Methylmalonic acid excretion: an index of vitamin-B12 deficiency.
1962
E V COX, and
A M WHITE
UI
MeSH Term
Description
Entries
D008314
Malonates
Derivatives of malonic acid (the structural formula CH2(COOH)2), including its salts and esters.
D008764
Methylmalonic Acid
A malonic acid derivative which is a vital intermediate in the metabolism of fat and protein. Abnormalities in methylmalonic acid metabolism lead to methylmalonic aciduria. This metabolic disease is attributed to a block in the enzymatic conversion of methylmalonyl CoA to succinyl CoA.
Acid, Methylmalonic
D006801
Humans
Members of the species Homo sapiens.
Homo sapiens,Man (Taxonomy),Human,Man, Modern,Modern Man
D000740
Anemia
A reduction in the number of circulating ERYTHROCYTES or in the quantity of HEMOGLOBIN.
Anemias
D000748
Anemia, Macrocytic
Anemia characterized by larger than normal erythrocytes, increased mean corpuscular volume (MCV) and increased mean corpuscular hemoglobin (MCH).
A nutritional condition produced by a deficiency of VITAMIN B 12 in the diet, characterized by megaloblastic anemia. Since vitamin B 12 is not present in plants, humans have obtained their supply from animal products, from multivitamin supplements in the form of pills, and as additives to food preparations. A wide variety of neuropsychiatric abnormalities is also seen in vitamin B 12 deficiency and appears to be due to an undefined defect involving myelin synthesis. (From Cecil Textbook of Medicine, 19th ed, p848)