title: Cholesterol fractions and apolipoproteins during endometriosis treatment by a gonadotrophin releasing hormone (GnRH) agonist implant or by danazol.
abstract: OBJECTIVE
  The evaluation of cholesterol fractions and apoproteins during ovarian suppression by a GnRH agonist implant vs danazol in the treatment of endometriosis.
  
  
  METHODS
  A randomized study in 33 patients comparing goserelin (3.6 mg/4 weeks s.c., n = 20) with danazol (2 x 400 mg/day p.o., n = 13) in patients with a laparoscopic diagnosis of endometriosis and treated for 6 months.
  
  
  METHODS
  Triglycerides, cholesterol (C), LDL-C, HDL-C subfractions and apoproteins A-1 and B were measured at admission, at months 2, 4 and 6 of treatment and at month 2 post-treatment.
  
  
  RESULTS
  After 1 month of therapy, serum oestradiol levels were maintained in the menopausal range with goserelin and in the early follicular phase range with danazol. Goserelin induced a significant elevation in HDL-C (by 31.4%), in HDL2-C (24.6%) and in HDL3-C (45.7%) but no significant change in LDL-C or in ApoA-1 and ApoB. By contrast, danazol caused significant diminutions in HDL-C (23.9%), HDL2-C (56.6%) and ApoA-1 (35.6%). Moreover, danazol increased LDL-C (10.5%) and ApoB (29.0%, P less than 0.05). The lipoprotein changes during goserelin had a favourable effect on the atherogenic index (cholesterol/HDL-C) and ApoA-1/ApoB ratio whereas those of danazol had opposite effects. These changes reverted 2 months after danazol while HDL was still elevated after goserelin.
  
  
  CONCLUSIONS
  In relation to cholesterol, goserelin is a safe medication. The significance of temporary adverse changes in cholesterol fractions due to danazol is still unknown.
authors.affiliation: Research Center, St-François d'Assise Hospital, Laval University, Quebec, Canada.
authors.forename: A
authors.initials: A
authors.lastname: Lemay
authors.forename: N A
authors.initials: NA
authors.lastname: Brideau
authors.forename: J C
authors.initials: JC
authors.lastname: Forest
authors.forename: S
authors.initials: S
authors.lastname: Dodin
authors.forename: R
authors.initials: R
authors.lastname: Maheux
mesh_terms: D000328:Adult; D001053:Apolipoproteins / Q000097:blood*; D002064:Buserelin / Q000031:analogs & derivatives* / Q000627:therapeutic use; D008076:Cholesterol, HDL / Q000097:blood*; D008078:Cholesterol, LDL / Q000097:blood*; D003613:Danazol / Q000627:therapeutic use*; D004715:Endometriosis / Q000097:blood* / Q000188:drug therapy; D004958:Estradiol / Q000097:blood; D005260:Female; D007987:Gonadotropin-Releasing Hormone / Q000502:physiology; D017273:Goserelin; D006801:Humans
chemical_list: D001053:Apolipoproteins; D008076:Cholesterol, HDL; D008078:Cholesterol, LDL; D017273:Goserelin; D007987:Gonadotropin-Releasing Hormone; D004958:Estradiol; D003613:Danazol; D002064:Buserelin