IN the course of experiments on the relationship of structure to biological activity in the folic acid series of growth factors, we have examined the benziminazole analogues of pteroic acid and of ...

In order to undergo pupation and emergence, the larva of Aedes œgypti L. is dependent on the presence of ‘folic acid’ in the medium1. The use of water-extracted yeast residue makes it ...

However, it has recently been reported that patients with folic acid deficiency in association with sprue respond hematologically to the oral administration of 25 microgm. of pteroylglutamic ...

THE discovery, isolation, synthesis and clinical use of a new member of the vitamin B complex called "pteroylglutamic acid" can be attributed to the combined efforts of many different investigative ...