Results 131 to 140 of about 51,500 (320)

Uneven distribution of cobamide biosynthesis and dependence in bacteria predicted by comparative genomics. [PDF]

, 2019
The vitamin B12 family of cofactors known as cobamides are essential for a variety of microbial metabolisms. We used comparative genomics of 11,000 bacterial species to analyze the extent and distribution of cobamide production and use across bacteria ...
Haft, David R, Han, Andrew W, Jackson, Samantha N, Mok, Kenny C, Seth, Erica C, Shelton, Amanda N, Taga, Michiko E   +6 more
core   +1 more source

Heterologous High Level Expression, Purification, and Enzymological Properties of Recombinant Rat Cobalamin-dependent Methionine Synthase [PDF]

, 1999
Kazuhiro Yamada, Seiki Yamada, Takamasa Tobimatsu, Tetsuo Toraya   +3 more
openalex   +1 more source

Effects of High Levels of Enzyme Blend With Probiotic on Performance, Intestinal Morphology, Microbial Population, and Immune Response in Broiler Chickens

Veterinary Medicine and Science, Volume 12, Issue 1, January 2026.
High levels of enzyme blend (450 and 600 mg/kg) combined with probiotics improved growth performance and reduced coliform populations in broiler chickens, without affecting carcass traits, meat quality or immune response. These findings highlight the synergistic effects of enzymes and probiotics on gut health and productivity.2 ABSTRACT Background ...
Bahnaz Esmaeili, Mohsen Afsharmanesh, Mohammad Khajeh Bami   +2 more
wiley   +1 more source

Cobalamin [PDF]

Reactions Weekly, 2020
openaire   +2 more sources

Desensitization for Vitamin B12 Hypersensitivity and How to Do It

Biomedicines
Vitamin B12 is the common name for a group of cobalamins, which are cobalt corrines. Cobalamins are water-soluble B vitamins. Vitamin B12, as a coenzyme of various enzymes, is an essential component of many key metabolic processes in the body.
Kinga Lis
doaj   +1 more source

Homocysteine, Cobalamin and Folate Status and their Relations to Neurocognitive and Psychological Markers in Elderly in Northeastern of Iran [PDF]

Iranian Journal of Basic Medical Sciences, 2013
Objective(s): Incidence of neurocognitive and psychological disorders may be related to serum homocystein (Hcy), cobalamin (vitamin B12 ) and folate levels in old people. The aim of this study was to assess the relation between Hcy, cobalamin, folate and
Lida Manavifar, Habibollah Nemati Karimooy, jamshid Jamali, Morteza Talebi doluee, Abbas Shirdel, Amireh Nejat shokohi, Mahdie Fatemi nayyeri   +6 more
doaj  

Folacin, cobalamin, and hematological status during pregnancy in rural Kenya: the influence of parity, gestation, and Plasmodium falciparum malaria [PDF]

, 1986
Bernard J. Brabin, Henk van den Berg, F Nijmeyer   +2 more
openalex   +1 more source

Effects of AM/PM Feeding Regimen on Productive Performance, Egg Quality, Bone Properties, Blood Metabolites and Nutrient Utilization in the Aged Laying Hens

Veterinary Medicine and Science, Volume 12, Issue 1, January 2026.
The current study findings endorse the AM/PM‐FR (feeding a high protein, amino acids and phosphorus and low Ca diet in the morning on the contrary in the afternoon) as a favourable practice for egg producers, providing a cost‐efficient and resource‐effective approach to layer production.
Mina Toroghian, Heydar Zarghi, Hassan Kermanshhahi, Ali Javadmanesh   +3 more
wiley   +1 more source

The Effects of Source and Concentration of Digestible Methionine + Cystine in Diet on Productive Performance, Egg Quality Traits and Blood Metabolites in Commercial Laying Hens

Veterinary Medicine and Science, Volume 12, Issue 1, January 2026.
Hens fed diets with digestible Met + Cys levels equal to (0.742% of diet) or exceeding the strain recommendation (0.929%) exhibited higher egg production compared to 0.555% Met + Cys level. Approximately 0.929% dietary level of digestible Met + Cys enhanced egg mass, egg weight and daily feed intake, and improved feed conversion ratio.
Saeed Ghavi, Ahmad Hassanabadi, Heydar Zarghi   +2 more
wiley   +1 more source

Rapid Decolorization of Cobalamin

International Journal of Photoenergy, 2012
The photocatalytic decolorization of cobalamin was carried out in aqueous solution of different types of catalysts including ZnO, TiO2 (Degussa P25), TiO2 (Hombikat UV100), TiO2 (Millennium PC105), and TiO2 (Koronose 2073) by using UVA source of ...
Falah H. Hussein, Ahmed F. Halbus
doaj   +1 more source