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 ...

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 ...

For patients with chronic viral hepatitis, clinicians instinctively rely on liver enzyme measurements to estimate disease activity and assess need for liver biopsy or antiviral treatment. Although ...