title: [Effects of sevoflurane preconditioning on cardiomyocyte apoptosis and myocardial inflammation in rats with sepsis].
abstract: OBJECTIVE
  To observe the effects of preconditioning with different concentrations of sevoflurane on cariomyocyte apoptosis and myocardial inflammation in rats with sepsis and explore the possible mechanism of sevoflurane for myocardial protection.
  
  
  METHODS
  Forty adult male Sprague-Dawley rats were randomly divided into 4 groups (n=10), namely the control group, LPS group, low-concentration sevoflurane group and high-concentration sevoflurane group. Following sevoflurane pretreatment for 30 min and a washout period for 10 min, all the rats received intraperitoneal injection of LPS or normal saline (NS) and were sacrificed 12 h later to observe the myocardial histopathology. Apoptosis of the ardiomyocytes was detected with TUNEL assay, and enzyme-linked immunosorbent assay was used to detect serum cTnI level and myocardial TNF-α level.
  
  
  RESULTS
  Compared with the control group, the rats in the other 3 groups showed significantly increased serum cTnI level, myocardial TNF-α content, and apoptotic index of the cardiomyocytes (P<0.05). Compared with those in LPS group, serum cTnI level, myocardial TNF-α content, and apoptotic index of the cardiomyocytes were significantly decreased in the two sevoflurane preconditioning groups (P<0.05), and the effect was more obvious with a high dose of sevoflurane (P<0.05 CONCLUSION: Sevoflurane preconditioning can concentration-dependently reduce LPS-induced myocardial injury in rats possibly by decreasing cardiomyocyte apoptosis and alleviating myocardial inflammations.
authors.affiliation: Department of Anesthesiology, Affiliated Union Hospital of Fujian Medical University, Fuzhou 350001, China. E-mail: xiaolai72@139.com.
authors.forename: Junsong
authors.initials: J
authors.lastname: Lai
authors.forename: Liangcheng
authors.initials: L
authors.lastname: Zhang
authors.forename: Huishu
authors.initials: H
authors.lastname: Wang
authors.forename: Pengtao
authors.initials: P
authors.lastname: Lin
authors.forename: Wenhua
authors.initials: W
authors.lastname: Chen
mesh_terms: D000818:Animals; D017209:Apoptosis; D008297:Male; D008738:Methyl Ethers / Q000494:pharmacology*; D009205:Myocarditis / Q000188:drug therapy*; D009206:Myocardium / Q000473:pathology; D032383:Myocytes, Cardiac / Q000166:cytology / Q000187:drug effects*; D051381:Rats; D017207:Rats, Sprague-Dawley; D018805:Sepsis; D000077149:Sevoflurane; D019210:Troponin I / Q000097:blood; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism
chemical_list: D008738:Methyl Ethers; D019210:Troponin I; D014409:Tumor Necrosis Factor-alpha; D000077149:Sevoflurane