Ischemia Simulation
Ischemia Simulation - Related Videos
09:15
Stem Cell Transplantation in an in vitro Simulated Ischemia/Reperfusion Model
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Cited by 3 •
2011
We demonstrate how to set up an in vitro ischemia/reperfusion model and how to evaluate the effect of stem cell therapy on postischemic cardiac cells.
10:07
Organ Ischemia-Reperfusion Injury by Simulating Hemodynamic Changes in Rat Liver Transplant Model
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Cited by 1 •
2021
This paper provides a detailed description of how to build an animal model of the anhepatic phase (liver ischemia) in rats to facilitate basic research into ischemia-reperfusion injury after liver transplantation.
12:51
Murine Model of Hindlimb Ischemia
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Cited by 200 •
2009
The surgical procedure for induction of unilateral hindlimb ischemia is demonstrated, with confirmation of ischemia by laser Doppler perfusion imaging.
01:16
Visualizing Cerebral Blood Flow During Ischemia in a Mouse Using a Fluorescent Tracer
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2025
Make a neck incision to expose and loosely ligate the bilateral common carotid arteries.
09:29
2-Vessel Occlusion/Hypotension: A Rat Model of Global Brain Ischemia
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Cited by 35 •
2013
Bilateral carotid occlusion coupled with systemic hypotension produces global brain ischemia in the rat, resulting in damage to the hippocampus with reproducible severity. Animal subjects are impaired with predictable patterns of brain damage, they recover expediently, and mortality rates are comparatively low.
FAQs
The model links reduced oxygen delivery with energy depletion, cellular stress, and subsequent tissue damage. By controlling the severity and duration of oxygen limitation, investigators can examine how biological systems respond as conditions worsen. This makes it possible to relate specific experimental conditions to injury-related outcomes in cells, tissues, or organs.
Limiting glucose and nutrient availability makes the experimental environment more closely reflect the combined resource shortage associated with interrupted blood flow. Oxygen reduction alone does not reproduce every condition described in ischemia. Including nutrient limitation allows researchers to study how restricted oxygen, energy sources, and other resources together influence cellular stress and damage.
Reintroducing oxygen and nutrients after the deprivation period models the transition from ischemia to reperfusion. This additional phase allows researchers to investigate injury associated with restoration, rather than examining deprivation alone. Comparing conditions before and after restoration can help characterize ischemia-reperfusion injury and evaluate whether a treatment provides protection during this transition.
Researchers can regulate whether cells, tissues, or organs experience hypoxic or anoxic conditions, as well as whether glucose and nutrients remain available. They can also determine whether oxygen and nutrients are later restored. This control supports systematic comparisons between deprivation, restoration, and other experimental conditions, helping connect environmental changes with biological stress and tissue injury.
A typical design establishes a controlled period of reduced or absent oxygen delivery, with glucose and nutrients limited when the research question requires it. The system may then undergo a restoration period in which oxygen and nutrients return. Researchers compare biological responses across these stages to assess energy depletion, cellular stress, tissue damage, or protection.
Biologists apply these models to questions involving stroke, myocardial infarction, organ preservation, and potential protective treatments. Because conditions can be controlled in cells, tissues, or organs, the approach helps investigate how injury develops during blood-flow interruption and restoration. It also provides a framework for evaluating responses relevant to disease mechanisms and preservation strategies.