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Effects on the breast of drugs used in fertility regulation.

The action of fertility-regulating drugs on the breast is discussed. Compounds such as steroids act directly on breast tissues, whereas others, such as clomiphene or gonadotrophin, act indirectly. There can be differential responses of the alveolar and ductal systems. Tissues of a breast tumour typical of epithelial tissues were analysed for changes in cytosolic and nuclear receptors for oestradiol-17 beta and progesterone following its exposure to these steroids. Effects on cell multiplication and receptor density were identified. The relationship of these findings to benign breast disease and oral contraceptives is discussed.

17-Hydroxysteroid Dehydrogenases↗

Potential risks, benefits of progestins in birth control pills outlined.

Progestins in oral contraceptives (OCs) produce potential complications, as well as noncontraceptive benefits, according to Robert A. Hatcher, MD, MPH, professor of gynecology and obstetrics, Emory University Medical School. Hatcher told CTU that lowering the progestin content in an OC may decrease complications, but could also decrease the benefits experienced by women. "The extent to which that will happen remains to be seen," he said. Hatcher cited the following potential complications of progestins in OC: hypertension; decreased levels of high density lipoproteins; acne; oily skin; headaches between pill cycles; dilated leg veins; pelvic congestion syndrome; thrombosis of superficial leg veins; gallstones; Monilia vaginitis; cholestatic jaundice; and depression, fatigue, and decreased libido. Progestins, according to Hatcher, also produce these noncontraceptive benefits: protection against PID; decreased dysmenorrhea; decreased menstrual blood loss, decreased iron deficiency anemia; protection against endometrial cancer; protection against fibrocystic breast disease, and fibroadenomas of the breast; decreased bleeding from fibroids; decreased growth of fibroids. When ovulation is suppressed, Hatcher emphasized, additional benefits that may occur include the following: decreased risk of functional ovarian cysts; elimination of mittleschmerz pain; decreased rick of ovarian cancer; protection against endometriosis.

Behavior↗