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 (C)</p> Signup and view all the answers

What are sex hormones used therapeutically for?

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

From what precursor are sex hormones synthesized?

<p>Cholesterol (C)</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 (C)</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 (D)</p> Signup and view all the answers

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

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

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

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

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

<p>Surgical menopause (B)</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 (D)</p> Signup and view all the answers

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

<p>Feces (D)</p> Signup and view all the answers

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

<p>CYP2D6 (D)</p> Signup and view all the answers

What is the most common adverse effect of tamoxifen therapy?

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

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

<p>Ospemifene (B)</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 (A)</p> Signup and view all the answers

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

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

What is the half-life of oral medroxyprogesterone acetate?

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

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

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

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

<p>Levonorgestrel (B)</p> Signup and view all the answers

For what purpose are progestogens NOT commonly used?

<p>Management of polycystic ovary syndrome (C)</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 (A)</p> Signup and view all the answers

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

<p>Tamoxifen (C)</p> Signup and view all the answers

What common adverse effect is associated with raloxifene use?

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

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

<p>Tamoxifen (D)</p> Signup and view all the answers

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

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

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

<p>Clomiphene (B)</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 (A)</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 (C)</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 (B)</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 (A)</p> Signup and view all the answers

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

<p>Renal excretion (C)</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 (B)</p> Signup and view all the answers

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

<p>Norethindrone (C)</p> Signup and view all the answers

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

<p>~3 months (B)</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 (A)</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 (B)</p> Signup and view all the answers

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