지원사업
학술연구/단체지원/교육 등 연구자 활동을 지속하도록 DBpia가 지원하고 있어요.
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연구자들이 자신의 연구와 전문성을 널리 알리고, 새로운 협력의 기회를 만들 수 있는 네트워킹 공간이에요.
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The object of this study was to observe the effects of Scutellariae Radix (SR) aqueous extracts on lipopolysaccharide (LPS)-induced rat acute lung injury. Five different dosages of SR extracts were orally administered once a day for 28 days before LPS treatments, and then 5 hours after lipopolysaccharide treatment, all rats were sacrificed. 8 groups, each of 16 rats per group were used in the present study. Changes on the body weights, lung weights, pulmonary transcapillary albumin transit, arterial gas parameters (pH, $PaO_2$ and $PaCO_2$) bronchoalveolar lavage fluid (BALF) protein, lactate dehydrogenase (LDH) and proinflammatory cytokines tumor necrosis factor-${\alpha}$ (TNF-${\alpha}$), interleukin-1${\beta}$ (IL-1${\beta}$) contents, total cell numbers, neutrophil and alveolar macrophage ratios, lung malondialdehyde (MDA), myeloperoxidase (MPO), proinflammatory cytokine TNF-${\alpha}$ and IL-1${\beta}$ contents were observed with histopathology of the lung, changes on luminal surface of alveolus (LSA), thickness of alveolar septum, number of polymorphonuclear neutrophils (PMNs). The results were compared with a potent antioxidant ${\alpha}$-lipoic acid, 60 mg/kg, in which the effects on LPS-induced acute lung injury were already confirmed. The results obtained in this study suggest that over 125 mg/kg of SR extracts showed favorable effects on the LPS-induced acute lung injury, and 250 mg/kg of SR extracts resembling acute respiratory distress syndrome mediated by their antioxidant and anti-inflammatory effects and .as similar to ${\alpha}$-lipoic acid in the present study. Therefore, it is expected that SR will be showed favorable effects on the acute respiratory distress syndrome.
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