Riboflavin / Vitamin B2 Flashcards
who and when was riboflavin discovered
1917 by Kuhn
who discovered the structure of riboflavin
szewnt-gyorgyi and wagner-jaunergy
what are some excellent sources of riboflavin
plain greek yogurt, milk, almonds
what are some good sources of riboflavin
cottage cheese, portablla mushrooms, eggs
what is riboflavin deficiency called
ariboflavinosis
what are the s/s of riboflavin deficiency
chiolosis, angular stomatitis, glossitis, magenta tongue, red, bloody, swollen mouth, oculo-orogenital syndrome: neuropathy
who are the populations most at risk for ariboflavinosis
DM, trauma, stress, alcoholism, individuals with thyroid/adrenal disease, malabsorption diseases, taking diuretics.
how to measure the status of riboflavin
FAD-dependent enzymes: like erythrocyte gluthione reductase. URinary riboflavin excretion (<25ug/g creatinine or <40ug/day indicates deficiency)
what are the toxicity s/s for ariboflavinosis
trick question! there are none!
what is the reference range for riboflavin
1-19ug/L
what is the RDA for men for riboflavin
1.3mg/day
what is the RDA for women for riboflavin
1.1mg/day
what is the RDA for pregnant women for riboflavin
1.4mg/day
what is the RDA for lactating women for riboflavin
1.6mg/day
what is the TUL for riboflavin
trick question! there is none!
