Rafi and Vastano (92) isolated two homoisoflavonoid compounds from P. odoratum, which were observed to induce the phosphorylation of B-cell lymphoma 2 (Bcl-2, an anti-apoptotic protein that is highly expressed in numerous cancers) and block the G2/M cell-cycle reaction, thereby promoting the apoptosis of cancer cells and exerting the anticancer effect. Here, BCL2 is linked to cancer.