Elevation of glutamic pyruvic transaminase and gamma-glutamyl transpeptidase in obesity.

Study was made of glutamic pyruvic transaminase (GPT), glutamic oxalacetic transaminase (GOT), and gamma-glutamyl transpeptidase (gamma-GTP) in 729 obese subjects in various groups, namely, primary school children, high school children, university students, and outpatients. The incidences of abnormal GPT, GOT, and gamma-GTP in the obese subjects were frequently significantly higher than in the controls. It was most clearly shown in GPT. The incidences of abnormal GPT in the obese females were significantly lower than those in the obese males, but were significantly higher than the controls. Higher incidences of abnormality in the school children were ascribed to the higher degree of obesity in the children. The extent of increase in GPT was considerable. GPT was sometimes higher than 6 times the normal upper limit.