"Vitamin B 12 Deficiency" is a descriptor in the National Library of Medicine's controlled vocabulary thesaurus,
MeSH (Medical Subject Headings). Descriptors are arranged in a hierarchical structure,
which enables searching at various levels of specificity.
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)
| Descriptor ID |
D014806
|
| MeSH Number(s) |
C18.654.521.500.133.699.923
|
| Concept/Terms |
Vitamin B 12 Deficiency- Vitamin B 12 Deficiency
- Vitamin B12 Deficiency
- Deficiency, Vitamin B12
- Deficiencies, Vitamin B12
- Vitamin B12 Deficiencies
- Deficiency, Vitamin B 12
|
Below are MeSH descriptors whose meaning is more general than "Vitamin B 12 Deficiency".
Below are MeSH descriptors whose meaning is more specific than "Vitamin B 12 Deficiency".
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| Year | Major Topic | Minor Topic | Total |
|---|
| 2003 | 0 | 1 | 1 |
| 2012 | 1 | 0 | 1 |
| 2013 | 1 | 0 | 1 |
| 2016 | 1 | 0 | 1 |
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