Department of Chemistry, Faculty of Mathematics and Natural Science, Universitas Indonesia, Depok 16424, Indonesia.

摘要

The aim of this study was to investigate the anti-in?ammatory activities of tetramethylpyrazine (TMP) in the mice model of acute lung injury/acute respiratory distress syndrome (ALI/ARDS) induced by oleic acid (0.15 ml/kg, intravenous (i.v.)). We report here that TMP (given at 160 mg/kg intraperitoneal (i.p.)) exerts potent anti-in?ammatory effects in this model. After 4, 8 and 12 h, animal model reaction was observed and bronchoalveolar lavage fluid was obtained to measure proinflammatory cytokines (tumor necrosis factor?a, interleukin 1β) and proteins by enzyme-linked immunosorbent assay and bicinchoninic acid protein assay kit, respectively. The protein expression of NF-kB in the lung was measured by immunohistochemistry and Western blotting. The results showed an increase in tumor necrosis factor?a?and interleukin 1β in the ALI/ARDS rat models. The activation of NF-kB was suppressed by TMP in the ALI/ARDS rats. The suppression of those molecules is controlled by NF-kB. These ?ndings support the hypothesis that TMP inhibits the in?ammatory process in the lung tissue through the suppression of NF-kB activation. Nevertheless, further investigations are required to determine the potential clinical usefulness of TMP in the adjunctive therapy for ARDS.