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BACKGROUND The aim of this study was to evaluate the protective effects of sodium tanshinone IIA sulfonate (STS) on hemodynamic parameters, cytokine release, and multiple organ damage in an animal model of lipopolysaccharide (LPS)-induced endotoxemia. MATERIAL AND METHODS Twenty-four rabbits were randomly divided into 3 groups: control (n=8), LPS (n=8), and STS pretreatment + LPS (n=8) groups. With arterial invasive monitoring, hemodynamic variables were observed at 30 min before and at 0, 10, 20, 30, 60, 120, 180, 240, and 300 min after LPS injection. Circulatory inflammatory cytokines, including tumor necrosis factor-α (TNF-α) and interleukin-10 (IL-10), and relevant biochemical markers, including arterial partial pressure of oxygen (PaO2), plasma cardiac troponin I (cTnI), alanine aminotransferase (ALT), and creatinine (Cr), were measured at each time point. At the end of the experiment, all rabbits were sacrificed; histopathological examination of the heart, lung, liver, and kidney tissue was performed and organ injury was semi-quantitatively scored for each organ. RESULTS Mean arterial pressure (MAP) and heart rate (HR) significantly decreased within 30 min and again after 120 min following LPS injection. However, STS pretreatment gradually normalized MAP and HR after 120 min following LPS injection. In addition, STS ameliorated LPS-induced decrease of PaO2, LPS-induced increase of TNF-α, cTnI, and ALT, and enhanced LPS-induced increase of IL-10. Moreover, STS reduced heart, lung, and liver histopathologic injury. CONCLUSIONS STS can significantly stabilize LPS-induced hemodynamic deterioration, regulate inflammatory cytokine secretion, and protect heart, lung, and liver in rabbits.

Sodium Tanshinone IIA Sulfonate Improves Hemodynamic Parameters, Cytokine Release, and Multi-Organ Damage in Endotoxemia Rabbits