Serum folate and vitamin B12 levels in hypothyroid and hyperthyroid patients.

We measured the levels of serum folate and vitamin B12 in newly discovered hypothyroid (n =56) and hyperthyroid (n =47) patients and in age- and sex-matched control subjects (n =103). Except for one patient with latent pernicious anemia, serum folate and vitamin B12 levels did not differ greatly in our patients and in our control subjects. Another patient was receiving monthly injections of cyanocobalamin for previously diagnosed pernicious anemia. We conclude that abnormalities of thyroid function per se did not alter serum folate or vitamin B12 levels in our patients.
AuthorsR H Caplan, K Davis, B Bengston, M J Smith
JournalArchives of internal medicine (Arch Intern Med) Vol. 135 Issue 5 Pg. 701-4 (May 1975) ISSN: 0003-9926 [Print] UNITED STATES
PMID1052667 (Publication Type: Journal Article)
Chemical References
  • Folic Acid
  • Vitamin B 12
  • Adult
  • Aged
  • Anemia, Pernicious (blood)
  • Female
  • Folic Acid (blood)
  • Humans
  • Hyperthyroidism (blood)
  • Hypothyroidism (blood)
  • Male
  • Middle Aged
  • Vitamin B 12 (blood)

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