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The effects of delayed treatment with sialyl Lewis X against lipopolysaccharide-induced acute lung injury in rabbits

The therapeutic effects of a selectin inhibitor against lipopolysaccharide-induced acute lung injury were studied in rabbits by using sialyl Lewis X-oligosaccharide. Lipopolysaccharide-induced acute lung injury, as characterized by an impairment of pulmonary gas exchange, clinically resembles that o...

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Bibliographic Details
Published in:European journal of pharmacology 2000-03, Vol.392 (1), p.109-116
Main Authors: Hayashi, Hirotsugu, Koike, Haruhiko, Imanishi, Noriaki, Tojo, Shinichiro J
Format: Article
Language:English
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Summary:The therapeutic effects of a selectin inhibitor against lipopolysaccharide-induced acute lung injury were studied in rabbits by using sialyl Lewis X-oligosaccharide. Lipopolysaccharide-induced acute lung injury, as characterized by an impairment of pulmonary gas exchange, clinically resembles that of the acute respiratory distress syndrome. Delayed treatments with sialyl Lewis X-oligosaccharide (55 mg kg −1 i.v. bolus injection 0.5, 1 or 2 h after lipopolysaccharide administration+36 mg kg −1 h −1 i.v. infusion for 5.5, 5 or 4 h, respectively) prevented the lipopolysaccharide-induced impairments in pulmonary gas exchange, as well as the accumulation of polymorphonuclear leukocytes in the lung tissue. In contrast, this agent had no significant effects on lipopolysaccharide-induced systemic hypotension, the decrease in the number of circulating white blood cells and platelets or the decline in blood pH. This is the first demonstration that sialyl Lewis X-oligosaccharide is effective against the impairments in pulmonary gas exchange even if administered 0.5, 1 or 2 h following the lipopolysaccharide injection.
ISSN:0014-2999
1879-0712
DOI:10.1016/S0014-2999(00)00099-6