Abstract
In this paper, by examining the toxicity of nano-silica to coronary heart disease cells, we explored the apoptosis of rat myocardial cells induced by nano-silica, and explored the effect of apoptosis on cells during the process of myocardial cytotoxicity induced by nano-silica. This article selects rat cardiomyocytes as the research object and conducts a group control experiment. A control group is set up with cells that are not stained with nano-silica. Different concentrations of nanosilica suspensions are applied to rat cells and detected by CCK-8 method. Cell survival rate after exposure to different concentrations of cells is used to determine the most stable exposure time and concentration. We used flow cytometry to detect intracellular reactive oxygen species and apoptotic rates, and used Western Blot to detect the expression of proteins that affect apoptosis. Finally, we investigated the effect of the Wnt signaling pathway on coronary heart disease. The Wnt signaling pathway regulates the development of the heart and blood vessels. In the treatment of cardiovascular disease, this pathway will be activated again to play a regulatory role. We conclude that nano-silica can induce cytotoxicity in rat myocardial cells through the Wnt-1 pathway, and nanosilica can induce myocardial cell apoptosis through the Wnt-1 pathway.
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