title: Effects of Institut Georges Lopez-1 and Celsior preservation solutions on liver graft injury.
abstract: OBJECTIVE
  To compare Institut Georges Lopez (IGL-1) and Celsior preservation solutions for hepatic endothelium relaxation and liver cold ischemia reperfusion injury (IRI).
  
  
  METHODS
  Two experimental models were used. In the first one, acetylcholine-induced endothelium-dependent relaxation (EDR) was measured in isolated ring preparations of rat hepatic arteries preserved or not in IGL-1 or Celsior solutions (24 h at 4 °C). To determine nitric oxide (NO) and cyclooxygenase EDR, hepatic arteries were incubated with L-NG-nitroarginine methyl ester (L-NAME), an inhibitor of endothelium nitric oxide synthase (eNOS), or with L-NAME plus indomethacin, an inhibitor of cyclooxygenase. In the second experiment, rat livers were cold-stored in IGL-1 or Celsior solutions for 24 h at 4 °C and then perfused "ex vivo" for 2 h at 37 °C. Liver injury was assessed by transaminase measurements, liver function by bile production and bromosulfophthalein clearance, oxidative stress by malondialdehyde levels and catalase activity and alterations in cell signaling pathways by pAkt, pAMPK, eNOS and MAPKs proteins level.
  
  
  RESULTS
  After cold storage for 24 h with either Celsior or IGL-1, EDR was only slightly altered. In freshly isolated arteries, EDR was exclusively mediated by NO. However, cold-stored arteries showed NO- and COX-dependent relaxation. The decrease in NO-dependent relaxation after cold storage was significantly more marked with Celsior. The second study indicated that IGL-1 solution obtained better liver preservation and protection against IRI than Celsior. Liver injury was reduced, function was improved and there was less oxidative stress. IGL-1 solution activated Akt and AMPK, which was concomitant with increased eNOS expression and nitrite/nitrate levels. Furthermore, MAPKs kinases were regulated in livers preserved with IGL-1 solution since reductions in p-p38, p-ERK and p-JNK protein levels were observed.
  
  
  CONCLUSIONS
  IGL-1 solution preserved NO-dependent relaxation better than Celsior storage solution and enhanced liver graft preservation.
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: Donia
authors.initials: D
authors.lastname: Tabka
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: Mohamed
authors.initials: M
authors.lastname: Bejaoui
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: James
authors.initials: J
authors.lastname: Javellaud
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: Joan
authors.initials: J
authors.lastname: Roselló-Catafau
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: Jean-Michel
authors.initials: JM
authors.lastname: Achard
authors.affiliation: Donia Tabka, Hassen Ben Abdennebi, Unité de recherche "Biologie et anthropologie moléculaire appliquées au développement et à la santé" (UR12ES11), University of Monastir, Faculty of Pharmacy, Monastir 5000, Tunisia.
authors.forename: Hassen Ben
authors.initials: HB
authors.lastname: Abdennebi
mesh_terms: D055372:AMP-Activated Protein Kinases / Q000378:metabolism; D000818:Animals; D050377:Cold Ischemia; D016861:Cyclooxygenase Inhibitors / Q000494:pharmacology; D019610:Cytoprotection; D004187:Disaccharides / Q000494:pharmacology; D004195:Disease Models, Animal; D004305:Dose-Response Relationship, Drug; D004573:Electrolytes / Q000494:pharmacology; D004730:Endothelium, Vascular / Q000187:drug effects* / Q000378:metabolism / Q000503:physiopathology; D005971:Glutamates / Q000494:pharmacology; D005978:Glutathione / Q000494:pharmacology; D006499:Hepatic Artery / Q000187:drug effects* / Q000378:metabolism / Q000503:physiopathology; D006639:Histidine / Q000494:pharmacology; D066298:In Vitro Techniques; D008099:Liver / Q000098:blood supply / Q000187:drug effects* / Q000378:metabolism; D016031:Liver Transplantation / Q000379:methods*; D008297:Male; D008353:Mannitol / Q000494:pharmacology; D020928:Mitogen-Activated Protein Kinases / Q000378:metabolism; D009569:Nitric Oxide / Q000378:metabolism; D052250:Nitric Oxide Synthase Type III / Q000037:antagonists & inhibitors / Q000378:metabolism; D009926:Organ Preservation / Q000379:methods*; D019188:Organ Preservation Solutions / Q000494:pharmacology*; D018384:Oxidative Stress / Q000187:drug effects; D010766:Phosphorylation; D011451:Prostaglandin-Endoperoxide Synthases / Q000378:metabolism; D051057:Proto-Oncogene Proteins c-akt / Q000378:metabolism; D017207:Rats, Sprague-Dawley; D015427:Reperfusion Injury / Q000378:metabolism / Q000503:physiopathology / Q000517:prevention & control*; D015398:Signal Transduction / Q000187:drug effects; D013997:Time Factors; D014664:Vasodilation / Q000187:drug effects*; D014665:Vasodilator Agents / Q000494:pharmacology
chemical_list: C088453:Celsior; D016861:Cyclooxygenase Inhibitors; D004187:Disaccharides; D004573:Electrolytes; D005971:Glutamates; C504757:IGL-1 solution; D019188:Organ Preservation Solutions; D014665:Vasodilator Agents; D009569:Nitric Oxide; D008353:Mannitol; D006639:Histidine; D052250:Nitric Oxide Synthase Type III; C496316:Nos3 protein, rat; D011451:Prostaglandin-Endoperoxide Synthases; D051057:Proto-Oncogene Proteins c-akt; D020928:Mitogen-Activated Protein Kinases; D055372:AMP-Activated Protein Kinases; D005978:Glutathione
keywords: Celsior; Endothelium-dependent relaxing factors; Institut Georges Lopez solution; Nitric oxide; Organ preservation solutions; Reperfusion injury