title: Effect of peroxisome proliferator-activated receptor-gamma agonist rosiglitazone on the induction of endometriosis in an experimental rat model.
abstract: OBJECTIVE
  To assess the effect of the peroxisome proliferator-activated receptor (PPAR)-gamma agonist rosiglitazone on the induction of endometriosis in a rat model.
  
  
  METHODS
  Endometriosis was surgically induced in 28 rats by transplanting an autologous fragment of endometrial tissue onto the inner surface of the abdominal wall. Group I was assigned as control and no medication was administered. Starting 3 days before the operation and continuing for 4 weeks, 0.2 mg/kg/d rosiglitazone was administered to the study group orally. Four weeks later rats were killed and ectopic uterine tissues were evaluated morphologically and histologically. Scoring systems were used to evaluate preservation of epithelia.
  
  
  RESULTS
  Four rats in the study group and one rat in the control group died of complications related to surgery. There was a significant difference in post-treatment spherical volumes (64.00 mm3 [interquartile range (IQR): 354.42] vs 41.60 mm3 [IQR: 37.87], P = .018) and explant weights (77.97 mg [IQR: 431.27] vs 47.24 mg [IQR: 43.01], P = .005) between control and rosiglitazone-treated groups. The epithelia were found to be preserved significantly better in the control group when compared with the roziglitazone-treated group (2.00 [IQR:2.00] vs 0.00 [IQR:2.25], P = .014).
  
  
  CONCLUSIONS
  Rosiglitazone was found to affect the induction of endometriosis negatively in this experimental rat model and seemed to interfere with the growth and maintenance of the uterine explant.
authors.affiliation: Department of Obstetrics and Gynecology, Gaziosmanpasa University, Tokat, Turkey.
authors.forename: Fazli
authors.initials: F
authors.lastname: Demirturk
authors.forename: Hakan
authors.initials: H
authors.lastname: Aytan
authors.forename: Ahmet C
authors.initials: AC
authors.lastname: Caliskan
authors.forename: Pelin
authors.initials: P
authors.lastname: Aytan
authors.forename: Dogan R
authors.initials: DR
authors.lastname: Koseoglu
mesh_terms: D000818:Animals; D004195:Disease Models, Animal; D004715:Endometriosis / Q000188:drug therapy* / Q000503:physiopathology*; D004717:Endometrium / Q000637:transplantation; D005260:Female; D007004:Hypoglycemic Agents / Q000494:pharmacology*; D007249:Inflammation; D047495:PPAR gamma / Q000502:physiology; D051381:Rats; D017208:Rats, Wistar; D000077154:Rosiglitazone; D045162:Thiazolidinediones / Q000494:pharmacology*
chemical_list: D007004:Hypoglycemic Agents; D047495:PPAR gamma; D045162:Thiazolidinediones; D000077154:Rosiglitazone