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Iron-mediated free-radical formation of signaling lipids in a model system

机译:铁介导的信号脂质在模型系统中的自由基形成

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It has been shown using matrix-assisted laser desorption/ionization time-of-flight mass spectrometry (MALDI-TOF MS) and its combination with thin-layer chromatography (TLC) that the action of the ascorbate/Fe2+/H2O2 oxidizing system on cardiolipin and galactocerebroside results in the formation of phosphatidic acid (PA) and ceramide (Cer), respectively. These data, when combined with results obtained on radiolysis of similar substances, allowed the conclusion that the formation of PA and Cer occurs via an OH-induced fragmentation taking place in polar moiety of the starting substrates. (c) 2005 Elsevier Ireland Ltd. All rights reserved.
机译:使用基质辅助激光解吸/电离飞行时间质谱(MALDI-TOF MS)及其与薄层色谱(TLC)的组合已显示抗坏血酸盐/ Fe2 + / H2O2氧化系统对心磷脂的作用半乳糖苷和半乳糖苷分别形成磷脂酸(PA)和神经酰胺(Cer)。这些数据与通过类似物质的放射分解获得的结果相结合,得出的结论是,PA和Cer的形成是通过在起始底物的极性部分发生的OH诱导的断裂而发生的。 (c)2005 Elsevier Ireland Ltd.保留所有权利。

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