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Re-Arterialized Rat Partial Liver Transplantation with an in vivo Vessel-Oriented 70% Hepatectomy
Published on: April 8, 2018
Improved preservation and microcirculation with POLYSOL after partial liver transplantation in rats
Shintaro Yagi1, Benedict Marie Doorschodt, Mamdouh Afify
1Institute for Laboratory Animal Science and Experimental Surgery, RWTH-Aachen University, Aachen, Germany.
The Journal of Surgical Research
|March 12, 2011
Summary
POLYSOL, a new preservation solution, significantly improved outcomes in rat partial liver transplants compared to HTK. It enhanced microcirculation, reduced organ damage, and promoted better liver regeneration, indicating superior graft preservation.
Area of Science:
- Transplantation Biology
- Organ Preservation
- Surgical Research
Background:
- Increasing demand for living-donor liver transplantation (LDLT) due to deceased donor shortages.
- Need for improved preservation solutions for partial liver grafts.
Purpose of the Study:
- Compare the efficacy of POLYSOL versus histidine-tryptophan-ketoglutarate (HTK) for cold storage of partial liver grafts.
- Evaluate the impact of POLYSOL on ischemia-reperfusion injury and graft regeneration.
Main Methods:
- Lewis rats underwent 30% partial liver transplantation.
- Grafts were flushed and stored for 3 hours at 5°C in either HTK or POLYSOL (n=25 each).
- Graft function, injury markers, and regeneration were assessed post-reperfusion.
Main Results:
- POLYSOL significantly improved portal venous flow, microcirculation, and reduced levels of ALT, LDH, total bilirubin, and malondialdehyde.
- Enhanced liver regeneration observed with POLYSOL, indicated by increased liver weight and Ki-67 labeling index.
- POLYSOL led to higher portal VEGF expression, suggesting improved vascularization.
Conclusions:
- POLYSOL demonstrates superior performance in preserving partial liver grafts compared to HTK.
- Improved microcirculation with POLYSOL contributes to better graft quality and function post-transplantation.
