BCL2 and glioma: Daidzein induces the arrest in the cell cycle, while it lowers the cells proliferation in glioma cell U87M, U251, U‐118MG, and A‐172 at a dose of 0–20, 40, and 80 μM, respectively, by downregulating the expression of Bcl‐2 and CD44/moesin /β‐catenin signaling pathway in vitro manner.171