Nattokinase is a serine protease produced by Bacillus subtilis natto during natto fermentation. Its functions and effects are extensive, mainly including enhancing immunity, dissolving blood clots, preventing coronary heart disease, regulating blood lipids, and regulating blood pressure. The specific analysis is as follows:

1. Enhancing immunity: Nattokinase also has a certain effect of enhancing immunity, which can help the body resist the invasion of diseases.

2. Thrombolysis: Nattokinase has a strong ability to dissolve blood clots, with strong thrombolytic power, fast speed, and long-lasting effects. It indirectly achieves the goal of decomposing blood clots by directly decomposing them and increasing the amount of tissue plasminogen activator. At the same time, it activates the precursor of urokinase, which is converted into active urokinase and further decomposes blood clots. This characteristic makes nattokinase play an important role in the prevention and treatment of thrombotic diseases such as cerebral infarction and myocardial infarction.

3. Preventing coronary heart disease: The longevity factor in nattokinase can protect endothelial cells from damage, thereby clearing blood vessels and preventing arteriosclerosis. This is of great significance for reducing the risk of cardiovascular diseases such as coronary heart disease.