title: The effect of Shen-Fu on gastrointestinal tract injury and its potential mechanism during cardio-pulmonary bypass in patients undergoing cardiac surgery.
abstract: OBJECTIVE
  To investigate the effect of Shen-Fu (SF) injection on gastrointestinal tract injury and its potential mechanism.
  
  
  METHODS
  Thirty-eight patients undergoing elective open heart surgery were assigned to Group C (control group, n=18) and Group SF (n=20) randomly. In Group SF, the patients received intravenous injection of SF (0.5 ml/kg) at the beginning of the surgery followed by a continuous infusion of 100 ml SF (1.0 ml/kg) solution diluted by saline at a rate of 0.004 ml x Kg(-1) x min(-1) with a Grasby pump. The control group was injected with normal saline in the same volume. Gastric intramucosal pH (pHi), activity of blood diamine oxidase (DAO), and concentrations of blood LPS and IL-6 were measured before CPB (S0) and 1 h (S1) and 2 h (S2) after aortic declamping, respectively.
  
  
  RESULTS
  In Group C, pHi value was significantly lower at S1 and S2 than at S0 (mean P<0.01) and blood DAO and concentrations of LPS and IL-6 were significantly higher at S1 and S2 than at S0 (mean P<0.01). In Group SF, pHi was obviously lower at S1 and S2 than at S0 (P<0.05) but LPS and IL-6 levels and DAO were higher at S0 (mean P<0.05). Blood DAO and LPS level demonstrated significant negative correlations with pHi (mean P<0.01) while LPS concentration showed a positive correlation with blood DAO (P<0.01) and IL-6 concentration (P<0.05). At S1 and S2 after aortic declamping, the levels of pHi were higher in Group SF than in Group C (mean P<0.01 ) but DAO and LPS and IL-6 levels were significantly lower in Group SF than in Group C (P<0.01).
  
  
  CONCLUSIONS
  SF has a protective effect on gastrointestinal tract and can reduce inflammatory actions.
authors.affiliation: Department of Anesthesiology, People's Hospital, Wuhan University, Wuhan 430060, China. Luotao.wh@163.net
authors.forename: Zhong-yuan
authors.initials: ZY
authors.lastname: Xia
authors.forename: Li-ying
authors.initials: LY
authors.lastname: Zhan
authors.forename: Yu-hong
authors.initials: YH
authors.lastname: He
authors.forename: Xian-yi
authors.initials: XY
authors.lastname: Liu
mesh_terms: D000293:Adolescent; D000328:Adult; D006631:Amine Oxidase (Copper-Containing) / Q000097:blood; D006348:Cardiac Surgical Procedures / Q000009:adverse effects*; D002315:Cardiopulmonary Bypass / Q000009:adverse effects*; D002648:Child; D004064:Digestive System / Q000187:drug effects*; D005260:Female; D006801:Humans; D006863:Hydrogen-Ion Concentration; D015850:Interleukin-6 / Q000097:blood; D008070:Lipopolysaccharides / Q000097:blood; D008297:Male; D008516:Medicine, Chinese Traditional; D008875:Middle Aged; D020011:Protective Agents / Q000494:pharmacology
chemical_list: D015850:Interleukin-6; D008070:Lipopolysaccharides; D020011:Protective Agents; D006631:Amine Oxidase (Copper-Containing)