Studies on Peroxidized Lipids. II. Fluorescent Products Relevant to Aging Pigments derived from Malondialdehyde and Methylamine
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概要
- 論文の詳細を見る
Malondialdehyde (MDA) is a secondary product of in vitro and in vivo lipid peroxidation. Reactions of MDA, prepared by acid hydrolysis of malonaldehyde bis (dimethylacetal), with methylamine were performed at 37°under various pH conditions (pH 1-8). Two major fluorescent compounds, 1,4-dimethyl-1,4-dihydropyridine-3,5-dialdehyde (1) and 1-methyl-4-(dimethoxyethyl)-1,4-dihydropyridine-3,5-dialdehyde (2), and two nonfluorescent UV-absorbing by-products, β-methylaminoacrolein (3) and 2,6-dimethyl-2,6-diazabicyclo [3.3.1] 3,7-nonadiene-4,8-dialdehyde (4), were isolated. The structures of these products were elucidated by analysis of their ^<13>C and ^1H NMR spectra, mass spectra and UV absorption spectra. Compounds 1 and 2 were produced in the best yields at pH 6-8,3 was produced at every pH, and 4 was produced at pH 2-5. The 1,4-dihydropyridine-3,5-dialdehyde fluorophore in 1 and 2 may have been formed via a Hantzsch-type reaction of MDA and methylamine. The fluorescence spectrum of 1 with a maximum at 460 nm was the same as that of a conjugated Schiff base of MDA and amino acid or those of aging or lipofuscin pigments accumulated in the cells.
- 公益社団法人日本薬学会の論文
- 1981-05-23
著者
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菊川 清見
Tokyo College of Pharmacy
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呉地 伝夫
Tokyo College of Pharmacy
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呉地 伝夫
東京薬科大学
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丸山 哲平
Tokyo College of Pharmacy
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町田 泰子
Tokyo College of Pharmacy
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