Alanine aminotransferase (ALT) is an enzyme primarily found in your liver. An enzyme is a protein that helps speed up chemical reactions. ALT is involved in cellular energy production. ALT levels in ...

Dear Dr. Roach: I’m a generally healthy 73-year-old man. I recently had blood work done and was incidentally noted to have high liver tests (ALT and AST). My doctor ordered a sonogram, which said that ...

If you have high ALT levels — a liver enzyme known as alanine aminotransferase — it may be due to a liver problem. Here's what you need to know about these liver enzymes and how to lower your ALT ...

Blood tests can help with the diagnosis of autoimmune hepatitis. These include tests for increased liver enzymes or antibody levels. However, other tests are necessary to confirm the diagnosis.

Dear Dr. Roach: I'm a generally healthy 73-year-old man. I recently had blood work done and was incidentally noted to have high liver tests (ALT and AST). My doctor ordered a sonogram, which said that ...