Thiocyantate metabolism in human vitamin B 12 deficiency.
نویسندگان
چکیده
منابع مشابه
[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 کاملNitrous 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 کاملThiocyanate metabolism in human vitamin B12 deficiency.
Patients with subacute combined degeneration who smoked had significantly lowered plasma thiocyanate levels than control smokers, but plasma thiocyanate levels in non-smoking patients with neurological disease due to vitamin B(12) deficiency were not significantly different from control values. The results provide no support for the hypothesis that chronic cyanide intoxication is responsible fo...
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 کاملVitamin B-12 and folate deficiency in elderly persons.
In May 2002, the Food Standards Agency in the United Kingdom decided against endorsing the recommendation of the Committee on Medical Aspects of Food and Nutrition Policy that universal folic acid fortification of flour be introduced to prevent neural tube defects, but the agency also indicated a willingness to reconsider the decision in the light of further evidence. In coming to its decision,...
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ژورنال
عنوان ژورنال: BMJ
سال: 1973
ISSN: 0959-8138,1468-5833
DOI: 10.1136/bmj.1.5854.675