Related Experiment Video

Updated: Jun 10, 2026

Multilevel Microdissection and Functional-Structural Profiling of Human Renal Arterial Branches
06:51

Multilevel Microdissection and Functional-Structural Profiling of Human Renal Arterial Branches

Published on: September 5, 2025

Glomerular hemodynamics and arterial function in normal individuals

Pierre Fesler1, Guilhem du Cailar, Jean Ribstein

  • 1Department of Internal Medicine, Hôpital Lapeyronie, Montpellier, France. p-fesler@chu-montpellier.fr

Journal of Hypertension
|August 20, 2010
PubMed

Insights

Arterial wave reflection, not stiffness, is linked to indicators of increased glomerular pressure in healthy individuals. This association persists independently of systemic blood pressure.

Area of Science:

  • Cardiovascular Physiology
  • Renal Physiology
  • Hemodynamics

Background:

  • Arterial stiffness and wave reflection are key indicators of cardiovascular health.
  • Glomerular hemodynamics play a crucial role in kidney function.
  • Understanding the interplay between arterial and renal hemodynamics is vital for assessing overall health.

Purpose of the Study:

  • To investigate the relationship between arterial function, specifically stiffness and wave reflection, and glomerular hemodynamics in healthy individuals.
  • To determine if arterial wave reflection or stiffness is more closely associated with markers of glomerular pressure.

Main Methods:

  • Assessed glomerular filtration rate (GFR) and effective renal plasma flow (ERPF) in 49 healthy normotensive participants.
  • Calculated filtration fraction (GFR/ERPF).
  • Measured arterial stiffness via carotid-femoral pulse wave velocity (PWV) and wave reflection using augmentation index (AIx) and reflection magnitude.

Main Results:

  • Pulse wave velocity (PWV) and wave travel time showed no independent correlation with renal hemodynamics or albuminuria.
  • Augmentation index (AIx) and reflection magnitude positively correlated with filtration fraction and urinary albumin-creatinine ratio (UACR).
  • Higher quartiles of reflection magnitude demonstrated progressively increased filtration fraction and UACR, independent of age, blood pressure, and heart rate.

Conclusions:

  • The amplitude of arterial wave reflection, not arterial stiffness, is associated with elevated glomerular pressure indicators (filtration fraction, UACR) in healthy individuals.
  • This relationship is independent of systemic blood pressure.
  • Findings suggest wave reflection as a potential non-invasive marker for assessing glomerular pressure dynamics.
Abstract

More Related Videos

Non-invasive Assessment of Microvascular and Endothelial Function05:41

Non-invasive Assessment of Microvascular and Endothelial Function

Published on: January 29, 2013

Related Concept Videos

Glomerular Filtration Rate and its Regulation01:28

Glomerular Filtration Rate and its Regulation

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...
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

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...
Arteries and Arterioles01:16

Arteries and Arterioles

Arteries, the vasculature responsible for transporting blood from the heart, possess robust walls capable of enduring the elevated pressures exerted by the heartbeat. Arteries near the heart are especially thick-walled and enriched with elastic fibers across their three tunics, classifying them as elastic or conducting arteries. These arteries, usually with a diameter exceeding 10 mm, are characterized by their ability to dilate in response to the blood pumped from the heart's ventricles and...
Hypertension and Regulation of Blood Pressure01:18

Hypertension and Regulation of Blood Pressure

Hypertension, the most common cardiovascular disease, is diagnosed through repeated measurements of elevated blood pressure. Its risks, including damage to the kidney, heart, and brain, are directly proportional to blood pressure levels. Starting from 115/75 mm Hg, the risk of cardiovascular disease doubles with each increment of 20/10 mm Hg. The diagnosis relies on blood pressure measurements, not on patient symptoms, as hypertension is often asymptomatic until end-organ damage is imminent or...
Serum Studies: Renal Function Tests01:24

Serum Studies: Renal Function Tests

Renal function tests are crucial for assessing kidney health, monitoring disease progression, and evaluating the kidneys' efficiency in waste elimination, fluid balance, and electrolyte regulation. These tests offer critical insights into kidney function, even though routine measurements may appear normal until there is a significant decline in the glomerular filtration rate or GFR. Typically, signs of kidney impairment only become evident when the GFR falls to about 50% of its normal level.
Renal Corpuscle01:20

Renal Corpuscle

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
The glomerulus is a tiny, intricate network of capillaries located at the beginning of the nephron. It's enveloped by the Bowman's capsule and receives its blood supply from an afferent arteriole, which divides into numerous capillaries...