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Published on: December 15, 2011
[Gamma-glutamyltranspeptidase (gamma-GT)]
1Division of Gastroenterology and Hepatology, Department of Internal Medicine, Jikei University School of Medicine.
Gamma-glutamyl transferase (GGT) is an enzyme in liver metabolism. Elevated GGT levels indicate liver disease, and new methods detect GGT specific to liver cancer.
Area of Science:
- Biochemistry
- Enzymology
- Hepatology
Context:
- Gamma-glutamyl transferase (GGT) is a membrane-bound enzyme involved in glutathione metabolism and amino acid transport.
- GGT is present in various organs, including the liver, kidney, and pancreas.
- Serum GGT activity is elevated in hepatobiliary diseases like cholestasis and alcoholic liver disease, but not typically in renal diseases.
Purpose:
- To highlight the role of GGT in liver function and disease.
- To differentiate GGT elevation causes between liver and kidney diseases.
- To introduce novel diagnostic approaches for hepatocellular carcinoma using GGT.
Summary:
- Serum GGT activity is a biomarker for hepatobiliary disorders, particularly liver diseases.
- Electrophoresis can identify GGT isoenzymes specific to hepatocellular carcinoma.
- A new measurement technique for serum GGT specific to liver cancer has been developed.
Impact:
- Improved understanding of GGT's diagnostic utility in liver conditions.
- Potential for earlier and more accurate diagnosis of hepatocellular carcinoma.
- Advancement in biochemical markers for liver disease detection.
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