"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".
This graph shows the total number of publications written about "Vitamin B 12 Deficiency" by people in this website by year, and whether "Vitamin B 12 Deficiency" was a major or minor topic of these publications.
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| Year | Major Topic | Minor Topic | Total |
|---|
| 2007 | 1 | 0 | 1 |
| 2008 | 1 | 0 | 1 |
| 2017 | 4 | 0 | 4 |
| 2018 | 10 | 2 | 12 |
| 2019 | 2 | 0 | 2 |
| 2021 | 1 | 1 | 2 |
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Below are the most recent publications written about "Vitamin B 12 Deficiency" by people in Profiles.
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A rise in cases of nitrous oxide abuse: neurological complications and biological findings. J Neurol. 2022 Feb; 269(2):577-582.
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Supplementation of the population during the COVID-19 pandemic with vitamins and micronutrients - how much evidence is needed? Swiss Med Wkly. 2021 05 10; 151:w20522.
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COVID-19: A methyl-group assault? Med Hypotheses. 2021 Apr; 149:110543.
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Excessive vitamin B12 and poor outcome in COVID-19 pneumonia. Nutr Metab Cardiovasc Dis. 2021 03 10; 31(3):774-775.
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COVID-19's toll on the elderly and those with diabetes mellitus - Is vitamin B12 deficiency an accomplice? Med Hypotheses. 2021 Jan; 146:110374.
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SARS-CoV-2: influence of phosphate and magnesium, moderated by vitamin D, on energy (ATP) metabolism and on severity of COVID-19. Am J Physiol Endocrinol Metab. 2021 01 01; 320(1):E2-E6.
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Fatal Covid-19 in a Malnourished Child with Megaloblastic Anemia. Indian J Pediatr. 2020 09; 87(9):757-758.
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COVID-19 and inflammatory bowel disease: questions arising from patient care and follow-up during the initial phase of the pandemic (February-April 2020). Gastroenterol Hepatol. 2020 Aug - Sep; 43(7):408-413.
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Characteristics of patients with vitamin B12-responsive neuropathy: a case series with systematic repeated electrophysiological assessment. Neurol Res. 2019 Jun; 41(6):569-576.
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Imerslund-Gräsbeck Syndrome in an Infant with a Novel Intronic Variant in the AMN Gene: A Case Report. Int J Mol Sci. 2019 Jan 27; 20(3).