GGTLC1 and cardiovascular disorder: Studies have found that elevated gamma-glutamyl transpeptidase (GGT) is closely related to atherosclerosis, cardiovascular disease, and impaired glucose tolerance (Franzini et al., 2013) and can predict the risk of diabetes, hypertension, MS, and cardiovascular disease independently (Onat et al., 2012; Yadav et al., 2017; Shiraishi et al., 2019).