Results 1 to 10 of about 51,500 (320)

Review of cobalamin status and disorders of cobalamin metabolism in dogs

Journal of Veterinary Internal Medicine, 2020
Disorders of cobalamin (vitamin B12) metabolism are increasingly recognized in small animal medicine and have a variety of causes ranging from chronic gastrointestinal disease to hereditary defects in cobalamin metabolism.
Stefanie Kather, Niels Grützner, Peter H. Kook, Franziska Dengler, Romy M. Heilmann   +4 more
doaj   +2 more sources

Enhanced cobalamin biosynthesis in Ensifer adhaerens by regulation of key genes with gradient promoters

Synthetic and Systems Biotechnology, 2022
Cobalamin is an essential human vitamin widely used in the pharmaceutical, food, and feed additive industries and currently produced by bacteria or archaea. Ensifer adhaerens HY-1 is an industrial strain that also produces cobalamin.
Sha Xu, Zhiqiang Xiao, Shiqin Yu, Weizhu Zeng, Yongming Zhu, Jingwen Zhou   +5 more
doaj   +2 more sources

Associations Between Anorexia Nervosa Severity, Liver Dysfunction, and Cobalamin Serum Concentration [PDF]

Neuropsychiatric Disease and Treatment
Masatoshi Miyauchi,1,2 Taku Furuno,2,3 Makoto Kawase,1,2 Kanon Shinokawa,2 Nobuhiko Noguchi,1,2 Saki Hattori,2 Akira Suda,1,2 Toshihiro Misumi,4 Takeshi Asami2 1Psychiatric Center, Yokohama City University Medical Center, Yokohama, Kanagawa, Japan ...
Miyauchi M, Furuno T, Kawase M, Shinokawa K, Noguchi N, Hattori S, Suda A, Misumi T, Asami T   +8 more
doaj   +2 more sources

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

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   +2 more sources

Relationship between serum cobalamin concentration and endoscopic ileal appearance and histology in dogs with chronic inflammatory enteropathy

Journal of Veterinary Internal Medicine, 2022
Background It has not been determined whether ileal appearance differs among dogs with chronic inflammatory enteropathy (CIE) and different serum concentrations of cobalamin.
Eva M. Pérez‐Merino, Ignacio Cristóbal‐Verdejo, Francisco J. Duque‐Carrasco, Lorena Espadas‐González, Nieves Pastor‐Sirvent, Jesús M. Usón‐Casaús   +5 more
doaj   +2 more sources

Unveiling the significance of prokaryotic composition from ferromanganese crusts regarding the interlink between cobalt and vitamin B12 in deep-sea ecosystems [PDF]

Frontiers in Microbiology
The intricate relationship between prokaryotic vitamin B12 (cobalamin) producers and metazoans in deep-sea ecosystems, particularly within ferromanganese crusts and polymetallic nodules, is critical for understanding oceanic biogeochemical cycling of ...
Lilia Montoya, Elva Escobar-Briones
doaj   +2 more sources

Cobalamin Protection against Oxidative Stress in the Acidophilic Iron-oxidizing Bacterium Leptospirillum group II CF-1

Frontiers in Microbiology, 2016
Members of the genus Leptospirillum are aerobic iron-oxidizing bacteria belonging to the phylum Nitrospira. They are important members of microbial communities that catalyze the biomining of sulfidic ores, thereby solubilizing metal ions.
Gloria Paz Levicán, Alonso eFerrer, Javier eRivera, Claudia eZapata, Javiera eNorambuena, Alvaro eSandoval, Renato eChávez, Omar eOrellana   +7 more
doaj   +2 more sources

Microbial and Genetic Resources for Cobalamin (Vitamin B12) Biosynthesis: From Ecosystems to Industrial Biotechnology

International Journal of Molecular Sciences, 2021
Many microbial producers of coenzyme B12 family cofactors together with their metabolically interdependent pathways are comprehensively studied and successfully used both in natural ecosystems dominated by auxotrophs, including bacteria and mammals, and ...
L. Balabanova, L. Averianova, Maksim Marchenok, O. Son, L. Tekutyeva   +4 more
semanticscholar   +1 more source

Diagnostic and Therapeutic Perspectives Associated to Cobalamin-Dependent Metabolism and Transcobalamins’ Synthesis in Solid Cancers

Nutrients, 2022
Cobalamin or vitamin B12 (B12) is a cofactor for methionine synthase and methylmalonyl-CoA mutase, two enzymes implicated in key pathways for cell proliferation: methylation, purine synthesis, succinylation and ATP production. Ensuring these functions in
V. Lacombe, G. Lenaers, G. Urbanski
semanticscholar   +1 more source

Cobalamin Intake and Related Biomarkers: Examining Associations With Mortality Risk Among Adults With Type 2 Diabetes in NHANES.

Diabetes Care, 2021
OBJECTIVE Despite that periodical monitoring of cobalamin (vitamin B12) in metformin-treated patients with diabetes is recommended, cobalamin-associated mortality benefits or risks remain unclear.
Shanjie Wang, Ye Wang, Xin Wan, Junchen Guo, Yiying Zhang, M. Tian, S. Fang, Bo Yu   +7 more
semanticscholar   +1 more source