Mitch Dowsett

OBJECTIVE: GnRH analogues are being used increasingly for a number of oestrogen dependent conditions in women. The resultant profound hypo-oestrogenism is a disadvantage, however, but the preservation of pituitary sensitivity to negative fe…

The expression of receptors for the ovarian steroid hormones oestrogen and progesterone was studied immunohistochemically using monoclonal antibodies in samples of endometriosis and endometrium in 22 patients. In nine patients samples of en…

SummaryThe endocrine effects of danazol and goserelin were studied in 10 and 20 women with endometriosis, respectively. Goserelin caused a profound degree of hypogona-dotrophic hypo-oestrogenism comparable with complete ovarian ablation. Da…

ObjectiveTo determine whether the effect of danazol on gonadotropin pulsatility was due to a direct effect of the drug or the suppression in the estradiol (E2) levels.DesignProspective analysis of serial blood samples at 10-minute intervals…

SUMMARY In an attempt to determine whether the suppression in oestradiol levels caused by danazol is due to an effect on the hypothalamic‐pituitary axis, we compared the endocrine effects of danazol with those of the LHRH (GnRH) agonist ana…

Danazol and gestrinone are both effective agents in the treatment of endometriosis. Their mechanism of action is unknown but may be related to their androgenic activity, which is at least partly dependent on increases in the proportion of t…

Only 13% of postmenopausal advanced breast cancer patients responded to endocrine treatment with aminoglutethimide plus danazol whilst 33% responded to aminoglutethimide alone, despite a similar suppression of serum oestradiol levels in the…

Danazol is known to cause marked suppression of sex hormone binding globulin (SHBG) levels in plasma and to increase the proportion of plasma testosterone unbound to protein but the effect on the concentration of total and free testosterone…

The response rate of advanced postmenopausal breast cancer patients to treatment with aminoglutethimide (AG) + danazol was significantly worse than that with AG alone. The suppression of serum oestradiol levels by AG + danazol was similar t…

The effects of danazol therapy on circulating gonadotrophins, oestradiol and sex hormone-binding globulin (SHBG) binding capacity have been studied in eight patients with endometriosis. There was a significant rise in luteinizing hormone (L…

Serum prolactin concentrations were measured in 135 postmenopausal patients with advanced breast cancer prior to their treatment with one of 3 endocrine therapies: aminoglutethimide (AG), tamoxifen (T) + AG, or T + AG + danazol. The mean le…