The test measures gamma-glutamyl transferase (GGT) – an enzyme produced primarily by the liver and catalyzes glutathione, the main antioxidant in the body. The enzyme is elevated in some forms ...

Doctors use the gamma-glutamyl transferase (GGT) blood test to diagnose liver problems. High levels of GGT can indicate damage to the liver or bile ducts, or other conditions. A typical range for ...

A simple blood test may identify people who have an increased risk of dying from cardiovascular disease, researchers report in Circulation: Journal of the American Heart Association. A simple ...