Estrogens and Androgens: Hormones Quiz

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109 Questions

Which hormones are naturally involved in the development of primary and secondary sexual characteristics at puberty?

Estrogens and Androgens

What is the therapeutic use of Estrogens and Androgens?

Contraception and management of menopausal symptoms

From which compound are Estrogens and Androgens synthesized?

Cholesterol

Estrogens and Androgens are naturally involved in the development of primary and secondary sexual characteristics at puberty?

True

Estrogens and Androgens are only produced by the adrenal glands?

False

Antagonists of Estrogens and Androgens are used for the treatment or prevention of hormone responsive cancers?

True

Which natural estrogen is primarily found in the ovaries of premenopausal women?

Estradiol

From which compound are most estrone and estriol formed in the liver?

Estradiol

During which period is estriol primarily present?

Pregnancy

Estriol is primarily present during pregnancy?

True

Most estrone and estriol are formed in the liver from estradiol?

True

Estradiol is primarily found in the ovaries of premenopausal women?

True

What is the primary mechanism of action for synthetic estrogens?

Binding to specific nuclear proteins interacting with RNA synthesis

What is the therapeutic use of postmenopausal hormone therapy (HT) involving estrogens?

Management of menopausal symptoms

What is the additional requirement for women with intact uterus undergoing postmenopausal hormone therapy (HT) involving estrogens?

Addition of a progestogen

Synthetic estrogens bind with high affinity to specific nuclear proteins interacting with DNA RNA synthesis proteins needed for physiologic functions. (True/False)

True

Postmenopausal hormone therapy involving estrogens is used for menopausal symptoms such as vasomotor instability and urogenital tract atrophy. (True/False)

True

Vaginal estrogens are used for women with urogenital symptoms as part of postmenopausal hormone therapy. (True/False)

True

What is the primary use of a combination of estrogen and progestogen for contraception?

Effective contraception in women

Which type of estrogen is stored in adipose tissue and released slowly due to its fat solubility?

Synthetic estrogens

What is the primary route of metabolism for natural estrogens when taken orally?

Rapid metabolism in the liver

Natural estrogens are rapidly metabolized and partially inactivated when taken orally. (True/False)

True

Vaginal estrogens are used for women with urogenital symptoms as part of postmenopausal hormone therapy. (True/False)

True

Synthetic estrogens are stored in adipose tissue and released slowly due to their fat solubility. (True/False)

True

What is the primary route of metabolism for natural estrogens when taken orally?

All of the above

Which type of estrogen is stored in adipose tissue and released slowly due to its fat solubility?

Synthetic estrogens

Orally administered estradiol is primarily metabolized to estrone and estriol?

True

Estrogens are primarily bound to plasma albumin or sex hormone binding globulin?

True

Estrone and estriol are primarily metabolized by hepatic CYP 450 enzymes?

True

Which adverse effect is commonly associated with estrogens?

Breast tenderness

Estrogens can lead to fluid retention. (True/False)

True

Estrogens can cause myocardial infarction. (True/False)

True

Breast and endometrial cancer are adverse effects of estrogens. (True/False)

True

Which selective estrogen receptor modulator (SERM) competes with estrogen on the estrogen receptor in breast tissue and breast tumors?

Raloxifene

Which SERM has estrogen agonist activity in bone and lowers serum total cholesterol and LDL?

Raloxifene

Which SERM interferes with the negative feedback of estrogens on the hypothalamus, leading to ovulation?

Clomiphene

Tamoxifen and raloxifene compete with estrogen on estrogen receptor in breast tissue.

True

Raloxifene has estrogen agonist activity in bone.

True

Clomiphene is a partial estrogen antagonist interfering with the negative feedback of estrogens on the hypothalamus ovulation.

True

Which selective estrogen receptor modulator (SERM) is used for the prevention and treatment of osteoporosis?

Raloxifene

What is the therapeutic use of tamoxifen?

Metastatic breast cancer

Which selective estrogen receptor modulator (SERM) is used for symptoms of menopausal women with an intact uterus?

Bazedoxifene

Raloxifene is primarily used for the prevention and treatment of osteoporosis. (True/False)

True

Clomiphene is used for infertility. (True/False)

True

Estrogen can cause myocardial infarction. (True/False)

True

Which selective estrogen receptor modulator (SERM) is primarily used for the prevention and treatment of osteoporosis?

Raloxifene

What is the primary adverse effect associated with tamoxifen use?

Endometrial hyperplasia and malignancies

Which enzyme metabolizes selective estrogen receptor modulators (SERMs) into active metabolites?

CYP 2D6

What is the primary adverse effect associated with raloxifene use?

DVT and PE and Leg Cramps

Tamoxifen is primarily metabolized by CYP 450 enzymes.

True

Raloxifene is primarily used for the prevention and treatment of osteoporosis.

True

Clomiphene is used for the treatment of infertility.

True

Synthetic estrogens are stored in adipose tissue and released slowly due to their fat solubility.

True

Which enzyme metabolizes selective estrogen receptor modulators (SERMs) into active metabolites?

CYP 450 enzymes

What is the primary adverse effect associated with tamoxifen use?

Endometrial hyperplasia and malignancies

Which SERM has estrogen agonist activity in bone and lowers serum total cholesterol and LDL?

Raloxifene

Which compound is primarily produced in response to LH by males and females?

Progesterone

Which hormone binds with high affinity to specific nuclear proteins interacting with DNA RNA synthesis proteins needed for physiologic functions?

Estradiol

What hormones are naturally involved in the development of primary and secondary sexual characteristics at puberty?

Estrogens and androgens

What is the primary therapeutic use of progestogens?

Contraception

What is the primary route of metabolism for natural estrogens when taken orally?

Liver

What is the primary route of metabolism for micronized preparation of progesterone when taken orally?

Liver metabolism to pregnanediol + glucuronide/sulfate conjugates

What is the primary therapeutic use of progestogens?

Management of endometriosis and infertility

What is the main difference in metabolism between synthetic progestins and micronized preparation of progesterone?

Synthetic progestins are less rapidly metabolized compared to natural progesterone

Micronized preparation of progesterone is rapidly absorbed orally. (True/False)

True

Synthetic progestins are less rapidly metabolized. (True/False)

True

Estriol is primarily present during pregnancy. (True/False)

True

Raloxifene has estrogen agonist activity in bone. (True/False)

True

Which progestogen has the longest half-life?

IM medroxyprogesterone acetate

Which adverse effect is specifically associated with 19-nortestosterone derivatives?

Hirsutism and acne

Which progestogen carries the risk of hyperkalemia when used with drugs that increase potassium levels?

Drospirenone

Which progestogen is an antiprogestin used for the termination of pregnancy when combined with misoprostol?

Mifepristone

Progestogens have a longer half-life when administered intramuscularly compared to orally. (True/False)

True

Hirsutism and acne are adverse effects associated with 19-nortestosterone derivatives. (True/False)

True

Drospirenone may raise serum potassium levels and pose a risk of hyperkalemia when combined with drugs that increase potassium. (True/False)

True

Mifepristone is an antiprogestin used for the termination of pregnancy when combined with misoprostol. (True/False)

True

What is the primary mechanism of action for progestins in contraception?

Thickening the cervical mucus

What is a contraindication for the use of oral contraceptives?

Liver disease

Which adverse effect is specifically associated with estrogens and smoking in women over the age of 35?

Thromboembolism

Estrogens negatively affect FSH release. (True/False)

True

Progestins thicken the cervical mucus. (True/False)

True

Oral contraceptives are contraindicated in the presence of liver disease. (True/False)

True

Which of thr following is correct type of contraceptive contains both estrogen and progestin?

All of the above

Which hormone is the most common estrogen in combination oral contraceptives?

Ethinyl estradiol

Which enzyme metabolizes selective estrogen receptor modulators (SERMs) into active metabolites?

CYP 2D6

Which type of hormonal contraceptive is specifically recommended for breastfeeding women or those who have intolerance to estrogen containing products?

Progestin only pills

Which contraceptive method has the potential adverse effect of weight gain and osteoporosis/fractures if used for more than 2 years?

Injectable progestin

What is the primary hormone involved in the postcoital or emergency contraception method using a single high dose of levonorgestrel within 72 hours?

Progesterone

Progestin only pills are suitable for women who are breastfeeding or have intolerance to estrogen containing products. (True/False)

True

Injectable progestin can lead to weight gain and osteoporosis after prolonged use. (True/False)

True

Long acting reversible contraceptives include progestin implants and progestin intrauterine device. (True/False)

True

Emergency contraception with a single high dose of levonorgestrel can be used within 5 days of unprotected intercourse. (True/False)

False

What is the most important androgen synthesized in the testis, ovaries, and adrenal glands in males and females?

Testosterone

Which function is NOT required for androgens like testosterone, 5 α dihydrotestosterone, and dehydroepiandrosterone?

Promotion of estrogen production

Which androgen is primarily involved in the normal maturation of male and sperm production?

Testosterone

Testosterone is the most important androgen synthesized in the testis, ovaries, and adrenal glands in males and females. (True/False)

True

Clomiphene is used for infertility. (True/False)

True

Hirsutism and acne are adverse effects associated with 19-nortestosterone derivatives. (True/False)

True

Danazol has weak androgenic activity but has antiestrogenic activity as well.

True

Testosterone only (or its derivative) is used in females with menopausal symptoms unresponsive to estrogen alone.

False

Anabolic steroids are treatment of chronic wasting due to HIV or cancer.

True

Which route of administration for testosterone results in more lipid solubility and prolonged duration of action?

Intramuscular injection

Testosterone derivatives with 17α alkylation undergo less hepatic metabolism and can be administered orally.

True

Oxandrolone and oxymetholone are testosterone derivatives with 17 α alkylation,DHT enabling oral administration.

True

Testosterone derivatives like methyltestosterone and fluoxymesterone are primarily administered via transdermal patches or topical gels.

False

Androgens can cause abnormal sexual maturation and growth disturbances in children. (True/False)

True

Estrogens can cause myocardial infarction. (True/False)

True

What is a potential adverse effect of androgens in females?

Deepening of the voice

Which hormone binds with high affinity to specific nuclear proteins, interacting with DNA RNA synthesis proteins needed for physiologic functions?

Estrogens

Study Notes

Hormones Involved in Puberty

  • Estrogens and Androgens are naturally involved in the development of primary and secondary sexual characteristics at puberty
  • Estrogens are primarily found in the ovaries of premenopausal women
  • Androgens are primarily found in the testes of males and adrenal glands in both males and females

Estrogens

  • Estrogens can be synthesized from cholesterol
  • Estradiol is the most common estrogen in combination oral contraceptives
  • Estrone and estriol are formed in the liver from estradiol
  • Estriol is primarily present during pregnancy
  • Vaginal estrogens are used for women with urogenital symptoms as part of postmenopausal hormone therapy
  • Synthetic estrogens bind with high affinity to specific nuclear proteins interacting with DNA RNA synthesis proteins needed for physiologic functions
  • Estrogens can cause fluid retention, breast and endometrial cancer, and cardiovascular disease

Selective Estrogen Receptor Modulators (SERMs)

  • Tamoxifen competes with estrogen on the estrogen receptor in breast tissue and breast tumors
  • Raloxifene has estrogen agonist activity in bone and lowers serum total cholesterol and LDL
  • Clomiphene interferes with the negative feedback of estrogens on the hypothalamus, leading to ovulation
  • Raloxifene is used for the prevention and treatment of osteoporosis
  • Tamoxifen is used for the treatment of breast cancer
  • Clomiphene is used for the treatment of infertility

Progestogens

  • Progestogens are involved in the development of primary and secondary sexual characteristics at puberty
  • Progestogens have a longer half-life when administered intramuscularly compared to orally
  • Drospirenone may raise serum potassium levels and pose a risk of hyperkalemia when combined with drugs that increase potassium
  • Mifepristone is an antiprogestin used for the termination of pregnancy when combined with misoprostol
  • Progestins thicken the cervical mucus

Contraceptives

  • Combination oral contraceptives contain both estrogen and progestin
  • Progestin-only pills are suitable for women who are breastfeeding or have intolerance to estrogen-containing products
  • Injectable progestin can lead to weight gain and osteoporosis after prolonged use
  • Long-acting reversible contraceptives include progestin implants and progestin intrauterine devices
  • Emergency contraception with a single high dose of levonorgestrel can be used within 5 days of unprotected intercourse

Androgens

  • Testosterone is the most important androgen synthesized in the testis, ovaries, and adrenal glands in males and females
  • Testosterone is primarily involved in the normal maturation of male and sperm production
  • Danazol has weak androgenic activity but has antiestrogenic activity as well
  • Testosterone is used in females with menopausal symptoms unresponsive to estrogen alone

Test your knowledge about estrogens and androgens, the sex hormones produced by gonads, their role in conception, embryonic maturation, development of primary and secondary sexual characteristics at puberty, and their therapeutic uses such as contraception, management of menopausal symptoms, and hormone replacement therapy.

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