Biochemical changes associated with folic acid deficiency and oestrogen treatment in the oviduct of the immature chick.
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A new method for the determination of urinary formiminoglutamic acid (FIGLU) using conventional electrophoresis at 200 to 500 v. on cellulose acetate strips is reported. Experience in 166 determinations on 137 patients shows the method to be a simple, practical, and apparently sensitive one for the determination of FIGLU in the urine. Results of the application of the measurement of urinary FIGLU with histidine loading as a test for folic acid deficiency are also reported.
Howell-Jolly bodies in erythroid precursors can be found in the marrow in a variety of diseases. More than 1% in the later erythroblasts is rarely found except in vitamin B(12) or folic acid deficiency states.Giant metamyelocytes are probably always the result of vitamin B(12) or folic acid deficiency. A distinction is drawn between the deficiency of, and therapeutic need for, vitamin B(12) and folic acid.