Alcoholic hepatitis is a severe form of liver inflammation caused by excessive alcohol consumption. It can be accompanied by a number of serious symptoms, including jaundice, abdominal pain, and fatigue. While both AST (aspartate transaminase) and ALT (alanine transaminase) are liver enzymes that are present in the blood, it is common for AST levels to be higher than ALT levels in patients with alcoholic hepatitis.
What are AST and ALT?
AST and ALT are two enzymes that are found in the liver. They are released into the bloodstream when the liver is damaged or inflamed. AST and ALT are used to measure liver function, as their levels will rise if the liver is not functioning properly.
What Causes the Difference in AST and ALT Levels?
The main reason why AST is typically higher than ALT in alcoholic hepatitis is due to the type of tissue damage that occurs. In alcoholic hepatitis, the damage is primarily caused by the direct toxic effect of alcohol on the liver cells. This damage causes the AST levels to rise more than the ALT levels.
Another factor that may contribute to the difference in AST and ALT levels is that AST is also found in other organs, such as the heart and muscles. This means that even if the liver is not damaged, the AST levels may still be elevated if there is damage to other organs.
How is the Difference in AST and ALT Levels Used to Diagnose Alcoholic Hepatitis?
The difference between AST and ALT levels is used to help diagnose alcoholic hepatitis. If the AST levels are more than double the ALT levels, it is a strong indication of alcoholic hepatitis. However, it is important to note that other conditions can also cause a similar elevation in AST levels, so the diagnosis should be made in conjunction with other tests and a thorough medical history.
In conclusion, the difference between AST and ALT levels is a useful tool for diagnosing alcoholic hepatitis. This difference occurs due to the type of tissue damage that is caused by alcohol, as well as the fact that AST is found in other organs. It is important to note, however, that other conditions can also cause elevated AST levels, so the diagnosis should always be made in conjunction with other tests and a thorough medical history.