Serum Transaminases: Quo Vadis
Preetam Nath and Shivaram Prasad Singh*
Department of Gastroenterology, S.C.B. Medical College, 753007 Cuttack, India
- *Corresponding Author:
- Shivaram Prasad Singh
Department of Gastroenterology
SCB Medical College, Cuttack 753007
Tel: +91 671 2505466, +91 671 2323624
E-mail: [email protected]
Received Date: March 15, 2016 Accepted Date: March 21, 2016 Published Date: March 24, 2016
Citation: Nath P, Singh SP (2016) Serum Transaminases: Quo Vadis. Biochem Anal Biochem 5:260. doi:10.4172/2161-1009.1000260
Copyright: © 2016 Nath P, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.
Serum transaminases (also called aminotransferases) are basically enzymes in the human body which help in catalyzing reactions involving transfer of the α-amino groups. Alanine transaminase (ALT) helps in conversion of alanine into pyruvate and Aspartate transaminase (AST) helps in formation of α-ketoglutarate from aspartate . Both AST and ALT are sensitive markers of acute hepatocellular injury and are routinely used to identify liver disease since 1955. Both are readily available, inexpensive, and routinely assayed in clinical practice. AST which was formerly known as serum glutamic oxaloacetic transaminase (SGOT), is found in both cytosol and mitochondria in several organs such as the liver, cardiac muscle, skeletal muscle, kidney, brain, pancreas, lung, leukocytes, and erythrocytes but the concentration is highest in the hepatic parenchyma. On the contrary, ALT (formerly serum glutamic pyruvic transaminase or SGPT) is a cytosolic enzyme which is present predominantly in the liver. Hence ALT is a more specific indicator of liver injury than AST. Serum levels of these enzymes reflect injury of the concerned organs especially the liver. However, the degree of elevation of the serum transaminases may not correlate with the extent of liver injury.