Modified cold storage of rat livers with self-made HYD solution

Area of Science:

• Organ transplantation research
• Surgical preservation techniques
• Biomedical engineering

Background:

• Effective cold preservation is crucial for successful organ transplantation.
• Conventional methods face limitations in maintaining organ viability during storage.
• Developing improved preservation solutions is an ongoing area of research.

Purpose of the Study:

• To evaluate the efficacy of a novel cold storage method for rat livers using a self-made HYD solution.
• To compare the preservation effects of varying concentrations of HYD solution against a conventional method.
• To assess the impact of the modified storage on liver function and microcirculation.

Main Methods:

• Rat livers were preserved using a modified cold storage technique involving an in-house HYD solution.
• Different percentages (20%, 30%, 40%) of extra HYD solution were infused into the liver's vascular bed.
• Preservation effectiveness was evaluated using an isolated perfused rat liver model, comparing modified groups to a control group.

Main Results:

• Modified storage groups demonstrated significantly superior bile production and hepatic microcirculation indices compared to controls (P < 0.05).
• Reduced levels of dihydroxybenzoic acid (DHBA) were observed in modified groups, indicating less oxidative stress.
• The 30% HYD solution group exhibited the best preservation outcomes, with markedly lower liver enzyme activities.

Conclusions:

• The modified cold storage method with HYD solution is effective in enhancing rat liver preservation.
• The 30% HYD solution concentration appears optimal for improved liver viability and function.
• This technique shows promise for future clinical applications in liver transplantation.