cTnI

Cardiac troponin I (cardiac troponin I, cTnI) is a regulatory proteins related to the cardiac muscle and skeletal muscle contraction. free type cTnI can be rapidly released from cells into the bloodstream firstly, and then associative cTnI combining in myocardial structural protein disintegrated gradually and released into the blood circulation slowly, which can help cTnI appeared earlier in the circulating blood and last for a long time. cTnI has some characteristics like high sensitivity, high specificity, long detection window, which makes it receive more and more favors in  the diagnosis of myocardial infarction, risk stratification ,prognosis evaluation, clinical formulate and the adjusting of treatment plan.  CTnI has been the gold standard of myocardial injury.