Aspartate aminotransferase (AST), Serum

Aspartate aminotransferase (AST) is an enzyme found in Liver, , heart, and muscle cells. Normally, AST levels in the blood are very low. When these tissues are damaged, the enzyme is released into the bloodstream, making it an indicator of damage.

AST function: Aspartate aminotransferase (AST) is an enzyme involved in amino acid Metabolism. It is found in high concentrations in Liver, , heart, and muscle cells. Normally, its level in the blood is minimal, but when these organs are damaged, AST is released into the bloodstream.
Damage indicator: AST levels increase in the blood when tissues such as the Liver, (Hepatitis, Cirrhosis) or heart (Myocardial infarction) are damaged. High enzyme levels can indicate serious diseases.
Diagnostic significance: The AST test is used to detect Liver, , heart muscle, and muscle tissue damage. It is often ordered alongside other tests, such as ALT, for accurate diagnosis.