1. Capillary electrokinetic chromatography for studying interactions between β-blockers and Intralipid emulsion.
- Author
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Ravald H, Jaikishan S, Samuelsson J, Sukhova A, Šolínová V, Fornstedt T, Kašička V, and Wiedmer SK
- Subjects
- Humans, Soybean Oil, Adrenergic beta-Antagonists, Chromatography, Fat Emulsions, Intravenous, Phospholipids
- Abstract
Toxicity of β-blockers is one of the most common causes of poison-induced cardiogenic shock throughout the world. Therefore, methodologies for in vivo removal of the drugs from the body have been under investigation. Intralipid emulsion (ILE) is a common commercial lipid emulsion used for parenteral nutrition, but it has also been administered to patients suffering from drug toxicities. In this work, a set of β-blockers of different hydrophobicity's (log K
D values ranging from 0.16 to 3.8) were investigated. The relative strength of the interactions between these compounds and the ILE was quantitatively assessed by means of binding constants and adsorption constants of the formed β-blocker-ILE complexes. The binding constants were determined by capillary electrokinetic chromatography and the adsorption constants were calculated based on different adsorption isotherms. Expectedly, the binding constants were strongly related to the log KD values of the β-blockers. The binding and adsorption constants also show that less hydrophobic β-blockers interact with ILE, suggesting that this emulsion could be useful for capturing such compounds in cases of their overdoses. Thus, the use of ILE for treatment of toxicities caused by a larger range of β-blockers is worth further investigation., Competing Interests: Declaration of Competing Interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Susanne Wiedmer reports financial support was provided by the Finnish Society of Sciences and Letters. Torgny Fornstedt reports financial support was provided by Swedish Knowledge Foundation. Vaclav Kasicka reports financial support was provided by the Czech Academy of Sciences. Jorgen Samuelsson reports financial support was provided by Swedish Knowledge Foundation., (Copyright © 2023 The Authors. Published by Elsevier B.V. All rights reserved.)- Published
- 2023
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