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Disease Vitamin B 12 Deficiency

Name Vitamin B 12 Deficiency
Synonyms Deficiencies, Vitamin B12 | Deficiency, Vitamin B12 | Deficiency, Vitamin B 12 | Vitamin B12 Deficiencies | Vitamin B12 Deficiency
Definition 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)
Categories Nutrition disorder
MeSH® ID D014806

Top ↑ Ancestors

DiseasesNutritional and Metabolic Diseases Has associated chemicals Has associated genes Has associated exposure references Nutrition Disorders Has associated chemicals Has associated genes Has associated exposure references Malnutrition Has associated chemicals Has associated genes Has associated exposure references Deficiency Diseases Has associated chemicals Has associated genes Has associated exposure references Avitaminosis Has associated chemicals Has associated genes Has associated exposure references Vitamin B Deficiency Has associated chemicals Has associated genes Has associated exposure references Vitamin B 12 Deficiency Has associated chemicals Has associated genes

Top ↑ Descendants

Vitamin B 12 Deficiency Has associated chemicals Has associated genes
View node Anemia, Pernicious Has associated chemicals Has associated genes
View node Imerslund-Grasbeck syndrome Has associated chemicals Has associated genes
  Methylmalonic acidemia with homocystinuria Has associated chemicals Has associated genes
  Subacute Combined Degeneration Has associated chemicals Has associated genes
  TRANSCOBALAMIN II DEFICIENCY Has associated chemicals Has associated genes
  VITAMIN B12 PLASMA LEVEL QUANTITATIVE TRAIT LOCUS 1 Has associated chemicals Has associated genes