Glyoxal formation by Fenton-induced degradation of carbohydrates and related compounds
作者:Paola Manini、Paola La Pietra、Lucia Panzella、Alessandra Napolitano、Marco d’Ischia
DOI:10.1016/j.carres.2006.03.027
日期:2006.8
analysis of glyoxal (1) formation from a range of monosaccharides and related compounds, to determine their potential role as sources of this alpha-oxoaldehyde in vivo. Substrates were reacted with the Fenton reagent (Fe(2+)/EDTA/H(2)O(2)) and the mixtures were analyzed by HPLC using the 6-hydroxy-2,4,5-triaminopyrimidine fluorimetric assay. The rank order of hexoses and their derivatives as glyoxal sources
在本文中,我们提供了从一系列单糖和相关化合物中乙二醛(1)形成的系统分析,以确定它们作为体内这种α-氧醛来源的潜在作用。使底物与Fenton试剂(Fe(2 +)/ EDTA / H(2)O(2))反应,并使用6-羟基-2,4,5-三氨基嘧啶荧光分析法通过HPLC分析混合物。已发现己糖及其衍生物作为乙二醛来源的等级顺序是果糖>葡萄糖=甘露糖=半乳糖>葡萄糖-6-磷酸酯>甘露醇。在戊糖组中,阿拉伯糖和核糖的产率更高,为1,其次是脱氧核糖及其腺嘌呤N-糖苷和核糖。在测试的底物中,三碳化合物,即甘油三糖和甘油,而不是3-磷酸甘油醛,是迄今为止最有效的1碳源。