Bupleurum polysaccharides attenuates lipopolysaccharide-induced inflammation via modulating Toll-like receptor 4 signaling
Model: Two-hit rat acute lung injury model, haemorrhagic shock to mean arterial pressure 45 +/- 5 mmHg for 1 hour then resuscitation with shed blood over 1 hour, followed by intratracheal lipopolysaccharide 0.2 mg/kg; in vitro peritoneal macrophages stimulated with lipopolysaccharide 1 micrograms/mL
Haemorrhagic shock plus intratracheal lipopolysaccharide raised serum carbon dioxide and caused severe pulmonary inflammation with neutrophil infiltration, oedema, haemorrhage and atelectasis, with strong alveolar TLR4 staining. Bupleurum polysaccharides at 5 and 10 mg/kg markedly reduced serum car…
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