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- W3032421025 abstract "ObjectiveTo explore the effect of adipose-derived stem cells (ADSCs) on inflammatory factors in rats with lipopolysaccharide (LPS)-induced acute lung injury (ALI) and the possible mechanism of anti-inflammatory.MethodsSeventy male Sprague-Dawley (SD) rats were randomly divided into normal control group (n = 10), LPS model group (n = 30), and ADSCs intervention group (n = 30) by random number table. ALI model was reproduced by intraperitoneal injection of 8 mg/kg LPS, and the rats in ADSCs intervention group received tail vein injection of 300 μL ADSCs 30 minutes after the model reproduction, the samples of normal control group were harvested immediately without any intervention, and the specimens in remained two groups were taken at 6, 24, 72 hours respectively. Arterial partial pressure of oxygen (PaO2) and lactate level in femoral artery were determined. Enzyme-linked immunosorbent assay (ELISA) was used to detect the serum myeloperoxidase (MPO) and interleukin-10 (IL-10) in the blood of left ventricle. Lung wet/dry weight (W/D) ratio was detected by thoracotomy, and the pathological changes of lung tissue were observed under an optical microscope. Western Blot was used to detect the protein expression of nuclear factor-κB (NF-κB) in lung tissue of rats.ResultsCompared with the normal control group, the damage degree of lung tissue of LPS model group was significantly heavier from 6 hours, and lung W/D ratio, blood lactate, MPO, IL-10 and expression level of NF-κB in lung tissue were significantly increased respectively, while PaO2 was decreased significantly. Compared with LPS model group, the damage degree of lung tissue of ADSCs intervention group was significantly reduced from 6 hours, and lung W/D ratio, blood lactate, MPO, and NF-κB expression in lung tissue were significantly decreased, while PaO2 was increased significantly, and it became normal at 72 hours [lung W/D ratio: 5.33±0.29 vs. 5.77±0.42 at 6 hours, 5.14±0.46 vs. 5.43±0.38 at 72 hours; blood lactate (mmol/L): 3.6±1.0 vs. 5.7±1.1 at 6 hours, 3.1±1.0 vs. 3.8±1.2 at 72 hours; blood MPO (μg/L): 1.50±0.90 vs. 2.70±1.85 at 6 hours, 0.46±0.30 vs. 0.71±0.22 at 72 hours; NF-κB (gray value): 0.40±0.11 vs. 0.50±0.09 at 6 hours, 0.24±0.03 vs. 0.33±0.06; PaO2 (mmHg, 1 mmHg = 0.133 kPa): 78.0±4.1 vs. 74.5±3.2 at 6 hours, 89.3±9.4 vs. 81.9±3.4 at 72 hours; all P < 0.05]. The IL-10 level was significantly higher than that of LPS model group only at 24 hours (ng/L: 27.75±15.49 vs. 17.52±6.56, P < 0.05).ConclusionADSCs can effectively relieve the inflammatory response of ALI induced by LPS, probably by inhibiting the expressions of NF-κB and blocking the release of inflammatory cytokines.Key words: Acute lung injury; Adipose-derived stem cell; Lipopolysaccharide; Inflammatory factor; Nuclear factor-κB" @default.
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- W3032421025 date "2016-10-10" @default.
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- W3032421025 title "Effect of adipose-derived stem cells on inflammatory factors expression in rats with lipopolysaccharide-induced acute lung injury" @default.
- W3032421025 doi "https://doi.org/10.3760/cma.j.issn.2095-4352.2016.10.010" @default.
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