RESUMO
<p><b>OBJECTIVE</b>To observe the influence of Niupo Zhibao pellet (NZP) on transforming growth factor-beta1 (TGF-beta1) and its receptor's expression.</p><p><b>METHODS</b>Endotoxic shock model was established by intravenous injection of lipopolysaccharide (LPS) 1.5 mg/kg and intraperitoneal injection of D-galactosamine 100 mg/kg, and intervened by NZP, TGF-beta1 and its receptor's expression in lung tissue were detected by immunohistochemical method.</p><p><b>RESULTS</b>NZP could enhance the TGF-beta1 and its receptor's expression in endotoxic shock lung tissue, and reduce the injury of lung.</p><p><b>CONCLUSION</b>The mechanism of NZP in reducing endotoxic shock lung injury is possibly related with its effect in enhancing the TGF-beta1 and its receptor's expression in lung tissue.</p>