Serum Folate Activity and Urinary Formiminoglutamic Acid Following Histidine Load in Infants and Children

Abstract
Serum Lactobacillus casei folate activity and urinary formiminoglutamic acid (FIGLU) following an oral dose of L-histidine were estimated on 80 children and 14 infants. In children serum L. casei folate activity of less than 6.0 m/ml seemed to be suggestive of folic acid deficiency from view point of the urinary FIGLU test.