Role of riboflavin deficiency in malaria pathophysiology PLOS Pathogens Riboflavin Deficiency and Apoptosis: A Review The Journal of Nutrition Question: Riboflavin nutritional status is assessed by measurement of which of the following enzymes after addition of FAD in vitro? (A): Transketolase (B): Glutathione reductase (C): Transaminase (D): Transaldolase Let us know Elevated glutathione levels may reflect an accumulation resulting from impaired recycling, often due to deficiencies in NADPH, selenium, or riboflavin (vitamin B2). This indicates a disruption in the redox balance rather than Riboflavin Linus Pauling Institute Oregon State University