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Related Concept Videos

Adrenal Gland Disorders01:27

Adrenal Gland Disorders

1.3K
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

Hormones of the Adrenal Glands

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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.
The adrenal cortex, a powerhouse of hormone synthesis, generates over two dozen corticosteroid hormones. The zona glomerulosa produces mineralocorticoids, exemplified by aldosterone, influencing the electrolyte composition of body fluids. The synthesis of glucocorticoids such as cortisol and...
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Hypothalamic-Pituitary Axis01:37

Hypothalamic-Pituitary Axis

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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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Smooth Endoplasmic Reticulum01:21

Smooth Endoplasmic Reticulum

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Smooth endoplasmic reticulum or smooth ER is a sub-organelle with specialized functions in animal cells and plant cells. It is often associated with the tubule morphology of the endoplasmic reticulum.
The ER provides optimal conditions for synthesizing steroid hormones and lipids, such as phospholipids and triglycerides. Traditionally, lipid metabolism was considered to be a smooth ER function. However, there is no direct evidence to prove that rough ER is completely excluded from lipid...
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Anatomy of the Adrenal Glands01:17

Anatomy of the Adrenal Glands

1.8K
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.
These glands possess a distinctive yellow tinge due to the stored cholesterol and fatty acids required for hormone synthesis. They are encased in a fibrous capsule and cushioned by fat.
The adrenal gland comprises two distinct...
1.8K
Renal Tubule and Collecting Duct01:24

Renal Tubule and Collecting Duct

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The renal tubule is divided into three parts: the proximal convoluted tubule (PCT), the Loop of Henle (LOH), and the distal convoluted tubule (DCT).
Proximal Convoluted Tubule (PCT):
The PCT is the initial segment of the renal tubule, extending from the Bowman's capsule that encloses the glomerulus. Its convoluted structure and microvilli-lined cells increase the surface area for reabsorption. The PCT reabsorbs glucose, amino acids, sodium, and water from the filtrate, ensuring essential...
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Related Experiment Video

Updated: May 28, 2025

A Novel Method: Super-selective Adrenal Venous Sampling
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Congenital Adrenal Hyperplasia.

Sarah K Anisowicz, Karen S Vogt

    Pediatric Annals
    |February 10, 2025
    PubMed
    Summary

    Congenital adrenal hyperplasia (CAH) is a rare genetic disorder affecting hormone production. Early recognition of its varied presentation and understanding treatment are vital for optimal outcomes in children.

    Area of Science:

    • Pediatric Endocrinology
    • Genetics
    • Metabolic Disorders

    Background:

    • Congenital adrenal hyperplasia (CAH) is a rare autosomal recessive disorder.
    • It results in impaired cortisol and often aldosterone production.
    • CAH requires lifelong hormone replacement therapy.

    Purpose of the Study:

    • To summarize the clinical presentation of CAH in infants.
    • To highlight the importance of understanding CAH diagnosis and management.
    • To emphasize the need for timely intervention to optimize pediatric outcomes.

    Main Methods:

    • Review of clinical manifestations in affected infants.
    • Discussion of diagnostic approaches including newborn screening.
    • Overview of current treatment strategies for CAH.

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    Main Results:

    • Female infants often present at birth with virilized genitalia.
    • Male infants may be diagnosed via newborn screening or during adrenal crisis.
    • CAH diagnosis necessitates lifelong hormone management.

    Conclusions:

    • Recognizing the diverse presentations of CAH is crucial for early diagnosis.
    • Effective management of CAH is essential for preventing adrenal crisis and ensuring healthy development.
    • Understanding CAH is critical for pediatric healthcare providers to optimize patient outcomes.