An AST blood test measures levels of aspartate aminotransferase (AST) and helps determine liver function. Too much of this enzyme can indicate a problem, such as liver damage. Aspartate ...

Liver enzymes are proteins in your liver that speed up chemical reactions. If your liver is damaged, blood tests will show abnormally high levels of these enzymes circulating in your bloodstream.

Like most chronic liver diseases, in NAFLD there is a long period during which an individual patient remains essentially asymptomatic. In asymptomatic individuals, the diagnosis is often made when a ...