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  • Title: Cholesterol fractions and apolipoproteins during endometriosis treatment by a gonadotrophin releasing hormone (GnRH) agonist implant or by danazol.
    Author: Lemay A, Brideau NA, Forest JC, Dodin S, Maheux R.
    Journal: Clin Endocrinol (Oxf); 1991 Oct; 35(4):305-10. PubMed ID: 1836425.
    Abstract:
    OBJECTIVE: The evaluation of cholesterol fractions and apoproteins during ovarian suppression by a GnRH agonist implant vs danazol in the treatment of endometriosis. DESIGN: 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. MEASUREMENTS: 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.
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