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B12 anemia

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https://www.readbyqxmd.com/read/29761147/efficacy-of-long-term-oral-vitamin-b12-supplementation-after-total-gastrectomy-results-from-a-prospective-study
#1
Joana Moleiro, Susana Mão de Ferro, Sara Ferreira, Miguel Serrano, Margarida Silveira, António Dias Pereira
Background/Objectives: Vitamin B12 (VB12) deficiency is a common complication after total gastrectomy which may be associated with megaloblastic anemia and potentially irreversible neurologic symptoms. Intramuscular supplementation of VB12 has been considered the standard treatment, although it is associated with high costs and patient discomfort. Patients/Methods: We performed a prospective uncontrolled study (ACTRN12614000107628) in order to evaluate the clinical and laboratory efficacy of long-term oral VB12 supplementation in patients submitted to total gastrectomy...
April 2018: GE Portuguese Journal of Gastroenterology
https://www.readbyqxmd.com/read/29746437/hematologic-findings-of-inherited-metabolic-disease-they-are-more-than-expected
#2
Ertan Sal, Idil Yenicesu, Ilyas Okur, Zuhre Kaya, Fatih S Ezgu, Ulker Kocak, Leyla Tumer, Turkiz Gursel, Alev Hasanoglu
Inherited metabolic diseases are pathologic conditions that generally develop as a result of impairment of the production or breakdown of protein, carbohydrate, and fatty acids. Early determination of hematological findings has a positive effect on the prognosis of metabolic diseases. Three hundred eighteen patients who were being followed-up within the previous 6 months at Department of Pediatric Nutrition and Metabolism, Gazi University, Turkey, were included in the study. The hematological findings were classified under 7 main groups: anemia of chronic disease, iron deficiency anemia, vitamin B12 deficiency anemia, hemophagocytosis, leukocytosis, and thrombocytosis...
May 9, 2018: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/29745746/ca-15-3-predicting-breast-cancer-relapse-beware-of-vitamin-b12-deficiency
#3
Elie El Rassy, Maya Al Ghor, Joseph Kattan
A sustained increase of cancer antigen 15-3 serum levels was found in a 54-year-old woman treated 2 years ago for early stage breast cancer, without any evidence of cancer recurrence. The patient thereafter developed severe megaloblastic anemia secondary to vitamin B12 deficiency. Supplementation with B12 to reverse the anemia led to the normalization of the cancer antigen 15-3 serum levels. As such, with the limited understanding of molecular biology, the integrative approach of clinical history, physical examination, and diagnostic imaging remain pivotal in the management of cancer patients...
May 10, 2018: Personalized Medicine
https://www.readbyqxmd.com/read/29743399/-successful-treatment-of-x-linked-sideroblastic-anemia-with-alas2-r452h-mutation-using-vitamin-b-6
#4
Toru Kawakami, Hideyuki Nakazawa, Fumihiro Kawakami, Shuji Matsuzawa, Yuriko Sudo, Hitoshi Sakai, Sayaka Nishina, Noriko Senoo, Yasushi Senoo, Michiharu Komatsu, Takeji Umemura, Tomomi Yamaguchi, Tomoki Kosho, Tohru Fujiwara, Hideo Harigae, Fumihiro Ishida
A 45-year-old man presented with fatigue and pain in the finger joints. Despite having a history of suspected sideroblastic anemia since the age of 18 years, he had not been followed up for years. Upon presentation, laboratory data revealed microcytic anemia and elevated serum ferritin levels. In addition, ringed sideroblasts were increased in the bone marrow. A liver biopsy revealed hemochromatosis and cirrhosis. Furthermore, genetic analysis revealed that he harbored the ALAS2 R452H mutation, leading to the diagnosis of X-linked sideroblastic anemia (XLSA)...
2018: [Rinshō Ketsueki] the Japanese Journal of Clinical Hematology
https://www.readbyqxmd.com/read/29741927/transcellular-transport-of-cobalamin-in-aortic-endothelial-cells
#5
Luciana Hannibal, Keerthana Bolisetty, Armend Axhemi, Patricia M DiBello, Edward V Quadros, Sergey Fedosov, Donald W Jacobsen
Cobalamin [Cbl (or B12 )] deficiency causes megaloblastic anemia and a variety of neuropathies. However, homeostatic mechanisms of cyanocobalamin (CNCbl) and other Cbls by vascular endothelial cells are poorly understood. Herein, we describe our investigation into whether cultured bovine aortic endothelial cells (BAECs) perform transcytosis of B12 , namely, the complex formed between serum transcobalamin and B12 , designated as holo-transcobalamin (holo-TC). We show that cultured BAECs endocytose [57 Co]-CNCbl-TC (source material) via the CD320 receptor...
May 9, 2018: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/29740582/anti-high-density-lipoprotein-antibodies-and-antioxidant-dysfunction-in-immune-driven-diseases
#6
Javier Rodríguez-Carrio, Lourdes Mozo, Patricia López, Elena Nikiphorou, Ana Suárez
Introduction: Impaired high-density lipoprotein (HDL) levels and antioxidant functionality of HDL, mainly attributed to a decreased paraoxonase-1 (PON1) functionality, have been described in autoimmune conditions. In this setting, a role for humoral response in cardiovascular disease is emerging. This study evaluates the role of immunoglobulin G (IgG) antibodies against HDL and disease-related autoantibodies on HDL dysfunction in immune-driven diseases. Methods: Serum IgG anti-HDL antibodies, PON1 activity, and total antioxidant capacity (TAC) were quantified in 381 patients with different immune-driven diseases [18 mixed connective tissue disease (MCTD), 35 primary Sjögren syndrome (pSS), 38 systemic sclerosis (SSc), 33 ANCA-associated vasculitis (AAV), 60 diabetes mellitus 1, 29 autoimmune B12 deficiency/pernicious anemia, 29 primary biliary cirrhosis, 46 IBD/Crohn, 54 IBD/UC, and 39 celiac disease (CD)] and 138 healthy controls...
2018: Frontiers in Medicine
https://www.readbyqxmd.com/read/29739088/thrombotic-microangiopathy-like-hemolysis-in-vitamin-b12-deficiency-related-macrocytic-anemia
#7
Masayoshi Yamanishi, Shigeru Koba, Takaaki Jo, Tohru Kotera, Shinsaku Imashuku
BACKGROUND: Hemolytic features in patients with pernicious anemia have not been emphasized. METHODS: Seven Japanese patients at 60 - 88 years of age with vitamin B12 deficiency-related hemolytic anemia were assessed. RESULTS: Serum vitamin B12 levels in these cases were 46 - 89 pg/mL (normal reference range: 233 - 914 pg/mL). Clinically, the patients presented with thrombotic microangiopathy (TMA)-like hemolytic features (including macrocytic anemia, schistocytes on blood smears, high serum lactate dehydrogenase, hyperbilirubinemia, and low serum haptoglobin)...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29716764/significantly-higher-frequencies-of-hemoglobin-iron-vitamin-b12-and-folic-acid-deficiencies-and-of-hyperhomocysteinemia-in-patients-with-behcet-s-disease
#8
Ying-Shiung Kuo, Julia Yu-Fong Chang, Yi-Ping Wang, Yang-Che Wu, Yu-Hsueh Wu, Andy Sun
BACKGROUND/PURPOSE: Behcet's disease (BD) patients may have one or more hematinic deficiencies. This study evaluated whether there were significantly higher frequencies of hemoglobin, iron, vitamin B12, and folic acid deficiencies and of hyperhomocysteinemia in BD patients. METHODS: The blood hemoglobin, iron, vitamin B12, folic acid, and homocysteine concentrations in 63 BD patients were measured and compared with the corresponding levels in 126 age- and sex-matched healthy control subjects...
April 28, 2018: Journal of the Formosan Medical Association, Taiwan Yi Zhi
https://www.readbyqxmd.com/read/29704448/establishment-of-new-complete-blood-count-reference-values-for-healthy-thai-adults
#9
P Wongkrajang, W Chinswangwatanakul, C Mokkhamakkun, N Chuangsuwanich, B Wesarachkitti, B Thaowto, S Laiwejpithaya, O Komkhum
INTRODUCTION: Laboratory reference ranges are essential for diagnostic orientation and treatment decision. As complete blood count parameters are influenced by various factors, including gender, geographic origin, and ethnic origin, it is important to establish specific hematologic reference values for specific populations. METHODS: This study was conducted at the Department of Clinical Pathology, Faculty of Medicine Siriraj Hospital, Mahidol University, Bangkok, Thailand...
April 28, 2018: International Journal of Laboratory Hematology
https://www.readbyqxmd.com/read/29698962/subacute-combined-degeneration-a-retrospective-study-of-68-cases-with-short-term-follow-up
#10
Jie Cao, Zhu-Yi Su, Sha-Bei Xu, Chen-Chen Liu
PURPOSE: The study aimed to analyze the clinical characteristics, laboratory test results, neuroimaging findings, and outcomes in patients diagnosed with subacute combined degeneration (SCD). MATERIALS AND METHODS: A total of 68 patients with SCD who had been appropriately treated for no less than 6 months were included in our study. Histories, results of routine blood tests, biochemical indices, serum vitamin B12 levels, and spinal magnetic resonance imaging (MRI) findings from the patients were studied and analyzed...
April 26, 2018: European Neurology
https://www.readbyqxmd.com/read/29669023/the-relevance-of-vitamin-and-iron-deficiency-in-patients-with-inflammatory-bowel-diseases-in-patients-of-the-swiss-ibd-cohort
#11
Matiar Madanchi, Stefania Fagagnini, Nicolas Fournier, Luc Biedermann, Jonas Zeitz, Edouard Battegay, Lukas Zimmerli, Stephan R Vavricka, Gerhard Rogler, Michael Scharl
Background andAims: Vitamin and iron deficiencies are common in patients with inflammatory bowel disease (IBD) as a result of chronic intestinal inflammation, increase in demand, or dietary restrictions. Here, we assessed the frequency of complications in relation to deficiency of iron, folate acid, and vitamin B12 in patients enrolled in the nationwide Swiss Inflammatory Bowel Disease Cohort Study (SIBDCS). Methods: A total of 2666 patients were included in the study, 1558 with Crohn's disease (CD) and 1108 with ulcerative colitis (UC)...
April 13, 2018: Inflammatory Bowel Diseases
https://www.readbyqxmd.com/read/29661593/-diagnostic-workup-in-front-of-an-atypical-non-hemolytic-anemia
#12
J Y Colin, G Vignon, P Mottaz, J Labrousse, F Carrere, P F Augereau, P Aucher, F Lellouche
The most potential causes of "non hemolytic" anemias are iron, folate or vitamin B12 deficiencies, severe renal impairment, endocrine diseases, inflammation and medullary disorders. In a non-exceptionnal way no cause is found, sometimes because of a wrong interpretation of analysis results and sometimes because of a little known etiology. The goal of this review is to point out analytical difficulties and to remember some rarer etiologies.
April 13, 2018: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/29611017/prevalence-of-nutritional-deficiencies-among-populations-of-newly-arriving-government-assisted-refugee-children-to-kitchener-waterloo-ontario-canada
#13
Carolyn Beukeboom, Neil Arya
This study examined the variation among ethnic populations in prevalence of anemia, vitamin D and B12 deficiencies among refugee children. A retrospective chart review of 388 government assisted refugee children ≤ 16 years of age, seen at the Refugee Health Clinic in Kitchener, Canada from January 2009 to December 2014 was conducted. Vitamin D levels were only collected until December 1st 2010 (116 children). 15.7% were anemic (25% < 5 years, 8.7% 5-11 years, and 18.3% 12-16 years old) with Somali children having the lowest hemoglobin levels compared to those from Iraq, Afghanistan and Myanmar...
April 2, 2018: Journal of Immigrant and Minority Health
https://www.readbyqxmd.com/read/29597190/vitamin-b12-deficiency-and-the-role-of-gender-a-cross-sectional-study-of-a-large-cohort
#14
Ili Margalit, Eytan Cohen, Elad Goldberg, Ilan Krause
BACKGROUND: Vitamin B12 deficiency is associated with hematological, neurological, and cardiovascular consequences. Epidemiologic data on these related illnesses indicate gender differences. METHODS: A cross-sectional study was designed to examine gender differences in vitamin B12 deficiency among a healthy population. Data from healthy individuals aged 18-65, who were provided with a routine medical evaluation during 2000-2014, were retrieved from the medical charts...
March 29, 2018: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/29579413/the-unusual-nutritional-and-toxin-related-underproduction-anemias-approaching-the-riddle-beyond-iron-cobalamin-and-folate
#15
Cristhiam Mauricio Rojas-Hernandez, Thein Hlaing Oo
"Anemias beyond iron, vitamin B12, and folate deficiencies" covers a wide array of everything which lies beyond commonly seen anemias caused by deficiencies of three micronutrients. Although anemias due to deficiencies of iron, B12, and folate are common in daily practice and account for at least one-third of anemia etiologies in older adults, it is not uncommon to encounter other nutritional and toxin-induced underproduction anemias. The combination of thorough clinical examination, careful peripheral blood smear review, and judicious selection of supporting laboratory studies is typically sufficient to make an assertive diagnosis of those cases...
February 2018: Discovery Medicine
https://www.readbyqxmd.com/read/29577819/comparison-of-the-efficacy-of-parenteral-and-oral-treatment-for-nutritional-vitamin-b12-deficiency-in-children
#16
Rabia Gönül Sezer, Handan Ayhan Akoğlu, Abdulkadir Bozaykut, Gül Nihal Özdemir
OBJECTIVE: Although, oral replacement for vitamin B12 deficiency has been proved to be effective in adults, it is mainly treated with parenteral therapy. There are only few studies on oral replacement therapy of vitamin B12 with children. Therefore, we aimed to compare the efficacy of oral treatment with intramuscular vitamin B12 injections in pediatric population. METHODS: Children with serum cobalamin concentrations less than 300 pg/mL, were treated either with the parenteral therapy or with oral vitamin B12...
March 24, 2018: Hematology (Amsterdam, Netherlands)
https://www.readbyqxmd.com/read/29532755/homocysteine-and-hyperhomocysteinaemia
#17
Bozidarka L Zaric, Milan Obradovic, Vladan Bajic, Mohamed A Haidara, Milos Jovanovic, Esma R Isenovic
Homocysteine (Hcy) is thiol group containing the amino acid, which naturally occurs in all humans. Hcy is degraded in the body through two metabolic pathways, while a minor part is excreted through kidneys. The chemical reactions that are necessary for degradation of Hcy require the presence of the folic acid, vitamins B6 and B12. Consequently, the level of the total Hcy in the serum is influenced by the presence or absence of these vitamins. An elevated level of the Hcy, hyperhomocysteinemia (HHcy) and homocystinuria are connected with occlusive artery disease, especially in the brain, the heart, and the kidney, in addition to venous thrombosis, chronic renal failure, megaloblastic anemia, osteoporosis, depression, Alzheimer's disease, pregnancy problems, and others...
March 12, 2018: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/29512626/iron-deficiency-and-hematinic-deficiencies-in-atrial-fibrillation-a-new-insight-into-comorbidities
#18
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/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
#19
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/29477223/vitamin-b-12
#20
REVIEW
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
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