Biomaterial Database

Gamma-glutamyltransferase and its isoenzymes: progress and problems. 1985

E Nemesánszky, and J A Lott

Because of its sensitivity to disturbances of excretory liver function, gamma-glutamyltransferase (GGT; EC 2.3.2.2) assay has become one of the most important diagnostic tests for hepatobiliary disorders. However, its value in the differential diagnosis of liver diseases is limited. It is present in kidney, liver, pancreas, and intestine in electrophoretically distinct but not necessarily organ-specific forms. Much effort has been expended to relate diseases of these organs to isoenzyme findings in serum. Although the activities of GGT isoenzymes in disease differ from those in health, the existence of disease-specific patterns is controversial. Much is known about the biochemistry, structure, and immunochemistry of GGT, but more work is needed on methods, standardization of terminology, and correlation of isoenzyme findings with diseases. Further progress in the last area should improve the clinical applicability of the isoenzyme activities.

UI	MeSH Term	Description	Entries
D007422	Intestines	The section of the alimentary canal from the STOMACH to the ANAL CANAL. It includes the LARGE INTESTINE and SMALL INTESTINE.	Intestine
D007527	Isoenzymes	Structurally related forms of an enzyme. Each isoenzyme has the same mechanism and classification, but differs in its chemical, physical, or immunological characteristics.	Alloenzyme,Allozyme,Isoenzyme,Isozyme,Isozymes,Alloenzymes,Allozymes
D007668	Kidney	Body organ that filters blood for the secretion of URINE and that regulates ion concentrations.	Kidneys
D008099	Liver	A large lobed glandular organ in the abdomen of vertebrates that is responsible for detoxification, metabolism, synthesis and storage of various substances.	Livers
D008108	Liver Diseases, Alcoholic	Liver diseases associated with ALCOHOLISM. It usually refers to the coexistence of two or more subentities, i.e., ALCOHOLIC FATTY LIVER; ALCOHOLIC HEPATITIS; and ALCOHOLIC CIRRHOSIS.	Alcoholic Liver Diseases,Alcoholic Liver Disease,Liver Disease, Alcoholic
D008113	Liver Neoplasms	Tumors or cancer of the LIVER.	Cancer of Liver,Hepatic Cancer,Liver Cancer,Cancer of the Liver,Cancer, Hepatocellular,Hepatic Neoplasms,Hepatocellular Cancer,Neoplasms, Hepatic,Neoplasms, Liver,Cancer, Hepatic,Cancer, Liver,Cancers, Hepatic,Cancers, Hepatocellular,Cancers, Liver,Hepatic Cancers,Hepatic Neoplasm,Hepatocellular Cancers,Liver Cancers,Liver Neoplasm,Neoplasm, Hepatic,Neoplasm, Liver
D010179	Pancreas	A nodular organ in the ABDOMEN that contains a mixture of ENDOCRINE GLANDS and EXOCRINE GLANDS. The small endocrine portion consists of the ISLETS OF LANGERHANS secreting a number of hormones into the blood stream. The large exocrine portion (EXOCRINE PANCREAS) is a compound acinar gland that secretes several digestive enzymes into the pancreatic ductal system that empties into the DUODENUM.
D002779	Cholestasis	Impairment of bile flow due to obstruction in small bile ducts (INTRAHEPATIC CHOLESTASIS) or obstruction in large bile ducts (EXTRAHEPATIC CHOLESTASIS).	Bile Duct Obstruction,Biliary Stasis,Bile Duct Obstructions,Biliary Stases,Cholestases,Duct Obstruction, Bile,Duct Obstructions, Bile,Obstruction, Bile Duct,Obstructions, Bile Duct,Stases, Biliary,Stasis, Biliary
D004586	Electrophoresis	An electrochemical process in which macromolecules or colloidal particles with a net electric charge migrate in a solution under the influence of an electric current.	Electrophoreses
D004588	Electrophoresis, Cellulose Acetate	Electrophoresis in which cellulose acetate is the diffusion medium.	Cellulose Acetate Electrophoreses,Cellulose Acetate Electrophoresis,Electrophoreses, Cellulose Acetate