Related Experiment Video
Updated: May 10, 2026

09:22
Method of Direct Segmental Intra-hepatic Delivery Using a Rat Liver Hilar Clamp Model
Published on: April 2, 2017
Current knowledge on oxidative stress in hepatic ischemia/reperfusion.
M Elias-Miró1, M B Jiménez-Castro, J Rodés
1Institut d'Investigacions Biomèdiques August Pi i Sunyer, Barcelona (IDIBAPS), Spain.
Free Radical Research
|June 7, 2013
Summary
Hepatic ischemia/reperfusion (I/R) injury involves reactive oxygen species (ROS) and oxidative stress, particularly in marginal liver grafts. New antioxidant strategies offer promise for improving outcomes.
Area of Science:
- Hepatology
- Transplantation immunology
- Oxidative stress research
Background:
- Ischemia/reperfusion (I/R) injury is a significant complication in liver surgery and transplantation.
- I/R injury disrupts tissue redox balance, causing reactive oxygen species (ROS) accumulation and oxidative stress.
- Marginal liver grafts are especially susceptible to I/R-induced oxidative stress, impacting transplant success.
Purpose of the Study:
- To review the sources and effects of ROS in hepatic I/R injury.
- To examine the impact of oxidative stress on marginal livers.
- To discuss therapeutic strategies for mitigating hepatic I/R injury and their clinical translation.
Main Methods:
- Comprehensive literature review of published results on hepatic I/R injury.
- Analysis of ROS generation and oxidative stress mechanisms.
- Evaluation of current and emerging antioxidant therapies.
Main Results:
- ROS and oxidative stress are key mechanisms in hepatic I/R injury.
- Marginal livers exhibit heightened vulnerability to oxidative damage.
- Many therapeutic strategies face challenges in clinical application.
Conclusions:
- Understanding ROS sources and oxidative stress is crucial for managing hepatic I/R injury.
- Improving marginal liver viability is essential for increasing transplantation rates.
- Further development and clinical validation of novel antioxidant strategies are needed.
Related Concept Videos
Peroxisomes
Peroxisomes are specialized organelles present in fungi, plant, and animal cells. It can vary in number, size, morphology, and activity depending on the type of tissue and the nutritional state of the cell. For example, cells with active lipid metabolism, such as adipocytes, neurons, and hepatocytes, have more peroxisomes than other cells in the body. Besides their primary role in breaking down complex organic molecules, peroxisomes can also synthesize specific macromolecules and participate in...
Cellular Injury I: Introduction
Cellular injury occurs when a cell cannot maintain homeostasis or adapt to stressors such as hypoxia, toxins, or trauma. Depending on severity and duration, injury may be reversible, allowing recovery, or irreversible, leading to cell death.General Mechanisms of Cell InjuryAlthough causes vary, most cellular injuries arise from a few key mechanisms that disrupt essential functions and often amplify one another. Cell survival depends on the extent and balance of these disturbances.ATP depletion...
Ischemic Stroke ll: Pathophysiology
An ischemic stroke occurs when a cerebral blood vessel becomes obstructed, most often by a thrombus or embolus, interrupting the delivery of oxygen and glucose to brain tissue. Because neurons rely on continuous aerobic metabolism, energy failure begins within minutes of reduced perfusion. The region receiving the least blood flow becomes the infarct core, an area of irreversible cellular death. Surrounding this core lies the penumbra, a zone of hypoperfused but still viable tissue that is...

