Aging - vitamin b12 - 33146
Vitamin B12 - 69 of 266 subjects > 70 years of age had serum B12 <300 pmol/L and serum methylmalonic acid (MMA) ≥0.37 µmol/L or serum total homocysteine (tHcy) ≥15 µmol/L. 1 mg cyanocobalamin I.M. injections initially followed by 2 mg orally normalized MMA in 13 of 15 subjects. Additional folic acid 5 mg/d normalized tHcy in all but 1.
J Intern Med
1999
246
317-324
33146
1999
Summary
Interview
PubMed