The balance of intracellular cholesterol level is important for the physiological function of cells. Disrupted the dynamic balance of intracellular cholesterol level not only significantly increases the risk of cardiovascular diseases, but also is associated with many metabolic diseases. Intracellular cholesterol level is mainly regulated by cholesterol biosynthesis, uptake, efflux and esterification. 3-Hydroxy-3-methyl-glutaryl coenzyme A reductase (HMGCR), squalene monooxygenase (SQLE) and sterol regulatory element binding protein 2 (SREBP2) ...