This research was designed to evaluate the effectiveness of fortified flour on micronutrient status in poor rural adult women. A total of 4,700 farmers as the intervention group were supplied with multi-nutrient fortified wheat flour for three years, while 2750 farmers as the control group were supplied with unfortified wheat flour. Wheat flour was fortified with vitamins A, B-1, B-2, niacin, f...

Interesthas developed recently (l-3) in the significance of the free protoporphyrin which van den Bergh and Hyman (4) reported in 1928 as being present in human erythrocytes. This “erythrocyte protoporphyrin” (EP) is identical with the protoporphyrin which, in combination with iron and globin, forms hemoglobin (1, 5). An increase in the quantity of free EP has been observed in immature erythroc...

Interesthas developed recently (l-3) in the significance of the free protoporphyrin which van den Bergh and Hyman (4) reported in 1928 as being present in human erythrocytes. This “erythrocyte protoporphyrin” (EP) is identical with the protoporphyrin which, in combination with iron and globin, forms hemoglobin (1, 5). An increase in the quantity of free EP has been observed in immature erythroc...

Vitamin A deficiency produces anemia and altered iron status. In this study with rats we tested two hypotheses regarding vitamin A deficiency: (1) that it impairs erythropoiesis, leading to an increased red cell turnover, and (2) that it inhibits the glycosylation of transferrin. Erythropoietic activity was assessed indirectly by determining the myeloid:erythroid ratio in bone marrow smears, th...

Immunoradiometric analysis has made it possible to measure ferritin reliably in serum. The determination is a sensitive means of assessing body iron because concentrations of ferritin closely parallel the body's reticuloendothelial iron stores. The information provided is similar to that obtained from bone-marrow aspirates or biopsies stained for iron with Prussian Blue. Comparative studies ind...

OBJECTIVE To evaluate lead exposure among lead-acid battery workers in Korea, to evaluate in more detail the erythrocyte pyrimidine 5'-nucleotidase (P5N) test for lead exposure, and to evaluate the abnormal accumulation of erythrocyte pyrimidine nucleotides in the battery workers. METHODS Activity of P5N and other biological variables were examined in 66 exposed workers in a lead-acid battery...

Riboflavin and protoporphyrin IX are two molecules that participate in oxidation and reduction reactions in the living cell. Changing some functional groups of riboflavin and protoporphyrin IX can provide compounds with self-assembled monolayer properties with wide applications in designing the molecular electronic devices. In this study, the amphiphilic structure of riboflavin and protopor...