The volatile anesthetic sevoflurane inhibits activation of neutrophil granulocytes during simulated extracorporeal circulation
Identifieur interne : 005818 ( Main/Exploration ); précédent : 005817; suivant : 005819The volatile anesthetic sevoflurane inhibits activation of neutrophil granulocytes during simulated extracorporeal circulation
Auteurs : Eckhard Schmid [Allemagne] ; Stefanie Krajewski [Allemagne] ; Daniel Bachmann [Allemagne] ; Julia Kurz [Allemagne] ; Hans Peter Wendel [Allemagne] ; Peter Rosenberger [Allemagne] ; Beverley Balkau [Australie, France] ; Karlheinz Peter [Australie] ; Klaus Unertl [Allemagne] ; Andreas Straub [Allemagne]Source :
- International immunopharmacology : (Print) [ 1567-5769 ] ; 2012.
Descripteurs français
- Pascal (Inist)
English descriptors
- KwdEn :
Abstract
Extracorporeal circulation (ECC) is an essential tool for the execution of cardiac operations. However, ECC is also associated with undesirable side effects. These include the induction of a systemic inflammatory response associated with leukocyte activation and cytokine release as well as potentially life-threatening complications. The volatile anesthetic sevoflurane has been reported to exert anti-ischemic and anti-inflammatory effects. We therefore investigated whether sevoflurane modulates the ECC-triggered inflammatory response. Heparinized human blood was circulated for 90 min in a normothermic (37 °C) ex vivo ECC circuit. An air-oxygen mixture was administered via an oxygenator in controls (n=5). Sevoflurane (2 vol.%) was added to the gas mixture in a second group (n = 5). At baseline and after 30, 60 and 90 min of ECC, blood samples were taken. In each sample whole blood counts were determined. Expression of the activation-indicating Mac-1 receptor on granulocytes and monocytes as well as leukocyte-platelet aggregate formation was measured in flow cytometry. Levels of the granulocyte activation marker PMN-elastase and of the cytokines IL-1β, IL-8 and TNF-α were analyzed using ELISA. ECC induced significant increases in Mac-1 expression on granulocytes (p<0.001) and PMN-elastase release (p<0.001). Sevoflurane decreased granulocyte Mac-1 expression during ECC (p<0.05) and inhibited the ECC-induced PMN-elastase release (p<0.05). Sevoflurane had no effect on whole blood cell counts, leukocyte-platelet aggregate formation and cytokine release during ECC. Sevoflurane inhibits granulocyte activation during ex vivo ECC and therefore has the potential to decrease the ECC-triggered inflammatory response. This promising finding warrants further investigation under clinical conditions.
Affiliations:
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Activation</term>
<term>General anesthetic</term>
<term>Granulocyte</term>
<term>Inflammation</term>
<term>Inhibitor</term>
<term>Neutrophil</term>
<term>Sevoflurane</term>
<term>Volatiles</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Matière volatile</term>
<term>Sévoflurane</term>
<term>Inhibiteur</term>
<term>Activation</term>
<term>Neutrophile</term>
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<front><div type="abstract" xml:lang="en">Extracorporeal circulation (ECC) is an essential tool for the execution of cardiac operations. However, ECC is also associated with undesirable side effects. These include the induction of a systemic inflammatory response associated with leukocyte activation and cytokine release as well as potentially life-threatening complications. The volatile anesthetic sevoflurane has been reported to exert anti-ischemic and anti-inflammatory effects. We therefore investigated whether sevoflurane modulates the ECC-triggered inflammatory response. Heparinized human blood was circulated for 90 min in a normothermic (37 °C) ex vivo ECC circuit. An air-oxygen mixture was administered via an oxygenator in controls (n=5). Sevoflurane (2 vol.%) was added to the gas mixture in a second group (n = 5). At baseline and after 30, 60 and 90 min of ECC, blood samples were taken. In each sample whole blood counts were determined. Expression of the activation-indicating Mac-1 receptor on granulocytes and monocytes as well as leukocyte-platelet aggregate formation was measured in flow cytometry. Levels of the granulocyte activation marker PMN-elastase and of the cytokines IL-1β, IL-8 and TNF-α were analyzed using ELISA. ECC induced significant increases in Mac-1 expression on granulocytes (p<0.001) and PMN-elastase release (p<0.001). Sevoflurane decreased granulocyte Mac-1 expression during ECC (p<0.05) and inhibited the ECC-induced PMN-elastase release (p<0.05). Sevoflurane had no effect on whole blood cell counts, leukocyte-platelet aggregate formation and cytokine release during ECC. Sevoflurane inhibits granulocyte activation during ex vivo ECC and therefore has the potential to decrease the ECC-triggered inflammatory response. This promising finding warrants further investigation under clinical conditions.</div>
</front>
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<name sortKey="Krajewski, Stefanie" sort="Krajewski, Stefanie" uniqKey="Krajewski S" first="Stefanie" last="Krajewski">Stefanie Krajewski</name>
<name sortKey="Kurz, Julia" sort="Kurz, Julia" uniqKey="Kurz J" first="Julia" last="Kurz">Julia Kurz</name>
<name sortKey="Rosenberger, Peter" sort="Rosenberger, Peter" uniqKey="Rosenberger P" first="Peter" last="Rosenberger">Peter Rosenberger</name>
<name sortKey="Straub, Andreas" sort="Straub, Andreas" uniqKey="Straub A" first="Andreas" last="Straub">Andreas Straub</name>
<name sortKey="Unertl, Klaus" sort="Unertl, Klaus" uniqKey="Unertl K" first="Klaus" last="Unertl">Klaus Unertl</name>
<name sortKey="Wendel, Hans Peter" sort="Wendel, Hans Peter" uniqKey="Wendel H" first="Hans Peter" last="Wendel">Hans Peter Wendel</name>
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<country name="Australie"><region name="Victoria (État)"><name sortKey="Balkau, Beverley" sort="Balkau, Beverley" uniqKey="Balkau B" first="Beverley" last="Balkau">Beverley Balkau</name>
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<name sortKey="Peter, Karlheinz" sort="Peter, Karlheinz" uniqKey="Peter K" first="Karlheinz" last="Peter">Karlheinz Peter</name>
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<country name="France"><noRegion><name sortKey="Balkau, Beverley" sort="Balkau, Beverley" uniqKey="Balkau B" first="Beverley" last="Balkau">Beverley Balkau</name>
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<name sortKey="Balkau, Beverley" sort="Balkau, Beverley" uniqKey="Balkau B" first="Beverley" last="Balkau">Beverley Balkau</name>
</country>
</tree>
</affiliations>
</record>
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