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Published on: October 31, 2012
Serum alcohol dehydrogenase: a sensitive biomarker of ongoing graft function after liver transplantation
Naoki Shimojima1, Motohide Shimazu, Haruhito Kikuchi
1Department of Surgery, Keio University School of Medicine, Tokyo, Japan. shimazu@sc.itc.keio.ac.jp
Insights
Serum alcohol dehydrogenase (ADH) activity aids in monitoring liver transplant graft function. Elevated ADH levels can indicate vascular complications, offering earlier detection than traditional liver enzymes.
Area of Science:
- Hepatology
- Biochemistry
- Transplantation Medicine
Background:
- Alcohol dehydrogenase (ADH) is a key cytoplasmic enzyme in hepatocytes.
- Liver transplantation requires reliable biomarkers to assess graft function and detect complications.
- Current biomarkers like ALT and AST have limitations in early complication detection.
Observation:
- Serum ADH activity was evaluated in 26 liver transplant recipients.
- Normal graft function showed serum ADH activity normalizing within 2.9 +/- 1.2 days.
- Vascular complications were associated with markedly elevated serum ADH activity.
Findings:
- Serum ADH activity was only slightly elevated or normal in acute cellular rejection.
- In vascular complications, ADH peaked before ALT and AST elevations.
- Serum ADH normalized faster than ALT and AST after resolving vascular issues.
Implications:
- Monitoring serum ADH activity offers a sensitive indicator of liver graft status.
- ADH may aid in the differential diagnosis between vascular complications and cellular rejection.
- Integrating ADH monitoring could improve post-transplant patient management and outcomes.
Abstract:
Alcohol dehydrogenase (ADH) is an enzyme specifically located in the cytoplasm of hepatocytes. The purpose of this study was to assess the potential usefulness of serum ADH activity as a biomarker of graft function following liver transplantation. Blood samples were obtained from 26 patients who underwent living-donor liver transplantation. In patients without any post-operative complication, serum ADH activity normalized at 2.9 +/- 1.2 d. Values of serum ADH activity were remarkably elevated in patients with vascular complications, whereas they were only slightly elevated or remained within the reference range in patients with acute cellular rejections. In vascular complications, serum ADH activity peaked prior to elevation of alanine aminotransferase (ALT) and aspartate aminotransferase (AST), and once the cause of damage was resolved, the values returned to reference range more quickly than did ALT and AST. In conclusion, monitoring serum ADH activity in addition to ALT and AST may provide more sensitive ongoing graft status and valuable information for the differential diagnosis of vascular complications and acute cellular rejection.
