Carcinoembryonic antigen is a protein that is undetectable in the blood of healthy people. When this protein appears in the blood of adults, it indicates the development of cancer but does not indicate the type of cancer.
Mb is an oxygen-binding protein that is widely found in skeletal muscle, cardiac muscle, and smooth muscle, accounting for about 2% of all proteins in muscle.
The increase in BNP or NT-proBNP in heart failure is related to the degree of heart failure and has unique predictive value for left ventricular dysfunction or mortality from AMI.
Recent research suggests that elevated cystatin C levels may also indicate an increased risk of heart disease, heart failure, myocardial infarction, and cardiac death.
It is an acute-phase protein that is synthesized in the liver and binds to plasma high-density lipoprotein (HDL). It is similar to CRP and is used to evaluate the process of acute-phase reactions.
CRP is an acute-phase protein whose serum or plasma levels are increased during routine, nonspecific responses to infectious and non-infectious inflammatory effects such as rheumatoid arthritis, cardiovascular disease, and peripheral vascular disease.
1. The plasma PCT mass concentration of healthy people is less than 0.05ng/ml.
2. The plasma PCT mass concentration of the elderly, patients with chronic diseases, and less than 10% of healthy people is higher than 0.05ng/ml, up to 0.1ng/ml, but generally not more than 0.3ng/ml.