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Related Concept Videos

Kidney Structure01:45

Kidney Structure

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.
Cells of the Innate Immune Response01:28

Cells of the Innate Immune Response

The innate immune response is an immediate and non-specific response against pathogens, acting swiftly to prevent the spread of infections. The primary cells involved in this response are phagocytes and natural killer (NK) cells.
Phagocytes
Phagocytes police the peripheral tissues by removing cellular debris and responding to the invasion of foreign substances or pathogens. Many phagocytes attack and remove microorganisms even before lymphocytes detect them. The human body has two general...
Immune Surveillance by NK Cells and Phagocytes01:25

Immune Surveillance by NK Cells and Phagocytes

Immune surveillance is an integral part of the innate immune system, involving the continuous monitoring of peripheral tissues to detect and respond to pathogens, infected cells, or cancerous cells. This surveillance is conducted primarily by natural killer (NK) cells and phagocytes, which employ distinct but complementary mechanisms to identify and eliminate threats.
Natural Killer Cells: The Fast Responders
NK cells are large granular lymphocytes found in the blood and lymphatic system. These...
External Anatomy of the Kidney01:21

External Anatomy of the Kidney

The kidneys are a pair of bean-shaped organs in the human body that play a critical role in maintaining overall health. They filter out waste products from the blood, regulate blood pressure, maintain electrolyte balance, and stimulate the production of red blood cells.
The kidneys are located in the retroperitoneal space on either side of the vertebral column, protected posteriorly by the 11th and 12th ribs. The right kidney sits slightly lower than the left owing to the presence of the liver...
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...
Chronic Inflammation: Introduction01:12

Chronic Inflammation: Introduction

Chronic inflammation is a prolonged, dysregulated immune response that persists for weeks to years when the inciting stimulus is difficult to eradicate or when self‑antigens drive ongoing reactivity. Morphologically, it is defined by mononuclear cell infiltration, progressive tissue destruction, and concurrent attempts at healing via angiogenesis and fibrosis. Compared with acute inflammation, edema is less prominent while cellular infiltration predominates; triggers include persistent...

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Related Experiment Video

Updated: Jun 26, 2026

Renal Ischaemia Reperfusion Injury: A Mouse Model of Injury and Regeneration
12:27

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

Published on: June 7, 2014

Macrophages and the kidney.

Heather M Wilson1, David Walbaum, Andrew J Rees

  • 1Department of Medicine and Therapeutics, University of Aberdeen, Institute of Medical Sciences, Foresterhill, Aberdeen AB25 2ZD, UK. h.m.wilson@abdn.ac.uk

Current Opinion in Nephrology and Hypertension
|April 10, 2004
PubMed
Summary
This summary is machine-generated.

Macrophages play diverse roles in kidney injury, shifting from solely causing damage to aiding in repair. Understanding their activation states is key to developing new treatments for renal disease.

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Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry
07:14

Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry

Published on: October 18, 2016

Rapid Depletion of Renal Macrophages Using Human CD59/Intermedilysin Cell Ablation Tool
10:15

Rapid Depletion of Renal Macrophages Using Human CD59/Intermedilysin Cell Ablation Tool

Published on: May 9, 2025

Related Experiment Videos

Last Updated: Jun 26, 2026

Renal Ischaemia Reperfusion Injury: A Mouse Model of Injury and Regeneration
12:27

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

Published on: June 7, 2014

Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry
07:14

Phenotypic Characterization of Macrophages from Rat Kidney by Flow Cytometry

Published on: October 18, 2016

Rapid Depletion of Renal Macrophages Using Human CD59/Intermedilysin Cell Ablation Tool
10:15

Rapid Depletion of Renal Macrophages Using Human CD59/Intermedilysin Cell Ablation Tool

Published on: May 9, 2025

Area of Science:

  • Renal pathology
  • Immunology
  • Cell biology

Background:

  • Macrophage infiltration is a key feature of renal injury.
  • Macrophages have a heterogeneous role in inflammation, including tissue repair.

Purpose of the Study:

  • To review recent advances in macrophage biology.
  • To highlight macrophage activation states and their regulation.
  • To discuss the relevance of macrophages in renal disease.

Main Methods:

  • Literature review of recent advances in macrophage biology.
  • Analysis of studies on macrophage recruitment and differentiation.
  • Examination of experimental models of renal inflammation.

Main Results:

  • New insights into monocyte recruitment and macrophage differentiation.
  • Evidence for macrophage heterogeneity in promoting or downregulating inflammation.
  • Understanding factors that regulate macrophage pro-inflammatory or reparative functions.

Conclusions:

  • Modulating macrophage activation can attenuate renal inflammation.
  • Exploiting macrophage reparative attributes offers therapeutic potential.
  • Understanding macrophage roles in renal inflammation aids in healing.