Lipoprotein A is a type of lipoprotein in plasma, with normal values ranging from 0 to 300 mg/L, with values greater than 300 mg/L considered elevated. Decreased values are often indicative of an increased likelihood of liver disease, and increased values are often indicative of an increased risk of cardiovascular disease.
Lipoprotein A is a special lipoprotein composed of apolipoprotein A and apolipoprotein B through disulfide bonds, synthesized in the liver, and similar in composition to low-density lipoproteins. It prevents the dissolution of blood clots in blood vessels and promotes atherosclerosis formation.
Lipoprotein A can be lowered with severe liver diseases such as hepatitis and liver cancer. Elevation is mainly seen in cardiovascular and cerebrovascular diseases such as atherosclerosis, cerebral infarction, cerebral atherosclerosis, acute cardiac infarction, and acute rheumatoid arthritis.
If a patient’s examination shows abnormal values of lipoprotein A, he or she should consult a doctor for further examination in order to clarify the cause of the disease and treat the cause.