Biomarkers of cobalamin (vitamin B-12) status in the epidemiologic setting: a critical overview of context, applications, and performance characteristics of cobalamin, methylmalonic acid, and holotranscobalamin II

The use of Blood Concentrations of Vitamins and their Respective Functional Indicators to Define Folate and Vitamin B12 Status

(2015) Jacob Selhub et al.   FOOD AND NUTRITION BULLETIN

Circulating unmetabolized folic acid and 5-methyltetrahydrofolate in relation to anemia, macrocytosis, and cognitive test performance in American seniors

(2010) Martha Savaria Morris et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

Vitamin B12 deficiency in African American and white octogenarians and centenarians in Georgia

(2010) Mary Ann Johnson et al.   Journal of Nutrition Health & Aging

Does high folic acid intake affect unrecognized cobalamin deficiency, and how will we know it if we see it?

(2009) Ralph Carmel   AMERICAN JOURNAL OF CLINICAL NUTRITION

Folate–vitamin B-12 interaction in relation to cognitive impairment, anemia, and biochemical indicators of vitamin B-12 deficiency

(2009) Jacob Selhub et al.   AMERICAN JOURNAL OF CLINICAL NUTRITION

Genomic mutations associated with mild and severe deficiencies of transcobalamin I (haptocorrin) that cause mildly and severely low serum cobalamin levels

(2009) Ralph Carmel et al.   BRITISH JOURNAL OF HAEMATOLOGY

An IgG complexed form of vitamin B12 is a common cause of elevated serum concentrations

(2009) Jinny Jeffery et al.   CLINICAL BIOCHEMISTRY

Determinants of Plasma Methylmalonic Acid in a Large Population: Implications for Assessment of Vitamin B12 Status

(2009) A. Vogiatzoglou et al.   CLINICAL CHEMISTRY

Vitamin B12 Status, Methylmalonic Acidemia, and Bacterial Overgrowth in Short Bowel Syndrome

(2009) Timothy A Sentongo et al.   JOURNAL OF PEDIATRIC GASTROENTEROLOGY AND NUTRITION

How I treat cobalamin (vitamin B12) deficiency

(2008) R. Carmel   BLOOD

Effects of Delayed Sample Processing and Freezing on Serum Concentrations of Selected Nutritional Indicators

(2008) B. S. Drammeh et al.   CLINICAL CHEMISTRY

Active B12: A Rapid, Automated Assay for Holotranscobalamin on the Abbott AxSYM Analyzer

(2008) J. Brady et al.   CLINICAL CHEMISTRY

Common variants of FUT2 are associated with plasma vitamin B12 levels

(2008) Aditi Hazra et al.   NATURE GENETICS

Common Metabolic Profile in Infants Indicating Impaired Cobalamin Status Responds to Cobalamin Supplementation

(2008) A.-L. Bjorke-Monsen et al.   PEDIATRICS