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Related Concept Videos

Hormonal Regulation01:33

Hormonal Regulation

The renin-aldosterone system is an endocrine system which guides the renal absorption of water and electrolytes, thus managing blood pressure and osmoregulation. Activation of the system begins in the kidneys with a small cluster of cells adjacent to the afferent and efferent blood vessels of the renal corpuscle. As the nephrons are filtering blood, juxtaglomerular cells monitor blood pressure. If they detect a decrease in pressure, they release the hormone renin into the bloodstream.
Introduction to Urinary System01:13

Introduction to Urinary System

The urinary system consists of two kidneys, two ureters, the urinary bladder, and the urethra.
The kidneys are bean-shaped organs located in the retroperitoneal space, on either side of the vertebral column, between the T12 and L3 vertebrae. They are partially protected by the rib cage and surrounded by perirenal fat, which provides cushioning. They are responsible for urine formation and play critical roles in regulating blood pressure, electrolyte levels, and hormone production. The ureters...
Antihypertensive Drugs: Potassium-Sparing Diuretics01:28

Antihypertensive Drugs: Potassium-Sparing Diuretics

Liddle syndrome is a genetically inherited form of hypertension characterized by the overactivity of epithelial sodium channels in the nephron, the functional unit of the kidney. This heightened activity leads to increased sodium reabsorption and excessive excretion of potassium. To counteract this, potassium-sparing diuretics such as amiloride are used. They function by blocking these sodium channels, thereby reducing the influx of sodium into the epithelial cells and minimizing the loss of...
Regulation of Sodium and Potassium01:26

Regulation of Sodium and Potassium

The regulation of sodium and potassium ion concentrations in the human body is a complex process governed primarily by hormones such as aldosterone, antidiuretic hormone (ADH), and atrial natriuretic peptide (ANP).
Sodium Regulation
Sodium ions make up approximately 90% of extracellular cations, with a normal blood plasma concentration of 136–148 mEq/L. A decrease in blood volume and pressure triggers the release of renin from granular cells in the juxtaglomerular complex (JGC), primarily in...
Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors01:30

Antihypertensive Drugs: Angiotensin-Converting Enzyme Inhibitors

Angiotensin-converting enzyme (ACE), a vital component of the renin-angiotensin-aldosterone system, is abundant in lung endothelial cells. ACE converts the inactive decapeptide, angiotensin I, into the active octapeptide, angiotensin II. This potent vasoconstrictor narrows blood vessels, increasing resistance to blood flow and elevating blood pressure. Angiotensin II also stimulates aldosterone production, encouraging kidney cells to reabsorb more sodium and water from urine, thereby increasing...
Reabsorption and Secretion in the DCT and Collecting Duct01:26

Reabsorption and Secretion in the DCT and Collecting Duct

The early phase of the DCT manages the reabsorption of approximately 10-15% of filtered water, 5–10% of filtered sodium, and 5–10% of filtered chloride. This process is facilitated by Na+–Cl− symporters in apical membranes and sodium-potassium pumps, as well as Cl− leakage channels in basolateral membranes. The early DCT also stands out as a site where parathyroid hormone (PTH) stimulates calcium reabsorption, depending on the body's requirements.
The distal part of the DCT, along with the...

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Related Experiment Video

Updated: May 26, 2026

Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli
12:19

Single-channel Analysis and Calcium Imaging in the Podocytes of the Freshly Isolated Glomeruli

Published on: June 27, 2015

Aldosterone and the kidney.

V G Fourkiotis1, G Hanslik, F Hanusch

  • 1Department of Clinical Endocrinology, Charité Campus Mitte, Charité University Medicine Berlin, Berlin, Germany.

Hormone and Metabolic Research = Hormon- Und Stoffwechselforschung = Hormones Et Metabolisme
|December 14, 2011
PubMed
Summary
This summary is machine-generated.

Aldosterone, acting through the mineralocorticoid receptor (MR), contributes to kidney damage, particularly in primary hyperaldosteronism (PHA). This review examines aldosterone

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Published on: September 1, 2015

Area of Science:

  • Nephrology
  • Endocrinology
  • Cardiovascular Medicine

Background:

  • Aldosterone is a key regulator of blood pressure and fluid balance, acting via the mineralocorticoid receptor (MR).
  • Increasing evidence links aldosterone and MR activation to detrimental effects, especially in primary hyperaldosteronism (PHA).
  • PHA patients exhibit increased cardiovascular comorbidities and renal insufficiency, suggesting aldosterone's role in kidney injury pathogenesis.

Purpose of the Study:

  • To review the current understanding of aldosterone's effects on the kidney.
  • To explore the clinical and experimental evidence regarding aldosterone-induced kidney damage.

Main Methods:

  • This review synthesizes findings from clinical medicine and experimental studies.
  • Literature search focusing on aldosterone, mineralocorticoid receptor, primary hyperaldosteronism, and kidney injury.

Main Results:

  • Aldosterone, especially with high salt intake, promotes renal inflammation, fibrosis, podocyte injury, and mesangial cell proliferation.
  • Primary hyperaldosteronism is associated with a significantly higher risk of cardiovascular comorbidities and renal insufficiency.

Conclusions:

  • Aldosterone and its receptor play a critical role in the pathogenesis of kidney injury.
  • Understanding these mechanisms is crucial for managing patients with PHA and preventing renal complications.