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Vitamin B 12 Deficiency
Research News and Information
Definition of 'Vitamin B 12 Deficiency'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) |
Monday, March 22, 2010
[Severe vitamin B12 deficiency in infants breastfed by vegans]
17 Oct 2009
Weight loss and reduction of motor skills resulted in paediatric evaluation of a 10-month-old girl and a 12-month-old boy. Both children suffered form anaemia and delayed development due to vitamin B12 deficiency caused by strict maternal vegan diet ... Read more...
A short review of malabsorption and anemia.
5 Oct 2009
Anemia is a frequent finding in most diseases which cause malabsorption. The most frequent etiology is the combination of iron and vitamin B12 deficiency. Celiac disease is frequently diagnosed in patients referred for evaluation of iron deficiency ... Read more...
Oral manifestations of vitamin B12 deficiency: a case report.
30 Aug 2009
Megaloblastic anemias are a subgroup of macrocytic anemias, in which distinctive morphologic abnormalities occur in red cell precursors in bone marrow, namely megaloblastic erythropoiesis. Of the many causes of megaloblastic anemia, the most common ... Read more...
Latest indexed articles for 'Vitamin B 12 Deficiency'
These are the very latest articles for this heading:
- [Severe vitamin B12 deficiency in infants breastfed by vegans]
17 Oct 2009 - A short review of malabsorption and anemia.
5 Oct 2009 - Oral manifestations of vitamin B12 deficiency: a case report.
30 Aug 2009 - Congenital B12 deficiency following maternal gastric bypass.
30 Aug 2009 - [Vitamin B12 deficiency is prevalent and has serious sequelae]
30 Aug 2009 - From mild cognitive impairment to Alzheimer's disease - influence of homocysteine, vitamin B12 and folate on cognition over time: results from one-year follow-up.
29 Jun 2009 - [Severe microcytic anemia with megaloblastic changes in the bone marrow. A hematological paradoxon?]
29 Jun 2009 - Paralysis and pernicious anemia in a young woman.
29 Jun 2009 - cblC: advances in defining the MMACHC mutation spectrum.
29 Jun 2009 - Spectrum of mutations in MMACHC, allelic expression, and evidence for genotype-phenotype correlations.
29 Jun 2009 - Role of vitamin B12 in anemia in old age.
20 Jun 2009 - Reassessment of intrinsic factor and parietal cell autoantibodies in atrophic gastritis with respect to cobalamin deficiency.
31 May 2009 - Nutrigenetic determinants of neural tube defects in India.
30 May 2009 - Malarial anaemia and nitric oxide induced megaloblastic anaemia: a review on the causes of malarial anaemia.
30 May 2009 - Association of elevated homocysteine level and vitamin B12 deficiency with anemia in older adults.
9 May 2009 - [Megaloblastic-vitamin B12 deficiency anemia in childhood]
29 Apr 2009 - Cobalamin, folic acid, and homocysteine.
29 Apr 2009 - Studies of biomarker responses to intervention with vitamin B-12: a systematic review of randomized controlled trials.
27 Apr 2009 - The multi-faceted basis of vitamin B12 (cobalamin) neurotrophism in adult central nervous system: Lessons learned from its deficiency.
22 Apr 2009 - Relationships between low serum cobalamin concentrations and methlymalonic acidemia in cats.
19 Apr 2009
See a longer list of these articles.
Technical information about 'Vitamin B 12 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)
Descriptor UI: D014806
Alternative terms: Vitamin B 12 Deficiency; Vitamin B12 Deficiency; Deficiency, Vitamin B12; Deficiencies, Vitamin B12; Vitamin B12 Deficiencies; Deficiency, Vitamin B 12;
Allowable Qualifiers: blood; cerebrospinal fluid; chemically induced; classification; complications; congenital; diagnosis; diet therapy; drug therapy; economics; embryology; enzymology; ethnology; etiology; genetics; history; immunology; metabolism; microbiology; mortality; nursing; epidemiology; parasitology; pathology; physiopathology; prevention & control; psychology; radiography; radionuclide imaging; radiotherapy; rehabilitation; surgery; therapy; urine; veterinary; ultrasonography; virology;
Tree Number: C18.654.521.500.133.699.923;
Technical Notes: coord IM with specific B 12 vitamin /defic (IM); DF: VITAMIN B 12 DEFIC