Estrogens and Androgens
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Questions and Answers

Which hormone is the principal estrogen in premenopausal women?

  • Dehydroepiandrosterone
  • Estradiol (correct)
  • Progesterone
  • Estrone
  • What is the primary circulating estrogen after menopause?

  • Estrone (correct)
  • Estradiol
  • Progesterone
  • Testosterone
  • What is the last step in estrogen synthesis?

  • Shortening of the hydrocarbon side chain
  • Aromatization (correct)
  • Hydroxylation of the steroid nucleus
  • Cholesterol synthesis
  • Which hormone has approximately one-third the estrogenic potency of estradiol?

    <p>Estrone</p> Signup and view all the answers

    What are sex hormones used therapeutically for?

    <p>Contraception and hormone deficiency replacement therapy</p> Signup and view all the answers

    From what precursor are sex hormones synthesized?

    <p>Cholesterol</p> Signup and view all the answers

    What route of administration is recommended to minimize risks for women with urogenital symptoms like vaginal atrophy?

    <p>Vaginal</p> Signup and view all the answers

    Which type of therapy is used for young women with primary hypogonadism to stimulate the development of secondary sex characteristics?

    <p>Estrogen therapy</p> Signup and view all the answers

    Why is micronized estradiol preferred over standard estradiol for oral administration?

    <p>It has better bioavailability</p> Signup and view all the answers

    Which synthetic estrogen is a prodrug cleaved into estradiol and valeric acid?

    <p>Estradiol valerate</p> Signup and view all the answers

    What is the main site where naturally occurring estrogens like estradiol are metabolized and partially inactivated?

    <p>Liver</p> Signup and view all the answers

    In which situation is replacement therapy used for women due to hormonal deficiencies?

    <p>Surgical menopause</p> Signup and view all the answers

    Which medication can be used for both reducing the risk of breast cancer and treating osteoporosis?

    <p>Bazedoxifene</p> Signup and view all the answers

    What is the primary route of excretion for selective estrogen receptor modulators (SERMs)?

    <p>Feces</p> Signup and view all the answers

    Which enzyme is responsible for the metabolism of tamoxifen into active metabolites?

    <p>CYP2D6</p> Signup and view all the answers

    What is the most common adverse effect of tamoxifen therapy?

    <p>Hot flashes</p> Signup and view all the answers

    Which medication is specifically indicated for treating dyspareunia related to menopause?

    <p>Ospemifene</p> Signup and view all the answers

    In patients with a genetic polymorphism in which enzyme, there may be decreased activity of tamoxifen due to production of less active metabolite?

    <p>CYP2D6</p> Signup and view all the answers

    Which adverse effect is commonly associated with the use of progestins?

    <p>Weight gain</p> Signup and view all the answers

    What is the half-life of oral medroxyprogesterone acetate?

    <p>60 hours</p> Signup and view all the answers

    What is the primary route of excretion for the metabolites of micronized progesterone?

    <p>Renal excretion</p> Signup and view all the answers

    Which synthetic progestin has the longest half-life when injected intramuscularly or subcutaneously for contraception?

    <p>Levonorgestrel</p> Signup and view all the answers

    For what purpose are progestogens NOT commonly used?

    <p>Management of polycystic ovary syndrome</p> Signup and view all the answers

    What is the primary synthetic progestin component in postmenopausal hormone therapy in its oral form?

    <p>Norethindrone acetate</p> Signup and view all the answers

    Which drug is metabolized by various CYP450 isoenzymes and is subject to many drug interactions?

    <p>Tamoxifen</p> Signup and view all the answers

    What common adverse effect is associated with raloxifene use?

    <p>Hot flashes</p> Signup and view all the answers

    Which drug poses an increased risk of deep vein thrombosis and pulmonary embolism?

    <p>Tamoxifen</p> Signup and view all the answers

    What should be considered in women with an intact uterus when using ospemifene?

    <p>Adding a progestogen</p> Signup and view all the answers

    Which drug increases the risk of multiple gestation, usually twins?

    <p>Clomiphene</p> Signup and view all the answers

    What is the role of luteinizing hormone (LH) in the production of progesterone in males?

    <p>Secreted by the testes</p> Signup and view all the answers

    What is the primary route of metabolism for a micronized preparation of progesterone?

    <p>Metabolism by the liver to pregnanediol and glucuronide and sulfate conjugates</p> Signup and view all the answers

    What is the typical duration of contraception provided by intramuscular or subcutaneous injection of oral medroxyprogesterone acetate?

    <p>3 months</p> Signup and view all the answers

    Which of the following is NOT a major adverse effect associated with the use of progestins?

    <p>Nausea</p> Signup and view all the answers

    What is the primary excretory route for the metabolites of synthetic progestins?

    <p>Renal excretion</p> Signup and view all the answers

    How long is the half-life of other progestins that allow for once-daily dosing?

    <p>25 to 30 hours</p> Signup and view all the answers

    Which synthetic progestin has the shortest half-life among the ones mentioned?

    <p>Norethindrone</p> Signup and view all the answers

    For how long does oral medroxyprogesterone acetate provide contraception when injected intramuscularly or subcutaneously?

    <p>~3 months</p> Signup and view all the answers

    Which side effect is commonly associated with the use of progestogens that was not listed among the major adverse effects?

    <p>Acne</p> Signup and view all the answers

    Which synthetic progestin has a longer half-life when injected intramuscularly or subcutaneously for contraception than medroxyprogesterone acetate?

    <p>Dienogest</p> Signup and view all the answers

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