After two years of intervention, T₁-weighted magnetic resonance imaging (MRI) scans were made in a random subsample (n = 218) to obtain grey and white matter volume, and total brain volume (TBV)...
December 24, 2016: Nutrients
https://www.readbyqxmd.com/read/28007697/computational-modelling-folate-metabolism-and-dna-methylation-implications-for-understanding-health-and-ageing
#8
Mark T Mc Auley, Kathleen M Mooney, J Enrique Salcedo-Sora
Dietary folates have a key role to play in health, as deficiencies in the intake of these B vitamins have been implicated in a wide variety of clinical conditions. The reason for this is folates function as single carbon donors in the synthesis of methionine and nucleotides. Moreover, folates have a vital role to play in the epigenetics of mammalian cells by supplying methyl groups for DNA methylation reactions. Intriguingly, a growing body of experimental evidence suggests that DNA methylation status could be a central modulator of the ageing process...
December 21, 2016: Briefings in Bioinformatics
https://www.readbyqxmd.com/read/28004270/determinants-of-folate-and-vitamin-b12-plasma-levels-in-the-french-e3n-epic-cohort
#9
Jordi de Batlle, Marco Matejcic, Veronique Chajes, Hortensia Moreno-Macias, Amina Amadou, Nadia Slimani, David G Cox, Françoise Clavel-Chapelon, Guy Fagherazzi, Isabelle Romieu
PURPOSE: Impaired B vitamin status has been identified as a risk factor for major chronic diseases. This study aims at examining the determinants of plasma folate and vitamin B12 concentrations, considering lifestyle factors and MTHFR polymorphisms. METHODS: A total of 988 women aged 40-65 years from the French E3N cohort were investigated. Intakes of folate and vitamin B12 were assessed using food frequency questionnaires, and plasma concentrations were measured by microbiological assay...
December 21, 2016: European Journal of Nutrition
https://www.readbyqxmd.com/read/27995520/effect-of-medications-for-gastric-acid-related-symptoms-on-total-motile-sperm-count-and-concentration-a-case-control-study-in-men-of-subfertile-couples-from-the-netherlands
#10
Nicole A Huijgen, Hedwig J Goijen, John M Twigt, Annemarie G M G J Mulders, Jan Lindemans, Gert R Dohle, Joop S E Laven, Régine P M Steegers-Theunissen
INTRODUCTION: Gastric acid-related symptoms are highly prevalent in the general population (21-40%), and more than 11% of individuals use medication for the treatment of these symptoms. The uptake of micronutrients is dependent on the gastrointestinal potential of hydrogen (pH). OBJECTIVE: We hypothesized that medication affecting gastrointestinal pH reduces the availability of B vitamins, thereby deranging one-carbon metabolism and detrimentally affecting spermatogenesis...
December 19, 2016: Drug Safety: An International Journal of Medical Toxicology and Drug Experience
https://www.readbyqxmd.com/read/27993349/corrigendum-to-particle-length-of-silages-affects-apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows-j-dairy-sci-99-6229-6236
#11
D S Castagnino, K L Kammes, M S Allen, R Gervais, P Y Chouinard, C L Girard
No abstract text is available yet for this article.
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27993348/corrigendum-to-effects-of-dietary-nitrogen-levels-and-carbohydrate-sources-on-apparent-ruminal-synthesis-of-some-b-vitamins-in-dairy-cows-j-dairy-sci-99-2730-2739
#12
V Beaudet, R Gervais, B Graulet, P Nozière, M Doreau, A Fanchone, D S Castagnino, C L Girard
No abstract text is available yet for this article.
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27993347/corrigendum-to-effects-of-forage-family-on-apparent-ruminal-synthesis-of-b-vitamins-in-lactating-dairy-cows-j-dairy-sci-99-1884-1894
#13
D S Castagnino, M Seck, V Beaudet, K L Kammes, J A Voelker Linton, M S Allen, R Gervais, P Y Chouinard, C L Girard
No abstract text is available yet for this article.
January 2017: Journal of Dairy Science
https://www.readbyqxmd.com/read/27982479/hypermethylation-causes-and-consequences-in-skeletal-muscle-myopathy
#14
Avisek Majumder, JyotirmayaBehera, Navena Jeremic, Suresh C Tyagi
A detrimental consequence of hypermethylation is hyperhomocysteinemia (HHcy), that causes oxidative stress, inflammation and matrix degradation, which leads to multi-pathology in different organs. Although, it is well known that hypermethylation leads to overall gene silencing and hypomethylation leads to overall gene activation, the role of such process in skeletal muscle dysfunction during HHcy condition is unclear. In this study, we emphasized the multiple mechanisms including epigenetic alteration by which HHcy causes skeletal muscle myopathy...
December 16, 2016: Journal of Cellular Biochemistry
https://www.readbyqxmd.com/read/27979196/b-vitamins-carotenoids-and-%C3%AE-%C3%AE-tocopherol-in-raw-and-roasted-nuts
#15
Wolfgang Stuetz, Wiebke Schlörmann, Michael Glei
The concentrations of B-vitamins, carotenoids and tocopherols in nuts may differ between species and might be influenced by roasting. Thiamine, riboflavin, pyridoxine, lutein, zeaxanthin, β-carotene and α-/γ-tocopherol were determined in different varieties of raw and roasted nuts using HPLC (fluorescence/UV-vis detection). The analysis revealed remarkable concentrations of thiamine and pyridoxine in pistachios (57%, 79% of the recommended daily intake/100g (RDI), respectively) and riboflavin in almonds (119% of the RDI)...
April 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/27979049/medical-management-of-severe-alcoholic-hepatitis-expert%C3%A2-review-from-the-clinical-practice-updates-committee-of%C3%A2-the-aga-institute
#16
Mack C Mitchell, Lawrence S Friedman, Craig J McClain
The purpose of this clinical practice update is to review diagnostic criteria for severe acute alcoholic hepatitis and to determine the current best practices for this life-threatening condition. The best practices in this review are based on clinical trials, systematic reviews including meta-analysis and expert opinion to develop an approach to diagnosis and management. Best Practice Advice 1: Abstinence from drinking alcohol is the cornerstone of treatment for alcohol hepatitis (AH). Best Practice Advice 2: Patients with jaundice and suspected AH should have cultures of blood, urine, and ascites, if present, to determine the presence of bacterial infections regardless of whether they have fever...
January 2017: Clinical Gastroenterology and Hepatology
https://www.readbyqxmd.com/read/27974600/role-of-folic-acid-in-nitric-oxide-bioavailability-and-vascular-endothelial-function
#17
Anna E Stanhewicz, W Larry Kenney
Folic acid is a member of the B-vitamin family and is essential for amino acid metabolism. Adequate intake of folic acid is vital for metabolism, cellular homeostasis, and DNA synthesis. Since the initial discovery of folic acid in the 1940s, folate deficiency has been implicated in numerous disease states, primarily those associated with neural tube defects in utero and neurological degeneration later in life. However, in the past decade, epidemiological studies have identified an inverse relation between both folic acid intake and blood folate concentration and cardiovascular health...
January 2017: Nutrition Reviews
https://www.readbyqxmd.com/read/27973419/potential-links-between-impaired-one-carbon-metabolism-due-to-polymorphisms-inadequate-b-vitamin-status-and-the-development-of-alzheimer-s-disease
#18
REVIEW
Barbara Troesch, Peter Weber, M Hasan Mohajeri
Alzheimer's disease (AD) is the major cause of dementia and no preventive or effective treatment has been established to date. The etiology of AD is poorly understood, but genetic and environmental factors seem to play a role in its onset and progression. In particular, factors affecting the one-carbon metabolism (OCM) are thought to be important and elevated homocysteine (Hcy) levels, indicating impaired OCM, have been associated with AD. We aimed at evaluating the role of polymorphisms of key OCM enzymes in the etiology of AD, particularly when intakes of relevant B-vitamins are inadequate...
December 10, 2016: Nutrients
https://www.readbyqxmd.com/read/27916904/impact-of-pre-pregnancy-bmi-on-b-vitamin-and-inflammatory-status-in-early-pregnancy-an-observational-cohort-study
#19
Anne-Lise Bjørke-Monsen, Arve Ulvik, Roy M Nilsen, Øivind Midttun, Christine Roth, Per Magnus, Camilla Stoltenberg, Stein Emil Vollset, Ted Reichborn-Kjennerud, Per Magne Ueland
Maternal nutrition and inflammation have been suggested as mediators in the development of various adverse pregnancy outcomes associated with maternal obesity. We have investigated the relation between pre-pregnancy BMI, B vitamin status, and inflammatory markers in a group of healthy pregnant women. Cobalamin, folate, pyridoxal 5'-phosphate, and riboflavin; and the metabolic markers homocysteine, methylmalonic acid, and 3-hydroxykynurenine/xanthurenic acid ratio (HK/XA); and markers of cellular inflammation, neopterin and kynurenine/tryptophan ratio (KTR) were determined in pregnancy week 18 and related to pre-pregnancy body mass index (BMI), in 2797 women from the Norwegian Mother and Child Cohort Study (MoBa)...
November 30, 2016: Nutrients
https://www.readbyqxmd.com/read/27905104/biomarkers-of-folate-and-vitamin-b12-and-breast-cancer-risk-report-from-the-epic-cohort
#20
M Matejcic, J de Batlle, C Ricci, C Biessy, F Perrier, I Huybrechts, E Weiderpass, Boutron-Mc Ruault, C Cadeau, M His, D G Cox, H Boeing, R T Fortner, R Kaaks, P Lagiou, A Trichopoulou, V Benetou, R Tumino, S Panico, S Sieri, D Palli, F Ricceri, H B Bueno-de-Mesquita, G Skeie, P Amiano, M J Sánchez, M D Chirlaque, A Barricarte, J R Quirós, G Buckland, C H van Gils, P H Peeters, T J Key, E Riboli, B Gylling, A Zeleniuch-Jacquotte, M J Gunter, I Romieu, V Chajès
Epidemiological studies have reported inconsistent findings for the association between B vitamins and breast cancer (BC) risk. We investigated the relationship between biomarkers of folate and vitamin B12 and the risk of BC in the European Prospective Investigation into Cancer and Nutrition (EPIC) cohort. Plasma concentrations of folate and vitamin B12 were determined in 2,491 BC cases individually matched to 2,521 controls among women who provided baseline blood samples. Multivariable logistic regression models were used to estimate odds ratios by quartiles of either plasma B vitamin...
December 1, 2016: International Journal of Cancer. Journal International du Cancer
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