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Related Concept Videos

Glomerular Filtration01:15

Glomerular Filtration

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The filtration membrane in the renal system is a highly specialized structure essential for filtering blood. It consists of glomerular capillaries and podocytes, forming a selective barrier that permits the passage of water and small solutes while restricting most plasma proteins and blood cells.
Components of the Filtration Membrane
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Glomerular Filtration Rate and its Regulation01:28

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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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Glomerular Filtration: Net Filtration Pressure01:26

Glomerular Filtration: Net Filtration Pressure

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Glomerular filtration, a key process in the kidneys, is regulated by three main pressures: Glomerular blood hydrostatic pressure (GBHP), Capsular hydrostatic pressure (CHP), and Blood colloid osmotic pressure (BCOP).
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Renal Drug Excretion: Glomerular Filtration01:02

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The kidney serves as the primary organ responsible for eliminating drugs and their metabolites from the body. This process, known as renal elimination, starts with glomerular filtration and results in urine formation. Each kidney houses millions of functional units called nephrons, where urine production occurs. A nephron has two main components: a renal corpuscle and a renal tubule.
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Renal Corpuscle01:20

Renal Corpuscle

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The glomerulus and Bowman's capsule are two essential components of the nephron, which is the functional unit of the kidney. These microscopic structures play a critical role in the process of blood filtration to produce urine.
Glomerulus: Structure and Function
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Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration01:29

Physiology of the Genitourinary System I: Renal Blood Flow and Glomerular Filtration

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The kidneys are vital organs responsible for regulating blood filtration, waste excretion, and fluid balance, all of which are crucial for maintaining homeostasis. Renal physiology examines renal blood flow, glomerular filtration, and urine formation, ensuring the body’s internal environment remains stable.Renal Blood FlowThe kidneys receive about 20-25% of the cardiac output, typically around 1200 mL of blood per minute in an average adult. Blood flows into the kidneys through the renal...
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Exploring the link between selective glomerular filtration and intima media thickness.

Ronja Lundbergs1, Nora Bimer Annell1, Cecilia Kennbäck2

  • 1Faculty of Medicine, Lund University, Sweden.

Scandinavian Journal of Clinical and Laboratory Investigation
|November 12, 2025
PubMed
Summary

Selective glomerular hypofiltration syndrome (SGHS) is linked to atherosclerosis progression, particularly in women. Kidney function decline impacts carotid artery intima-media thickness (IMT) differently by sex.

Keywords:
Atherosclerosischronic kidney diseasecystatin Cglomerular filtration rateselective glomerular hypofiltration

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Area of Science:

  • Nephrology
  • Cardiology
  • Epidemiology

Background:

  • Early kidney function decline, termed selective glomerular hypofiltration syndrome (SGHS), may involve atherosclerosis-promoting proteins.
  • Subclinical atherosclerosis, assessed by intima-media thickness (IMT), is a predictor of cardiovascular events.

Purpose of the Study:

  • To investigate the association between SGHS and markers of kidney function with subclinical atherosclerosis (IMT).
  • To determine if these associations differ between men and women.

Main Methods:

  • Analysis of 2,902 individuals from the 'Malmö Diet Cancer Study' over 17 years.
  • Kidney function estimated using cystatin C (eGFRcys) and creatinine (eGFRcr) based equations.
  • Carotid artery intima-media thickness (IMTCCA and IMTBULB) measured at baseline and follow-up.

Main Results:

  • In women, the eGFRcys/eGFRcr ratio correlated with IMTBULB progression and plaque presence.
  • In men, a faster decline in eGFRcys predicted plaque presence (IMTBULB > 1.5 mm).
  • SGHS was associated with IMT progression and plaque presence in women, while in men, only eGFRcys decline was linked to plaque.

Conclusions:

  • Kidney function, particularly SGHS, is associated with subclinical atherosclerosis progression, with sex-specific differences observed.
  • These findings highlight the importance of monitoring kidney function in relation to cardiovascular risk, especially in women.