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Lazaroid U74389G ameliorates ischemia-reperfusion injury in the rat lung transplant model.

Abstract
We investigated the effect of Lazaroid U74389G on ischemia-reperfusion injury in the rat orthotopic left lung transplantation model. Five groups of reperfused lungs were studied. In group I, donor lungs were transplanted after 12 hours of preservation in University of Wisconsin (UW) solution at 4C. In groups II, III, and IV, Lazaroid was intravenously administrated at a dose of 1 mg/kg, 8 mg/kg, and 15 mg/kg, respectively, to the donors 30 minutes before preservation and also to the recipients 30 minutes before reperfusion after 12 hours of storage in UW solution at 4C. In group V, Lazaroid was added to the UW solution (80 micromol/l), and also was administered intravenously (6 mg/kg) 30 minutes before reperfusion. After 1 hour of reperfusion, gas exchange function and tissue lipid peroxide levels were significantly improved in Lazaroid-treated groups III, and V compared with no treatment group I. Histologic damage was less severe in groups III, IV, and V than in group I. These findings suggest that Lazaroid U74389G ameliorates ischemia-reperfusion injury in the rat lung transplants by inhibiting lipid peroxidation, regardless of whether it is administrated intravenously or given as an additive to the preservation solution.
AuthorsK Kuwaki, K Komatsu, H Sohma, T Abe
JournalAnnals of thoracic and cardiovascular surgery : official journal of the Association of Thoracic and Cardiovascular Surgeons of Asia (Ann Thorac Cardiovasc Surg) Vol. 5 Issue 1 Pg. 11-7 (Feb 1999) ISSN: 1341-1098 [Print] Japan
PMID10074562 (Publication Type: Journal Article)
Chemical References
  • Antioxidants
  • Pregnatrienes
  • U 74389F
  • Malondialdehyde
Topics
  • Analysis of Variance
  • Animals
  • Antioxidants (pharmacology)
  • Body Water (metabolism)
  • Lipid Peroxidation
  • Lung Transplantation (physiology)
  • Male
  • Malondialdehyde (analysis)
  • Organ Preservation
  • Pregnatrienes (pharmacology)
  • Pulmonary Gas Exchange
  • Rats
  • Rats, Inbred Lew
  • Reperfusion Injury (physiopathology, prevention & control)
  • Statistics, Nonparametric

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