Effect of 4‐hydroxynonenal on phosphatidylethanolamine containing condensed monolayer and on its interaction with apolipoprotein A‐I
- 15 August 2005
- journal article
- Published by Wiley in FEBS Letters
- Vol. 579 (22) , 5074-5078
- https://doi.org/10.1016/j.febslet.2005.07.086
Abstract
4-Hydroxynonenal (4HNE), generated during polyunsaturated fatty acid oxidation, is present in atherosclerotic lesions. As 4HNE is able to react with phosphatidylethanolamine (PE), we investigated, using AC polarography, whether it may alter the physico-chemical state of a condensed PE-containing phospholipid monolayer and its interaction with apoA-I. The stability of a phospholipid monolayer relative to potential (around the potential of zero charge) is dependent on lipid composition (PE>PC>PE/PC). ApoA-I insertion into PE/PC monolayer is easier than in PC monolayer. Pre-treatment of PE/PC monolayer by 4HNE does not alter monolayer stability, but decreases apo A-I insertion into the monolayer.Keywords
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