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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

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Adrenal gland disorders manifest when the production of adrenal hormones deviates from the norm, resulting in either excessive or insufficient concentrations.
Adrenal insufficiency, characterized by insufficient cortisol and aldosterone production, leads to conditions like Addison's disease. This disorder, affecting the adrenal cortex, exhibits symptoms such as skin bronzing, dehydration, low blood pressure, fatigue, and weight loss. Congenital adrenal hyperplasia, a genetic ailment causing...
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Hormones of the Adrenal Glands01:31

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Adrenal hormones play a pivotal role in maintaining the body's electrolyte balance and orchestrating responses to stress, showcasing the intricate functions of the adrenal cortex and medulla.
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Anatomy of the Adrenal Glands01:17

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The adrenal or supra-renal glands, situated above the kidneys and aligned with the twelfth rib, are paired pyramid-shaped structures crucial for the body's stress response. During stress, these glands secrete hormones vital for adaptive physiological reactions.
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Hypothalamic-Pituitary Axis01:37

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The response to stress—be it physical or psychological, acute or chronic—involves activation of the Hypothalamic-Pituitary-Adrenal (HPA) axis. The HPA axis is part of the neuroendocrine system because it involves both neuronal and hormonal communication. Its function is to regulate homeostatic systems—metabolic, cardiovascular, and immune—providing the necessary means to respond to a stressor.
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Adrenergic agonists have diverse therapeutic uses across various medical conditions and emergencies.
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Allergies and...
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Physiological Foundation of Stress01:24

Physiological Foundation of Stress

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Stress triggers a coordinated physiological response involving the sympathetic nervous system (SNS) and the hypothalamic-pituitary-adrenal (HPA) axis. This dual activation ensures that the body is prepared for both immediate and prolonged stress management. The process begins with the perception of a stressor. This initial phase activates the SNS, leading to the rapid release of adrenaline (epinephrine) from the adrenal glands.
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A Novel Method: Super-selective Adrenal Venous Sampling
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Adrenal insufficiency.

Stefanie Hahner1, Richard J Ross2, Wiebke Arlt3,4

  • 1Department of Medicine I, Division of Endocrinology and Diabetology, University Hospital Wuerzburg, Wuerzburg, Germany. Hahner_S@ukw.de.

Nature Reviews. Disease Primers
|March 12, 2021
PubMed
Summary
This summary is machine-generated.

Adrenal insufficiency (AI) involves cortisol deficiency from adrenal, pituitary, or hypothalamic issues. Management focuses on hormone replacement and preventing adrenal crisis through education and emergency preparedness.

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Area of Science:

  • Endocrinology
  • Internal Medicine

Background:

  • Adrenal insufficiency (AI) is a critical endocrine disorder resulting from insufficient cortisol production.
  • AI encompasses primary (adrenal failure), secondary (pituitary), and tertiary (hypothalamic) forms, with tertiary AI often linked to exogenous glucocorticoid use.

Purpose of the Study:

  • To provide comprehensive insights into the epidemiology, mechanisms, and management of adrenal insufficiency.
  • To highlight the specific challenges of managing AI during pregnancy and long-term.
  • To emphasize the identification and prevention of life-threatening adrenal emergencies.

Main Methods:

  • Diagnosis relies on measuring adrenal corticosteroid hormones, regulatory peptides, and performing stimulation tests.
  • Therapeutic strategies aim to replicate physiological diurnal cortisol secretion patterns.
  • Prevention involves patient education, emergency cards, and injection kits.

Main Results:

  • AI symptoms are often nonspecific, leading to delayed diagnosis.
  • Effective management requires tailored hormone replacement therapy.
  • Proactive identification and management of adrenal emergencies are crucial for patient outcomes.

Conclusions:

  • Adrenal insufficiency necessitates careful diagnosis and management, particularly during pregnancy.
  • Mimicking natural cortisol rhythms is key to successful hormone replacement.
  • Preventive measures are vital to mitigate the risks of acute adrenal events.