PCOL MIDTERM 4 Flashcards

1
Q

System of ductless glands that secrete hormones

A

Endocrine system

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2
Q

Hormones are

A

“messenger molecules”

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3
Q

Endocrine system characterization

A
  • Circulate in the blood
  • Act on distant target cells
  • Target cells respond to the hormones for which they have receptors
  • The effects are dependent on the programmed response of the target cells
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4
Q

Hormones are just

A

Molecular triggers

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5
Q

2 Types of Endocrine Organs

A
  • Purely Endocrine Organs
  • Endocrine Cells in other organs
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6
Q

What Organs are Purely Endocrine

A
  • Pituitary gland
  • Pineal gland
  • Thyroid gland
  • Parathyroid glands
  • Adrenal: 2 glands
    • Cortex
    • Medulla
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7
Q

Endocrine cells in other organs

A
  • Pancreas
  • Thymus
  • Gonads
  • Hypothalamus
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8
Q

The control of metabolism, growth, and reproduction is mediated by a combination of neural and endocrine systems located in the hypothalamus and pituitary gland.

A

Hypothalamic- pituitary endocrine system

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9
Q

Mechanism of Hormone release

A

(a) Humoral
(b) Neural
(c) Hormonal

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10
Q

In response to changing levels of ions or nutrients in the blood

A

Humoral

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11
Q

Stimulation by nerves

A

Neural

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12
Q

Stimulation received from other hormones

A

Hormonal

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13
Q

It is the master endocrine organ

A

Hypothalamus

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14
Q

It is the master endocrine organ

A

Hypothalamus

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15
Q

It secretes releasing / inhibiting hormones

A

Hypothalamus

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16
Q

Pituitary gland consist of

A
  • Anterior lobe
  • Posterior lobe.
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17
Q

Connected to hypothalamus by a stalk of neurosecretory fibers and blood vessels, including a portal venous system that drains the hypothalamus and perfuses the anterior pituitary.

A

Pituitary gland

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18
Q

The posterior lobe hormones are synthesized in the _______ and transported via the _______in the stalk of the pituitary to the posterior lobe, from which they are released into the circulation.

A

(1) Hypothalamus
(2) Neurosecretory fibers

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19
Q

Sits in hypophyseal fossa: depression in sella turcica of sphenoid bone

A

Pituitary gland

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19
Q

What are the Divisions of Pituitary Gland

A
  • Anterior Pituitary
  • Posterior Pituitary
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20
Q

Pituitary secretes, how many hormones?

A

9

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21
Q

Anterior pituitary aka

A

Adenohypophysis

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22
Q

Posterior pituitary aka

A

Neurohypophysis

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23
Q

What are the hormones in Anterior pituitary

A
  1. TSH
  2. ACTH
  3. FSH
  4. LH
  5. GH
  6. PRL
  7. MSH
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24
Q

Full name of the ff:
1. TSH
2. ACTH
3. FSH
4. LH
5. GH
6. PRL
7. MSH

A
  1. (TSH) Thyroid-Stimulating Hormone or Thyrotropin
  2. (ACTH) Adrenocorticotropin
  3. (FSH) Follicle-Stimulating Hormone
  4. (LH) Luteinizing Hormone
  5. (GH) Growth hormone
  6. (PRL) Prolactin or (LTH) Luteotropic hormone
  7. (MSH) Melanocyte-Stimulating Hormone
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25
Q

What are the hormones in Posterior pituitary

A
  1. ADH (antidiuretic hormone), or vasopressin
  2. Oxytocin
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26
Q

Drugs that mimic or block the effects of hypothalamic and pituitary hormones have pharmacologic applications in three primary areas

A

Hormonal Agents

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27
Q

Drugs that mimic or block the effects of hypothalamic and pituitary hormones have pharmacologic applications in 3 primary areas:

A
  1. As replacement therapy for hormone deficiency states
  2. As antagonists for diseases caused by excess production of pituitary hormones
  3. As diagnostic tools for identifying several endocrine abnormalities.
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28
Q

GH Hypothalamic Hormone

A

Growth hormone-releasing hormone (GHRH) (+) Somatostatin (-)

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29
Q

TSH Hypothalamic Hormone

A

Thyrotropin releasing hormone (TRH) (+)

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30
Q

GH Target Organs

A
  • Liver
  • Bone
  • Muscle
  • Kidney
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31
Q

GH Primary Target Organ Hormone or Mediator

A

Insulin-like growth factor - I (IGF-1)

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32
Q

TSH Target Organ

A

Thyroid

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33
Q

TH Primary Target Organ Hormone or Mediator

A
  • Thyroxine
  • Triiodothyronine
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34
Q

ACTH Hypothalamic Hormone

A

Corticotropin releasing hormone (CRH) (+)

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35
Q

ACTH Target Organ

A

Adrenal cortex

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36
Q

ACTH Primary Target Organ Hormone or Mediator

A

Cortisol

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37
Q

FSH and LH Hypothalamic Hormone

A

Gonadotropin releasing hormone (GnRH) (+)

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38
Q

FSH and LH Target Organ

A

Gonads

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39
Q

FSH and LH Primary Target Organ Hormone and Mediator

A
  • Estrogen
  • Progesterone,
  • Testosterone
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40
Q

PRL Hypothalamic Hormone

A

Dopamine (-)

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41
Q

PRL Target Organ

A

Breast

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42
Q

PRL Primary Target Organ Hormone and Mediator

A

None

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43
Q

Required during childhood and adolescence

A

Growth Hormones

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44
Q

Contaminated prions can cause

A

Creutzfeldt-Jakob disease

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45
Q

_______ was isolated from the pituitaries of human cadavers.

A

Medicinal GH

46
Q

Recombinant form of GH

A

Somatropin

47
Q

Equivalent drug of GH

A

Somatrem

48
Q

can have a genetic basis, can be acquired as a result of damage to the pituitary or hypothalamus.

A

GH Deficiency

49
Q

An autosomal dominant genetic disease associated with growth failure, obesity, and carbohydrate intolerance.

A

Prader-Willi Syndrome

50
Q

(45 X karyotype and variants)

A

Turner syndrome

51
Q

ISS stands for

A

Idiopathic short stature

52
Q

Use by athletes for a purported increase in muscle mass and athletic performance.

A

Growth Hormones

53
Q

Why athletes use GH for

A

To increase in muscle mass and athletic performance

54
Q

What are the toxicity of GH

A
  1. Progression of scoliosis
  2. Edema
  3. Hyperglycemia
  4. Increased risk of otitis media
55
Q

What are the drugs of IGF-1 Analog

A
  • Mecasermin
  • Mecasermin rinfabate
56
Q

Mecasermin and Mecasermin rinfabate Clinical Use

A

Treatment of severe IGF-I deficiency that is not responsive to GH

57
Q

Adverse Effects of Mecasermin and Mecasermin rinfabate

A

Hypoglycemia by consumption of a snack or meal shortly before mecasermin administration

58
Q

What are the Excessive Growth Hormone

A

Acromegaly and Gigantism

59
Q

Acromegaly characteristic

A
  • Excess of GH while the epiphyseal plates are close
  • Unproportional features like hands and feet
60
Q

Gigantism characteristic

A
  • Excess of GH while the epiphyseal plates are open
  • Proportional features like hands and feet
61
Q

Treatment for Excessive GH

A
  1. Somatostatin analogs
  2. Dopamine receptor agonists, which reduce the production of GH
  3. Pegvisomant - GH receptor antagonist
62
Q

Somatostatin Mechanism Of Action

A

Inhibits the release of GH, TSH, glucagon, insulin, and gastrin.

63
Q

Somatostatin Adverse Effects

A

Hyperglycemia

64
Q

Octreotide and Lanreotide Adverse Effects

A
  • Nausea
  • Vomiting
  • Abdominal cramps
  • Flatulence
  • Steatorrhea
  • Vitamin B12 deficiency
65
Q

Pegvisomant Mechanism of Action

A

GH receptor antagonist

66
Q

Pegvisomant Adverse Effect

A

None

67
Q

These hormones serve complementary functions in the reproductive process.

A

Gonadotropins

68
Q

What hormones are considered gonadotropins?

A

FSH and LH

69
Q

FSH Effects in Men

A

✓ Primary regulator of spermatogenesis
✓ Stimulates the conversion of testosterone to estrogen.

70
Q

FSH Effects in Women

A

✓ Ovarian follicle development
✓ In the ovary- stimulates the conversion of androgens to estrogens

71
Q

LH Effects in Men

A

Main stimulus for testosterone synthesis

72
Q

LH Effects in Women

A

✓ In the ovary – stimulates androgen production
✓ Estrogen and progesterone production

73
Q

If pregnancy occurs, estrogen and progesterone production is under the control of?

A

Human Chorionic Gonadotropin (hCG).

74
Q

What are the Gonadotropin Analog

A
  • Menotropins
  • FSH Analog
  • LH Analog
  • hCG
75
Q

Recombinant form of hCG approved for the treatment of prepubertal cryptorchidism

A

Choriogonadotropin alfa

76
Q

Produced by the human placenta and excreted into the urine

A

hCG

77
Q

Recombinant form of human LH

A

Lutropin alfa

78
Q

Human menopausal gonadotropins (hMG)

A

Menotropin

79
Q

Extracted from the urine of postmenopausal women

A

Menotropin

80
Q

Purified extract of FSH and LH

A

Menotropin

81
Q

Purified preparation of human FSH extracted from the urine of postmenopausal women

A

Urofollitropin

82
Q

Recombinant forms of FSH

A

a. Follitropin alfa
b. Follitropin beta

83
Q

Gonadotropin Analog Clinical Uses

A

Used in states of infertility

84
Q

Gonadotropin Analog Clinical Uses in Men

A

Stimulate spermatogenesis

85
Q

Gonadotropin Analog Clinical Uses in Men

A

Induce ovulation

86
Q

Gonadotropin Analog Toxicity

A
  • Ovarian hyperstimulation syndrome
  • Ovarian enlargement
  • Multiple pregnancies
87
Q

Secreted by neurons in the hypothalamus

A

GnRH Analog

88
Q

Acetate salt of synthetic human GnRH

A

Gonadorelin

89
Q

Synthetic analogs / GnRH agonists long acting:

A
  • Goserelin
  • Histrelin
  • Leuprolide
  • Nafarelin
  • Triptorelin
90
Q

GnRH Analogs Clinical Uses

A

1) Female infertility
2) Male infertility
3) Prostate cancer
4) Controlled ovarian hyperstimulation
5) Endometriosis

91
Q

Syndrome of cyclical abdominal pain in premenopausal women that is due to the presence of estrogen - sensitive endometrium - like tissue outside the uterus.

A

Endometriosis

92
Q

GnRH Analogs Toxicity in Men

A
  • Hot flushes
  • Sweats
  • Edema
  • Gynecomastia
  • Decreased libido
  • Decreased hematocrit
  • Reduced bone density
93
Q

Drugs example of GnRH Antagonist

A

✓ Ganirelix
✓ Cetrorelix
✓ Degarelix

94
Q

Inhibit the secretion of FSH and LH

A

Degarelix

95
Q

GnRH Antagonists Clinical Use

A
  • Suppression of Gonadotropin Production
  • Advanced prostate cancer
96
Q

What are the 3 ovarian hormones?

A
  • Estradiol
  • Estrone
  • Estriol
96
Q

What are the synthetic estrogen medication

A
  • Ethinyl estradiol
  • Diethylstilbestrol
96
Q

Estrogen Uses

A

1) Oral contraceptive
2) Post-menopausal syndrome
3) Acne
4) Prostate cancer

97
Q

What are the Anti-Estrogen Class of Drugs

A
  • Estrogen Receptor Blockers
  • SERM (Selective Estrogen Receptor Modulators)
  • Aromatase Inhibitors
98
Q

Drugs example of Estrogen Receptor Blockers

A
  • Tamoxifen (Nolvadex)
  • Clomiphene (Clomid) → adjuvant therapy for Breast CA.
99
Q

Drugs example of SERM

A

Raloxifene (Evista) → reduce bone resorption in osteoporosis.

100
Q

Drugs example of Aromatase Inhibitors

A
  • Anastrazole (Arimidex)
  • Letrozole (Femara)
    → Used for BREAST CANCER
101
Q

Drugs example of Progestins

A
  • Progesterone
  • Levonorgestrel
  • Norethindrone
  • Medroxyprogesterone
    For endometrial growth for implantation
102
Q

Progestins Uses

A
  • Contraceptive
  • Dysmenorrhea
  • Endometriosis
103
Q

Drug example of Progestin Antagonists

A

Mifepristone (abortifacient)

104
Q

Types of Contraceptives

A
  • Post Coital Contraceptives
  • Chemical Contraceptives
  • Combination Contraceptives
  • Progestin Only Contraceptives
105
Q

Post Coital Contraceptives aka

A

“Morning after pills”

106
Q

Drugs for Post Coital Contraceptive

A
  • Ethinyl estradiol + Norgestrel
  • Conjugated Estrogen
  • Estrone
107
Q

Drug example for Chemical Contraceptive

A

Gossypol- destroys seminiferous tubule

108
Q

Drugs example for Combination Contraceptive

A
  1. Monophasic
  2. Biphasic
  3. Triphasic
109
Q

Drugs example of Progestin Only Contraceptive

A
  1. Minipill- Norethindrone + Norgestrel
  2. Implant- Norgestrel 216mg (Norplant)
  3. IM- Medroxyprogesterone (Depo-Provera)
  4. Intrauterine- Progestasert
109
Q

Drugs example of Progestin Only Contraceptive

A
  1. Minipill- Norethindrone + Norgestrel
  2. Implant- Norgestrel 216mg (Norplant)
  3. IM- Medroxyprogesterone (Depo-Provera)
  4. Intrauterine- Progestasert