Results 41 to 50 of about 39,843 (225)

Cobalamins and cobalamin-dependent enzymes in Candida utilis [PDF]

Journal of Bacteriology, 1979
Candida utilis has been shown to contain 4.7 pmol of cobalamin per g of wet cell paste. Purification of the cobalamin showed it to be a mixture of methylcobalamin and adenosylcobalamin. Two cobalamin-dependent enzyme systems have been found in the yeast: methylcobalamin-dependent methionine biosynthesis and leucine 2,3-aminomutase.
J M, Poston, B A, Hemmings
openaire   +2 more sources

Decreased cobalamin sensitivity and biological aging acceleration in the general population

The Journal of Nutrition, Health and Aging
Background: The evidence on the association between cobalamin (Cbl) and aging or relevant outcomes is limited and controversial. We aimed to investigate the relationships between cobalamin intake- and function-related biomarkers and biological aging ...
Fan Tang, Hongbin Qiu, Yan Liu, Junchen Guo, Zheming Huang, Shaohong Fang, Yiying Zhang, Shanjie Wang   +7 more
doaj   +1 more source

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. [PDF]

, 2018
BackgroundVitamin 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 ...
Achando, Beryl, Allen, Lindsay H, Chantry, Caroline J, Hampel, Daniela, Kiprotich, Marion, Lin, Audrie, Null, Clair A, Shahab-Ferdows, Setareh, Stewart, Christine P, Williams, Anne M   +9 more
core   +3 more sources

Prevalence of serum cobalamin and folate deficiency among children aged 6–59 months: A hospital-based cross-sectional study from Northern India

Journal of Family Medicine and Primary Care, 2022
Context: Cobalamin and folate are essential for the synthesis of nucleic acids and in the maintenance of myelin. They are required during the period of the rapid growth of infancy and childhood.
Surbhi Gupta, Partha Haldar, Archana Singh, Sumit Malhotra, Shashi Kant   +4 more
doaj   +1 more source

Transcobalamin C776G genotype modifies the association between vitamin B12 and homocysteine in older Hispanics. [PDF]

, 2010
Background/objectivesA common polymorphism, C776G, in the plasma B12 transport protein transcobalamin (TC), encodes for either proline or arginine at codon 259.
Allen, LH, Garrod, MG, Green, R, Haan, MN, Miller, JW   +4 more
core   +2 more sources

Transcriptomic and proteomic changes associated with cobalamin-dependent propionate production by the rumen bacterium Xylanibacter ruminicola

mSystems
Xylanibacter ruminicola is an abundant rumen bacterium that produces propionate in a cobalamin (vitamin B12)-dependent manner via the succinate pathway.
Sam C. Mahoney-Kurpe, Nikola Palevich, Dragana Gagic, Patrick J. Biggs, Peter M. Reid, Ianina Altshuler, Phillip B. Pope, Graeme T. Attwood, Christina D. Moon   +8 more
doaj   +1 more source

Fat digestibility is reduced in old cats with subnormal cobalamin concentrations

Journal of Nutritional Science, 2014
Fat digestibility is decreased in old cats for unknown reasons. Subclinical gastrointestinal diseases and pancreatic dysfunction, both related to ageing, can affect food digestibility.
Anna Salas, Carmen-Loreto Manuelian, Marta Garganté, Núria Sanchez, Sonia Fernández, Marco Compagnucci, Jose Joaquín Cerón, Isabelle Jeusette, Lluís Vilaseca, Celina Torre   +9 more
doaj   +1 more source

Genetic testing is necessary for correct diagnosis and treatment in patients with isolated methylmalonic aciduria: a case report

BMC Pediatrics, 2021
Background Isolated methylmalonic aciduria can be caused by pathogenic mutations in the gene for methylmalonyl-CoA mutase or in the genes encoding enzymes involved in the intracellular metabolism of cobalamin.
Katarína Brennerová, Martina Škopková, Mária Ostrožlíková, Jana Šaligová, Juraj Staník, Vladimír Bzdúch, Daniela Gašperíková   +6 more
doaj   +1 more source

Upper gastrointestinal symptoms in autoimmune gastritis. A cross-sectional study [PDF]

, 2017
Autoimmune gastritis is often suspected for its hematologic findings, and rarely the diagnosis is made for the presence of gastrointestinal symptoms. Aims of this cross-sectional study were to assess in a large cohort of patients affected by autoimmune ...
Annibale, Bruno, Carabotti, Marilia, Esposito, Gianluca, Lahner, Edith, Sacchi, MARIA CARLOTTA, Severi, Carola   +5 more
core   +2 more sources

Cobalamin deficiency resulting in a rare haematological disorder: a case report

Journal of Medical Case Reports, 2009
Introduction We present the case of a patient with a cobalamin deficiency resulting in pancytopaenia, emphasizing the importance to define, diagnose and treat cobalamin deficiency. Case presentation A 52-year-old man from the Democratic Republic of Congo
Chapuis Thomas M, Favrat Bernard, Bodenmann Patrick   +2 more
doaj   +1 more source