Salvianolate is a compound from
traditional Chinese medicine widely used in the treatment of various
cardiovascular diseases. This study explored the effects of
salvianolate on
myocardial infarction and used tandem mass tags (TMT) to discover differentially expressed
proteins. Male Sprague Dawley rats were randomly divided into the
sham operation group, model group, and
salvianolate group. The
myocardial infarction model was established by ligating the left anterior descending coronary artery while the
sham group had a
sham operation. The rats were intraperitoneally injected with 2 ml of 5%
glucose once a day, with 48.438 mg/kg/d
salvianolate for the rats in the
salvianolate group. After 4 weeks, the rats' hemodynamics were measured to evaluate cardiac function, and Masson staining assessed the area of
myocardial infarction. TMT analysis was performed and validated by western blot.
Salvianolate improved cardiac function after
myocardial infarction, reduced the
myocardial infarction area, and protected the myocardial tissue. 100 differentially expressed
proteins were identified between the
sham operation and model groups,
salvianolate reversed the expression of 25 of those
proteins, that were mainly involved in the metabolism of extracellular
collagen matrix and the response to
growth factor stimulation.
Type I collagen,
type V collagen,
chymase, β-
myosin heavy chain, and A-Raf differential expression were consistent in western blotting. In conclusion,
salvianolate had a protective effect on myocardial tissues of rats with
myocardial infarction. Several
proteins including
type I collagen,
type V collagen,
chymase, β-
myosin, and A-Raf may be
salvianolate targets for treatment of
myocardial infarction.