The effect of Danazol on the pituitary function, thyroid function, and mastodynia

In: Archives of Gynecology · 1980 · vol. 230(1) , pp. 3–8 · doi:10.1007/bf02108592 · PMID:6776912 · W2047851377
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Danazol effectively treated mastodynia, decreased estradiol and triiodothyronine levels, and reduced TRH-stimulated prolactin, while not significantly altering LH, FSH, or TSH.

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This study evaluated Danazol (Winobanin) in 24 patients with mastodynia, with 10 undergoing GnRH and TRH testing before and during treatment to assess pituitary functional reserve, alongside measurements of estradiol, T3, T4, LH, FSH, prolactin, and TSH. Danazol relieved symptoms in 17/24 patients versus 21% with placebo, while basal and GnRH-stimulated LH and FSH levels were not significantly altered. Estradiol decreased significantly, TRH-stimulated prolactin responses were significantly reduced with unchanged basal prolactin, and T3 levels fell significantly while T4 and TSH were unchanged; the authors conclude Danazol may mask hypothyroidism by lowering T3. This paper does not explicitly discuss endometriosis or adenomyosis; it was included in the corpus via a keyword match in the upstream search index.

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Zusammenfassung Die vorliegende Studie untersucht die klinische Wirksamkeit von Danazol (Winobanin) bei der Behandlung von 24 Patientinnen mit Mastodynie. Bei zehn dieser Patientinnen wurde der Einfluß von Danazol auf die funktionelle Reserve der Hypophysenhormone LH und FSH nach GnRH-Stimulation untersucht, ebenso Prolaktin und TSH vor und nach Injektion von 0,2 mg TRH. Zusätzlich wurden die Plasmaöstradiolspiegel sowie Thyroxin und Trijodthyronin bestimmt. Einundsiebzig Prozent der Patientinnen wurden unter der Danazolbehandlung beschwerdefrei, während die Placebogabe nur in 21% zur Beschwerdefreiheit führte. Die basalen sowie GnRH-stimulierten LH- und FSH-Spiegel sanken nicht signifikant unter der Danazolbehandlung. Die Östradiolplasmaspiegel lagen vor der Behandlung bei 87 ± 28 pg/ml und fielen unter Danazol auf 50 ± 27 pg/ml (p < 0,01). Die TRH-stimulierten PRL-Antworten waren unter Danazol signifikant gesenkt, während die basalen PRL-Spiegel unbeeinflußt blieben. Die TSH-Sekretion wurde durch die Danazoleinnahme nicht verändert. Die Trijodthyroninspiegel sanken von ausgangs 109,2 ± 12,6 ng/ml auf 79,4 ± 9,1 ng/ml unter der Behandlung (p < 0,01). Die Thyroxinwerte blieben unbeeinflußt. Aus diesen Ergebnissen kann folgendes geschlossen werden: 1. Danazol ist ein Medikament, das erfolgreich in der Mastodyniebehandlung eingesetzt werden kann. 2. Die antigonadotrope Wirkung von Danazol ist gering ausgeprägt. 3. Die hypophysäre Prolaktinreserve ist unter Danazol vermindert. 4. Bei den behandelten Patienten wird durch den erniedrigten T3-Spiegel eine Hypothyreose vorgetäuscht. Summary The present study follows the clinical effect of Danazol (Winobanin) in the treatment of mastodynia in 24 patients. Ten of these patients were subjected to GnRH and TRH before and during the treatment with Danazol to study the functional reserve of the pituitary. In addition serum levels of T3, T4, and estradiol were determined. Danazol treatment was effective in 17 of the 24 patients. Basal levels of FSH and LH as well as the GnRH stimulated levels were not affected by the Danazol treatment. The average plasma levels of estradiol decreased from 87 ± 28 pg/ml to 50 ± 27 pg/ml under Danazol therapy. TRH stimulated prolactin levels were significantly lower under Danazol as compared to the pretreatment values. Basal levels of prolactin, however, remained unchanged. Basal and TRH stimulated TSH values were not affected by Danazol. T3 serum levels decreased significantly from 109.2 ± 12.6 ng/ml to 79.4 ± 9.1 ng/ml during Danazol intake. Thyroxin values remained constant. From the data obtained it can be concluded: 1. Danazol is an effective drug in treating mastodynia. 2. The antigonadotrophic effect of Danazol is obviously of minor importance. 3. The functional reserve of prolactin is reduced under Danazol probably due to a slightly suppressed ovarian function as reflected by decreased estradiol serum levels. 4. In patients under Danazol hypothyreoidism may be simulated by reduced T3 levels. Similar content being viewed by others References Asch RH, Greenblatt RB (1977) The use of an impeded androgen-danazol in the management of benign breast disorders. Am J Obstet Gynecol 127: 130 Barbieri RL, Canick JA, Makris A, Todd RB, Davies JJ, Ryan KJ (1977) Danazol inhibits steroidogenesis. Fertil Steril 28: 809 Blichert-Toft M, Andersen AN, Hendriksen, OB, Mygind T (1979) Treatment of mastalgia with bromocriptine: a double-blind cross-over study. Br Med J 1: 237 Breckwoldt M, Peters F (1979) Die medikamentöse Beeinflussung gutartiger Mammaerkrankungen. Therapiewoche 29: 190 Colin C, Gaspard U, Lambotte R (1978) Relationship of mastodynia with its endocrine environment and treatment in a double blind trial with lynestrenol. Arch Gynäkol 225: 7 Dmowski WP, Cohen MR (1975) Treatment of endometriosis with an antigonadotropin danazol. Obstet Gynecol 46: 147 Franchimont P, Cramilion C (1977) The effect of Danazol on the anterior pituitary function. Fertil Steril 28: 814 Goebel R, Rjosk HK (1978) Danazol, ein neues synthetisches Gestagen — Behandlungsergebnisse bei Endometriose, Mastopathie und langjähriger primärer Ehesterilität. Geburtshilfe Frauenheilkd 38: 932 Kuss E, Goebel R (1972) Determination of estrogens by radioimmunoassay with antibodies to estrogen-C6-conjugates: I. Synthesis of estrone-, estradiol-17β-, and estriol-6-albumin conjugates. Steroids 19: 509 Pamall PR, Maas DA (1977) Danazol and thyroid-function tests. Lancet 1: 102 Peters F, Richter D, Breckwoldt M (1978) Sekundäre Amenorrhoe. Zusammenhänge zwischen endokrinologischen und psychosomatischen Befunden. Dtsch Med Wochenschr 103: 898 Peters F, Zimmermann G, Breckwoldt M (1978) Effect of pyridoxine on plasma levels of HGH, PRL and TSH in normal women. Acta Endocrinol (Copenh) 89: 217 Peters TG, Lewis JD, Wilkinson EJ, Fuhrman TM (1977) Danazol therapy in hormone-sensitive mammary carcinoma. Cancer 40: 2797 Pickardt CR (1977) (pers Comm) Reck G, Noss U, Breckwoldt M (1979) Circadian rhythm of free oestradiol in relation to plasma cortisol in late human pregnancy. Acta Endocrinol (Copenh) 90: 519 Schulz KD, Pozo E del, Lose KH, Künzig HJ, Geiger W (1975) Successful treatment of mastodynia with the prolactin inhibitor bromocriptine (CB 154). Arch Gynäkol 220: 83 Sitruk-Ware LR, Sterkens N, Mowszowicz J, Mauvais-Jarvis P (1977) Inadequate corpus luteum function in women with benign breast diseases. J Clin Endocrinol Metab 44: 771 Swoboda W, Turnheim E, Frisch H, Spona J (1977) Ein neues „Antigonadotropin“ in der Behandlung der Pupertas praecox und der Pubertätsgynäkomastie. Paediatr Paedol [Suppl] 5: 109 Tamaya T, Furuta N, Motoyama T, Boku S, Ohono Y, Okada H (1978) Mechanism of antiprogestational action of synthetic steroids. Acta Endocrinol (Copenh) 88: 190 Wentz AC, Jones GS, Sapp KC, King TM (1976) Progestational activity of Danazol in the human female subject. Am J Obstet Gynecol 126: 378 Author information Authors and Affiliations Rights and permissions About this article Cite this article Peters, F., Reck, G., Zimmermann, G. et al. The effect of Danazol on the pituitary function, thyroid function, and mastodynia. Arch. Gynecol. 230, 3–8 (1980). https://doi.org/10.1007/BF02108592 Received: Accepted: Issue date: DOI: https://doi.org/10.1007/BF02108592

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