If the ratio of glutamic oxalyl aminotransferase to glutamic alanine aminotransferase is low, then generally the ratio of glutamic alanine aminotransferase to glutamic oxalyl aminotransferase is less than or equal to 1, which is the range of normal value, then when the ratio will be low. For example, chronic viral hepatitis, into the active stage of the possible, may be the glutathione aminotransferase high, then the glutathione aminotransferase than the glutathione aminotransferase to low, less than 1 possible. In addition, in patients with alcoholic liver disease, or drug-related hepatitis, fatty liver, or liver cancer, glutathione aminotransferase is high, so the ratio of glutathione to glutathione aminotransferase is less than 1. Then, in general, in acute viral hepatitis, the ratio of glutathione to glutathione aminotransferase is greater than 1, which means that it is an important test for the diagnosis of viral hepatitis.