Simultaneous elevation of GLUTA may be due to liver diseases such as cirrhosis and hepatitis. However, it may also be the result of heart disease such as heart failure and myocarditis. Glutamine, or glutamine aminotransferase, is found mainly in liver tissue, and glutamic oxal transaminase can also be found in the heart. The simultaneous elevation of alanine aminotransferase and glutamine aminotransferase may be a liver disease, indicating that the patient’s liver function has been damaged, which is clinically seen in liver diseases such as cirrhosis, viral hepatitis, fatty liver, and so on. In addition to liver disease, there are many reasons for the simultaneous elevation of ALT and AST, and cardiac diseases, such as heart failure, myocarditis, acute myocardial infarction, etc., should also be considered. Under normal circumstances, the reference range for AAT is 5-40 U/L for men and 5-35 U/L for women; the reference range for AAT is 8-40 U/L. For people with elevated AAT, further tests are needed to clarify the cause.