Results 41 to 50 of about 18,162 (295)

Some Plant Food Products Present on the Polish Market Are a Source of Vitamin B12

Applied Sciences, 2021
Cyanocobalamin is the most widespread form of vitamin B12, which is sufficient for humans. Vitamin B12 is mainly found in animal products. However, supplementation does not have to be necessary because certain amounts of vitamin B12 are present in plant ...
Paulina Jedut, Dominik Szwajgier, Paweł Glibowski, Katarzyna Iłowiecka   +3 more
doaj   +1 more source

Measuring vitamin B-12 bioavailability with [13C]-cyanocobalamin in humans.

American Journal of Clinical Nutrition, 2020
BACKGROUND Vitamin B-12 deficiency is widespread in many parts of the world, affecting all age groups and increasing with age. It is primarily due to a low intake of animal source foods or malabsorption. The measurement of bioavailability of vitamin B-12
S. Devi, R. Pasanna, Z. Shamshuddin, K. Bhat, A. Sivadas, A. Mandal, A. Kurpad   +6 more
semanticscholar   +1 more source

Molecular Recognition Patterns between Vitamin B12 and Proteins Explored through STD-NMR and In Silico Studies

Foods, 2023
Ligand–receptor molecular recognition is the basis of biological processes. The Saturation Transfer Difference–NMR (STD–NMR) technique has been recently used to gain qualitative and quantitative information about physiological interactions at an atomic ...
Ruchira Ghosh, Donald S. Thomas, Jayashree Arcot   +2 more
doaj   +1 more source

Cyanocobalamin improves memory impairment via inhibition of necrosis and apoptosis of hippocampal cell death after transient global ischemia/reperfusion [PDF]

Iranian Journal of Basic Medical Sciences, 2021
Objective(s): Brain ischemia/reperfusion (I/R) causes irreversible damage, particularly in the hippocampus. Cyanocobalamin (CNCbl) is known to be crucial for the proper operation of the nervous system.
Hossein Khastar, Behzad Garmabi, Fatemeh Zare Mehrjerdi, Mohamad Taghi Rahimi, Nabi Shamsaei, Amir-Hossein Ali, Nilofar Khorsand, Mehdi Khaksari   +7 more
doaj   +1 more source

Pitfalls in the diagnostic evaluation of subacute combined degeneration [PDF]

, 2015
We report a case of a 43-year-old man presenting with a 2-week history of painless ascending sensory disturbances, suspected to be suffering from acute inflammatory polyneuropathy.
Linnebank, M, Müller, D, Tarnutzer, A A, Ulrich, A   +3 more
core   +1 more source

Gene identification for the cblD defect of vitamin B12 metabolism [PDF]

, 2008
Background Vitamin B12 (cobalamin) is an essential cofactor in several metabolic pathways. Intracellular conversion of cobalamin to its two coenzymes, adenosylcobalamin in mitochondria and methylcobalamin in the cytoplasm, is necessary for the ...
Baumgartner, M R, Coelho, D, Fowler, B, Lerner-Ellis, J P, Newbold, R F, Rosenblatt, D S, Stucki, M, Suormala, T   +7 more
core   +1 more source

A dodecylamine derivative of cyanocobalamin potently inhibits the activities of cobalamin-dependent methylmalonyl-CoA mutase and methionine synthase of Caenorhabditis elegans

FEBS Open Bio, 2014
In this study, we showed that cyanocobalamin dodecylamine, a ribose 5′-carbamate derivative of cyanocobalamin, was absorbed and accumulated to significant levels by Caenorhabditis elegans and was not further metabolized.
Tomohiro Bito, Yukinori Yabuta, Tsuyoshi Ichiyanagi, Tsuyoshi Kawano, Fumio Watanabe   +4 more
doaj   +1 more source

The prospects for the use of vitamin B12 derivatives in pharmacology

Фармакоэкономика, 2023
Background. The structure of corrin tetrapyrrole macrocycles (compounds similar in structure to vitamin B12) is a kind of universal chemical template for targeted drug delivery, and the development of chemical sensors and antidotes.Objective ...
I. Yu. Torshin, O. A. Gromova, L. A. Maiorova   +2 more
doaj   +1 more source

Microbiological method for determination of cyanocobalaminin in pharmaceutical formulation

Environment Conservation Journal, 2010
A simple and precise microbiological method has been developed for the quantitative estimation of Cyanocobalamin in pharmaceutical formulations. After employing different microorganisms for achieving best results, Escherichia coli 113-3 ATCC No.
Priyanka Rajvanshi, Hemant Kumar Pant, V. Rani   +2 more
doaj   +1 more source

Photolysis of methylcobalamin. Nature of the reactive excited state [PDF]

, 1993
Photolysis of methylcobalamin (Co(III)corrin(CH3)L + H2O + O2 â > Co(III)(H2O)L + H2CO + OH-) shows a pronounced wave-length dependence. It is suggested that the reactive excited state is of the ligand-to-ligand charge transfer (LLCT) type and involves ...
Kunkely, Horst, Vogler, Arnd
core   +1 more source