title: Temporal variation in the recovery from impairment in adriamycin-induced wound healing in rats.
abstract: BACKGROUND
  An adriamycin-induced impairment of wound healing has been demonstrated experimentally in rats. The purpose of this study is to investigate a possible temporal variation in recovery from the impairment of wound healing caused by adriamycin administration.
  
  
  METHODS
  The subjects were 120 female Spraque-Dawley rats. They were divided into eight groups, undergoing adriamycin administration (8 mg/kg, i.v.) at 9 a.m. or 9 p.m. on day 0 and laparotomy on day 0, 7, 14 or 21. Blast pressures were recorded after the incision line had been opened, and tissue samples were kept at -30 degrees C for later measurement of hydroxyproline levels.
  
  
  RESULTS
  Adriamycin treatment in rats at 9 p.m. resulted in significantly lower blast pressure levels than treatment at 9 a.m. between days 7 and 21, indicating a lag effect of healing time in wounded tissues. However the decreased hydroxyproline levels were not changed at these days and sessions.
  
  
  CONCLUSIONS
  It is concluded that adriamycin-induced impairment of wound healing in adult female rats exhibits nycthemeral variation.
authors.affiliation: Department of Pharmacology, Gazi University, 06330, Hipodrom, Ankara, Turkey. nabaci@gazi.edu.tr.
authors.forename: Haluk
authors.initials: H
authors.lastname: Alagol
authors.forename: Soykan
authors.initials: S
authors.lastname: Dinc
authors.forename: Bilgen
authors.initials: B
authors.lastname: Basgut
authors.forename: Nurettin
authors.initials: N
authors.lastname: Abacioglu