Related Experiment Video
Updated: Feb 3, 2026
10:42
Normothermic Machine Perfusion of Rat Kidneys for Transplantation
Published on: January 27, 2026
7
Experimental Rat Model for Brain Death Induction and Kidney Transplantation
Majid Esmaeilzadeh1, Mahmoud Sadeghi2, Hans E Heissler1
1Department of Neurosurgery, Hannover Medical School, Hannover, Germany.
Summary
This study details a surgical technique for inducing brain death (BD) and performing kidney transplantation (KTx) in rats. The described methods are feasible for experimental settings, offering a reliable model for KTx research.
Area of Science:
- Nephrology
- Surgical Innovation
- Experimental Medicine
Background:
- Experimental animal research, particularly in rats, is crucial for advancing clinical kidney transplantation (KTx).
- Brain death (BD) in donors is a significant risk factor negatively impacting KTx outcomes.
- A lack of standardized surgical guidelines for rat models of BD and KTx necessitates methodological development.
Purpose of the Study:
- To establish standardized surgical guidelines for inducing brain death (BD) in rats.
- To present a reliable cuff technique for experimental kidney transplantation (KTx) in a rat model.
- To evaluate the feasibility and outcomes of an 8-hour observation period following BD induction and KTx.
Main Methods:
- Induction of BD in sixteen male Sprague-Dawley rats via intubation and mechanical ventilation.
- Maintenance of hemodynamic stability for 8 hours post-BD induction.
- Explantation and perfusion of kidneys with histidine-tryptophan-ketoglutarate solution, followed by immediate implantation in recipients using the cuff technique.
Main Results:
- Hemodynamic changes observed during BD included increased heart rate and decreased mean arterial pressure.
- Minor variations in oxygenation and bicarbonate levels were noted.
- All transplanted kidneys exhibited sufficient macroscopic perfusion during the 2-hour observation period, with no instances of hyperacute rejection.
Conclusions:
- Sustaining circulation for 8 hours in experimental BD rat models is feasible.
- The cuff technique for rat KTx is simple, has a low complication rate, and minimizes warm ischemia time.
- This methodology provides a suitable and reproducible model for experimental kidney transplantation research.
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