Quantitation of lipid peroxidation products by gas chromatography-mass spectrometry.

Quantitation of lipid peroxidation products by gas chromatography-mass spectrometry.
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通过气相色谱-质谱法定量脂质过氧化产物。

DOI:
10.1016/0003-2697(86)90127-2
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发表时间:
1986
影响因子:
2.9
通讯作者:
Mitchell,JR
Mitchell,JR
中科院分区:
生物学4区
文献类型:
--
作者:
Hughes,H;Smith,CV;Tsokos-Kuhn,JO;Mitchell,JR

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已开发出一种定量肝总脂质中脂质过氧化产物的方法。脂质提取物被还原,随后用甲醇钠转甲基化。通过硅酸色谱分离羟基脂肪酸甲酯,并在通过气相色谱-质谱分析之前衍生成其三甲基甲硅烷基醚。使用相对于内标 15-羟基花生酸甲酯的选择离子监测技术对三种异构体 11-、12- 和 15-羟基二十碳烯酸 (HETE) 进行定量。在用四氯化碳 (2 ml/kg) 治疗的小鼠中,总肝脂质中的 HETE 水平比对照动物中的水平高 20 倍。用相同剂量的四氯化碳治疗的大鼠肝脂质中的 HETE 水平也升高(5 至 10 倍)。使用这种方法对亚细胞部分进行的研究表明,与从对照动物中分离的相比,从用四氯化碳处理的大鼠中分离出的肝质膜囊泡中的这些脂质过氧化产物高出 5 至 6 倍。
A method for the quantitation of lipid peroxidation products in total hepatic lipid has been developed. Lipid extracts are reduced and subsequently transmethylated with sodium methoxide. The hydroxy fatty acid methyl esters are isolated by silicic acid chromatography and derivatized to their trimethylsilyl ethers prior to analysis by gas chromatography-mass spectrometry. Three isomers, 11-, 12-, and 15-hydroxyeicosateraenoic acid (HETE), are quantitated using selected ion monitoring techniques relative to the internal standard, methyl 15-hydroxyarachidate. In mice treated with carbon tetrachloride (2 ml/kg), the HETE levels in total hepatic lipid were 20-fold greater than those found in control animals. HETE levels were also elevated (5- to 10-fold) in hepatic lipid from rats treated with the same dose of carbon tetrachloride. Studies on subcellular fractions with this methodology show that these lipid peroxidation products are 5- to 6-fold higher in hepatic plasma membrane vesicles isolated from rats treated with carbon tetrachloride when compared with those isolated from control animals.
DOI: --
发表时间: 1964
期刊: Biochemistry
影响因子: 2.9
作者:
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通讯作者: G. K. Ackers
DOI: 10.1016/0092-8674(80)90160-9
发表时间: 1980-01-01
期刊: CELL
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发表时间: 1983
期刊: FEBS Letters
影响因子: 3.5
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影响因子: 2.7
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DOI: --
发表时间: 1980
影响因子: 2.7
作者:
H. Denis;B. Picard;M. le Maire;J. Clérot
通讯作者: J. Clérot