BioConst — Aspartate aminotransferase (AST)

What it is

AST is an enzyme often included in liver panels.^[1,2]

AST can rise in liver injury contexts and is usually interpreted with ALT and other tests.^[1,2]

Physical core: AST rises when more AST-containing tissue releases enzyme into blood; liver-cell injury is one important context, but AST is not liver-specific by itself. The root signal is enzyme leakage from injured tissue, interpreted through the liver-panel pattern.^[1,2]
Alanine aminotransferase (ALT)Bilirubin Hepatic steatosis Liver fibrosis
Pattern layer: AST becomes more useful when compared with ALT and the rest of the liver panel. A pattern can suggest liver-cell injury or other tissue context, but a standalone AST value cannot decide the source.^[1,2]
Alanine aminotransferase (ALT)Bilirubin Albumin blood level
Boundary: BioConst can explain AST as a pattern-dependent enzyme signal, but it does not identify a person's liver disease, alcohol effect, muscle context, or treatment path.^[1,2]

AST can be affected by non-liver context, so BioConst does not interpret personal AST values.^[1,2]