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Chinese Journal of Clinical Pharmacology and Therapeutics ›› 2019, Vol. 24 ›› Issue (11): 1256-1262.doi: 10.12092/j.issn.1009-2501.2019.11.007

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Effects of salidroside injection on pulmonary vascular permeability in rats with septic shock induced lung injury induced by lipopolysaccharide

CHEN Shaozhong, LIN Meise, CHENG Limin, ZHU Lele   

  1. Wenzhou Hospital of Traditional Chinese Medicine, Zhejiang University of Traditional Chinese Medicine, Wenzhou 325000, Zhejiang, China
  • Received:2019-08-14 Revised:2019-11-06 Online:2019-11-26 Published:2019-12-02

Abstract:

AIM: To investigate the effects of salidroside injection on pulmonary vascular permeability in rats with septic shock induced lung injury induced by lipopolysaccharide.  METHODS: Seventy-five Sprague-Dawley rats were randomly divided into control group, model group, positive control group, Sal-L group and Sal-H group. The control group did not receive any treatment. The model group was modeled by lipopolysaccharide, and the positive control group was modeled. After administration of 5 mg/kg dexamethasone, Sal-L group and Sal-H group were given 0.68 and 1.09 ng/kg salidroside injection, respectively. The lung histopathology and lung injury score (LIS) were compared, as well as lung wet/dry mass ratio (W/D), lung permeability index (LPI), Evans blue content in lung tissue, oxidative stress index [myeloperoxidase activity (MPO), malondialdehyde (MDA) , superoxide dismutase (SOD)], inflammation indicators [interleukin (IL)-1, IL-6, tumor necrosis factor-α (TNF-α), nuclear factor κB (NF-κB), phosphorylated NF-κB p65 (p-NF-κB p65), NF-κB inhibitor protein IκBa phosphorylated protein (p-IκBa)] expression. RESULTS:There were no abnormalities in the lungs of the control group; the general condition and the pathological changes in the lungs were observed in the model group, and the positive control group, the Sal-L group and the Sal-H group were improved to some extents compared with the model group. Compared with the model group, the LIS, W/D, and LPI in the Sal-L group and the Sal-H group were decreased in a dose-dependent manner (P<0.05). Compared with the model group, the content of Evans blue in the tissue in Sal-L group and Sal-H group decreased in a dose-dependent manner (P<0.05). Compared with the model group, the MPO and MDA in the Sal-L group and the Sal-H group decreased in a dose-dependent manner, and the SOD was dose-dependently elevated (P<0.05). Compared with the model group, IL-1, IL-6, TNF-α, NF-κB mRNA and p-NF-κB p65, p-IκBa protein in Sal-L group and Sal-H group was decreased in a dose-dependent manner (P<0.05). CONCLUSION: Salidroside injection can improve pulmonary vascular permeability and reduce pulmonary edema in rats with septic shock and lung injury. The mechanism may be related to anti-oxidative stress and inhibition of inflammatory response.

Key words: salidroside injection, lipopolysaccharide, septic shock, lung injury, pulmonary vascular permeability

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