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vitamin b 12 deficiency

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https://www.readbyqxmd.com/read/29643928/effect-of-low-energy-diet-for-eight-weeks-to-adults-with-overweight-or-obesity-on-folate-retinol-vitamin-b-12-d-and-e-status-and-the-degree-of-inflammation-a-post-hoc-analysis-of-a-randomized-intervention-trial
#1
Nina Rica Wium Geiker, Mette Veller, Louise Kjoelbaek, Jette Jakobsen, Christian Ritz, Anne Raben, Arne Astrup, Janne Kunchel Lorenzen, Lesli H Larsen, Susanne Bügel
Background: Obesity is associated with vitamin insufficiency and low grade inflammation. The purpose of this study was to investigate the effect of weight loss on folate, retinol, vitamin B12 , D and E status and the degree of inflammation. Methods: Out of 110, 85 individuals (75% women) aged 39 ± 11 years with a mean ± SD BMI of 33 ± 4 kg/m2 , completed an eight-week low energy diet (LED). Serum concentration of folate, retinol, B12 , D and E and C-reactive protein and homocysteine (Hcy) were measured at baseline and at end of the LED...
2018: Nutrition & Metabolism
https://www.readbyqxmd.com/read/29563097/do-the-benefits-of-folic-acid-fortification-outweigh-the-risk-of-masking-vitamin-b-12-deficiency
#2
(no author information available yet)
No abstract text is available yet for this article.
March 21, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29546304/folate-deficiency-facilitates-genomic-integration-of-human-papillomavirus-type-16-dna-in-vivo-in-a-novel-mouse-model-for-rapid-oncogenic-transformation-of-human-keratinocytes
#3
Suhong Xiao, Ying-Sheng Tang, Praveen Kusumanchi, Sally P Stabler, Ying Zhang, Asok C Antony
Background: Epidemiologic and in vitro studies suggest independent linkages between poor folate and/or vitamin B-12 nutrition, genomic human papillomavirus (HPV) type 16 viral integration, and cancer. However, there is no direct evidence in vivo to support the causative role of poor folate nutrition in HPV16 integration into the cellular genome. Objective: We tested the hypothesis that folate deficiency enables the integration of HPV16 into the genome of HPV16-harboring keratinocytes, and could thereby influence earlier transformation of these cells to cancer in an animal model...
March 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29546303/cobalamin-deficiency-results-in-increased-production-of-formate-secondary-to-decreased-mitochondrial-oxidation-of-one-carbon-units-in-rats
#4
Luke MacMillan, Garrett Tingley, Sara K Young, Kathy A Clow, Edward W Randell, Margaret E Brosnan, John T Brosnan
Background: Formate is produced in mitochondria via the catabolism of serine, glycine, dimethylglycine, and sarcosine. Formate produced by mitochondria may be incorporated into the cytosolic folate pool where it can be used for important biosynthetic reactions. Previous studies from our lab have shown that cobalamin deficiency results in increased plasma formate concentrations. Objective: Our goal was to determine the basis for elevated formate in vitamin B-12 deficiency...
March 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29543316/oral-vitamin-b-12-versus-intramuscular-vitamin-b-12-for-vitamin-b-12-deficiency
#5
REVIEW
Haiyan Wang, Linyi Li, Ling Ling Qin, Yanan Song, Josep Vidal-Alaball, Tong Hua Liu
BACKGROUND: Vitamin B12 deficiency is common, and the incidence increases with age. Most people with vitamin B12 deficiency are treated in primary care with intramuscular (IM) vitamin B12 . Doctors may not be prescribing oral vitamin B12 formulations because they may be unaware of this option or have concerns regarding its effectiveness. OBJECTIVES: To assess the effects of oral vitamin B12 versus intramuscular vitamin B12 for vitamin B12 deficiency. SEARCH METHODS: We searched CENTRAL, MEDLINE, Embase, and LILACS, as well as the WHO ICTRP and ClinicalTrials...
March 15, 2018: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/29542862/treatment-of-vitamin-d-deficiency-in-chinese-inflammatory-bowel-disease-patients-a-prospective-randomized-open-label-pilot-study
#6
Bei Tan, Pan Li, Hong Lv, Hong Yang, Yue Li, Ji Li, Ou Wang, Jiaming Qian
AIMS: To assess the necessity and efficacy of vitamin D supplementation in Chinese inflammatory bowel disease (IBD) patients with vitamin D insufficiency/deficiency. METHODS: Seventy-four ulcerative colitis (UC) patients and 71 Crohn's disease (CD) patients were randomly assigned into one of 3 arms for 12 months: Arm A (vitamin D3 150000IU per 3 months plus calcium 600mg oral daily); Arm B (calcium 600mg oral daily), and Arm C (vehicle control group), all in addition to conventional IBD treatment...
March 15, 2018: Journal of Digestive Diseases
https://www.readbyqxmd.com/read/29540270/one-half-of-korean-adults-studied-had-marginal-vitamin-b-12-status-assessed-by-plasma-vitamin-b-12
#7
Young-Nam Kim, Ji Hyeon Hwang, Youn-Ok Cho
Information is limited on the current vitamin B12 status of South Koreans, including the results of biochemical indices. The objective of this study was to assess vitamin B12 status with vitamin B12 intake, major food sources, and plasma vitamin B12 concentration in Korean adults. We hypothesized that vitamin B12 intake and status would be different between sex and age groups. Three consecutive 24-hour recalls and fasting blood samples were obtained from healthy 20- to 64-year-old adults (N=141). The dietary vitamin B12 intake of the men (10...
February 2018: Nutrition Research
https://www.readbyqxmd.com/read/29520674/the-association-between-serum-vitamin-b-12-deficiency-and-tension-type-headache-in-turkish-children
#8
Mustafa Calik, Mehmet Salih Aktas, Emre Cecen, Ibrahim Etem Piskin, Hamza Ayaydın, Zuhal Ornek, Meryem Karaca, Abdullah Solmaz, Halil Ay
This study aimed to determine the relationship between serum vitamin B12 level and tension-type headache. The study groups consisted of 75 patients (40 females, 35 males) with headache and a control group of 49 healthy children (25 females, 24 males). Serum vitamin B12 level < 200 pg/ml was defined as deficient, and < 160 pg/ml as severely deficient. The serum vitamin B12 level was measured by the electrochemiluminescence (ECLIA) method. The serum vitamin B12 levels in the headache and control groups were 273...
March 8, 2018: Neurological Sciences
https://www.readbyqxmd.com/read/29512626/iron-deficiency-and-hematinic-deficiencies-in-atrial-fibrillation-a-new-insight-into-comorbidities
#9
Muhammed Keskin, Dilek Ural, Servet Altay, Onur Argan, Edibe Betül Börklü, Ömer Kozan
OBJECTIVE: Iron deficiency (ID) is the most common nutritional deficiency, and iron metabolism becomes further deteriorated in the presence of certain conditions, such as heart failure (HF). Atrial fibrillation (AF) has many similarities to HF, including a chronic inflammatory pathophysiology; however, the prevalence of ID and other hematinic deficiencies in AF patients have not been determined. METHODS: In this study, the prevalence of iron (serum ferritin <100 µg/L or ferritin 100-299 µg/L with transferrin saturation <20%), vitamin B12 (<200 pg/mL), and folate deficiency (<4...
March 2018: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/29500675/a-randomized-trial-of-a-novel-chewable-multivitamin-and-mineral-supplement-following-roux-en-y-gastric-bypass
#10
Jamie Perin, Gregory Prokopowicz, Margaret Furtado, Konstantinos Papas, Kimberley E Steele
BACKGROUND: Vitamin and mineral deficiencies are common following Roux-en-Y gastric bypass (RYGB) and can lead to significant morbidity, but little research on the efficacy of vitamin supplementation regimens exists. We compared the efficacy and tolerability of an investigational versus a standard multivitamin regimen in patients undergoing RYGB. METHODS: Fifty-six patients, aged 18 to 65, were randomized to an investigational versus a standard multivitamin. Plasma levels of vitamins A, B-12, D, E-α, E-β/γ, thiamine, folate, iron, iron-binding capacity, iron saturation, prealbumin, and parathyroid hormone (PTH) were measured at 3 and 6 months postoperatively...
March 2, 2018: Obesity Surgery
https://www.readbyqxmd.com/read/29499976/effect-of-two-different-sublingual-dosages-of-vitamin-b-12-on-cobalamin-nutritional-status-in-vegans-and-vegetarians-with-a-marginal-deficiency-a-randomized-controlled-trial
#11
Cristian Del Bo', Patrizia Riso, Claudio Gardana, Antonella Brusamolino, Alberto Battezzati, Salvatore Ciappellano
BACKGROUND & AIMS: Vegetarians and vegans are more vulnerable to vitamin B12 deficiency with severe risks of megaloblastic anemia, cognitive decline, neuropathy, and depression. An easy and simple method of supplementation consists of taking one weekly dosage of 2000 μg. However, single large oral doses of vitamin B12 are poorly absorbed. The present research evaluates the ability of two different sublingual dosages of vitamin B12 (350 μg/week vs 2000 μg/week) in improving cyanocobalamin (vitamin B12 ) nutritional status in vegans and vegetarians with a marginal deficiency...
February 15, 2018: Clinical Nutrition: Official Journal of the European Society of Parenteral and Enteral Nutrition
https://www.readbyqxmd.com/read/29496696/do-the-benefits-of-folic-acid-fortification-outweigh-the-risk-of-masking-vitamin-b-12-deficiency
#12
James L Mills, Anne M Molloy, Edward H Reynolds
No abstract text is available yet for this article.
March 1, 2018: BMJ: British Medical Journal
https://www.readbyqxmd.com/read/29477223/vitamin-b-12
#13
A David Smith, Martin J Warren, Helga Refsum
The biosynthesis of B12 , involving up to 30 different enzyme-mediated steps, only occurs in bacteria. Thus, most eukaryotes require an external source of B12 , and yet the vitamin appears to have only two functions in eukaryotes: as a cofactor for the enzymes methionine synthase and methylmalonylCoA mutase. These two functions are crucial for normal health in humans, and in particular, the formation of methionine is essential for providing methyl groups for over 100 methylation processes. Interference with the methionine synthase reaction not only depletes the body of methyl groups but also leads to the accumulation of homocysteine, a risk factor for many diseases...
2018: Advances in Food and Nutrition Research
https://www.readbyqxmd.com/read/29472265/does-early-vitamin-b-12-supplementation-improve-neurodevelopment-and-cognitive-function-in-childhood-and-into-school-age-a-study-protocol-for-extended-follow-ups-from-randomised-controlled-trials-in-india-and-tanzania
#14
Brita Askeland Winje, Ingrid Kvestad, Srinivasan Krishnamachari, Karim Manji, Sunita Taneja, David C Bellinger, Nita Bhandari, Shruti Bisht, Anne Marie Darling, Christopher P Duggan, Wafaie Fawzi, Mari Hysing, Tivendra Kumar, Anura V Kurpad, Christopher R Sudfeld, Erling Svensen, Susan Thomas, Tor A Strand
INTRODUCTION: As many as 250 million children under the age of 5 may not be reaching their full developmental potential partly due to poor nutrition during pregnancy and the first 2 years of life. Micronutrients, including vitamin B12 , are important for the development of brain structure and function; however, the timing, duration and severity of deficiencies may alter the impact on functional development outcomes. Consequently, to fully explore the effect of vitamin B12 on cognitive function, it is crucial to measure neurodevelopment at different ages, in different populations and with vitamin B12 supplementation at different times during the critical periods of neurodevelopment...
February 22, 2018: BMJ Open
https://www.readbyqxmd.com/read/29468754/prevalence-of-vitamin-b-12-deficiency-in-healthy-indian-school-going-adolescents-from-rural-and-urban-localities-and-its-relationship-with-various-anthropometric-indices-a-cross-sectional-study
#15
S Chakraborty, M Chopra, K Mani, A K Giri, P Banerjee, N S Sahni, A Siddhu, N Tandon, D Bharadwaj
BACKGROUND: Micronutrient deficiency is a global health burden, especially among developing countries. The present cross-sectional study aimed to determine the prevalence of vitamin B12 deficiency in healthy Indian school-going adolescents, based on area of residence, sex and body mass index (BMI). Furthermore, the relationship of serum B12 concentration with dietary vitamin B12 intake and anthropometric indices was assessed among adolescents from rural and urban India. METHODS: A total of 2403 school-going adolescents (11-17 years) from National Capital Region and rural areas of Haryana, India were selected...
February 22, 2018: Journal of Human Nutrition and Dietetics: the Official Journal of the British Dietetic Association
https://www.readbyqxmd.com/read/29450585/effect-of-isolated-vitamin-d-supplementation-on-bone-turnover-markers-in-younger-postmenopausal-women-a-randomized-double-blind-placebo-controlled-trial
#16
J Nahas-Neto, L M Cangussu, C L Orsatti, F N Bueloni-Dias, P F Poloni, E B Schmitt, E A P Nahas
Vitamin D (VD) plays an important role in bone mineralization. The present study investigates the effect of VD supplementation alone on bone turnover markers in younger postmenopausal women. It has been shown that VD supplementation in postmenopausal women with hypovitaminosis D is associated with a reduction in bone turnover markers. PURPOSE: The purpose of this study is to evaluate the effect of VD supplementation alone on bone turnover markers in younger postmenopausal women. METHODS: In this double-blind, placebo-controlled trial, 160 women were randomized into the VD group (supplementation with 1000 IU of vitamin D3/day, orally; n = 80) or placebo group (n = 80)...
February 15, 2018: Osteoporosis International
https://www.readbyqxmd.com/read/29407004/breast-milk-is-conditionally-perfect
#17
Miriam Erick
Breast milk is the universal preferred nutrition for the newborn human infant. New mother have been encouraged to exclusively breastfeed by health care professionals and consumer-advocacy forums for years, citing "breast milk is the perfect food". The benefits are numerous and include psychological, convenience, economical, ecological and nutritionally superior. Human milk is a composite of nutritional choices of the mother, commencing in the pre-conceptual era. Events influencing the eventual nutritional profile of breast milk for the neonate start with pre-conceptual dietary habits through pregnancy and finally to postpartum...
February 2018: Medical Hypotheses
https://www.readbyqxmd.com/read/29379542/clinical-and-immunological-effects-of-vitamin-d-supplementation-during-the-pollen-season-in-children-with-allergic-rhinitis
#18
Joanna Jerzyńska, Włodzimierz Stelmach, Błażej Rychlik, Paweł Majak, Daniela Podlecka, Katarzyna Woicka-Kolejwa, Iwona Stelmach
Introduction: Vitamin D deficiency has been proposed as a potential contributing factor in patients with allergic diseases. We compared the clinical and immunological effects of vitamin D supplementation to placebo during the pollen season in children with allergic rhinitis. Material and methods: Thirty-eight children aged 5-12, sensitive to grass pollen, participated in a prospective, randomized, double-blind, placebo-controlled trial. Children received either vitamin D 1000 IU daily supplementation or placebo...
January 2018: Archives of Medical Science: AMS
https://www.readbyqxmd.com/read/29378045/infant-serum-and-maternal-milk-vitamin-b-12-are-positively-correlated-in-kenyan-infant-mother-dyads-at-1-6-months-postpartum-irrespective-of-infant-feeding-practice
#19
Anne M Williams, Christine P Stewart, Setareh Shahab-Ferdows, Daniela Hampel, Marion Kiprotich, Beryl Achando, Audrie Lin, Clair A Null, Lindsay H Allen, Caroline J Chantry
Background: Vitamin B-12 is an essential nutrient required for many functions including DNA synthesis, erythropoiesis, and brain development. If maternal milk vitamin B-12 concentrations are low, infants may face elevated risks of deficiency when exclusively breastfed. Objective: We evaluated cross-sectional associations between infant serum vitamin B-12 concentrations and maternal milk vitamin B-12 concentrations at 1-6 mo postpartum among an unsupplemented population in rural western Kenya, and assessed biological demographic, and dietary characteristics associated with adequate infant serum vitamin B-12...
January 1, 2018: Journal of Nutrition
https://www.readbyqxmd.com/read/29349843/pregnancy-after-bariatric-surgery-maternal-and-fetal-outcomes-of-39-pregnancies-and-a-literature-review
#20
Maria Manuel Costa, Sandra Belo, Pedro Souteiro, João S Neves, Daniela Magalhães, Rita B Silva, Sofia C Oliveira, Paula Freitas, Ana Varela, Joana Queirós, Davide Carvalho
AIM: We aimed to evaluate the impact of bariatric surgery (BS) on maternal and fetal outcomes. METHODS: A retrospective, descriptive, observational study of 39 pregnant women who underwent BS in our institution between 2010 and 2014 was carried out. A sample of women who became pregnant after BS was evaluated, based on data concerning pregnancy, childbirth, and newborns. RESULTS: Of the 1182 patients who underwent BS at our institution during the study period, 1016 (85...
April 2018: Journal of Obstetrics and Gynaecology Research
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