Related Experiment Video
Updated: Apr 26, 2026
10:15
Identification of the Source of Secreted Proteins in the Kidney by Brefeldin A Injection
Published on: November 10, 2021
1.8K
Brain-kidney crosstalk
Critical Care (London, England)
|July 22, 2014
Summary
Acute kidney injury (AKI) can cause encephalopathy through inflammation and metabolic changes. Brain injury can also impair kidney function, highlighting the bidirectional relationship between these organs.
Area of Science:
- Nephrology
- Neurology
- Pathophysiology
Background:
- Acute kidney injury (AKI) frequently leads to encephalopathy and cognitive dysfunction.
- Sepsis is a common trigger, but AKI itself promotes neuroinflammation and blood-brain barrier permeability.
- Metabolic disturbances like acidosis and hyperosmolarity in AKI worsen brain function.
Purpose of the Study:
- To elucidate the mechanisms linking acute kidney injury to encephalopathy.
- To explore the impact of acute brain injury on renal function.
Main Methods:
- Review of pathophysiological pathways connecting kidney and brain dysfunction.
- Analysis of molecular mechanisms including transporter function and drug accumulation.
Main Results:
- AKI causes neuroinflammation, increased blood-brain barrier permeability, and altered neurotransmitter function.
- Nitrogen metabolism products and acidosis contribute to brain edema in AKI.
- Drug accumulation due to impaired kidney function exacerbates encephalopathy risk.
- Acute brain injury can induce renal dysfunction, electrolyte imbalances, and inflammation.
Conclusions:
- The brain is highly susceptible to the systemic effects of AKI, leading to encephalopathy.
- Bidirectional interactions exist, where brain injury negatively impacts kidney function.
Related Concept Videos
01:18Blood and Nerve Supply to the Kidney
6.0K
The kidneys are vital organs responsible for filtering and cleaning blood, removing waste products, and regulating electrolyte levels. To perform these essential functions, they require a constant and robust blood supply.
Bloody Supply to the Kidneys:
The kidneys receive their blood supply from the renal arteries, which branch off from the abdominal aorta—the main artery supplying the abdomen and lower body. The renal arteries enter the kidneys at the hilum, a notch on the medial side of...
Bloody Supply to the Kidneys:
The kidneys receive their blood supply from the renal arteries, which branch off from the abdominal aorta—the main artery supplying the abdomen and lower body. The renal arteries enter the kidneys at the hilum, a notch on the medial side of...
6.0K
01:45Kidney Structure
57.2K
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.
57.2K
01:29Renal Regulation of Acid-Base Balance
2.5K
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...
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...
2.5K
01:29Acute Kidney Injury II: Pathophysiology
2.2K
Acute kidney injury (AKI) causes are categorized into three primary categories based on the location of the injury: prerenal, intrarenal (or intrinsic), and postrenal causes. This classification guides clinical management and illustrates how different pathways can impair kidney function.Etiology and Pathophysiology of Acute Kidney Injury1. Prerenal causesEtiology: Prerenal Acute Kidney Injury, the most common type, occurs when reduced blood flow to the kidneys decreases filtration capacity...
2.2K
01:12Internal Anatomy of the Kidney
8.6K
The kidneys are essential organs in the human body, performing a myriad of tasks that maintain homeostasis and overall health.
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...
Anatomical Position and Dimensions
The kidneys are retroperitoneal organs positioned against the posterior abdominal wall on either side of the spine, roughly between the twelfth thoracic and third lumbar vertebrae. Each kidney is typically 10-12 cm long, 5-6 cm wide, and 3-4 cm thick, weighing about 150 grams.
Renal Cortex
The outermost region of the kidney is the...
8.6K
01:28Kidney Transplant I: Introduction
823
A kidney transplant is a surgical approach that involves replacing a non-functioning kidney with a healthy one from a donor. This procedure is often a treatment option for end-stage renal disease (ESRD) patients. The method requires careful recipient selection, including evaluating various medical and psychosocial factors. These criteria vary between transplant centers but generally include assessments of the patient's overall health, adherence to medical recommendations, and lifestyle...
823