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Article Abstract
This study is to investigate the pharmacological effect and mechanism of action of hydroxysafflor yellow A (HSYA) on acute lung injury (ALI). The rat ALI was induced by oleic acid and lipopolysaccharide (LPS) injection. The incidence of acidosis, PaO2 (arterial blood oxygen pressure), W/D (wet weight/dry weight) and lung index (LI) were measured. Electron microscope and optical microscope were applied to observe lung morphological changes in rat. RT-PCR was used to determine TNF-alpha and ICAM-1 mRNA level. Inhibition effect of HSYA on plasma inflammatory cytokine expression was measured by ELISA. HSYA could alleviate pulmonary edema, reduce acidosis, keep PaO2 from descending, inhibit inflammatory cell infiltration, inhibit rat lung TNF-alpha and ICAM-1 mRNA expression and plasma IL-6 and IL-1beta level elevation. HSYA is an effective ingredient to remit ALI induced by oleic acid and LPS in rat.
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