title: Caffeic acid phenethyl ester prevents intestinal reperfusion injury in rats.
abstract: OBJECTIVE
  Ischemia-reperfusion injury is encountered frequently in conditions that diminish intestinal blood flow. Caffeic acid phenethyl ester (CAPE), which is a specific component of the honeybee hive product propolis, exhibits potential antioxidant properties. This experimental study was designed to determine the effect of CAPE on ischemia-reperfusion injury in rat intestine.
  
  
  METHODS
  Fifty rats were divided into 5 groups; sham (SH), saline ischemia (SI), saline reperfusion (SR), CAPE ischemia (CI), and CAPE reperfusion (CR). Either CAPE, 10 micromol/kg, or saline was administered intraperitoneally 30 minutes before ischemia. Intestinal ischemia for 30 minutes and reperfusion for 60 minutes were applied. Ileum specimens were obtained to determine the tissue levels of malondialdehyde, superoxide dismutase, catalase, and histological changes.
  
  
  RESULTS
  Malondialdehyde levels in the CR group did not increase after reperfusion when compared with the CI group. However, statistically significant differences were observed between the SR and SI groups. Additional mucosal injury in the CR group when compared with the CI group was not observed. Whereas, there was a statistically significant increase in mucosal injury in the SR group. Reperfusion did not cause further injuries through both biochemical and histological parameters in the CR group.
  
  
  CONCLUSIONS
  Results of this study showed that prophylactic administration of CAPE in ischemic condition prevents reperfusion injuries by eliminating oxygen radicals and inhibiting polymorphonuclear leukocyte infiltration. CAPE may be useful in combating the diseases of oxidative stress.
authors.affiliation: Department of Pediatric Surgery, Inönü University, Medical Faculty, Malatya, Turkey.
authors.forename: U
authors.initials: U
authors.lastname: Koltuksuz
authors.forename: S
authors.initials: S
authors.lastname: Ozen
authors.forename: E
authors.initials: E
authors.lastname: Uz
authors.forename: M
authors.initials: M
authors.lastname: Aydinç
authors.forename: A
authors.initials: A
authors.lastname: Karaman
authors.forename: A
authors.initials: A
authors.lastname: Gültek
authors.forename: O
authors.initials: O
authors.lastname: Akyol
authors.forename: M H
authors.initials: MH
authors.lastname: Gürsoy
authors.forename: E
authors.initials: E
authors.lastname: Aydin
mesh_terms: D000818:Animals; D002109:Caffeic Acids / Q000627:therapeutic use*; D003603:Cytotoxins / Q000627:therapeutic use*; D005069:Evaluation Studies as Topic; D005260:Female; D007413:Intestinal Mucosa / Q000473:pathology; D007422:Intestines / Q000098:blood supply*; D008297:Male; D010626:Phenylethyl Alcohol / Q000031:analogs & derivatives* / Q000627:therapeutic use; D051381:Rats; D017208:Rats, Wistar; D015427:Reperfusion Injury / Q000473:pathology / Q000517:prevention & control*
chemical_list: D002109:Caffeic Acids; D003603:Cytotoxins; C055494:caffeic acid phenethyl ester; D010626:Phenylethyl Alcohol