Glutaminase, clinically known as alanine aminotransferase, has a normal reference range of 5-40 U/L. Glutaminase, clinically known as aspartate aminotransferase, has a normal reference range of 8-40 U/L. Both are serum aminotransferases, referred to as transaminases, and are the main indicators used in liver function tests. Alanine aminotransferase, is mainly found in the liver, but also in skeletal muscle, kidney, heart muscle and other tissues. Aspartate aminotransferase, mainly in the heart muscle, but also in the liver, skeletal muscle and kidney tissues. In acute viral hepatitis, both ghrelin and ghrelin are significantly elevated, up to 20-50 or even 100 times the upper limit of normal, but ghrelin is more pronounced. Glutathione aminotransferase is also increased 6-8 hours after acute myocardial infarction and peaks at 18-24 hours.