Biochemical parameters which may be useful in improving organ viability after storage

Area of Science:

• Organ transplantation
• Biochemistry
• Surgical preservation

Background:

• Accurate detection of ischemic damage in stored livers is crucial for developing effective organ preservation solutions.
• Flush cooling is a common method for liver storage, but biochemical markers for damage assessment are needed.

Purpose of the Study:

• To compare University of Wisconsin (UW) and Collins' solutions for liver storage.
• To identify biochemical parameters for assessing ischemic damage and storage solution efficiency.

Main Methods:

• Livers were stored using UW and Collins' solutions.
• Biochemical analysis of adenine nucleotides, NAD, ATP, and DNA damage was performed.
• Statistical analysis was used to compare results between the two storage solutions.

Main Results:

• Livers stored in UW solution exhibited significantly higher adenine nucleotide levels (average 29% increase) compared to Collins' solution.
• UW solution storage led to a significant increase in NAD levels but no significant difference in ATP levels.
• DNA damage was significantly reduced in livers stored with UW solution after 48 hours compared to Collins' solution.

Conclusions:

• UW solution demonstrates superior liver preservation compared to Collins' solution, indicated by higher adenine nucleotides and reduced DNA damage.
• Biochemical parameters like adenine nucleotides, NAD, and DNA damage levels can effectively assess ischemic injury and storage solution efficacy.
• These markers, determinable from liver biopsies, can guide the development of improved organ storage strategies.