Kong M, et al. - In this prospective cohort study, experts scrutinized the connection between gamma-glutamyl transferase (GGT), alanine transaminase (ALT) and aspartate transaminase (AST) levels during early-middle pregnancy and subsequent risk of gestational diabetes mellitus (GDM). For this study, pregnant women enrolled prior to 16 weeks of gestation were followed up until delivery. Data reported that pregnant women with higher serum GGT during early-middle pregnancy had a higher risk of developing GDM. They suggested that GGT level >26.9 U/L could indicate an increased risk of developing GDM later and should be further concerned.