Results 11 to 20 of about 79,292,901 (294)

Vitamin B-12 and cognition in the elderly [PDF]

The American Journal of Clinical Nutrition, 2009
Vitamin B-12 deficiency is often associated with cognitive deficits. Here we review evidence that cognition in the elderly may also be adversely affected at concentrations of vitamin B-12 above the traditional cutoffs for deficiency. By using markers such as holotranscobalamin and methylmalonic acid, it has been found that cognition is associated with ...
Smith, A, Refsum, H
openaire   +3 more sources

Vitamin B-12. [PDF]

Adv Nutr, 2022
Sobczyńska-Malefora A, Smith AD.
europepmc   +3 more sources

Identification of differentially expressed proteins in vitamin B 12

Journal of the Practice of Cardiovascular Sciences, 2015
Background: Vitamin B 12 (cobalamin) is a water-soluble vitamin generally synthesized by microorganisms. Mammals cannot synthesize this vitamin but have evolved processes for absorption, transport and cellular uptake of this vitamin.
Swati Varshney, Nitin Bhardwaj, Trayambak Basak, Shantanu Sengupta   +3 more
doaj   +2 more sources

Cognitive and mood effects in healthy children during 12 weeks' supplementation with multi-vitamin/minerals [PDF]

, 2008
Adequate levels of vitamins and minerals are essential for optimal neural functioning. A high proportion of individuals, including children, suffer from deficiencies in one or more vitamins or minerals.
Kennedy, David O, Jackson, Philippa A, Robertson, Bernadette C, Defeyter, M.A., Greer, Joanna, Scholey, Andrew B, Jackson, Philippa, Jackson, P.A., Robertson, B.C., Buchanan, Tom, Scholey, Andrew, Haskell, Crystal F, Defeyter, Margaret Anne (Greta), Haskell, C.F., Kennedy, D.O., Scholey, A.B., Elliott, J.M., Tiplady, B., Defeyter, Margaret A, Haskell, Crystal, Kennedy, David, Elliott, Jade, Robertson, Bernadette, Buchanan, T., Tiplady, Brian, Greer, J., Elliott, Jade M   +26 more
core   +5 more sources

Vitamin B-12 and the Gastrointestinal Microbiome: A Systematic Review. [PDF]

Adv Nutr, 2022
Vitamin B-12 deficiency is a major public health problem affecting individuals across the lifespan, with known hematological, neurological, and obstetric consequences.
Guetterman HM, Huey SL, Knight R, Fox AM, Mehta S, Finkelstein JL.   +5 more
europepmc   +2 more sources

Vitamin B-12 and Perinatal Health. [PDF]

Adv Nutr, 2015
Vitamin B-12 deficiency (
Finkelstein JL, Layden AJ, Stover PJ.
europepmc   +4 more sources

Dietary Sources of Vitamin B-12 and Their Association with Vitamin B-12 Status Markers in Healthy Older Adults in the B-PROOF Study. [PDF]

Nutrients, 2015
Low vitamin B-12 concentrations are frequently observed among older adults. Malabsorption is hypothesized to be an important cause of vitamin B-12 inadequacy, but serum vitamin B-12 may also be differently affected by vitamin B-12 intake depending on ...
Brouwer-Brolsma EM, Dhonukshe-Rutten RA, van Wijngaarden JP, Zwaluw NL, Velde Nv, de Groot LC.   +5 more
europepmc   +3 more sources

Vitamin B-12 and Cognition in Children. [PDF]

Adv Nutr, 2016
Vitamin B-12 is essential for brain development, neural myelination, and cognitive function. Inadequate vitamin B-12 status during pregnancy and early childhood has been associated with adverse child health outcomes, including impaired cognitive development. However, the underlying mechanisms have not been elucidated.
Venkatramanan S, Armata IE, Strupp BJ, Finkelstein JL.   +3 more
europepmc   +4 more sources

Prevalence of vitamin B12 insufficiency during pregnancy and its effect on offspring birthweight: a systematic review and meta-analysis. [PDF]

, 2016
Background: Vitamin B-12 and folate are micronutrients essential for normal embryogenesis. Vitamin B-12 insufficiency in pregnancy is high in certain parts of the world, such as India, and although this has been linked to low birth weight (LBW) in these ...
Rafnsson, Snorri B., Kandala, Ngianga-Bakwin, Saravanan, Ponnusamy, Yajnik, Chittaranjan, Sukumar, Nithya, Rafnsson, Snorri B, Bhopal, Raj, Yajnik, Chittaranjan S., Rafnsson, Snorri, Yajnik, Chittaranjan S   +9 more
core   +1 more source

Vitamin B-12 [PDF]

Advances in Nutrition, 2010
Vitamin B-12 is a cofactor for 2 enzymes. In the cytoplasm, methionine synthase requires vitamin B-12 in the form of methylcobalamin and catalyzes the conversion of homocysteine to methionine by transfer of a methyl group from methyltetrahydrofolate. This enzyme links the methylation pathway through synthesis of the methyl donor S-adenosyl methionine ...
openaire   +2 more sources