title: [Sodium tanshinone IIA sulfonate prevents postoperative peritoneal adhesions in rats by enhancing the activity of the peritoneal fibrinolytic system].
abstract: OBJECTIVE
  To evaluate the effect of sodium tanshinone IIA sulfonate (STS) in preventing postoperative peritoneal adhesions in rats and explore the mechanisms.
  
  
  METHODS
  Sixty SD rats were randomized into 4 equal groups, including a blank control group, adhesion model group, and high-, moderate-, and low-dose STS-treated groups, and were subjected to injuries of the parietal peritoneum and cecum to induce peritoneal adhesions, followed by intraperitoneal administration of saline and STS at the doses of 20, 10, and 5 mg/kg for 7 consecutive days, respectively. Another 15 untreated rats served as the blank control group. The adhesion scores in each group were recorded after the treatments; the activity of tissue-type plasminogen activator (tPA) in peritoneal lavage fluid was measured, tPA/PAI-1 protein ratio in the peritoneal tissue was determined by ELISA, and the expressions of TGF-β1 and collagen I were detected by immunohistochemistry. The anastomotic healing model was used to assess the impact of STS on wound healing.
  
  
  RESULTS
  Intraperitoneal administration of STS effectively prevented peritoneal adhesion without affecting anastomotic healing in the rats. Compared with the adhesion model group, the STS-treated groups showed increased peritoneal lavage fluid tPA activity and tPA/PAI-1 ratio in the ischemic tissues with lowered TGF-β1 and collagen I expressions in the ischemic tissues.
  
  
  CONCLUSIONS
  Intraperitoneal administration of STS can prevent peritoneal adhesion and enhance local fibrinolysis in rats, and these effects may be mediated by TGF-β signaling pathway.
authors.affiliation: Nanfang Hospital, Southern Medical University, Guangzhou 510515, China. E-mail: smulinsi@163.com.
authors.forename: Si
authors.initials: S
authors.lastname: Lin
authors.forename: Fei
authors.initials: F
authors.lastname: Qin
authors.forename: Lu-Yao
authors.initials: LY
authors.lastname: Song
authors.forename: Chu-Qi
authors.initials: CQ
authors.lastname: Hou
authors.forename: Lian-Bing
authors.initials: LB
authors.lastname: Hou
mesh_terms: D000818:Animals; D002432:Cecum / Q000293:injuries / Q000473:pathology; D024042:Collagen Type I / Q000378:metabolism; D005342:Fibrinolysis; D007274:Injections, Intraperitoneal; D010537:Peritoneum / Q000293:injuries / Q000473:pathology*; D010616:Phenanthrenes / Q000494:pharmacology*; D017395:Plasminogen Activator Inhibitor 1 / Q000378:metabolism; D011183:Postoperative Complications / Q000517:prevention & control; D051381:Rats; D017207:Rats, Sprague-Dawley; D000267:Tissue Adhesions / Q000517:prevention & control*; D010959:Tissue Plasminogen Activator / Q000378:metabolism; D053773:Transforming Growth Factor beta1 / Q000378:metabolism; D014945:Wound Healing
chemical_list: D024042:Collagen Type I; D010616:Phenanthrenes; D017395:Plasminogen Activator Inhibitor 1; C547314:Serpine1 protein, rat; C508962:Tgfb1 protein, rat; D053773:Transforming Growth Factor beta1; C024894:tanshinone II A sodium sulfonate; D010959:Tissue Plasminogen Activator