Flavin catabolites: identification and quantitation in human urine
1987
Chastain, J.L. | McCormick, D.B.
Extract: Riboflavin is the primary flavin excreted in human urine but significant amounts of 7alpha-hydroxyriboflavin and lesser amounts of 8alpha-hydroxyriboflavin are present and reflect tissue microsomal oxidations. A newly found flavin catabolite of an 8alpha-sulfonyl type may reflect intake and/or turnover of such thioether-linked flavin as occurs in monoamine oxidase. Additionally, lesser amounts of 10-hydroxyethylflavin (indicative of intestinal microbial action on the vitamin) and traces of lumiflavin (arising from photodecomposition) constitute part of the remaining flavin, which acutely reflects level of intake. (author)
اظهر المزيد [+] اقل [-]الكلمات المفتاحية الخاصة بالمكنز الزراعي (أجروفوك)
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