[en] Propofol has been reported to have antioxidant properties and to inhibit lipid peroxidation. In this study, we examined the ability of propofol to inhibit lipid peroxidation induced by three free radical systems (hydroxyl, ferryl, and oxo-ferryl radicals), and we compared the effect of propofol with that of vitamin E, an endogenous antioxidant. Lipid peroxidation was induced by exposing a linoleic acid emulsion to either water gamma radiation, a ferrous iron-ascorbate solution, or human hemoglobin, generating the hydroxyl, ferryl, and oxo-ferryl radicals, respectively. Each experiment was performed in triplicate with and without propofol or vitamin E at concentrations between 10(-5) and 10(-4) M. Lipid peroxidation was quantified by gas chromatography measurement of the pentane released (nmoles) from lipid decomposition. In each condition, a significant dose-response relationship was found between the release of pentane and the concentration of either propofol or vitamin E. The antioxidant activities of both agents were similar but significantly higher against the hydroxyl than the ferryl and oxo-ferryl radicals. The study suggests that propofol could be beneficial as an anesthetic or sedative drug in patients presenting pathologies associated with free radical reactions.
Disciplines :
General & internal medicine
Author, co-author :
Hans, Pol ; Université de Liège - ULiège > Département des sciences cliniques > Anesthésie et réanimation
Deby, Christiane ; Centre Hospitalier Universitaire de Liège - CHU > Administration des patients - Admission des hospitalisés
Deby-Dupont, G.
Vrijens, Bernard ; Université de Liège - ULiège > Département de mathématique
Albert, Adelin ; Université de Liège - ULiège > Département des sciences de la santé publique > Informatique médicale et biostatistique
Lamy, Maurice ; Université de Liège - ULiège > Département des sciences cliniques > Anesthésie et réanimation
Language :
English
Title :
Effect of Propofol on in Vitro Lipid Peroxidation Induced by Different Free Radical Generating Systems: A Comparison with Vitamin E
Publication date :
April 1996
Journal title :
Journal of Neurosurgical Anesthesiology
ISSN :
0898-4921
eISSN :
1537-1921
Publisher :
Lippincott Williams & Wilkins, United States - Maryland
scite shows how a scientific paper has been cited by providing the context of the citation, a classification describing whether it supports, mentions, or contrasts the cited claim, and a label indicating in which section the citation was made.
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