title: Serum oxidative stress is increased in patients with post cholecystectomy bile duct injury.
abstract: BACKGROUND
  Post-cholecystectomy bile duct injuries are identified by the onset of jaundice as well as elevated bilirubin and alkaline phosphatase levels during the peri-operative period. It is unknown how serum oxidative stress markers are modified in patients with post-cholecystectomy bile duct injuries.
  
  
  OBJECTIVE
  To determine serum oxidative stress marker levels (lipid peroxidation by-products, nitrites/nitrates and total antioxidant capacity) in patients with post-cholecystectomy bile duct injuries.
  
  
  METHODS
  A prospective, transversal and analytical study was designed with two groups. Group 1: 5 healthy volunteer subjects. Group 2: 52 patients with post-cholecystectomy bile duct injuries (43 female and 9 male). An elective bilio-digestive reconstruction was performed at week 8. The serum oxidative stress marker levels were quantified by colorimetric method.
  
  
  RESULTS
  Patients with bile duct injuries had a significant increased serum lipid peroxides (malondialdehyde and 4-hydroxy-alkenals) and nitric oxide metabolites (nitrites/nitrates) levels compared to the control group. In contrast, total antioxidant capacity in patients with bile duct injuries remained similar compared to healthy controls.
  
  
  CONCLUSIONS
  The results show that oxidative stress is usually associated to bile duct injury.
authors.affiliation: General Surgery, Centro Universitario de Ciencias de la Salud, Universidad de Guadalajara, Jalisco, México. alexmiranda1@hotmail.com
authors.forename: A G
authors.initials: AG
authors.lastname: Miranda-Díaz
authors.forename: J M
authors.initials: JM
authors.lastname: Hermosillo-Sandoval
authors.forename: G G
authors.initials: GG
authors.lastname: Ortiz
authors.forename: D
authors.initials: D
authors.lastname: Lizardi-García
authors.forename: E G
authors.initials: EG
authors.lastname: Cardona-Muñoz
authors.forename: F
authors.initials: F
authors.lastname: Pacheco-Moisés
mesh_terms: D001652:Bile Ducts / Q000293:injuries* / Q000378:metabolism*; D002763:Cholecystectomy; D003430:Cross-Sectional Studies; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D018384:Oxidative Stress; D011446:Prospective Studies