title: Effects of synthetic colloids on oxidative stress and inflammatory response in hemorrhagic shock: comparison of hydroxyethyl starch 130/0.4, hydroxyethyl starch 200/0.5, and succinylated gelatin.
abstract: BACKGROUND
  This study compared the effects of hydroxyethyl starch 130/0.4, hydroxyethyl starch 200/0.5, and succinylated gelatin on oxidative stress and the inflammatory response in a rodent hemorrhagic shock model.
  
  
  METHODS
  Sodium pentobarbital-anesthetized adult male Wistar rats (200 g to 220 g) were subjected to a severe volume-controlled hemorrhage using arterial blood withdrawal (30 mL/kg to 33 mL/kg) and resuscitated with a colloid solution at the same volume as blood withdrawal (hydroxyethyl starch 130/0.4, hydroxyethyl starch 200/0.5, or succinylated gelatin). Arterial blood gas parameters were monitored. Malondialdehyde (MDA) content and myeloperoxidase (MPO) activity in the liver, lungs, intestine, and brain were measured two hours after resuscitation. The levels of tumor necrosis factor-alpha (TNF-α) and interleukin-6 in the intestine were also measured.
  
  
  RESULTS
  Infusions of hydroxyethyl starch 130/0.4, but not hydroxyethyl starch 200/0.5 or succinylated gelatin, significantly reduced MDA levels and MPO activity in the liver, intestine, lungs and brain, and it also inhibited the production of TNF-α in the intestine two hours after resuscitation. However, no significant difference between hydroxyethyl starch 200/0.5 and succinylated gelatin was observed.
  
  
  CONCLUSIONS
  Hydroxyethyl starch 130/0.4, but not hydroxyethyl starch 200/0.5 or succinylated gelatin, treatment after hemorrhagic shock ameliorated oxidative stress and the inflammatory response in this rat model. No significant differences were observed after hydroxyethyl starch 200/0.5 or succinylated gelatin administration at doses of approximately 33 mL/kg.
authors.forename: Gan
authors.initials: G
authors.lastname: Chen
authors.forename: Guoxing
authors.initials: G
authors.lastname: You
authors.forename: Ying
authors.initials: Y
authors.lastname: Wang
authors.forename: Mingzi
authors.initials: M
authors.lastname: Lu
authors.forename: Weina
authors.initials: W
authors.lastname: Cheng
authors.forename: Jing
authors.initials: J
authors.lastname: Yang
authors.forename: Lian
authors.initials: L
authors.lastname: Zhao
authors.forename: Hong
authors.initials: H
authors.lastname: Zhou
mesh_terms: D000818:Animals; D001784:Blood Gas Analysis; D003102:Colloids; D004195:Disease Models, Animal; D005780:Gelatin / Q000627:therapeutic use*; D006895:Hydroxyethyl Starch Derivatives / Q000031:analogs & derivatives* / Q000627:therapeutic use*; D007249:Inflammation / Q000378:metabolism*; D015850:Interleukin-6 / Q000378:metabolism; D007413:Intestinal Mucosa / Q000378:metabolism; D015227:Lipid Peroxidation; D008297:Male; D008315:Malondialdehyde / Q000378:metabolism; D009504:Neutrophils / Q000378:metabolism; D018384:Oxidative Stress / Q000187:drug effects*; D009195:Peroxidase / Q000378:metabolism; D017208:Rats, Wistar; D012771:Shock, Hemorrhagic / Q000188:drug therapy* / Q000378:metabolism*; D013386:Succinates / Q000627:therapeutic use*; D014409:Tumor Necrosis Factor-alpha / Q000378:metabolism
chemical_list: D003102:Colloids; D006895:Hydroxyethyl Starch Derivatives; D015850:Interleukin-6; D013386:Succinates; D014409:Tumor Necrosis Factor-alpha; C517718:hydroxyethylstarch 200; C060085:succinylated gelatin; D008315:Malondialdehyde; D005780:Gelatin; D009195:Peroxidase