抄録
On 90 boys at the age of from 8 to 13 years, a signifficant correlation was found between total riboflavin content in blood and the severity in ariboflavinosis, which was expressed numerically by marks according to the severity of such three cardinal signs of ariboflavinosis as angular stomatitis, cheilosis and lingual changes. Concerning the esterified forms of riboflavin in the blood of these children, conversion of FMN into FAD was found to be disturbed in the mild cases of ariboflavinosis, while, in the severe cases, a disturbance in conversion of free riboflavin into FMN was found simultaneously with the disturbed FMN→FAD conversion.
