Results 71 to 80 of about 1,006,055 (252)

Oral vitamin B12 for patients suspected of subtle cobalamin deficiency: a multicentre pragmatic randomised controlled trial [PDF]

, 2011
BACKGROUND: Evidence regarding the effectiveness of oral vitamin B12 in patients with serum vitamin B12 levels between 125-200 pM/l is lacking. We compared the effectiveness of one-month oral vitamin B12 supplementation in patients with a subtle vitamin ...
Bernard Burnand, Bernard Favrat, François Verdon, Giuseppa Ali, Lilli Herzig, Olivier Boulat, Paul Vaucher, Thomas Bischoff   +7 more
core   +3 more sources

Helicobacter pylori and cobalamin deficiency

Clinical and Laboratory Haematology, 2006
We have read with interest Maktouf et al.’s letter about the etiological role of deficiencies of cobalamin or folate in megaloblastic anemia. In this large prospective series, they investigated 478 patients with megaloblastic changes in bone marrow smears and reported the demographic, biological and clinical findings in cobalamin-deficient patients and
Kürflat, Kaptan, Cengiz, Beyan, Ahmet, Ifran   +2 more
openaire   +2 more sources

Impact of fortifiers on donor milk nutrient composition: An experimental study

Journal of Parenteral and Enteral Nutrition, EarlyView.
Abstract Background Preterm infants frequently require human milk fortification to meet their unique nutrients requirements. How commercial fortifiers change essential macronutrients and micronutrients in donor human milk has not been well‐studied. Methods Our sampling frame included milk from approved United States milk bank donors (n = 400), measured
Kimberly Mansen, Hannah Sanders, Sarah N. Taylor, Raven Dunstan, Kiersten Israel‐Ballard, Maryanne T. Perrin   +5 more
wiley   +1 more source

The X‐Ray Crystal Structure of BorF, the Flavin Reductase Subunit of a Two‐Component Flavin‐Dependent Tryptophan Halogenase

Proteins: Structure, Function, and Bioinformatics, EarlyView.
ABSTRACT BorF is a short‐chain flavin reductase from a desert soil bacterium that uses NADH to reduce FAD to FADH2, which is used by the tryptophan‐6‐halogenase BorH to chlorinate tryptophan in the biosynthetic pathway of borregomycin A. The X‐ray crystal structure of BorF bound to FAD was solved to 2.37 Å by molecular replacement.
Zheng Ma, Emily W. Rady, Aravinda J. de Silva, John J. Bellizzi III   +3 more
wiley   +1 more source

Human gut Bacteroides capture vitamin B12 via cell surface-exposed lipoproteins. [PDF]

, 2018
Human gut Bacteroides use surface-exposed lipoproteins to bind and metabolize complex polysaccharides. Although vitamins and other nutrients are also essential for commensal fitness, much less is known about how commensal bacteria compete with each other
Barry, Natasha A, Degnan, Patrick H, Folta-Stogniew, Ewa, Goodman, Andrew L, Schofield, Whitman B, Wexler, Aaron G   +5 more
core  

Metabolic engineering of micronutrients in crop plants [PDF]

, 2016
Micronutrient deficiency is a widespread phenomenon, most prevalent in developing countries. Being causally linked to the occurrence of a range of diseases, it affects billions of people worldwide. Enhancing the content of micronutrients in crop products
Blancquaert, Dieter, De Steur, Hans, Gellynck, Xavier, Van Der Straeten, Dominique   +3 more
core   +2 more sources

Iron Physiology and Its Impact on Atopic Diseases: An EAACI Taskforce Report

Allergy, EarlyView.
ABSTRACT Iron is essential for oxygen transport, energy metabolism, and immune regulation. Yet iron deficiency is the most common micronutrient disorder across all age groups, affecting nearly one quarter of the global population. Iron deficiency triggers nutritional immunity, a host defense mechanism that withholds and redistributes iron, contributing
Franziska Roth‐Walter, Ioana Agache, Beatriz Cabanillas, Roberto Berni Canani, Pasquale Comberiati, Holger Garn, Cristina Gomez‐Casado, Karin Hufnagl, Ekaterina Khaleva, Gregorio P. Milani, Daniel Munblit, Nikolaos Douladiris, Liam O'Mahony, Frank Redegeld, Carmen Riggioni, Peter K. Smith, Betty van Esch, Emilia Vassilopoulou, Carina Venter, Diego G. Peroni   +19 more
wiley   +1 more source

Inherited Selective Intestinal Cobalamin Malabsorption and Cobalamin Deficiency in Dogs [PDF]

Pediatric Research, 1991
Inherited selective intestinal malabsorption of cobalamin (Cbl) was observed in a family of giant schnauzer dogs. Family studies and breeding experiments demonstrated simple autosomal recessive inheritance of this disease. Affected puppies exhibited chronic inappetence and failure to thrive beginning between 6 and 12 wk of age.
J C, Fyfe, U, Giger, C A, Hall, P F, Jezyk, S A, Klumpp, J S, Levine, D F, Patterson   +6 more
openaire   +2 more sources

H2‐dependent modulation of tetrahydromethanopterin S‐methyltransferase (Mtr complex) activity by the small protein MtrR in Methanosarcina mazei

The FEBS Journal, EarlyView.
Small protein MtrR is a regulator of the Mtr methyltransferase complex in Methanosarcina mazei. It binds specifically to the MtrA subunit and modulates Mtr activity in response to hydrogen (H2) availability. Deleting mtrR impairs growth in the presence but not absence of H2, indicating its role in directing methyl transfer toward an energy‐conserving ...
Tim Habenicht, Bjarne Hastedt, Liam Cassidy, Claudia Kießling, Andreas Tholey, Jan M. Schuller, Ruth A. Schmitz   +6 more
wiley   +1 more source

Cobalamin and iron deficiency still presents a challenge in hereditary hemorrhagic telangiectasia

Scientific Reports
Hereditary hemorrhagic telangiectasia (HHT) leads to fragile blood vessels, causing frequent bleeding and anemia. Treatment mainly addresses iron levels and substitution. Although cobalamin (vitamin B12) is routinely tested in chronic anemia, its role in
Marie Carolin Schleupner, Alexander Röth, Luise Adam, Nadia Sadok, Felicia Toppe, Antonia Klara Lakomek, Sami Wainwright, Noemi Voss, Lukas Boosfeld, Christina Kaiser, Julia Garvert, Stephan Lang, Urban Geisthoff, Freya Droege   +13 more
doaj   +1 more source