Related Experiment Video
Updated: Jan 7, 2026
10:14
An Efficient Sieving Method to Isolate Intact Glomeruli from Adult Rat Kidney
Published on: November 1, 2018
14.4K
The native human glomerulus features a slit diaphragm resembling a densely interwoven fishnet
Deborah Moser1, Alexandra N Birtasu1, Lilli Skaer1
1Buchmann Institute for Molecular Life Sciences, Goethe University Frankfurt, Frankfurt, Germany.
JCI Insight
|January 2, 2026
Summary
The human glomerulus contains a unique slit diaphragm, crucial for kidney filtration. This structure acts like a fine mesh, preventing large molecules from passing into the urine.
Area of Science:
- Nephrology and kidney physiology.
- Cellular biology of filtration barriers.
Background:
- The glomerulus is the primary filtering unit of the kidney.
- The slit diaphragm is a key component of the glomerular filtration barrier.
Purpose of the Study:
- To describe the structural characteristics of the native human glomerular slit diaphragm.
- To highlight its functional importance in kidney filtration.
Main Methods:
- Utilized advanced microscopy techniques to visualize glomerular structures.
- Analyzed the ultrastructure of the human glomerular filtration barrier.
Main Results:
- The human glomerular slit diaphragm exhibits a dense, interwoven mesh-like appearance.
- This structure is composed of specialized protein interactions.
Conclusions:
- The fishnet-like structure of the slit diaphragm is essential for selective kidney filtration.
- Understanding this ultrastructure is vital for diagnosing and treating kidney diseases.
Related Concept Videos
01:15Glomerular Filtration
4.6K
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
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
Components of the Filtration Membrane
The filtration process involves three key layers: the glomerular endothelial cells, the basement membrane, and the podocyte-formed filtration slits.
4.6K
01:20Renal Corpuscle
6.8K
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...
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...
6.8K
01:10Nephrons
6.2K
The kidneys are intricate organs with millions of working units known as nephrons. Each nephron features two major structures: the renal corpuscle, which facilitates blood plasma filtration, and the renal tubule, which handles the glomerular filtrate. Blood supply is directly linked to the nephrons. The renal corpuscle consists of the glomerulus, a capillary network, and the Bowman's capsule, a double-walled epithelial structure that encases the glomerulus. The filtering of blood plasma...
6.2K
01:45Kidney Structure
74.6K
The kidneys are two large bean-shaped organs located in the upper abdomen. They filter the blood several times a day to remove toxins and rebalance water and electrolytes of the circulatory system via the renal veins. The kidneys receive blood directly from the heart via the renal arteries. These arteries enter the kidney at the hilum, the concave surface of the bean, where they branch and divide into smaller vessels and capillaries.
74.6K
01:26Glomerular Filtration: Net Filtration Pressure
7.4K
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).
GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal...
GBHP, with an average value of 55 mmHg, promotes filtration by pushing water and solutes through the filtration membrane. This is balanced by two opposing forces: CHP, a "back pressure" exerted against the filtration membrane by fluid already in the capsular space and renal...
7.4K
01:25Glaucoma: Overview
1.2K
Glaucoma is an eye condition characterized by increased intraocular pressure that damages the retina and optic nerve, leading to irreversible blindness if left untreated. The human eye has various components, including the cornea, iris, pupil, lens, and optic nerve. Aqueous humor is secreted by the epithelium of the ciliary body in the posterior chamber and flows through the trabecular meshwork and canal of Schlemm, maintaining normal intraocular pressure. The trabecular meshwork and the canal...
1.2K