Breast Milk Vitamin B-12 Concentrations in Guatemalan Women Are Correlated with Maternal but Not Infant Vitamin B-12 Status at 12 Months Postpartum
نویسندگان
چکیده
منابع مشابه
Vitamin B-12 supplementation during pregnancy and early lactation increases maternal, breast milk, and infant measures of vitamin B-12 status.
Pregnant women in resource-poor areas are at risk of multiple micronutrient deficiencies, and indicators of low vitamin B-12 status have been associated with adverse pregnancy outcomes, including anemia, low birth weight, and intrauterine growth retardation. To evaluate whether daily oral vitamin B-12 supplementation during pregnancy increases maternal and infant measures of vitamin B-12 status...
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BACKGROUND Because reference values for vitamin B(12) concentrations and vitamin B(12)-binding capacities for pregnant women have not been established, the reference values for nonpregnant women are often applied to assess vitamin B(12) status. The aim of the present study was to describe ranges of biochemical indices of vitamin B(12) status, including red blood cell (RBC) vitamin B(12), satura...
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V itamin 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 methi-onine by transfer of a methyl group from methyltet-rahydrofolate. This enzyme links the methylation pathway through synthesis of the methyl donor S-adenosyl methionine and the pathway in which purine and pyrim...
متن کاملVitamin B 12 : Are You Getting It ?
The overwhelming consensus in the mainstream nutrition community, as well as among vegan health professionals, is that plant foods do not provide vitamin B12. Despite this, some vegan advocates still believe that plant foods provide all the nutrients necessary for optimal health and, therefore, do not address vitamin B12 when promoting the vegan diet. Other vegan advocates acknowledge the need ...
متن کاملHolo-transcobalamin is an indicator of vitamin B-12 absorption in healthy adults with adequate vitamin B-12 status.
BACKGROUND It has been hypothesized that the response of holo-transcobalamin (holo-TC) to oral vitamin B-12 may be used to assess absorption. To develop a reliable clinical absorption test that uses holo-TC, it is necessary to determine the optimal timeline for vitamin B-12 administration and postdose assessment. OBJECTIVE The objective of this study was to assess the magnitude and patterns o...
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ژورنال
عنوان ژورنال: The Journal of Nutrition
سال: 2011
ISSN: 0022-3166,1541-6100
DOI: 10.3945/jn.111.143917