AST: Aspartate transaminase DEXA: Dual-energy X-ray absorptiometry DYAR: Dog years at risk GC/MS: Gas chromatography/mass spectrometry GGT: 
Gamma-glutamyltransferase GSH: Glutathione LC/MS: Liquid chromatography/tandem mass spectrometry OTU: Operational taxonomic units PCA: Principal component analysis RF: Random forest T3: Triiodothyronine T4: Thyroxine TAS: Total antioxidant status WGCNA: Weighted gene coexpression network analysis.
Comparison of serum 
gamma-glutamyltransferase levels between patients with cardiac syndrome X and healthy asymptomatic individuals.
Gamma-glutamyltransferase (GGT): Gamma ()- glutamyltransferase (GGT) is an enzyme known to contribute to the extracellular catabolism of glutathione (GSH) (Grundy 2007) and is an important tool for the diagnosis of liver disorders.
 Joint effects of coffee consumption and serum 
gamma-glutamyltransferase on the risk of liver cancer.
Serum 
gamma-glutamyltransferase (GGT) and alanine aminotransferase (ALT) are markers of NAFLD and of liver fat content [10, 11].
Gamma-glutamyltransferase is a predictor of incident diabetes and hypertension: the Coronary Artery Risk Development in Young Adults (CARDIA) Study.
 Should we use carbohydrate-deficient transferrin instead of 
gamma-glutamyltransferase for detecting problem drinkers?
Increase in 
gamma-Glutamyltransferase Level and Development of Established Cardiovascular Risk Factors and Diabetes in Japanese Adults.
Another noninvasive marker, the ratio of the platelet count to spleen size, was also used, and the usefulness of LFTs, alanine aminotransferase, aspartate aminotransferase, bilirubin, and 
gamma-glutamyltransferase were assessed.
Validity of carbohydrate-deficient transferrin (%CDT), 
gamma-glutamyltransferase (gamma-GT) and mean corpuscular erythrocyte volume (MCV) as biomarkers for chronic alcohol abuse: a study in patients with alcohol dependence and liver disorders of non-alcoholic and alcoholic origin.