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Related Concept Videos

Hormonal Regulation01:33

Hormonal Regulation

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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.
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Heart Failure Drugs: Inhibitors of Renin-Angiotensin System01:26

Heart Failure Drugs: Inhibitors of Renin-Angiotensin System

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The activation of the sympathetic nervous system and the renin-angiotensin-aldosterone system (RAAS) contributes to cardiac remodeling, and inhibiting the RAAS is a pharmacological target in heart failure management. As a result, neurohumoral modulation is a crucial treatment principle for managing heart failure. This approach involves using medications like ACE inhibitors (ACEIs), angiotensin receptor blockers (ARBs), β-blockers, mineralocorticoid receptor antagonists (MRAs), and neutral...
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Introduction to Urinary System01:13

Introduction to Urinary System

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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...
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Glomerular Filtration Rate and its Regulation01:28

Glomerular Filtration Rate and its Regulation

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The Glomerular Filtration Rate (GFR) is a measure of kidney function, reflecting the volume of filtrate formed per minute in the kidneys. On average, GFR is approximately 125 mL/min in males and 105 mL/min in females. Maintaining a relatively constant GFR is essential for the kidneys to effectively regulate body fluid homeostasis and maintain extracellular stability.
GFR regulation involves two primary intrinsic controls: the myogenic and tubuloglomerular feedback mechanisms.
The myogenic...
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Renal Regulation of Acid-Base Balance01:29

Renal Regulation of Acid-Base Balance

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Metabolic reactions in the body produce nonvolatile acids, such as sulfuric acid, which generate an acid load of approximately 1 mEq of H+ per kilogram of body weight daily. Excreting H+ in the urine is essential to balance this acid load.
In the kidneys, cells within the proximal convoluted tubules (PCT) and the collecting ducts secrete hydrogen ions (H+) into the tubular fluid. Specifically, in the PCT, Na+/H+ antiporters secrete H+ while reabsorbing Na+.
However, the intercalated cells in...
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Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion01:22

Physiology of the Genitourinary System II: Tubular Reabsorption and Secretion

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The kidneys maintain homeostasis through filtration, reabsorption, and secretion. Tubular reabsorption and secretion are crucial in forming urine and regulating electrolytes, water balance, and waste elimination.Tubular Reabsorption and Secretion ProcessesTubular reabsorption is the process that reclaims essential substances such as electrolytes, glucose, amino acids, and water from the glomerular filtrate back into the bloodstream. This is achieved through passive and active transport...
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Related Experiment Video

Updated: Mar 16, 2026

Renal Ischaemia Reperfusion Injury: A Mouse Model of Injury and Regeneration
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Renal Ischaemia Reperfusion Injury: A Mouse Model of Injury and Regeneration

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Biologic modulation in renal regeneration.

Benedetta Mazzinghi1, Paola Romagnani1,2,3, Elena Lazzeri3

  • 1a Nephrology Unit , Meyer Children's University Hospital , Florence , Italy.

Expert Opinion on Biological Therapy
|August 5, 2016
PubMed
Summary

Harnessing the kidney's natural repair mechanisms offers a promising new avenue for treating chronic kidney disease (CKD). Research into renal progenitor cells aims to regulate their regenerative capacity for effective kidney repair.

Keywords:
AKICKDChronic renal failureglomerulusprogressiontubule

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Last Updated: Mar 16, 2026

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Area of Science:

  • Nephrology
  • Regenerative Medicine
  • Cell Biology

Background:

  • Chronic kidney disease (CKD) presents a growing global health challenge.
  • The discovery of renal progenitor cells has spurred interest in regenerative therapies for kidney repair.

Purpose of the Study:

  • To review the current understanding of glomerular regeneration mediated by renal progenitors.
  • To explore methods for modulating progenitor cell behavior for therapeutic benefit in kidney disease.

Main Methods:

  • Discussion of existing knowledge on renal progenitor cell function in regeneration.
  • Analysis of chemical and biological agents that influence progenitor cell activity.
  • Review of pathways involved in tubular repair and fibrotic responses.

Main Results:

  • Regulating renal progenitor cell response is crucial to prevent failed regeneration after injury.
  • Targeting specific pathways can promote renal regeneration over fibrosis.
  • Understanding podocyte replacement is key to glomerular repair.

Conclusions:

  • Modulating endogenous renal regenerative capacity is an emerging therapeutic strategy for kidney diseases.
  • Translating research on kidney regeneration into clinical practice holds potential for novel CKD treatments.