Laboratory Investigation of Vitamin B 12 Deficiency
نویسندگان
چکیده
منابع مشابه
Nitrous oxide-induced vitamin B(12) deficiency.
Two patients with asymptomatic vitamin B(12) deficiency developed a peripheral neuropathy 6-7 weeks after exposure to nitrous oxide during general anaesthesia, and 3 and 11 days after receiving cyclophosphamide. The serum B(12) concentration was less than 20 pmol/l and the symptoms resolved after B(12) replacement. We believe that the neurological symptoms were triggered by exposure to nitrous ...
متن کامل[Neurological manifestations in Vitamin B 12 deficiency].
Vitamin B-12 deficiency is a common problem encountered in developing countries of the world. In Europe and North America it is frequently encountered in the elderly and in people whose diets are compromised such as alcoholics. Recent data has shown that cobalamin deficiency may occur in 5% to 40% of the general population. The prevalence as stated earlier is higher in the elderly and in nursin...
متن کاملSome metabolic aspects of vitamin B 12 deficiency in sheep.
I. Studies were made with pair-fed vitamin Blz-deficient and vitamin B12-treated or cobalt-treated ewes fed a Co-deficient diet in cages. Measurements were made of body-weight changes and some observations were made of energy and nitrogen metabolism. The effects of oral Co on energy and nitrogen metabolism were examined in sheep fed the Co-deficient diet, but not yet deficient of vitamin B,, in...
متن کاملAn effect of vitamin B 12 deficiency in tissue culture.
Rat glial cells were grown in tissue culture in vitamin BW deficient medium. As the intracellular level of coenzyme Bls decreased, the cells made increasing amounts of two unusual fatty acids. The fatty acids were unbranched acids with 15 and 17 carbon atoms and arose as the cells progressively lost the ability to metabolize propionic acid through the BIz-requiring methylmalonyl-CoA mutase reac...
متن کاملDiagnosing vitamin B-12 deficiency on the basis of serum B-12 assay.
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ژورنال
عنوان ژورنال: Laboratory Medicine
سال: 2006
ISSN: 0007-5027
DOI: 10.1309/cvhk-le2r-4w68-k2nq