ABSTRACT A 12-week study evaluated the activity coefficient of erythrocyte glutathione
reductase and urinary riboflavin as a measure of the riboflavin status in man during the …

The status of riboflavin nutriture in man has generally been estimated by using either
fluorometric (1-4) or microbiological(5-7) assay methods to measure the amount of riboflavin …

Glutathione reductase activity coefficients were measured on blood samples obtained from
431 Tennessee high school students as a means of evaluating their riboflavin nutritional …

Riboflavin status in 270 free-living and healthy elderly was determined from dietary intake (3-
day food records) and erythrocyte glutathione reductase activity coefficients (EGR-AC). High …

An adolescent population ranging in age from 13 to 19 years and of a low socioeconomic
status in New York City was surveyed for riboflavin deficiency. Deficiency was determined …

Red blood cell glutathione reductase activity, RBC riboflavin content and urinary excretion of
riboflavin were studied in relation to riboflavin nutritional status. The enzyme activity as well …

The riboflavin status in 651 pregnant women was determined by means of the erythrocyte
glutathione reductase activation test. Although there was no significant correlation between …

The total riboflavin in red blood cells, white blood cells and plasma, and the free plus FMN
riboflavin and FAD riboflavin in plasma were determined on one group of 10 men who had …

Studies of urinary excretion were made at levels of dietary intake of 0.55, 0.75, 0.85, 1.1, 1.6,
2.15, 2.55 and 3.55 mg per day. Data were recorded on 24-hour urine samples and on …

Riboflavin deficiency was found in 11 of 22 alcoholic patients who required hospitalization
for a number of complicating illnesses. The evidence of this deficiency was provided by …