Mark Gurarie is a writer covering health topics, technology, music, books, and culture. He also teaches health science and research writing at George Washington University's School of Medical and ...

High levels of liver enzymes can suggest liver inflammation or disease. Liver enzyme tests can help diagnose issues like hepatitis, cirrhosis, and heart disease. Factors like alcohol use and physical ...

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 ...