title: The administration of estrogens, combined with anti-androgens, has beneficial effects on the hormonal features and asymmetric dimethyl-arginine levels, in women with the polycystic ovary syndrome.
abstract: The present study was designed in order to: (a) compare ET-1 and ADMA levels, between women with PCOS (n=106) and healthy controls (n=30); (b) determine the effects of treatment with estrogens and anti-androgens on the hormonal features of PCOS, insulin resistance, ET-1 and ADMA levels. Women with PCOS were randomized in five therapeutic protocols: (I) 17beta-estradiol+cyproterone acetate 50mg; (II) conjugated estrogen+CA 50 mg; (III) ethinyl estradiole+CA 2mg; (IV) EE+CA 52 mg; (V) EE+desogestrel. In all women, gonadotropin, PRL, androgen, SHBG, insulin, glucose, ET-1 and ADMA levels were determined; in women with PCOS, testosterone, SHBG, ET-1 and ADMA levels were measured again after 3, 6, 12 months of treatment and insulin and glucose levels after 12 months. ET-1 and ADMA concentrations were higher in women with PCOS, and they were positively correlated with each other. ADMA levels were decreased and IR was increased with treatment. Treatment with synthetic estrogens (EE) resulted in a more pronounced increase in SHBG and a more pronounced decrease in FAI, compared to natural estrogens. Conclusively, PCOS is associated with endothelial dysfunction, which is ameliorated by the administration of estrogens and anti-androgens, independent of IR.
authors.affiliation: Division of Endocrinology and Human Reproduction, 2nd Department of Obstetrics and Gynecology, Aristotle University of Thessaloniki, Hippocration General Hospital, Thessaloniki 54642, Greece.
authors.forename: Christina
authors.initials: C
authors.lastname: Charitidou
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Farmakiotis
authors.forename: Vassiliki
authors.initials: V
authors.lastname: Zournatzi
authors.forename: Ifigenia
authors.initials: I
authors.lastname: Pidonia
authors.forename: Theodosia
authors.initials: T
authors.lastname: Pegiou
authors.forename: Nikolaos
authors.initials: N
authors.lastname: Karamanis
authors.forename: Maria
authors.initials: M
authors.lastname: Hatzistilianou
authors.forename: Ilias
authors.initials: I
authors.lastname: Katsikis
authors.forename: Dimitrios
authors.initials: D
authors.lastname: Panidis
mesh_terms: D000328:Adult; D000726:Androgen Antagonists / Q000008:administration & dosage / Q000627:therapeutic use*; D001120:Arginine / Q000031:analogs & derivatives* / Q000097:blood; D017373:Cyproterone Acetate / Q000008:administration & dosage / Q000627:therapeutic use; D017135:Desogestrel / Q000008:administration & dosage / Q000627:therapeutic use; D004359:Drug Therapy, Combination; D019332:Endothelin-1 / Q000097:blood*; D004958:Estradiol / Q000008:administration & dosage / Q000627:therapeutic use; D004967:Estrogens / Q000008:administration & dosage / Q000627:therapeutic use*; D004966:Estrogens, Conjugated (USP) / Q000008:administration & dosage / Q000627:therapeutic use; D004997:Ethinyl Estradiol / Q000008:administration & dosage / Q000627:therapeutic use; D005260:Female; D006728:Hormones / Q000097:blood*; D006801:Humans; D007333:Insulin Resistance / Q000502:physiology; D011085:Polycystic Ovary Syndrome / Q000188:drug therapy*
chemical_list: D000726:Androgen Antagonists; D019332:Endothelin-1; D004967:Estrogens; D004966:Estrogens, Conjugated (USP); D006728:Hormones; D004997:Ethinyl Estradiol; D017373:Cyproterone Acetate; D004958:Estradiol; C018524:N,N-dimethylarginine; D017135:Desogestrel; D001120:Arginine