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Updated: Feb 19, 2026
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Organ Ischemia-Reperfusion Injury by Simulating Hemodynamic Changes in Rat Liver Transplant Model
Published on: March 6, 2021
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Experimental Hepatic Ischemia-Reperfusion Injury Model in Rats: the Optimum Ischemia and Reperfusion Durations
Ender Fakıoğlu1, Gamze Bilgili, Binnaz Handan Özdemir
1From Başkent University, Faculty of Medicine, Department of Medical Biology, and Başkent University, Faculty of Medicine, Department of Pediatric Surgery, Ankara, Turkey.
Summary
Establishing a reliable rat model for hepatic ischemia-reperfusion injury is crucial. Forty-five minutes of ischemia followed by six hours of reperfusion effectively induced injury, balancing reproducibility and survival for future research.
Area of Science:
- Hepatology
- Surgical Research
- Animal Models
Background:
- Hepatic ischemia-reperfusion injury (HIRI) significantly impacts liver transplant outcomes.
- Standardized protocols for HIRI in rat models are lacking, hindering research reproducibility.
Purpose of the Study:
- To determine optimal ischemia and reperfusion durations for a reliable rat model of HIRI.
- To establish a reproducible experimental setup for studying HIRI.
Main Methods:
- Male Wistar rats underwent 45 or 90 minutes of hepatic ischemia, followed by 3, 6, 12, 24, or 48 hours of reperfusion.
- Evaluated outcomes included survival rates, Suzuki scores for liver damage, neutrophilic infiltration, and biochemical markers.
- High-mortality groups (90 min ischemia or >6 hr reperfusion) were excluded from analysis.
Main Results:
- The 45-minute ischemia/6-hour reperfusion group showed significant HIRI compared to sham and 3-hour groups.
- Biochemical markers (ALT, AST, ATP, oxidant status, MPO, TNF-α) and histopathology confirmed substantial liver injury.
- 3-hour reperfusion resulted in only mild biochemical changes without significant tissue damage.
Conclusions:
- A 45-minute ischemia and 6-hour reperfusion protocol reliably induces HIRI in rats.
- This standardized model offers a balance between reproducibility and animal survival.
- Provides a robust foundation for future HIRI research in animal models.
