title: Protective mechanism of Panax notoginseng saponins on rat hemorrhagic shock model in recovery stage.
abstract: To explore protective mechanism of Panax notoginseng saponins (PNS) on rat hemorrhagic shock model in recovery stage. 72 Wistar rats were selected and divided into control group, model group and PNS group with 24 rats in each group. 200 mg/kg PNS was injected intravenously at 60 min of hemorrhagic shock stage in PNS groups. Changes of endotoxin, MPO, IL-6, SOD, MDA and TNF α were observed at 30 and 120 min of recovery stage by ELISA; water content of lung and intestine was detected; HE staining was applied to observe morphological change of intestinal mucosa, kidney, liver and lung; western blot was used to detect intercellular adhesion molecule-1 (ICAM-1) level in lung tissue and intestine tissue. At 30 min and 120 min of recovery stage, MDA, MPO, endotoxin, TNF α and IL-6 levels significantly increased in model group compared with control group, however SOD level significantly decreased, the difference was statistically significant (P < 0.05); PNS dose-dependently decreased MDA, MPO, endotoxin, TNF α and IL-6 levels, and increased SOD level, which was statistically significant (P < 0.05); In results of water content detection, water content in lung tissue and intestine tissue was significantly higher than in control group, however, after being treated with PNS, the water content was significantly decreased; HE staining showed the morphologic change of lung tissue cells; Western blot showed that in lung tissue and intestine tissue, ICAM-1 level in model group was significantly higher than in control group, and it was lower in PNS group than in model group. PNS can increase SOD activity, decrease levels of MDA, endotoxin and MPO, decrease expression of TNF α and IL-6, and decrease water content in lung tissue and intestine tissue. Thus, PNS is protective to rat hemorrhagic shock model by anti oxidative stress and anti-inflammatory pathways, and ICAM-1 may play an important role in the mechanism.
authors.affiliation: Emergency and Intensive Care Center, The Third Xiangya Hospital of Central South University, NO. 138, Tongzipo Road, Yueluan District, Changsha, 410013, Hunan, China.
authors.forename: Huai-Zheng
authors.initials: HZ
authors.lastname: Liu
authors.forename: Zuo-Liang
authors.initials: ZL
authors.lastname: Liu
authors.forename: Shang-Ping
authors.initials: SP
authors.lastname: Zhao
authors.forename: Chuan-Zheng
authors.initials: CZ
authors.lastname: Sun
authors.forename: Ming-Shi
authors.initials: MS
authors.lastname: Yang
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D004731:Endotoxins / Q000097:blood; D004797:Enzyme-Linked Immunosorbent Assay; D018799:Intercellular Adhesion Molecule-1 / Q000378:metabolism; D015850:Interleukin-6 / Q000097:blood; D008168:Lung / Q000378:metabolism / Q000473:pathology; D008297:Male; D008315:Malondialdehyde / Q000097:blood; D053723:Panax notoginseng / Q000737:chemistry / Q000378:metabolism; D009195:Peroxidase / Q000097:blood; D020011:Protective Agents / Q000627:therapeutic use*; D051381:Rats; D017208:Rats, Wistar; D012503:Saponins / Q000627:therapeutic use*; D012771:Shock, Hemorrhagic / Q000188:drug therapy*; D013482:Superoxide Dismutase / Q000097:blood; D014409:Tumor Necrosis Factor-alpha / Q000097:blood
chemical_list: D004731:Endotoxins; D015850:Interleukin-6; D020011:Protective Agents; D012503:Saponins; D014409:Tumor Necrosis Factor-alpha; D018799:Intercellular Adhesion Molecule-1; D008315:Malondialdehyde; D009195:Peroxidase; D013482:Superoxide Dismutase