Growth Hormone Agonists

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Questions and Answers

What is the primary mechanism by which growth hormone agonists exert their effects?

  • Blocking the action of somatostatin.
  • Directly binding to GH receptors on target tissues. (correct)
  • Stimulating the release of insulin-like growth factor 1 (IGF-1) from the liver
  • Inhibiting the production of catabolic hormones.

Why is the presence of closed epiphyses considered a contraindication for growth hormone agonist therapy?

  • GH agonists are ineffective in individuals with open epiphyses.
  • Closed epiphyses indicate that natural growth is completed, and further GH stimulation is ineffective and potentially harmful. (correct)
  • GH agonists can cause the epiphyses to close prematurely.
  • Closed epiphyses indicate an increased risk of developing antibodies against the growth hormone

Which of the following is a potential adverse effect associated with growth hormone agonist therapy?

  • Increased adrenal function.
  • Decreased risk of injection site reactions
  • Improved glucose tolerance.
  • Development of antibodies that inactivate the hormone replacement. (correct)

In which of the following conditions would growth hormone agonists be indicated?

<p>Growth hormone deficiencies (B)</p> Signup and view all the answers

Why should caution be exercised when administering growth hormone agonists to patients with underlying cranial lesions?

<p>GH agonists may exacerbate the growth of existing cranial lesions. (C)</p> Signup and view all the answers

Which of the following drug interactions is a concern when using growth hormone agonists?

<p>Drugs using the cytochrome P450 (C)</p> Signup and view all the answers

Why might the use of growth hormone agonists be considered an abuse in the body building industry?

<p>Due to their potential to enhance muscle growth and athletic performance beyond normal levels (D)</p> Signup and view all the answers

What is the relationship between glucocorticoids and growth hormone agonists?

<p>Glucocorticoids can counteract the growth-promoting effects of GH agonists. (B)</p> Signup and view all the answers

Which of the following adverse effects of growth hormone agonists is most related to water balance?

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

A patient on somatropin reports symptoms of fatigue, weight gain, and constipation. Which potential adverse effect should the healthcare provider suspect?

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

Flashcards

Growth Hormone Agonists: Core Purpose

Stimulates overall growth and production of protein by directly binding to GH receptors on target tissues.

Names of GH Agonists

Somapacitan and Somatropin.

Indications of GH Agonists

Treatment of GH deficiencies. Can be abused in the body building industry.

Contraindications of GH Agonists

Known allergy, presence of closed epiphyses (growth plates; indicates natural growth is finished).

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Cautions with GH Agonists

Underlying cranial lesions, acute critical illness, glucose intolerance.

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Drug-Drug Interactions with GH Agonists

Glucocorticoids and drugs using the cytochrome P450.

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Adverse Effects of GH Agonists

Injection site reactions, edema, myalgia, arthralgia, development of antibodies that inactivate the hormone replacement, hypoadrenalism, hypothyroidism, and pancreatitis.

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Study Notes

  • Growth Hormone Agonists stimulate overall growth and protein production by directly binding to GH receptors on target tissues.

Names

  • Somapacitan
  • Somatropin

Indications

  • Used for the treatment of GH deficiencies
  • Can be abused in the body building industry

Adverse Effects

  • Injection site reactions
  • Edema
  • Myalgia
  • Arthralgia
  • Development of antibodies that inactivate the hormone replacement
  • Hypoadrenalism
  • Hypothyroidism
  • Pancreatitis

Contraindication

  • Known allergy
  • Presence of closed epiphyses (growth plates), indicating that natural growth is finished

Cautions

  • Underlying cranial lesions
  • Acute critical illness
  • Glucose intolerance

Drug-Drug

  • Glucocorticoids
  • Drugs using the cytochrome P450

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