What level of ALT means liver damage?
A normal AST:ALT ratio should be <1. In patients with alcoholic liver disease, the AST:ALT ratio is >1 in 92% of patients, and >2 in 70%. AST:ALT scores >2 are, therefore, strongly suggestive of alcoholic liver disease and scores <1 more suggestive of NAFLD/NASH.
Why is ALT more specific than AST for hepatocellular damage?
Both aminotransferases are highly concentrated in the liver. AST is also diffusely represented in the heart, skeletal muscle, kidneys, brain and red blood cells, and ALT has low concentrations in skeletal muscle and kidney;21 an increase in ALT serum levels is, therefore, more specific for liver damage.
What can cause your ALT to be high?
Moderately high ALT levels may be because of:
- Chronic (ongoing) liver disease.
- Alcohol abuse.
- Cirrhosis.
- Blockage of the bile ducts.
- Heart attack or heart failure (when your heart can’t pump enough blood to your body)
- Kidney damage.
- Muscle injury.
- Damage to red blood cells.
What causes mild hepatocellular damage?
The main causes are: hepatitis viruses passed from person to person; what we eat and drink (eg. alcohol, some herbal medicines, fatty food) and whether we are overweight; autoimmune disorders; genetic disorders. As liver cells try to heal themselves, they can become damaged.
Should I be worried if my ALT is high?
High levels of ALT may indicate liver damage from hepatitis, infection, cirrhosis, liver cancer, or other liver diseases. Other factors, including medicines, can affect your results. Be sure to tell your health care provider about all the prescription and over-the counter medicines you are taking.
Can mild hepatocellular damage heal?
The liver damage associated with mild alcoholic hepatitis is usually reversible if you stop drinking permanently. Severe alcoholic hepatitis, however, is a serious and life-threatening illness.
What causes hepatocellular damage?
This serious disease happens when liver cells are damaged and replaced with scar tissue. Many things can cause it: hepatitis B or C infection, alcohol drinking, certain drugs, and too much iron stored in the liver.