Tissue Ischemia
Tissue Ischemia - Related Videos
03:40
TTC Staining of Rat Brain Tissue Slices: A Staining Procedure to Differentiate Viable and Necrotic Tissue in Tissue Slices After Ischemia-Reperfusion Injury
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2025
This video describes the 2,3,5-triphenyl-2H-tetrazolium chloride staining procedure to visualize rat brain tissue slices and differentiate viable and damaged tissue following middle cerebral artery occlusion and reperfusion.
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.
05:53
Use of a Hanging-weight System for Liver Ischemia in Mice
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Cited by 4 •
2012
We established a novel murine model of a hanging weight system for portal triad occlusion. This technique may be useful for future investigations of ischemia in murine hepatic models.
07:07
Murine Model of Intestinal Ischemia-reperfusion Injury
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Cited by 52 •
2016
Here we describe the detailed procedure of intestinal ischemia-reperfusion in mice which results in reproducible injury without mortality to encourage the standardization of this technique across the field. This model of intestinal ischemia-reperfusion injury can be utilized to study the cellular and molecular mechanisms of injury and regeneration.
07:57
Methods for Acute and Subacute Murine Hindlimb Ischemia
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Cited by 31 •
2016
Surgical induction of hindlimb ischemia in the mouse is useful to examine angiogenesis, however this is compromised in certain inbred mouse strains that display marked ischemia-induced tissue necrosis. Methods are described to induce subacute limb ischemia using ameroid constrictors to circumvent this problem through the induction of gradual arterial occlusion.
FAQs
The immediate biological consequence is restricted oxygen delivery, which limits cellular respiration and reduces ATP production. ATP normally supports energy-dependent cellular processes, so its depletion contributes to disrupted ion balance and declining membrane function. This sequence links inadequate circulation to progressive cellular dysfunction rather than treating oxygen shortage as an isolated event.
These conditions differ in origin but share a common effect: they reduce effective perfusion reaching tissue. Vessel obstruction blocks flow, compression restricts vessels mechanically, and low blood pressure can reduce the driving force for circulation. Because each limits oxygen and nutrient delivery, all can promote metabolic waste accumulation, acidity, and energy failure.
As ischemia persists, declining ATP availability and disturbed ion balance impair normal cell regulation. Membrane damage then develops, weakening the boundary that maintains the cell’s internal environment. If circulation is not restored sufficiently, these changes can advance from reversible cellular stress toward irreversible injury and tissue death.
Restoring circulation can create additional injury rather than simply reversing ischemic damage. Reperfusion may promote oxidative stress and inflammation in tissue whose cellular systems and membranes have already been disturbed. Consequently, biological evaluation must consider both the consequences of inadequate flow and the damage that may accompany its restoration.
Heart attacks and strokes illustrate how impaired perfusion can damage specialized tissues with high functional demands. In each setting, reduced circulation disrupts cellular respiration and energy balance, while prolonged injury may produce tissue death. Comparing these conditions helps biology connect vascular changes with organ-level dysfunction and guides investigation of protective strategies.
Research on this process can inform diagnostic, protective, and therapeutic strategies for ischemic injury. Investigators can use the links among perfusion, ATP depletion, ion imbalance, membrane damage, oxidative stress, and inflammation to identify clinically relevant points of intervention. The same framework also supports analysis of organ damage beyond the heart and brain.