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  • Title: Methylmalonic acidemia controlled with oral administration of vitamin B12.
    Author: Gordon BA, Carson RA.
    Journal: Can Med Assoc J; 1976 Aug 07; 115(3):233-6. PubMed ID: 953884.
    Abstract:
    A 3-month-old male infant had two episodes of fever, projectile vomiting, dehydration, generalized fine tremors and gross metabloic ketoacidosis. Methylmalonic acid was found in high concentration in both serum and urine, although the concentration of serum vitamin B12 was normal. A therapeutic trial of vitamin B12, administered parenterally, reduced greatly the methylmalonic aciduria. The patient has since been given vitamin B12 supplements continuously, initially 1 mg intramuscularly every other day, then 15 mg/d orally, and the protein in his diet was subsequently restricted. The most effected control of the methylmalonic aciduria was achieved with the combined regimen of oral vitamin therapy and dietary protein restriction. His physical and intellectual development have progressed normally and he has survived several acute respiratory tract infections without recurrence of metabolic acidosis.
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