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Vitamin B 12 Deficiency MeSH Descriptor Data 2022


MeSH Heading
Vitamin B 12 Deficiency
Tree Number(s)
C18.654.521.500.133.699.923
Unique ID
D014806
RDF Unique Identifier
http://id.nlm.nih.gov/mesh/D014806
Annotation
coord IM with specific B 12 vitamin /‌defic (IM)
Scope Note
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)
Entry Version
VITAMIN B 12 DEFIC
Entry Term(s)
Deficiency, Vitamin B 12
Deficiency, Vitamin B12
Vitamin B12 Deficiency
NLM Classification #
QU 194
Date Established
1966/01/01
Date of Entry
1999/01/01
Revision Date
2003/07/09
Vitamin B 12 Deficiency Preferred
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